Site log - Kwaj (Nov 1998)

Flags:

1-Satellite coincidence data
2-Scan in TSDIS data
3-Scan not in TSDIS data
A-Major problem (moderate to strong AP &/or widespread coverage)
B-Minor problem (weak AP &/or very little coverage)

*******************************************************************************

01 Nov 98:    Widespread coverage of showers with embedded convection continues
              for most of the day.  Several large convective clusters with heavy
              rain develop and push into the radar FOV from the E and SE.  After
              19Z, the activity becomes more scattered in coverage.  Overall, a
              very heavy precip day.
              
              Data gap from 0417Z to 0803Z due to waveguide leak and resulting
              transmitter shutdown.
              
              Data Analyzed:  0001-0403Z
                              0803-2354Z
                              
              Satellite Coincidence:  0427Z(596 km), 1548Z(597 km)
              
              QC notes:  0001-0254Z:  Intense clutter specks (some embedded in precip) North of
                                      radar near atoll edge.
                              ---->   Partially Corrected - some clutter removed (see flags)
                              
 2A,3A        !!FLAG!!   0001-0053Z:  Intense clutter specks embedded in precip near radar.
 3A           !!FLAG!!        0123Z:  Intense clutter specks embedded in precip near radar.
 3A           !!FLAG!!   0246-0254Z:  Intense clutter specks embedded in precip near radar.
              
                         0302-0355Z:  Small patches of light/moderate second trip echo SE and SW
                                      of the radar at mid/far range.  Also, some intense clutter
                                      specks near radar.
                              ---->   Corrected - spurious echo removed
                                      
 1A           !!FLAG!!   0417-0456Z:  Transmitter failure - scans corrupt; moved to 'bad_files'
                                      directory
                                      
 1A           !!FLAG!!        0403Z:  Ring of missing precip echo surrounding radar.  This is just
                                      before the transmitter failure.
                              ---->   Most precip reinstated except for a small ring around radar.
                                      Unfortunately, clutter specks and second trip echo were also
                                      reinstated.
                                      
                         0803-0826Z:  Small patches of light second trip echo SE of radar. Also,
                                      intense clutter specks (some embedded in precip) near radar.
                              ---->   Partially Corrected - second trip echo removed at the expense
                                      of a few light showers.  Embedded clutter could not be removed.
                                      
 2A,3A        !!FLAG!!   0818-0826Z:  Intense clutter specks embedded in precip near radar.
                                      
                         1125-1319Z:  Small patches of light second trip echo SE of radar. Also,
                                      intense clutter specks (some embedded in precip) near radar.
                              ---->   Partially Corrected - second trip echo removed at the expense
                                      of a few light showers.  Embedded clutter could not be removed.
                                      
 2A,3A        !!FLAG!!   1133-1156Z:  Intense clutter specks embedded in precip near radar.
 2A           !!FLAG!!        1305Z:  Intense clutter specks embedded in precip near radar.
                                      
                         1358-1405Z:  Small patch of moderate second trip echo NW of radar
                              ---->   Corrected - second trip echo removed
                         
                         1428-1937Z:  Larger patches of second trip echo mainly W of radar at
                                      mid/far range.  Some intense clutter specks are also present.
                              ---->   Partially Corrected - some second trip and clutter remain and
                                      cannot be removed without removing significant precip.
                                      
 2A,3A       !!FLAG!!   1428-1506Z:  Patchy second trip and intense clutter could not be removed.
 1A,2A,3A    !!FLAG!!   1606-1806Z:  Patchy second trip and intense clutter could not be removed.
                                 *   SECOND TRIP RANGE ~ 100-150 km
 
                                      
                        2037-2354Z:  Larger patches of second trip echo mainly E of radar at
                                     mid/far range.  Some intense clutter specks are also present.
                             ---->   Corrected - spurious echo removed
                         
*******************************************************************************                         

02 Nov 98:    Scattered showers and strong convective cells are present during the first few
              hours of the day.  The intensity gradually weakens and the system transitions
              into a region of light to moderate rain before dissipating and moving out of the
              radar FOV.  Near 1630Z, a thin line of strong convection moves over the radar site.
              
              Data Analyzed:  0002-2030Z
                              2241-2359Z
                              
              Satellite Coincidence:  0451Z(266 km), 1436Z(70 km)
              
              QC notes:  0002-0203Z:  Light to moderate second trip echo E of radar
                              ---->   Corrected - second trip echo removed
              
                         0356-0635Z:  Light to moderate second trip echo NW of radar.
                                      Also, intense clutter specks near radar 0505-0550Z
                              ---->   Corrected - spurious echo removed
                                      
 3B           !!FLAG!!        0728Z:  Moderate clutter specks along atoll edge N of radar.
                              ---->   Partially Corrected - the most intense specks were removed
                                      but a small speck of moderate clutter cannot be removed
                              
 2B           !!FLAG!!        0933Z:  Moderate clutter specks along atoll edge N of radar.
                              ---->   Speck cannot be removed
                              
                         1025-1134Z:  Moderate clutter specks along atoll edge N of radar.
                              ---->   Corrected - clutter either removed or signifiantly reduced
                                      in intensity.
                         
                         1235-1406Z:  Light second trip echo NW of radar + some clutter specks
                              ---->   Corrected - spurious echo removed
                         
                         1506-1521Z:  Intense clutter specks near radar.
                              ---->   Corrected - clutter specks removed
                         
 2A,3A        !!FLAG!!   1536-1551Z:  Intense clutter specks embedded in precip near radar.
                         
                         1636-1851Z:  Light to moderate second trip echo NW of radar + a few
                                      clutter specks
                              ---->   Partially Corrected - most spurious echo removed (see flag)
 
 3A           !!FLAG!!        1721Z:  Intense clutter specks NW of radar cannot be removed.
 2A           !!FLAG!!        1806Z:  " "
 
                         
*******************************************************************************

03 Nov 98:    Isolated light to moderate showers persist through the early UTC hours.  This
              activity rapidly increases in coverage and intensity after 09Z, when many thin
              bands of moderate showers with embedded convective looking cells rotate into the
              radar FOV from the N and NE.  Widespread showers and convection covers mainly the
              Northern half of the scope in a broken pattern through the remainder of the day.
              Several showers bands propogate directly over the radar site.
              
              Data Analyzed:  0008-2355Z
              
              Satellite Coincidence:  0339Z(396 km), 1323Z(711 km)
              
              QC notes:  0008-2355Z:  Clutter specks contaminate the scope mainly North of the
                                      radar near the atoll edges. 
                              ---->   Partially Corrected - some clutter is embedded in precip and
                                      cannot be removed - see flags.
                                      
 2A,3A        !!FLAG!!   1529-1704Z:  Intense clutter specks embedded in precip North of the radar.
                                      Clutter cannot be removed without also removing precip echo.
                                      
 2A,3A        !!FLAG!!   1858-1954Z:  Intense clutter specks embedded in precip North of the radar.
 
 2A,3A        !!FLAG!!   2042-2119Z:  Intense clutter specks embedded in precip North of the radar.
     
              
                              1839Z:  Radial solar interference spike remnant (sunrise) E of radar
                              ---->   Corrected - spike removed
                              
*******************************************************************************

04 Nov 98:    A broken pattern of scattered light to moderate showers with embedded small intense
              convective cells blankets mainly the Northern half of the scope for the entire day. 
              Several thin convective lines move over and very near the radar site.  
              New scanning strategy implemented near 0630Z to avoid elevation and azimuth gear
              failure.
              
              Data Analyzed:  0014-2356Z
              
              Satellite Coincidence:  0402Z(453 km), 1347Z(120 km)
              
              QC notes:  
              
 3A           !!FLAG!!        0024Z:  Corrupt VOS - no reflectivity or velocity data
 
 2B,3B        !!FLAG!!   0128-0224Z:  Light second trip echo NE of radar near 100 km range could not
                                      be completely removed.  This is minor.
                                      A few light showers were removed in this qc step.
                                  *   SECOND TRIP RANGE ~ 100 km
 
                         0319-0733Z:  Moderate/intense clutter specks surrounding radar (some embedded
                                      in precip).
                              ---->   Partially Corrected - some clutter specks removed, but others
                                      are embedded in precip - see flags
                                      A few light showers were removed in this qc step.
                                      
 2A,3A        !!FLAG!!   0618-0641Z:  Clutter specks embedded in precip near radar.
                                      
                         0349-0541Z:  Light to moderate second trip echo W of radar near 100 km range.
                              ---->   Mostly Corrected - most second trip echo removed - see flag
                                      A few light showers were removed in this qc step.
                              
 1B           !!FLAG!!        0427Z:  Light second trip echo W of radar near 100 km range could not
                                      be removed because it is embedded in precip.
                                  *   SECOND TRIP RANGE ~ 100 km
                                      
                              0900Z:  Intense clutter speck N of radar along Atoll edge.
                              ---->   Corrected - speck removed
                              
                         1220-1940Z:  Light second trip echo surrounding radar near 100 km range
                              ---->   Partially Corrected - most spurious echo removed (see flags)
                              
 2B,3B        !!FLAG!!   1600-1940Z:  Light second trip echo remnants S of radar near 150 km range
                                      could not be removed without also removing real precip echo.
                                  *   SECOND TRIP RANGE ~ 150 km
                              
                              1300Z:  Intense clutter speck N of radar along Atoll edge.
                              ---->   Corrected - speck removed
                              
                              1430Z:  Moderate clutter speck N of radar along Atoll edge.
                              ---->   Corrected - speck removed
                              
                         1550-1830Z:  Moderate/intense clutter specks surrounding radar (some embedded
                                      in precip).
                              ---->   Partially Corrected - some clutter removed - see flags
                              
 2A,3A        !!FLAG!!   1550-1600Z:  Intense clutter specks embedded in precip near radar.
 3A           !!FLAG!!        1711Z:  Intense clutter specks embedded in precip near radar.
 3A           !!FLAG!!        1740Z:  Intense clutter specks embedded in precip near radar.
                                      
                              1840Z:  Solar spike remnant SE of radar at far range.
                              ---->   Corrected - spike removed
                              
                         2020-2356Z:  Moderate/intense clutter specks surrounding radar (some embedded
                                      in precip).
                              ---->   Partially Corrected - some specks removed - see flags
                                      A few light showers were removed during this qc process.
                              
