Aikyam-Lab/Synoptic-Bench huggingface dataset:
AREA WILL BE BETWEEN A STALLED BOUNDARY TO THE SOUTH AND AN APPROACHING COLD FRONT AND UPPER LEVEL TROUGH COMING OUT OF THE NORTHERN HIGH PLAINS TONIGHT AND MONDAY. COOLER AND LESS HUMID AIR WILL SPREAD INTO THE AREA BEHIND THE FRONT MONDAY NIGHT AND TUESDAY.
THIS IN AREA OF 700 MBAR THERMAL TROUGH AND SHORT WAVE AS CAN BE SEEN IN LATEST RUC RUN. HOW FAR SOUTHEAST THIS COMPLEX WILL GET IS IN QUESTION SINCE IT WILL BE MOVING INTO AN AREA THAT IS CURRENTLY CAPPED WITH TEMPS AROUND 11 DEGREE CELSIUS ALONG TENNESSEE/KENTUCKY BORDER UNDERNEATH WARM UPPER LEVEL ANTICYCLONE AND AROUND 14 DEGREES ACROSS A GOOD PART OF ARKANSAS INTO SOUTHWESTERN TENNESSEE.
SOME OF DOLORES MOISTURE WILL SURGE INTO OUR SRN ZONES AS EARLY AS TUESDAY AS AN UPPER TROUGH COMES IN FROM THE GULF OF ALASKA AND UPPER WINDS BECOME SWLY.
/ISSUED 426 PM CDT SUN JUL 19 2015/ THE UPPER LEVEL RIDGE OF HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL CONTINUE TO FLATTEN AND WEAKEN SOMEWHAT THROUGH THE EARLY PART OF THIS WEEK. RETAINED SLGT CHC TO CHC POPS OVER THE OK PNHDL AND PARTS OF THE NRN TX PNHDL ARUOND THE NRN PERIPHERY OF THE UPPER LEVEL RIDGE. THERE COULD BE AN ISOLD STORM OR TWO OVER THE WRN TX PNHDL IN CLOSE PROXIMITY TO A SFC TROF AXIS. A WEAK COLD FRONT IS PROGGED TO MOVE ACROSS THE OK PNHDL AND NRN TX PNHDL LATE TONIGHT INTO EARLY MONDAY. THE WEAK SFC COLD FRONT WILL CONTINUE TO MOVE SWD ACROSS THE REMAINDER OF THE TX PNHDL MONDAY AND MONDAY NIGHT. COOLER TEMPS ARE ALSO FORESEEN DURG THIS TIME FRAME.
THIS WILL HOPEFULLY LIMIT THE DOWNBURST POTENTIAL WITH THE LOWER LEVELS ALSO NOT NEARLY AS DRY. THE HUMIDITY WILL ONCE AGAIN DECREASE WITH DEW POINTS IN THE LOWER TO MIDDLE 50S EXPECTED AND HIGHS IN THE LOWER TO MIDDLE 80S. THE UPPER RIDGE CENTERED OVER THE ROCKIES SHIFTS EAST.
751 PM EDT SUN JUL 19 2015 HIGH PRESSURE RIDGE TO REMAIN OVER THE CENTRAL GULF COAST THROUGH THE EARLY PART OF THE WEEK.
736 PM CDT SUN JUL 19 2015 A FEW SHOWERS ARE MOVING THROUGH THE BWCAW AHEAD OF A COLD FRONT. THE FOCUS FOR TONIGHT AND MONDAY WILL BE A COLD FRONT THAT WILL DROP SOUTHWARD ACROSS THE NORTHLAND. COOLER AIR WILL INFILTRATE THE REGION LATER TONIGHT AND MONDAY. ALTHOUGH TEMPERATURES WILL NOT BE TOO MUCH COOLER BEHIND THIS FRONT. AS HIGH PRESSURE PUSHES INTO THE DAKOTAS BEHIND THE FRONT. HIGH PRESSURE WILL MOVE INTO THE UPPER MIDWEST.
622 PM CDT SUN JUL 19 2015 A RIDGE OF HIGH PRESSURE ALOFT WILL REMAIN OVER THE SOUTHERN PLAINS THIS WEEK. /ISSUED 331 PM CDT SUN JUL 19 2015/ AN UPPER LEVEL RIDGE OF HIGH PRESSURE CONTINUES TO SIT OVER THE REGION. THE HIGH PRESSURE CENTER IS PROGGED TO SLOWLY MOVE WESTWARD THIS WEEK AND BECOME SLIGHTLY WEAKER AS IT TRAVERSES OVER TEXAS ON ITS WAY TOWARDS THE DESERT SOUTHWEST.
A RIDGE OF HIGH PRESSURE WILL REMAIN TO THE SOUTH THROUGH THE REST OF THE WEEK.
1041 PM EDT SUN JUL 19 2015 SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING AS AN UPPER DISTURBANCE PUSHES EAST AND A WEAK COLD FRONT DROPS SOUTH ACROSS THE AREA TONIGHT. MORE SHOWERS AND STORMS WILL DEVELOP ON MONDAY AHEAD OF ANOTHER COLD FRONT THAT WILL PUSH THROUGH THE REGION TUESDAY MORNING. A COOLER AND LESS HUMID AIRMASS WILL SETTLE IN FOR THE MIDDLE OF THE WEEK. A WEAK COLD FRONT WILL DROP SOUTHEASTWARD THROUGH THE ILN CWA OVERNIGHT. ELSEWHERE THE CONVECTION HAS CAUSED POCKETS OF COOLER LOCATIONS. THE WEAKENING COLD FRONT WILL STALL AND WASH OUT ALONG THE OHIO RIVER MONDAY MORNING. POTENTIAL FOR CONVECTION WILL DIMINISH MONDAY NIGHT AS THE FRONT MOVES THROUGH AND USHERS IN A COOLER AND LESS HUMID AIRMASS. COLD FRONT TIMING FOR TUESDAY INTO TUESDAY NIGHT IS FASTER THAN PREVIOUS RUNS.