 2A,3A        !!FLAG!!   2131-2230Z:  Intense clutter specks either embedded in precip or in close
                                      proximity to precip could not be removed.
                                      
                         2140-2345Z:  Light second trip echo W and SW of radar near 100 km
                              ---->   Mostly Corrected - most spurious echo removed - see flags
                                      A few light showers were removed during this qc process.
                                      
 2B           !!FLAG!!        2200Z:  Light second trip echo SW of radar near 100 km range could
                                      not be completely removed.
                                  *   SECOND TRIP RANGE ~ 100 km
                                      
 3B           !!FLAG!!        2240Z:  Light second trip echo SW of radar near 100 km range could
                                      not be completely removed.
                                  *   SECOND TRIP RANGE ~ 100 km
                                      
*******************************************************************************

05 Nov 98:    Scattered light to moderate showers and somewhat isolated convective cells push
              out of the radar FOV toward the SW during the 00 and 01Z hours.  No additional real 
              precip echo occurs until near 13Z, when numerous lines of showers and convection rotate
              into the radar FOV from the S and E.  This scattered activity covers the scope
              through the remainder of the day.  No widespread heavy precip in any particular location.
              
              Data Analyzed:  0006-2352Z
              
              Satellite Coincidence:  0250Z(201 km), 1235Z(527 km)
              
              QC notes:  0028-0256Z:  Scattered light/moderate second trip echo S of radar at
                                      far range.
                              ---->   Partially Corrected - most second trip echo removed (see flags)
                                      A few light showers were removed during this qc process.
                                      
 1B           !!FLAG!!   0153-0256Z:  Small patches of light to moderate second trip echo persist
                                      SSE of the radar at far range.  This spurious echo cannot be
                                      removed due to presence of real precip echo at same range.
                                  *   SECOND TRIP RANGE ~ 150 km
                                      
                         0111-0122Z:  Intense clutter speck NW of radar near Atoll edge.
                              ---->   Corrected - clutter speck removed
                         
                                      
                         0307-1201Z:  Widespread light/moderate second trip echo and CAE S of radar.
                                      Some intense clutter specks are also present.
                                      No real precip echo present during this time.
                              ---->   Corrected - all spurious echo removed.
                                      
                         1211-2352Z:  Scattered light/moderate second trip echo S/SW/SE of radar at
                                      far range with developing precip.  Solar interference
                                      spike E of radar (sunrise) at 1843Z.  Several time periods
                                      contain intense clutter specks near radar.
                              ---->   Partially Corrected - most spurious echo removed - see flags
                                      A few light showers were removed in this qc process
                              
 2B,3B        !!FLAG!!   1934-1954Z:  Second trip echo patches E of radar could not be completely removed
                                  *   SECOND TRIP RANGE ~ 100-150 km
 2A,3A        !!FLAG!!   1622-1642Z:  Intense clutter specks embedded in precip N of radar.
 2A,3A        !!FLAG!!   2211-2322Z:  Intense clutter specks embedded in precip N of radar.
 
*******************************************************************************

06 Nov 98:    Scattered light to moderate showers with embedded small convective cells are present
              throughout most of the day.  After 12Z, the activity increases in coverage and intensity,
              but still remains scattered.  Several thin convective lines develop and move directly over
              the radar site.  Near 1630Z, a thin intense convective line moves from E to W over the
              radar.  Unfortunately, there is a 3 hour data gap near this time.  When the data resumes
              (near 1940Z) continuous scattered showers and small intense convective cells cover the
              scope in an unorganized appearance through the end of the day.
              Lightning strike resulted in radar shutdown at 1630Z.
              
              Data Analyzed:  0002-1630Z
                              1941-2351Z
                              
              Satellite Coincidence:  0314Z(641 km), 1259Z(321 km)
              
              QC notes:  0002-2351Z:  Scattered light/mod second trip echo mainly S of radar throughout the
                                      entire day.  Occassional moderate/intense clutter specks (some embedded)
                                      are prevelant N of the radar along the Atoll edge.
                                      0620Z VOS contains solar spike remnant SW of radar (sunset).
                                      1641Z VOS is corrupt - no reflectivity data.  This occurs just before
                                      the 3 hour data gap.
                                      Entire day reprocessed with combination params to remove second trip
                                      and clutter.
                              ---->   Partially Corrected - most spurious echo removed - see flags
                                      A few light showers were removed in this qc process.
                                      
 3A           !!FLAG!!        0224Z:  Intense clutter speck embedded in precip along Atoll edge.
 2B,3B        !!FLAG!!   0244-0321Z:  Light second trip echo SW of radar could not be completely removed.
 2B,3B        !!FLAG!!   0700-1020Z:  Light/mod second trip echo E of radar could not be completely removed.
 2A,3A        !!FLAG!!   1541-1620Z:  Intense clutter specks embedded in precip along Atoll edge.
 3A           !!FLAG!!   1630-1641Z:  VOS corrupt - Reflectivity and velocity data partially missing from
                                      1630 VOS and completely missing from 1641Z VOS.
                                      These VOSs moved to bad_files directory.
 2A,3A        !!FLAG!!   2002-2043Z:  Intense clutter specks embedded in precip along Atoll edge.
                                  *   SECOND TRIP RANGE ~ 100-150 km
 
                                      
******************************************************************************* 

07 Nov 98:    A moderately active day at Kwajalein.  Scattered light to moderate showers with numerous
              embedded convective cells are present over the entire scope throughout the early part
              of the day (UTC).  After 08Z, precip increases in coverage and intensity primarily in
              the Southern half of the scope.  Several large convective clusters develop and move into
              the radar FOV and pass just to the south of the radar site, while only scattered light
              showers and isolated convective cells occur in the Northern half of the scope.  From
              15Z ~ 19Z, a large convective complex with a trailing stratiform rain area passes just 
              South of the radar.  After this system passes, only isolated light showers and
              a couple convective cells pass to the South while the day winds to a close.
              
              Data Analyzed:  0000-2351Z
              
              Satellite Coincidence:  0201 (2 km!), 1146Z(338 km)
              
              
              QC notes:  Due to widespread coverage of light/moderate second trip echo at mid/far
                         range together with scattered occurrences of intense clutter specks, the
                         entire day has been reprocessed with combination parameters.  It is much 
                         more efficient to reprocess the entire day instead of individual reprocessing
                         of many VOSs.
              
                         0000-0354Z:  Intense clutter specks mainly N of radar (some embedded in precip)
                                      Some light second trip echo is also present E of radar near 150 km 
                                      range from 0211-0241Z
                              ---->   Partially corrected - most second trip echo removed - see flags; 
                                      clutter specks embedded in precip - see flags below
                                      
 1B           !!FLAG!!        0211Z:  Small patch of second trip echo E of radar could not be removed
 3B           !!FLAG!!        0221Z:  Small patch of second trip echo E of radar could not be removed
                                  *   SECOND TRIP RANGE ~ 100-150 km
                                  
 1A           !!FLAG!!   0040-0231Z:  Intense clutter specks embedded in precip near radar.
 3A           !!FLAG!!        0322Z:  Intense clutter specks embedded in precip near radar.
 
              
                         0441-0451Z:  Intense clutter specks near radar.
                              ---->   Corrected - clutter specks removed
                         
                              0642Z:  Intense clutter specks near radar.
                              ---->   Corrected - clutter specks removed
                              
                         0752-2351Z:  Light/moderate second trip echo surrounding radar at mid-range combined
                                      with some intense clutter specks near radar at various times as noted
                                      below
                              ---->   Partially Corrected - some spurious echo removed.
                                      Some false echo could not be removed - see flags below
                                      
 2B,3B        !!FLAG!!   0822-0941Z:  Light second trip echo remains ESE of radar near 130 km range.
 2B,3B        !!FLAG!!   1751-1830Z:  Light second trip echo remains ESE of radar near 130 km range.
 2B           !!FLAG!!   2031-2051Z:  Light second trip echo remains W of radar near 130 km range.
                                  *   SECOND TRIP RANGE ~ 130 km
                              
                         0952-1021Z:  Intense clutter specks near radar.
                              ---->   Partially Corrected - most clutter specks removed - see flag
                              
 3A           !!FLAG!!        1021Z:  Intense clutter speck near radar could not be removed without also
                                      removing significant precip.
                         
 1A           !!FLAG!!        1121Z:  Intense clutter specks near radar could not be removed.
                              
                              1240Z:  Intense clutter specks near radar.
                              ---->   Corrected - specks removed
                              
 2A           !!FLAG!!        1600Z:  Intense clutter specks embedded in precip N of radar.
 
 3A           !!FLAG!!   1740-1751Z:  Intense clutter specks embedded in precip near radar 
                         
                              2000Z:  Moderate clutter speck NW of radar.
                              ---->   Corrected - speck removed
                              
                              2051Z:  Moderate clutter speck NW of radar.
                              ---->   Corrected - speck removed
                              
                              2131Z:  Moderate clutter speck NW of radar.
                              ---->   Corrected - speck removed
                              
                              2211Z:  Intense clutter specks near radar.
                              ---->   Corrected - speck removed
                              
                              2320Z:  Moderate clutter speck NW of radar.
                              ---->   Corrected - speck removed
                              
                              2351Z:  Intense clutter specks near radar.
                              ---->   Corrected - speck removed
              
    
******************************************************************************* 

08 Nov 98:    Scattered strong convection is present in the Southern half of the scope from
              00~05Z.  After 05Z, only scattered light showers persist through the 17Z hour.
              After 18Z, no precip echo is present until the very end of the day, when light
              showers poke into the radar scope from the south.  Overall, a very quiet day.
              
              Data Analyzed:  0000-2351Z
              
              Satellite Coincidence:  0049Z(675 km), 1210Z(516 km)
              
              QC notes:  0000-1020Z:  Light to moderate second trip echo together with light
                                      speck-like showers.  Solar interference spike (sunset)
                                      is present SW of radar at 0621Z.
                              ---->   Partially Corrected - some second trip echo was removed,
                                      but other spurious echo could not be completely removed
                                      due to moderate intensity and presence of real precip echo.
                                      Some light showers were removed during this qc process.
                                      (see flags)
                                      
 1B           !!FLAG!!   0000-0051Z:  Small patch of moderate second trip echo SW of radar
                                      could not be completely removed.
                                      
 2A,3A        !!FLAG!!   0251-0801Z:  Several significant patches of moderate second trip echo
                                      S,SE and W of the radar could not be completely removed due to
                                      presence of light showers.
                                      
 2B,3B        !!FLAG!!   0921-0951Z:  Patches of light second trip echo S and SW of radar could
                                      not be completely removed.
                                      
                                  *   ALL SECOND TRIP RANGE ~ 100-150 km
                                      
                         1030-1520Z:  Second trip echo remnants persist.  No significant precip echo.
                              ---->   Corrected - spurious echo removed
              
                         1701-2331Z:  Light to moderate second trip echo contaminates the scope.
                                      No real precip echo is present.
                              ---->   Corrected - spurious echo removed
                                      
******************************************************************************* 

09 Nov 98:    Showers and convective systems rapidly develop and push into the radar FOV after 02Z.
              The leading edge of this activity, which pushes over the radar site (near 0630Z), is denoted
              by a 30 dBZ band of showers with embedded convective cells.  The majority of the convective
              clusters and stratiform rains remain in the southern half of the scope, while only scattered
              (but intense) thin convective bands and cells pass North of the radar.  Several thin intense
              convective bands pass directly over the radar site (especially from 13-16Z), while what
              appears to be a large area of moderate (30+ dBZ) stratiform rain passes south of the radar
              between 100-150 km range.  Complex, dynamic interactions occur with converging convective
              lines and outflow boundaries.  By 18Z, most activity has exited the scope and only scattered
              to isolated small convective cells and light/moderate showers remain (in the southern half). 
              After 23Z, organized convective lines push into the southern half of the scope once again.
              This is a very active day at Kwajalein.
              
              Data Analyzed:  0001-2350Z
              
              Satellite Coincidence:  0113Z(187 km), 1057Z(148 km)
              
              QC notes:       0050Z:  Intense clutter speck NW of radar
                              ---->   Corrected - speck removed
              
                         0330-0400Z:  Light/moderate intensity second trip echo SE of radar at 100-120 km range.
                              ---->   Corrected - spurious echo removed
              
                              0620Z:  Solar interference spike SW of radar (sunset).
                              ---->   Corrected - spike removed
                              
                         0710-1811Z:  Widespread light to moderate second trip echo South of the radar
                                      at mid/far range.  Some of this spurious echo is embedded in precip
                                      and will prove difficult to remove.  Occassionally, intense clutter
                                      specks are also present near the radar.  Some of these specks are
                                      also embedded in precip and cannot be removed.
                              ---->   Partially Corrected - most spurious echo removed.
                                      Some second trip and clutter could not be completely removed (see flags)
                                      
 2A,3A        !!FLAG!!   0710-0731Z:  Intense clutter specks embedded in precip W of radar.
                                      
 1B,2A,3A     !!FLAG!!   0740-1430Z:  Significant patches of second trip echo could not be completely
                                      removed.  Spurious echo is located S,SE and SW of radar near 120 km range.
                                      At the time of the TRMM overpass, spurious echo was not a major problem,
                                      therefore the 1B flag.  Intense clutter specks are embedded in precip
                                      from 1330Z to 1430Z
                                      
 2A           !!FLAG!!        1531Z:  Moderate intensity second trip echo SW of radar near 100 km range
                                      could not be completely removed.
                                      
                                  *   ALL SECOND TRIP ECHO RANGE ~ 100-150 km
                                      
                              1841Z:  Light solar interference spike SE of radar (sunrise)
                              ---->   Corrected - spike removed
                              
 2A           !!FLAG!!        1931Z:  Intense clutter speck embedded in precip N of radar.
                              
                         2001-2350Z:  Intense clutter specks along Atoll edge N of radar.
                              ---->   Partially Corrected - see flags
                              
 2A           !!FLAG!!        2100Z:  Intense clutter specks embedded in light precip.
 3A           !!FLAG!!        2121Z:  Intense clutter specks embedded in light precip.
 
*******************************************************************************

10 Nov 98:    Widespread showers with embedded convective cells blankets the southern half of 
              the scope throughout most of the day.  A significant area of moderate (30+ dBZ) 
              rain with embedded convective cells passes south of the radar from 03Z-05Z.  Only
              a few light showers and isolated stronger cells are present north of the radar.
              Most activity pushes out of the radar scope or diminishes by 20Z.
              
              Data Analyzed: 0001-2350Z
              
              Satellite Coincidence:  0000Z(474 km), 1121Z(719 km)
              
              QC notes:  0031-0101Z:  Light second trip echo E of radar near 120 km range.
                              ---->   Corrected - spurious echo removed
              
                         0340-0520Z:  Moderate/intense clutter specks along Atoll edges.
                              ---->   Corrected - clutter removed
                                      A few light showers were removed during this qc process.
                         
                              0620Z:  Solar interference spike SW of radar near 120 km range.
                              ---->   Corrected - spike removed
              
                         0731-0750Z:  Intense clutter specks along Atoll edges (some embedded in precip).
                              ---->   Partially Corrected - some clutter specks removed (see flag)
                                      A few light showers were removed during this qc process.
                              
 3A           !!FLAG!!   0740-0750Z:  Intense clutter specks embedded in precip near radar.
                         
                         0830-0940Z:  Light/moderate second trip echo SW near 120 km range.
                              ---->   Corrected - spurious echo removed
                         
 2A,3A        !!FLAG!!   0901-1051Z:  Intense clutter specks along Atoll edges (embedded in precip)
                         
                         1021-1210Z:  Light/moderate second trip echo S/SW from 100-150 km range.
                              ---->   Mostly Corrected - most second trip removed (see flag)
                              
 2B           !!FLAG!!        1030Z:  Small patch of moderate second trip echo S near 150 km range.
                         
                         1210-1250Z:  Moderate/intense clutter specks along Atoll edges.
                              ---->   Mostly Corrected - most clutter specks (not directly over
                                      radar site) removed (see flag)
                                      
 3B           !!FLAG!!        1241Z:  Small moderate clutter speck W near 50 km range.
                         
                         1420-1551Z:  Light second trip echo S/SW/W near 150 km range.
                              ---->   Partially Corrected - some second trip echo removed (see flags)
                              
 2B           !!FLAG!!        1431Z:  Small patch of moderate second trip echo could not be
                                      completely removed
                                      
 2B,3B        !!FLAG!!   1530-1551Z:  Small patches of light second trip echo could not be
                                      completely removed.

                         1331-2230Z:  Occassional moderate/intense clutter specks along Atoll edges.
                                      Some specks are embedded in precip.  Also, significant patches
                                      of moderate second trip echo S/SW from 80-150 km range during
                                      the period 1800-2230Z.  It is extremely difficult to remove 
                                      spurious echo of this intensity without removing the real precip
                                      echo.  Some minor second trip echo is also present from 1331-1751Z.
                                      Light solar interference spike SE near 150 km range at 1840Z.
                              ---->   Partially Corrected - majority of spurious echo removed (see flags)
                                      Some light/moderate showers were removed in this qc reprocessing.
                                      This is the inevitable result of harsh qc parameters.  On the bright
                                      side, the majority of moderate second trip echo was masked.
                              
 2A,3A        !!FLAG!!   1420-1450Z:  Moderate/intense clutter specks could not be completely
                                      removed due to the presence of light precip.
                                      
 3B           !!FLAG!!   2011-2020Z:  Small patch of moderate second trip echo could not be completely
                                      removed.
                                      
                                  *   SECOND TRIP ECHO RANGE FOR ALL FLAGGED VOS's ~ 100-150 km
                                      
                         2241-2350Z:  False echo only.  No real precip echo is present.
                              ---->   Corrected - spurious echo removed
                                      
*******************************************************************************

11 Nov 98:    Scattered to isolated light showers dot the scope throughout the entire day.  A few
              stronger cells occassionally develop.  These stronger cells may or may not be convective
              in nature.  This is a very light precip day.
              
              Data Analyzed:  0001-2350Z
              
              Satellite Coincidence:  0024Z(380 km), 1009Z(46 km), 2312Z(276 km)
              
              QC notes:  0001-2350Z:  Clutter specks and second trip echo contaminate the scope
                                      with varying intensities throughout the entire day.  Unfortunately,
                                      the majority of precip on this day is light and spotty.  
                                      QC parameters designed to remove this spurious echo have been
                                      used at the expense of removing some light precip.  The purely
                                      subjective call on my part is that it is better to remove moderate/
                                      intense spurious echo, than to be overly concerned with removal
                                      of shallow light showers (10-15 dBZ).  Successful quality control
                                      is extremely difficult with this combination of spurious echo and
                                      light precip.
                              ---->   Most (not all) spurious echo removed entirely, or else removed within 
                                      130-150 km range.  Light speck showers were removed during this
                                      qc reprocessing.  Flags below represent times where clutter and
                                      second trip echo could not be completely removed (masked)
                                      
 2B,3B        !!FLAG!!   0311-0411Z:  Small patches of second trip echo remain S near 130-150 km range.
 2B,3B        !!FLAG!!   1500-2350Z:  Small patches of second trip echo remain S near 130-150 km range.
 
                                      Other patches of spurious echo are still present, but are too
                                      minor for flagging.

*******************************************************************************

12 Nov 98:    Scattered light to moderate small showers dot the scope periodically throughout the day.

              Data Analyzed:  0000-2350Z
              
              Satellite Coincidence:  0857Z(598 km), 2336Z(572 km)
              
              QC notes:  0000-2350Z:  Light showers removed by default QC params.  Unfortunately,
                                      this correction will reinstate some spurious echo.
                              ---->   light precip reinstated along with spurious echo.
                              
 2A           !!FLAG!!        0000Z:  Clutter specks NW reinstated with light precip
 3A           !!FLAG!!        0051Z:  Clutter specks NW reinstated with light precip
 3A           !!FLAG!!        0411Z:  Clutter specks NW reinstated with light precip
 2A,3A        !!FLAG!!   0650-0821Z:  Clutter specks embedded in precip near radar.
 2B,3B,3A     !!FLAG!!   1040-1300Z:  Light/moderate second trip echo S near 150 km range in addition
                                      to occassional clutter specks near radar.
 2B,3B,2A,3A  !!FLAG!!   1430-1841Z:  Combination of various spurious echo reinstated with light showers.
                                      False echo cannot be removed without also removing real echo.
 3A           !!FLAG!!        2210Z:  Clutter specks NW reinstated with light precip.
 
 
*******************************************************************************

13 Nov 98:    Scattered small light/moderate showers with occassional small convective cells cover
              the scope throughout most of the day.  No widespread organized heavy rain events.
              The intensity is stronger, and coverage of precip is more extensive than the previous two days.

              Data Analyzed:  0001-2350Z
              
              Satellite Coincidence:  0921Z(249 km), 2224Z(72 km)
              
              QC notes:  Second trip echo is not a major problem on this day!  Default QC params did an
                         excellent job in masking this spurious echo.  However, clutter problems
                         still exist.
                         
                              0110Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                         0201-0420Z:  Moderate/intense clutter specks near radar (some embedded in precip)
                              ---->   partially corrected - some specks removed 
                              
 2A           !!FLAG!!        0201Z:  Intense clutter embedded in precip near radar.
 2A,3A        !!FLAG!!   0241-0350Z:  Intense clutter embedded in precip near radar.
 
                         
                         0620-0901Z:  Moderate/intense clutter specks near radar (some embedded in precip).
                                      Also, some very light second trip close to radar.
                              ---->   most spurious echo removed.
                              
 2A,3A        !!FLAG!!   0620-0641Z:  Intense clutter embedded in precip near radar.
                                      
                              1221Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                              1300Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                              1410Z:  Intense clutter speck NW.
                              ---->   speck removed
                              
                              1500Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                              1611Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                              1651Z:  Moderate clutter speck NW.
                              ---->   speck removed
                              
                         1941-2010Z:  Intense clutter specks NW.
                              ---->   specks removed
                         
                              2111Z:  Intense clutter speck NW.
                              ---->   speck removed
                              
                              2251Z:  Intense clutter speck NW.
                              ---->   speck removed
                              
*******************************************************************************

14 Nov 98:    Scattered light to moderate showers are present mainly in the southern half
              of the scope from 00-08Z.  After 09Z, widespread shower activity develops
              quickly and also moves into the radar FOV from the East.  The showers are mainly
              light (<30 dBZ), but heavier more organized clusters of moderate rain with embedded
              convective cells are also present.  Most of the precip moves out of the radar FOV
              by 21Z, and isolated showers and small convective cells develop and move into view
              through the remaining hours.
              
              Data Analyzed:  0001-2350Z
              
              Satellite Coincidence:  0808Z(405 km), 2111Z(745 km)
              
              QC notes:       0121Z:  Moderate clutter speck NW
                              ---->   speck removed
               
                              0441Z:  Intense clutter speck NW
                              ---->   speck removed
                              
                              0930Z:  Intense clutter speck NW
                              ---->   speck removed
                              
                         0950-1451Z:  Light second trip echo near 150 km range; occassional
                                      clutter specks near radar
                              ---->   Most spurious echo removed.  Some small patches of minor
                                      second trip echo are still present near 150 km range, but
                                      it is too minor to flag.  Clutter specks were removed.
                                      
                         1610-2210Z:  Light second trip echo near 150 km range; occassional
                                      clutter specks near radar (some embedded)
                              ---->   Most spurious echo removed.   Some small patches of minor
                                      second trip echo are still present near 150 km range, but
                                      it is too minor to flag.  Some clutter specks are embedded
                                      in precip and cannot be removed (see flags).
                                      
 2A,3A        !!FLAG!!   1700-1840Z:  Intense clutter specks embedded in precip near radar.
 2A,3A        !!FLAG!!   1950-2021Z:  Intense clutter specks embedded in precip near radar.       
                                      
                                      
*******************************************************************************

15 Nov 98:    Scattered light/moderate showers with possible small embedded convective cells pass
              through the FOV during the entire day.  No significant or organized precipitation.
              
              Data Analyzed:  0001-2350Z
              
              Satellite Coincidence:  0832Z(447 km), 2135Z(119 km)
              
              QC notes:  0001-0151Z:  Light, spotty second trip echo S/E near 150 km range.
                              ---->   most spurious echo removed.
                              
 3B           !!FLAG!!        0121Z:  Light patch of second trip echo remains S near 150 km range.
              
                         0240-0540Z:  Intense clutter specks near radar (some embedded in precip);
                                      also, light second trip echo W at far range.
                              ---->   some spurious echo removed.
                              
 2A,3A        !!FLAG!!   0240-0350Z:  Intense clutter specks embedded in precip near radar.
                                      
                         0600-0630Z:  Intense clutter specks near radar, also a solar interference 
                                      spike remnant SW at far range at 0621Z
                              ---->   corrected - spurious echo removed
                                      
                         0810-0951Z:  Clutter specks near radar, also light patchy second trip echo
                                      N at far range.
                              ---->   corrected - spurious echo removed
                                      
                         1141-1430Z:  Light second trip echo at far range and varying directions.
                              ---->   corrected - spurious echo removed (except for a few very minor
                                      patches not worth flagging)
                         
                         1701-2350Z:  Light second trip echo SE at far range, and occassional clutter
                                      specks near radar.
                              ---->   partially corrected - most spurious echo removed
                              
 1B,2B,3B     !!FLAG!!   2151-2221Z:  Light second trip remants NE near 150 km range.
                         
*******************************************************************************                         

16 Nov 98:    Scattered light showers and occassional convective cells are present throughout
              the day.  There is no data available after 18Z due to pulse transformer failure.
              Corrupt VOSs 1801Z and 1811Z.
              
              Data Analyzed:  0000-1751Z
              
              Satellite Coincidence:  0720Z(220 km), 2022Z(551 km)
              
              QC notes:  0000-1751Z:  Light second trip echo and occassional clutter specks contaminate
                                      the scope throughout most of the day.
                              ---->   partially corrected - some spurious echo still remains (see flags)
              
 3A           !!FLAG!!        0151Z:  Intense clutter speck embedded in precip to North.
 
 2A           !!FLAG!!        0230Z:  Intense clutter specks in close proximity to precip North of radar.

 2B,3B        !!FLAG!!   0840-1040Z:  Scattered light second trip echo at far range to South
 
                                  *   SECOND TRIP RANGE 100~150 km
                                  
******************************************************************************* 

17 Nov 98:    Significant precip returns to Kwaj.  The day begins with widespread showers and
              convection pushing into the FOV from the E and S.  A band of light/mod showers with
              embedded strong cells pushes over the radar near 0130Z, and again near 0441Z.  
              Steadier, general rains tend to remain in the southern half of the scope while
              several lines of showers and scattered convection pass over the radar and to the North.
              Near 0610Z, a convective cluster with max echo intensity near 50 dBZ moves from E
              to W over the radar site and quickly loses intensity, while widespread convection
              passes from E to W near 100 km range N of the radar.  Scattered convective cells
              and light showers continue through the remainder of the day.  Near 23Z, a thin,
              intense line of convection (max echo near 50 dBZ) moves over the radar from the NE.
              Scattered activity begins to gel into a more impressive convective cluster to
              the West of the radar near the end of the day.
              
              Data Analyzed:  0040-0151Z
                              0350-2351Z
                              
              Satellite Coincidence:  0744Z(645 km), 2047Z(313 km)
              
              QC notes:  0040-2351Z:  Light to moderate second trip echo in various azimuths
                                      surrounding the radar.  Most second trip echo is near
                                      100 km range.  Also, occasional clutter specks are found
                                      near the radar.  Some specks are intense and embedded in
                                      precip.  See flags below.
                              ---->   Most spurious echo removed.  A few light showers were also
                                      removed as a result of this QC procedure.  Some 10 dBZ
                                      second trip echo near 150 km range was not completely
                                      removed, but it appears to be too minor for flagging.
                                      Intense clutter specks embedded in precip is problematic.
                                      
 2A,3A        !!FLAG!!   0640-0710Z:  Intense clutter specks embedded in precip near radar.
 
 2B,3B        !!FLAG!!   1341-1430Z:  Small patch of second trip echo SW could not be completely removed
                                  *   SECOND TRIP RANGE ~ 100 km
 
 2A,3A        !!FLAG!!   2130-2330Z:  Intense clutter specks embedded in precip near radar.
 

*******************************************************************************  

18 Nov 98:    Numerous isolated showers and shower clusters with embedded small convective cells pass
              through the radar FOV throughout the entire day.  Precip is mainly confined to the northern
              half of the scope from 00-19Z.  After 20Z, precip increases in coverage and intensity and 
              becomes E-W oriented near the center of the scope.
              
              Data Analyzed:  0000-2351Z
              
              Satellite Coincidence:  0631Z(21 km), 1934Z(344 km)
              
              QC notes:       0000Z:  Intense clutter specks extending out in a radial pattern to the NW. 
                                      Also, light to moderate second trip echo NE.
                              ---->   Corrected - spurious echo removed.
                              
                         0010-2351Z:  Scattered light to moderate second trip echo at varying ranges and
                                      intensities.  Also, clutter specks near the radar.  Some clutter is
                                      embedded in precip and cannot be removed.
                              ---->   Second trip echo removed.  Intense clutter is embedded in precip and
                                      could not be removed (see flags).  Some light (10 dBZ) real precip
                                      echo was removed during this QC process.  This was necessary to
                                      remove 20-30 dBZ second trip echo.
                                      
2A            !!FLAG!!        0830Z:  Intense clutter speck embedded in precip N.
2A,3A         !!FLAG!!   1100-1120Z:  Intense clutter specks embedded in precip N.
3A            !!FLAG!!        1411Z:  Intense clutter speck embedded in precip N.
3A            !!FLAG!!        1441Z:  Intense clutter specks embedded in precip N.
3A            !!FLAG!!        1610Z:  Intense clutter specks embedded in precip N.
3A            !!FLAG!!        2011Z:  Intense clutter specks embedded in precip N.
2A,3A         !!FLAG!!   2131-2331Z:  Intense clutter specks embedded in precip N.
                                      
                         2341-2351Z:  Reduced reflectivities probably due to solar calibration.
                         
*******************************************************************************               

19 Nov 98:    A large area of light to moderate showers with embedded convection is draped across 
              the center region of the scope as the day begins.  This activity moves E to W and
              dissipates by 07Z.  After 13Z, scattered showers and isolated convective cells
              quickly develop and push across the scope.  Near 16Z, a small convective cluster
              moves over the islands just North of Kwajalein. Scattered precip of varying intensity
              remains in the southern half of the scope through the remainder of the day.
              
              Data Analyzed:  0001-2121Z
                              2331-2351Z
                              
              Satellite Coincidence:  0519Z(662 km), 1958Z(505 km)
              
              QC notes:  0711-0811Z:  Light second trip echo to North at far range.
                              ---->   Most spurious echo removed (see flag)
                              
2A            !!FLAG!!        0800Z:  Small patch of 25-30 dBZ second trip N of radar could
                                      not be completely removed.
                                  *   SECOND TRIP RANGE ~ 150 km
              
                         1131-1251Z:  Light second trip echo to North at far range plus intense
                                      clutter specks near radar.
                              ---->   Most spurious echo removed.  Clutter specks removed although
                                      some second trip echo remains (see flags).
                                      
2B            !!FLAG!!        1201Z:  Small patch of 10 dBZ second trip echo N at far range.
3A            !!FLAG!!        1220Z:  Small patch of 10-30 dBZ second trip echo N at far range.
                                  *   SECOND TRIP RANGE ~ 140 km
                                      
                         1330-2351Z:  Light to moderate second trip echo at mid/far range mainly
                                      N and NW of radar, plus some close clutter specks.  Some
                                      clutter is embedded in precip and cannot be removed.
                              ---->   Partially corrected - some spurious echo could not be removed
                                      due to proximity to real echo (see flags).
                                
2B,3B         !!FLAG!!   1420-1510Z:  Light (10 dBZ) second trip echo to North at far range could
                                      not be completely removed due to presence of precip.
                                  *   SECOND TRIP RANGE ~ 140 km
                                      
2A,3A         !!FLAG!!   1520-1530Z:  Intense clutter specks embedded in precip near radar.

3A            !!FLAG!!        1620Z:  Small patch of 30 dBZ second trip NW near 100 km range.
                                  *   SECOND TRIP RANGE ~ 100 km

3A            !!FLAG!!        1651Z:  Patch of 10-30 dBZ second trip NW near 100 km range.
                                  *   SECOND TRIP RANGE ~ 100 km

2B,3B         !!FLAG!!   1740-1911Z:  Small patches of 10 dBZ second trip embedded in precip to NW.
                                  *   SECOND TRIP RANGE ~ 140 km

2A,3A         !!FLAG!!   1820-1911Z:  Intense clutter specks embedded in precip near radar. Also,
                                      minor patch of second trip to NW at 1900Z.
                                      
1A,2A,3A      !!FLAG!!   1940-2121Z:  Small patches of 10-30 dBZ second trip echo (partially
                                      embedded in precip) to NW at mid/far range.
                                  *   SECOND TRIP RANGE ~ 100-150 km
                                      
                                                                            
*******************************************************************************               
20 Nov 1998:  Widespread light to moderate showers with embedded convection dominates in the
              southern half of the scope for the majority of the day.  Only limited data is
              available on this day.  The northern half of the scope contains only isolated
              showers and very small convective cells.  A small area of convection moves from
              E to W over the radar location near 08:30Z.  All significant echoes remain to
              the South of the radar.  The usual problems of second trip echo, land clutter, and
              sea clutter are present in the raw DZ field.
              
              Data Analyzed:  0001-1220Z
                              2001-2352Z
                              
              Satellite Coincidence:  0543Z(176 km), 1846Z(146 km)
              
              QC notes:       0001Z:  Light second trip echo NW near 100 km range.
                              ---->   Corrected
              
                         0031-0040Z:  30 dBZ second trip echo to W near 100 km range.
                              ---->   Corrected (small core removed at far range to S.)
                         
                         0321-0400Z:  Light second trip echo W and NW at far range.
                              ---->   Corrected
                         
 2A, 3A       !!FLAG!!   0330-0351Z:  Intense, but small clutter specks to N.  Specks are
                                      embedded in light showers and cannot be removed without
                                      also removing significant precip.                                                                                                                              
                         
                         0730-1050Z:  Light to moderate second trip echo SE at far range,
                                      also W at far range.  Some embedded intense clutter specks
                                      contaminate the data within 50 km.
                              ---->   Partially corrected - second trip echo removed at the expense
                                      of a few light 10 dBZ showers.  This is an acceptable tradeoff.
                                      Embedded clutter specks cannot be removed - see flags.
                                      
 2A,3A        !!FLAG!!   0830-0851Z:  Clutter specks embedded in narrow band of precip within 50
                                      km of radar.
                                      
 2A           !!FLAG!!        0930Z:  Intense clutter specks embedded in light reflectivity NW of radar.
                                      
 3A           !!FLAG!!        1220Z:  Small patch of light second trip echo W near 125 km range, and
                                      moderate patch S at far range.  
                              ---->   Partially corrected - light second trip partially removed, but
                                      moderte intensity patch cannot be removed without removing 
                                      significant precip.
                              
                         2001-2352Z:  Small patches of light to moderate second trip echo S/SE/SW
                                      of radar near 100-150 km range.
                              ---->   Mostly corrected - a few very minor patches of second trip echo
                                      remain and cannot be removed without removing significant precip.
                                      see flags below
                                      
 2B,3A,3B     !!FLAG!!   2052-2113Z:  Second trip echo of varying intensities to SW could not be removed.
                                      
                                      
                                      
 3A           !!FLAG!!        2144Z:  Instense clutter speck in light showers to N of radar.  This speck
                                      cannot be removed without removing precip.
                                      
                                  *   ALL SECOND TRIP RANGE ~ 100-150 km
                         
                         
******************************************************************************* 

21 Nov 98:  Oranized bands of showers and convection pass through the southern half of the scope
            for a large portion of the day (00-20Z), while scattered showers and isolated convective
            cells are found in the northern half.  A thin band of ~30 dBZ showers pass over the radar
            site near 2120Z.  Widely scattered showers and small convective cells continue through
            the end of the day.  A larger convective cell enters into the radar FOV (to the NE) near
            2351Z.  Raw data is excessively contaminated with second trip echo.  This may be a good
            test day for algorithm testing.
            
            Data Analyzed:  0001-2351Z
            
            Satellite Coincidence:  0430Z(477 km), 1910Z(687 km)
            
            QC notes:    0001-2150Z:  Moderate second trip echo contamination especially
                                      South of the radar.
                              ---->   Partially Corrected - most second trip removed, however
                                      significant patches still remain embedded in precip - see flag
                                      
 1A,2A,3A,2B,3B
              !!FLAG!!   0001-1540Z:  Second trip echo embedded in precip - cannot be removed
                                      
                              0731Z:  Clutter speck to NW near 20 km range.
                              ---->   Corrected
                              
                         1430-1510Z:  Clutter specks near radar (some embedded in precip) 
                              ---->   Partially corrected - see flag
                              
 2A,3A        !!FLAG!!   1500-1510Z:  Clutter specks embedded in precip near radar. 
 
                                  *   ALL SECOND TRIP RANGE ~100-150 km

******************************************************************************* 

22 Nov 98:    Widespread precipitation occurs throughout the entire day.  A few isolated
              cells are present in the early part of the day (UTC), but the activity rapidly
              increases in coverage.  Many thin bands of showers with embedded convective
              cells move from E to W across the scope and pass over the radar location.
              Most bands are oriented N-S or NW-SE.  The bands appear to increase in
              coverage and merge together just West of the radar near 1940Z.  Additional
              scattered cells develop rapidly develop and continue through the end of the day.
              Good TRMM overpass (42 km) near 1757Z.
              
              Data Analyzed:  0001-2351Z
              
              Satellite Coincidence:  0454Z(359 km), 1757Z(42 km)
              
              QC notes:  0411-0600Z:  Intense clutter specks (some embedded) near radar.
                              ---->   Partially Corrected - embedded clutter specks and
                                      those very close to precip cannot be removed - see flags
                                      
 3A           !!FLAG!!        0411Z:  Intense embedded clutter specks cannot be removed
 1A,2A        !!FLAG!!   0430-0450Z:  Intense embedded clutter specks cannot be removed
 3A           !!FLAG!!        0540Z:  Intense embedded clutter specks cannot be removed
              
                         0720-0801Z:  Small patch of minor second trip echo to S at far range.
                              ---->   Corrected - second trip echo removed along with a few very
                                      light (10 dBZ) real echoes N of radar.
              
 2A,3A        !!FLAG!!   0910-0941Z:  Intense clutter specks (some embedded) near radar.
                              ---->   Clutter specks could not be removed due to proximity of precip.
                         
                         1051-2351Z:  Small patches of light to moderate second trip echo
                                      are present mainly to S and W.
                              ---->   Partially Corrected - removed most second trip.  Some spurious
                                      echo could not be removed without also removing cores of
                                      significant precip - see flags.
                                      
                                      
 2B,3B        !!FLAG!!   1131-1231Z:  10 dBZ second trip echo could not be completely removed.
 3B           !!FLAG!!        1910Z:  Small patch of 25 dBZ second trip echo S of radar.
                         
                         1340-1920Z:  Intense clutter specks (some embedded) near radar.
                              ---->   Partially Corrected - embedded clutter could not be removed
                                      see flags
                                      
 2A,3A        !!FLAG!!   1340-1511Z:  Intense clutter specks embedded in precip near radar.
                                      Also, some minor second trip echo S of radar at far range.
                                      
 2A,3A        !!FLAG!!   1610-1651Z:  Intense clutter specks embedded in precip near radar.
 1A,2A,3A     !!FLAG!!   1750-1831Z:  Intense clutter specks embedded in precip near radar.
                         
                              2121Z:  Moderate clutter speck N of radar
                              ---->   Corrected
                              
                              2311Z:  Moderate clutter speck NW of radar
                              ---->   Corrected

*******************************************************************************

23 Nov 98:    Widespread showers and convection are present throughout the entire day.
              Early in the day, a band of showers with ~50 dBZ embedded cells is oriented
              NW to SE and is located to the SW of the radar.  Additional N-S oriented bands
              with 30-50 dBZ intensities rapidly develop and move from E to W.  A long NS band
              with convective cells passes over the radar near 04Z.  Activity then becomes more
              scattered in converage until after 09Z when thin convective lines rapidly develop
              and move into the radar FOV from the West.  Several lines move over the radar
              location.   Toward the end of the day (Noon local time), widespread activity
              remains in the northern half of the scope, and dissipates in the southern half
              of the scope.  Siginficant second trip echo contamination.  Some velocity folding
              is present near 07Z.
              
              Data analyzed:  0000-2354Z
              
              Satellite Coincidence:  0342Z(292 km), 1645Z(623 km)
              
              QC notes:  0000-2354Z:  Light to moderate second trip echo contaimination for
                                      the majority of the day.  Entire day will be reprocessed
                                      for second trip and clutter.
                              ---->   Partially Corrected - the flags below represent times where
                                      second trip echo could not be removed without also removing
                                      significant precip.  Some light 10 dBZ showers were removed
                                      during the QC process.
                              
 2B,3B        !!FLAG!!   0121-0140Z:  Minor second trip echo to W at far range.
 2A,3A,3B     !!FLAG!!   1441-1541Z:  Light to moderate second trip echo to SW at far range.
 1A,2A,3A,3B  !!FLAG!!   1630-1751Z:  Light to moderate second trip echo to SW at far range.
                                  *   SECOND TRIP RANGE ~ 100-150 kmq
 
 
              
 2A,3A        !!FLAG!!   0000-0111Z:  Intense clutter specks near radar (some embedded in precip)
                              ---->   Clutter cannot be removed without removing significant precip.
              
 1A           !!FLAG!!        0401Z:  Intense clutter along atoll edge just ahead of convective line.
                              ---->   Clutter cannot be removed without removing significant precip.
                              
 1A,2A,3A     !!FLAG!!   0410-0440Z:  Intense clutter specks embedded in precip near radar.
 
 2A,3A        !!FLAG!!   0520-0541Z:  Intense clutter specks embedded in precip near radar.
 
                         0620-0710Z:  Intense clutter specks near radar (some embedded in precip)
                              ---->   Partially corrected - see flag
                              
 2A,3A        !!FLAG!!   0700-0710Z:  Intense clutter specks embedded in precip near radar.
                         
 2A,3A        !!FLAG!!   0721-0820Z:  Intense clutter specks embedded in precip near radar.
 
                              0831Z:  Intense clutter speck to NW.
                              ---->   Corrected
                              
                         1100-1220Z:  Intense clutter specks near radar (some embedded in precip)
                              ---->   Partially corrected - see flags
                              
 2A,3A        !!FLAG!!   1100-1151Z:  Intense clutter specks embedded in precip near radar.
                         
 2A,3A        !!FLAG!!   1310-1350Z:  Intense clutter specks near radar (some embedded in precip)
                         
 3A           !!FLAG!!        1441Z:  Intense clutter speck to NW cannot be removed due to proximity
                                      of precip.
                              
 3A           !!FLAG!!        1950Z:  Intense clutter specks to NW embedded in light shower.
                              
                         2040-2354Z:  Intense clutter specks (some embedded in precip) along atoll edge.
                              ---->   Partially Corrected - see flags
                              
 3A           !!FLAG!!        2059Z:  Intense clutter specks embedded in precip
 3A           !!FLAG!!        2128Z:  Intense clutter specks embedded in precip
 2A,3A        !!FLAG!!   2227-2325Z:  Intense clutter specks embedded in precip
                        
                        
*******************************************************************************
24 Nov 98:    Widespread convection and showers slowly dissipate and move out of the
              radar FOV from 00Z to 06Z.  Beginning near 07Z, intense organized bands
              of convection and showers develop over the entire scope.  The heaviest
              precip appears to be centered in the middle of the scope and over the
              radar location.  This activity continues through the end of the day.  
              Near the end of the day, and intense V shaped bow echo squall line
              with trailing stratiform rain develops to the East of the radar.
              Maximum reflectivity in this line approaches 45-50 dBZ.
              
              Data Analyzed:  0004-2350Z
              
              Satellite Coincidence:  0406Z(570 km), 1709Z(240 km)
              
              QC notes:       
 2A           !!FLAG!!        0004Z:  Intense clutter speck embedded in precip near radar.
              
                              0101Z:  Light second trip echo NE at far range.
                              ---->   Corrected - second trip removed
              
 2A           !!FLAG!!        0130Z:  Intense clutter speck E of radar at mid-range.
                                      Speck could not be removed due to proximity to real
                                      precip echo.
                              
                              0150Z:  Intense clutter speck N of radar near 15 km range.
                                      Light second trip echo NE at far range.
                              ---->   Corrected
                                      
                              0200Z:  Light second trip echo NE at far range.
                              ---->   Corrected - second trip removed (along with a few
                                      light showers).
                                      
                              
                         0230-0311Z:  Small light patches of second trip N and NE at far range.
                              ---->   Corrected - most second trip echo removed (along with
                                      a few light showers).
                              
                              0450Z:  Intense clutter speck N of radar near 15 km range.
                              ---->   Corrected - speck removed
                              
 2A           !!FLAG!!        0531Z:  Intense clutter specks N of radar near 15 km range.
                              ---->   Clutter could not be removed due to proximity of real
                                      precip echo.
                              
                              0620Z:  Solar interference spike SW (sunset)
                              ---->   Corrected - spike removed
                              
                              0810Z:  Light clutter speck N of radar near 15 km range.
                              ---->   Corrected - speck removed
                              
                         0851-0900Z:  Intense clutter specks N of radar near 15 km range.
                              ---->   Partially corrected - speck removed from 0900Z VOS
                              
 3A           !!FLAG!!        0851Z:  Intense clutter speck N of radar could not be removed
                                      due to proximity of light shower.
                         
                         0951-1501Z:  Small patches of light/moderate second trip S and SE
                                      at far range.
                              ---->   Partially Corrected - most second trip echo removed
                                      (at the expense of a few light showers) - see flag
                                      
 3A           !!FLAG!!        1210Z:  Small patch of moderate second trip echo SE at far range
                                      could not be removed.
                         
 3A           !!FLAG!!        1251Z:  Intense clutter speck N of radar near 15 km range embedded
                                      in light precip.
                              
 2A,3A        !!FLAG!!   1321-1400Z:  Intense clutter specks N of radar near 15 km range.
                                      Most specks are embedded in precip.
                                      
 1A,2A,3A     !!FLAG!!   1610-1701Z:  Intense clutter specks N of radar near 15 km range.
                              ---->   Specks are embedded in precip and in close proximity
                                      to precip and cannot be removed without removing
                                      significant real precip echo.
                                      
                         1741-2031Z:  Small patches of light/moderate second trip S and SE
                                      at far range.
                              ---->   Partially corrected - most second trip echo removed
                                      -see flags
                                      
 3B           !!FLAG!!        1851Z:  Small patch of solar interference SE at far range
                                      could not be completely removed.
                                      
 2A,3A        !!FLAG!!   2000-2031Z:  Small patches of moderate (30 dBZ) second trip echo
                                      cannot be removed without also removing significant real
                                      precip echo.  Spurious echo located SE at mid-range.
                                      
 3A           !!FLAG!!        2021Z:  Intense clutter specks N of radar near 15 km range
                                      embedded in precip.
                                      
 2A           !!FLAG!!        2101Z:  Corrupt volume scan - placed in "bad scans" directory
 
 2A,3A        !!FLAG!!   2130-2350Z:  Intense clutter specks along atoll edge embedded in
                                      precip near radar
                                      
*******************************************************************************

25 Nov 98:    A very complex weather day at Kwajalein!!!
              The ITCZ appears to be located over Kwaj resulting in complex echo
              patterns for the majority of the day.  From 00 to 06Z, several bands
              of showers and convection race from E to W across the scope, while
              lighter bands of showers move from S to N.  After 06Z, a large area of
              stratiform rain moves from S to N over the radar, (slight rotation in this
              field can be detected), while intense convective cells develop in the
              northern half of the scope.  The cells move basically E to W while the
              stratiform region of rain pushes up from the south and converges with them.
              By 1940Z, the widespread rain moves to the N and W out of the radar scope
              while intense convective cells begin to develop in the southern half of
              the scope.  These cells remain somewhat stationary and slowly diminish
              in coverage and intensity.  Most echos diminish by 23Z, with only
              a few small 10-15 dBZ cells present.  Ray dropouts are located at various
              azimuths throughout the day.
              
              Data Analyzed:  0001-2351Z
              
              Satellite Coincidence:  0253Z(97 km), 1556Z(423 km)
              
              QC notes:  0010-0700Z:  Light to moderate second trip echo E, S, and W
                                      at far range.
                              ---->   Partially Corrected - most second trip removed!
                                      Minor second trip could not be removed due to
                                      the presence of light precip - see flag.
                                      
 3B           !!FLAG!!        0110Z:  Light second trip echo E at far range.
                                      
                         1100-1300Z:  Light second trip echo to SW at far range.
                              ---->   Corrected - second trip echo removed.      
              
 3A           !!FLAG!!        0051Z:  Intense clutter specks to N near 30 km range could not
                                      be removed due to proximity of real precip echo.
                              
 1A,2A,3A     !!FLAG!!   0101-0241Z:  Intense clutter specks embedded in precip near radar.
 
 1A           !!FLAG!!        0320Z:  Intense clutter speck W of radar at close range embedded
                                      in light precip echo.
                              
                              0400Z:  Intense clutter speck N of radar at close range.
                              ---->   Corrected - speck removed
                              
                              0511Z:  Intense clutter speck W of radar at close range.
                              ---->   Corrected - speck removed
                              
 2A,3A        !!FLAG!!   0800-0930Z:  Intense clutter specks embedded in precip near radar.
 
                              1030Z:  Intense clutter specks N of radar at close range
                              ---->   Corrected - specks removed
                              
 2A           !!FLAG!!        1131Z:  Intense clutter speck N of radar at close range could not
                                      be removed due to proximity of real precip echo.
                              
 1A,2A,3A     !!FLAG!!   1140-1721Z:  Intense clutter specks embedded in precip near radar.
 
 2A,3A        !!FLAG!!   1830-1841Z:  Moderate clutter specks N of radar near 15 and 30 km range.
                                      Due to proximity of precip echo, clutter cannot be removed.
                         
                              1850Z:  Solar interference spike SE at mid/far range.
                              ---->   Corrected - spike removed.
                              
 2A,3A        !!FLAG!!   1850-1910Z:  Intense clutter specks embedded in precip near radar.
 
 2A,3A        !!FLAG!!   2141-2211Z:  Intense clutter specks embedded in precip near radar.
 
 *******************************************************************************
 
26 Nov 98:    Another complex weather day at KWAJ influenced by ITCZ interactions.
              Thin lines of showers with embedded small convective cells push into
              the radar scope from the south and north.  Several E-W oriented lines
              of showers and convection develop to the south of the radar due to the
              converging flow.  These lines begin forming near 01Z, then dissipate and
              reform through 14Z.  After 14Z and continuing through 23Z, most of the
              activity is contained in the western half of the scope.  A large convective
              cell (stationary) is located to the SW near 140 km range, while several
              bands of showers push into the scope from the NW.  Small convective cells
              and 30 dBZ showers develop to the W and NW at mid and far range from
              18Z through 23Z.  These cells and showers remain mostly stationary and
              appear to build to the NW.
              
              Data Analyzed:  0000-2240Z
              
              Satellite Coincidence:  0141Z(737 km), 1620Z(426 km)
              
              QC notes:  0000-2240Z:  Light showers removed by default params.  This problem
                                      takes precendence over others.
                              ---->   Corrected - parameters adjusted - some light
                                      showers reinstated, but others not due to compromise
                                      with supressing second trip echo.
              
                         0000-1420Z:  Mainly light clutter specks to N near 15 km range.
                              ---->   Most of these clutter specks are very light 
                                      10 dBZ or less and therefore these volume scans
                                      are not flagged.  In order to reinstate light showers,
                                      the height parameters were lowered.  Because of this,
                                      clutter specks cannot be completely removed.
                                      Several scans have more pronounced specks and are 
                                      flagged below.
                               
 3B           !!FLAG!!        1310Z:  Minor clutter speck near radar could not be removed.
 
 2A           !!FLAG!!        1331Z:  Intense clutter speck near radar could not be removed.
 
 3A           !!FLAG!!        1350Z:  Intense clutter speck near radar could not be removed.
 
 3B           !!FLAG!!        1420Z:  Minor clutter speck near radar could not be removed.
 
 2B,3B        !!FLAG!!   1321-1511Z:  Small patches of light to moderate second trip echo to W
                                      near 100-150 km range (< 25 dBZ) could not be completely
                                      removed due to reinstatement of light showers
                                      
 1B,2B,3B     !!FLAG!!   1530-1601Z:  Small patches of light to moderate (<25 dBZ) second trip echo to
                                      N near 100-150 km range could not be completely removed due to
                                      reinstatement of light showers.     
              
                         1810-2121Z:  Mainly light to moderate clutter specks to N near
                                      15 km range (a few intense specks)
                              ---->   Most of these clutter specks are very light 
                                      10 dBZ or less and therefore these volume scans
                                      are not flagged.  In order to reinstate light showers,
                                      the height parameters were lowered.  Because of this,
                                      clutter specks cannot be completely removed.  One VOS
                                      has an intense clutter speck and is flagged below.
                                      
 2A           !!FLAG!!        1931Z:  Intense clutter speck near radar could not be removed.
                                      
                              1850Z:  Solar interference spike to SE
                              ---->   Corrected -spike removed (at the expense of a few light
                                      showers)

*******************************************************************************

27 Nov 98:    A band of showers and convection remains somewhat stationary to the NW at
              far range through the 12Z hour.  Very little additional activity is present on
              the scope until after 12Z when some scattered light to moderate showers develop
              to the North.  Light to moderate showers (up to 25-30 dBZ) attempt to push
              into the scope from the NW from 14Z to 18Z, and quickly dissipate.  Isolated
              to scattered showers and small convective cells continue to develop and
              dissipate to the N through the 23Z hour.  An area of light showers pushes
              into the radar FOV from the SE after 21Z and advances to the West
              through 23Z.

              Data Analyzed:  0040Z
                              0110-0140Z
                              0300-2350Z

              Satellite Coincidence:  0204Z(92 km), 1507Z(233 km)

              QC notes:  0040-0711Z:  Light to moderate second trip echo to N at mid-range.
                              ---->   Partially corrected - most second trip echo removed.
                                      Most of this period is flagged due to stubborn blocks
                                      of second trip - see flags below.

 1B,2B,3B     !!FLAG!!   0040-0510Z:  Stubborn patches of second trip echo < 25 dBZ cannot
                                      be removed.

 2A,3A        !!FLAG!!   0520-0650Z:  Moderate (25-30 dBZ) second trip echo cannot be removed.
       
 3B           !!FLAG!!        0640Z:  Moderate clutter speck to N near 15 km range.

                              0851Z:  Small patch of light second trip echo to N at mid-range.
                              ---->   Corrected - second trip removed

                              1000Z:  Small patch of moderate second trip echo to N at close range.
                              ---->   Corrected - second trip removed at the expense of a few
                                      light showers.

 3A           !!FLAG!!        1020Z:  Moderate to intense clutter specks to NW at far range.
                                      Clutter is in very close proximity to light precip and
                                      cannot be removed without also removing the real echo.
                                      
 1B,2B,3B     !!FLAG!!   1050-1620Z:  Light to moderate second trip echo SE at far range
                                      Also, small patch of moderate second trip to N at close range
                                      at 1050Z
                              ---->   Second trip echo could only be partially removed during this
                                      entire period due to presence of real precip echo.  Spurious
                                      echo is <= 25 dBZ.

                         1700-2040Z:  Small patches of 25 dBZ+ second trip echo W at far range.
                              ---->   Partially corrected - see flags

 3A           !!FLAG!!        1751Z:  Small patch of 30 dBZ second trip echo W of radar could not
                                      be completely removed due to presence of light showers.

 2A           !!FLAG!!        1830Z:  Small patch of 30 dBZ second trip echo W of radar could not
                                      be completely removed due to presence of light showers.

 2A           !!FLAG!!        1900Z:  Small patch of 30 dBZ second trip echo W of radar could not
                                      be completely removed due to presence of light showers.

 2B,3B        !!FLAG!!   1910-2030Z:  Small patches of second trip (<= 25 dBZ) W of radar could not
                                      be completely removed due to presence of light showers.

                              1851Z:  Solar interference spike remnant to SE and moderate
                                      second trip echo to W.
                              ---->   Corrected - spike and second trip removed

                         2140-2350Z:  Light showers removed by default QC parameters to E
                                      and SE at far range.
                              ---->   Corrected - light showers reinstated
                                      some clutter also reinstated - see flags

 3A           !!FLAG!!        2210Z:  Intense clutter speck to NW at far range could not
                                      be removed.

 2A           !!FLAG!!        2300Z:  Intense clutter speck to NW at far range could not
                                      be removed.
              

*******************************************************************************

28 Nov 98:    Scattered small showers with potentially very small embedded convective
              cells develop and dissipate throughout the entire day.  From 00-13Z,
              a few thin lines and small clusters develop and quickly dissipate as
              they move from E to W.  After 17Z, most activity is in the Western half
              of the scope, but then spreads over the entire scope as the day ends.

              Data Analyzed:  0000-2350Z

              Satellite Coincidence:  0052Z(558 km), 1531Z(611 km)

              QC notes:  0000-0520Z:  Light showers removed by default QC params
                              ---->   Corrected - showers reinstated.
                                      Unfortunately, clutter was also reinstated - see flags

 1A,2A        !!FLAG!!   0051-0110Z:  Moderate/intense clutter specks to W and NW
                                      reinstated with light precip.
 3B           !!FLAG!!        0441Z:  Moderate clutter speck to NW at far range
                                      reinstated with light precip.
 3A           !!FLAG!!        0511Z:  Intense clutter speck to E at mid-range
                                      reinstated with light precip.
 3B           !!FLAG!!        0520Z:  25 dBZ second trip echo reinstated with
                                      light showers

                         1000-1050Z:  Light showers removed by default QC params  
                              ---->   Corrected - showers reinstated
                                      clutter was also reinstated - see flag

 3A,3B        !!FLAG!!   1041-1050Z:  Moderate (1041Z) and intense (1050Z) clutter specks
                                      reinstated with light precip 

 2A           !!FLAG!!        1100Z:  Intense clutter specks embedded in precip to North.

                              1111Z:  Moderate clutter speck to North at close range
                              ---->   Corrected - speck removed

                         1210-1541Z:  Moderate to intense clutter specks surrounding
                                      radar - some specks embedded in precip.
                              ---->   Partially corrected - some specks could not be
                                      removed due to proximity to real precip - see flags

 3A           !!FLAG!!   1310-1320Z:  Intense clutter specks near radar could not be removed.
 3A           !!FLAG!!        1420Z:  Intense clutter speck W of radar could not be removed.
 1A           !!FLAG!!        1500Z:  Intense clutter specks near radar could not be removed.
 1A           !!FLAG!!        1541Z:  Intense clutter specks near radar could not be removed. 


                         1820-2100Z:  Light to moderate second trip echo to SW at mid/
                                      far range.  Also, some showers removed by default
                                      QC params.  The showers removed are very light
                                      while the second trip is much more pronounced.
                              ---->   Partially Corrected - some spurious echo was completely
                                      removed while other patches were reduced in size.

 2B,3B        !!FLAG!!   1910-2100Z:  Small patches of second trip echo (<25 dBZ) could not
                                      be completely removed without also removing significant
                                      real precip echo.

                              1850Z:  Intense clutter speck to N, solar interference
                                      spike remnant to SE, second trip echo to SW
                              ---->   Corrected

 3A           !!FLAG!!        2020Z:  Intense clutter speck to N. embedded in light shower

 3A           !!FLAG!!        2050Z:  Intense clutter speck to N. embedded in light shower

                              2100Z:  Moderate clutter speck to West at close range
                              ---->   Corrected - speck removed

 2B,3B        !!FLAG!!   2111-2350Z:  Light showers removed by default QC params.
                                      Also, minor second trip echo remnants are present to
                                      SE and SW at far range.  In this case, the removal
                                      of showers takes precendence.
                              ---->   Corrected - showers reinstated
                                      This period must be flagged for second trip.

 2A,3A        !!FLAG!!   2221-2331Z:  Moderate to intense clutter specks are present 
                                      North of the radar at close range.  Some specks
                                      are embedded in precip.  Specks are mainly located
                                      along atoll edge.
*******************************************************************************
29 Nov 98:    Numerous, unorganized, moderate to intense convective cells and
              light showers cover the scope for most of the day.  Activity begins
              to increase in coverage and intensity in the southern half of the
              scope near 12Z.  After 22Z, a mesoscale system begins to push into
              the radar FOV from the south.  This system appears to intensify
              through the end of the day.  Widespread second trip echo contamination
              is present to the south as the majority of the mesoscale system
              appears to be just beyond radar range.

              Data Analyzed:  0000-2351Z
     
              Satellite Coincidence:  0116Z(290 km), 1419Z(32 km)

              QC notes:  0000-0350Z:  Light showers removed by default QC params
                              ---->   Corrected - light showers reinstaed, however,
                                      clutter specks and second trip echo also
                                      reinstated - see flags.

 1A,2A,3A     !!FLAG!!   0000-0120Z:  Intense clutter specks reinstated with showers
                                      near radar.  Moderate 2nd trip echo also
                                      reinstated.
 2B,3B        !!FLAG!!   0310-0350Z:  Light 2nd trip echo (10-15 dBZ) to SW was
                                      reinstated with light showers.

                         0441-0610Z:  Light to moderate second trip echo to SW
                                      at far range.
                              ---->   Partially Corrected - some 2nd trip removed
                                      see flags

 2A           !!FLAG!!        0500Z:  Moderate (30 dBZ) 2nd trip could not be
                                      completely removed due to presence of showers.
 3A           !!FLAG!!        0511Z:  Intense clutter speck to NW near 15 km range could
                                      not be removed due to presence of light shower
                                      near radar (2nd trip was removed)
 3A           !!FLAG!!        0520Z:  Moderate (30 dBZ) 2nd trip could not be
                                      completely removed due to presence of showers.

                         0850-1440Z:  Light second trip echo to S at far range.
                              ---->   Partially Corrected - most 2nd trip echo removed.
                                      Some spurious echo could not be completely removed
                                      due to presence of light showers - see flags.

 2B           !!FLAG!!        0900Z:  Small patch of 10-15 dBZ 2nd trip to SW at far range
 2B           !!FLAG!!        1200Z:  Small patch of 10-15 dBZ 2nd trip to SE at far range
 1B,2B,3B     !!FLAG!!   1240-1400Z:  Small patches of 10-15 dBZ 2nd trip to S at far range
 1B,2B        !!FLAG!!        1440Z:  Small patch of 10-15 dBZ 2nd trip to S at far range

                              0940Z:  Intense clutter speck to N near 15 km range
                              ---->   Corrected - speck removed

 1A,2A        !!FLAG!!        1440Z:  Intense clutter speck to N near 15 km range
                              ---->   Speck cannot be removed without also removing 
                                      significant real precip echo.

                         1450-2351Z:  Light to moderate second trip echo to S
                                      at mid/far range.
                              ---->   Partially corrected - most 2nd trip echo removed.
                                      Not all spurious echo could be removed because of
                                      being embedded in precip - see flags

 3B           !!FLAG!!        1520Z:  Small patch of light (10-20 dBZ) 2nd trip echo
                                      to South at far range.
 2B,3B        !!FLAG!!   1550-1751Z:  Small patches of light to moderate 2nd trip (<25 dBZ)
                                      to S.  Second trip echo could not be completely removed.
 2B,3B        !!FLAG!!   1840-1900Z:  Small patches of light to moderate 2nd trip (<25 dBZ)
                                      to S.  Second trip echo could not be completely removed.
 2B,3B        !!FLAG!!   2000-2020Z:  Small patches of light to moderate 2nd trip (<25 dBZ)
                                      to S.  Second trip echo could not be completely removed.
 2B,3B        !!FLAG!!   2131-2220Z:  Small patches of light to moderate 2nd trip (<25 dBZ)
                                      to SE.  Second trip echo could not be completely removed.

                              1550Z:  Intense clutter specks to NW near 15 km range
                              ---->   Corrected - specks removed

                              1850Z:  Solar interference spike remnant to SE
                              ---->   Corrected - spike removed

*******************************************************************************
30 Nov 98:    Large, but rapidly decaying, mesoscale system present along the 
              extreme southern fringe of the radar scope early on.  Accompanying
              this complex, and covering much of the rest of the radar scope,
              are numerous, unorganized, moderate to intense convective cells.
              All convective activity dissipates and/or moves out of range by 
              09Z.  A lull in activity exists until ~15Z, when scattered cells
              (weaker than earlier in the day) once again begin filling in the 
              scope.  This scattered convection persists through the end of the
              day.  Reduction of reflectivity at 2341Z and 2351Z probably from
              solar calibration procedure.

              Data analyzed:  0000-2351Z

              Satellite Coincidence:  0004Z(367 km), 1306Z(705 km)

              QC notes:  0000-0230Z:  Weak/moderate second-trip echo remaining
                                      SE to SW of radar
                              ---->   Partially corrected - some 2nd trip removed
                                      (see flags)
 1A,2A,3A     !!FLAG!!   0030-0100Z:  Moderate 2nd trip (>25 dBZ) to SW could not
                                      be completely removed.
 3B           !!FLAG!!   0210-0221Z:  Light 2nd trip (<25 dBZ) to SE could not
                                      be completely removed.

 1A,2A,3A     !!FLAG!!   0000-0450Z:  Moderate to intense clutter specks (some
                                      embedded in precip) are present to North
                                      along atoll edge.
                              ---->   Entire period must be flagged - clutter
                                      cannot be removed without also removing
                                      significant real precip echo

                              0800Z:  Moderate second-trip echo NNE of radar
                              ---->   Corrected - 2nd trip removed

                              0840Z:  Moderate second-trip echo NNE of radar
                              ---->   Corrected - 2nd trip removed

                              1000Z:  Clutter specks NW at far range
                              ---->   Corrected - specks removed

                              1020Z:  Clutter specks NW at far range
                              ---->   Corrected - specks removed

                         1030-2000Z:  Removal of light precipitation by defaults
                              ---->   Corrected - precip reinstated
                                      Clutter was also reinstated with the precip
                                      (see flags)

 3A           !!FLAG!!        1500Z:  Moderate clutter speck to NW at far range
                                      reinstated with light precip.
 2A,3A        !!FLAG!!   1620-1630Z:  Intense clutter specks embedded in light
                                      precip to North
 2A,3A        !!FLAG!!   1831-1900Z:  Moderate to intense clutter specks to NW
                                      reinstated with light precip.
 2A,3A        !!FLAG!!   1941-2000Z:  Intense clutter specks reinstated with light
                                      precip in 2nd tilt image

                              1850Z:  Radial spike remnants ESE of radar (sunrise)
                              ---->   Corrected - spike removed

 2A,3A        !!FLAG!!   2040-2210Z:  Intense clutter specks embedded in precip
                                      near radar.

 3A           !!FLAG!!        2341Z:  Moderate clutter speck near radar cannot be
                                      removed without also removing significant
                                      real precip echo.

********************************************************************************