IN THE LOW LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS SOUTH FLORIDA OVERNIGHT. A LARGE ANTICYCLONE WILL BE CENTERED NEAR THE TEXAS/LOUISIANA BORDER TONIGHT.
COLD FRONT ADVANCING THROUGH SE MICHIGAN WILL INTRODUCE A LOW PROBABILITY FOR A SHOWER/THUNDERSTORM MONDAY EVENING/NIGHT. TONIGHT PREFRONTAL TROUGH CURRENTLY EXITING CWA. ACTUAL COLD FRONT NOW PUSHING THROUGH THE SAGINAW VALLEY WITH MUCH DRIER AIR BEHIND IT AS DEW POINTS HAVE DROPPED FROM 72 TO 65 AT MBS.
WITH OFFSHORE FLOW IN THE MORNING AND CONVECTIVE DEVELOPMENT PROBABLY HOLDING OFF UNTIL LATER IN THE AFTERNOON ACROSS CENTRAL AREAS SHOULD SEE HIGHS INTO THE LOWER 90S. ANOTHER HOT DAY IS EXPECTED WITH HIGHS INTO THE LOWER TO MID 90S AWAY FROM THE COAST WITH A LATE DAY SEA BREEZE TRYING TO DEVELOP ALONG THE SRN TREASURE COAST.
1003 PM CDT SUN JUL 19 2015 THE PERSISTENT DEATH RIDGE ALOFT REMAINS ANCHORED OVER MUCH OF THE SRN PLAINS AND FOUR STATE REGION THIS EVENING. 02Z TEMPS ARE RUNNING 1-2 DEGREES WARMER THAN 24 HOURS AGO. WITH THE 4 INCH SOIL TEMPS ALSO RUNNING SLIGHTLY WARMER AS WELL /AT 90 DEGREES/. A WARMER START TO THE MORNING WITH NEARLY IDENTICAL IF NOT HOTTER TEMPS MONDAY WILL YIELD HEAT INDICES NEAR OR IN EXCESS OF 105 DEGREES OVER MUCH OF SW AR/PORTIONS OF WRN LA. AS THE RIDGE ALOFT MAY FLATTEN SOME OVER ERN OK/WRN AR.
818 PM EDT SUN JUL 19 2015 A COLD FRONT WILL CROSS THE REGION LATE TONIGHT AND MONDAY. ANOTHER COLD FRONT WILL CROSS THE AREA LATE TUESDAY INTO TUESDAY NIGHT. HIGHER PROBABILITY OF SHOWERS TONIGHT AS SURFACE AND UPPER LEVEL TROUGH APPROACH FROM THE WEST AND MOVE ACROSS THE FORECAST AREA. WEAK RIDGE WILL BUILD IN FROM WEST LATER MONDAY. BUT ANOTHER COLD FRONT/PRE- FRONTAL TROUGH WILL BRING MORE SHOWERS AND THUNDERSTORMS TO THE REGION ON TUESDAY. THE TROUGH WILL PASS THROUGH DURING THE AFTERNOON. TUESDAY WILL BE ON THE MUGGY SIDE WITH DEWPOINTS IN THE 60S, WHILE HIGHS WILL RANGE FROM THE MID 70S NORTH TO THE LOWER 80S INTERIOR DOWNEAST.
1218 AM EDT MON JUL 20 2015 HIGH PRESSURE RIDGE TO REMAIN OVER THE CENTRAL GULF COAST THROUGH THE EARLY PART OF THE WEEK.
BUT ACTIVITY ALONG I-25 AND OVER THE HIGH VALLEYS HAS DROPPED OFF IN THE WAKE OF A MORE STABLE AIRMASS. TSRA WERE JUST BEGINNING TO DEVELOP ACROSS THE HIGHER TRRN. THIS IS ASSOCIATED WITH A 700 MB TROUGH/SFC BOUNDARY THAT WILL BE OVER THIS REGION BY EARLY THIS EVENING. THIS 700 MB TROUGH TRIES TO CLOSE OFF.
WEAK LOW PRESSURE SYSTEM WSW OF THE BAY AREA FILLING AND MID CLOUDS ALONG THE E TO W DEFORMATION/STRETCHING ZONE ALONG THE I-80 CORRIDOR ARE ERODING. THIS DOES NOT APPEAR TO BE THE CASE OVERNITE AS THE LOW FILLS AND SHORT WAVE ENERGY REMAINS OFFSHORE WITH THE LOW. MOISTURE WILL CONTINUE TO IMPACT NORTHERN CALIFORNIA AT LEAST THROUGH TUESDAY WITH THE BULK OF THE ACTIVITY MAINLY STAYING OVER THE MOUNTAINS AS THE LOW PRESSURE SYSTEM CURRENTLY OFF THE COAST SHIFTS INLAND AND MERGES WITH WHAT IS LEFT FROM DOLORES MONDAY NIGHT INTO TUESDAY.
856 PM EDT SUN JUL 19 2015 SHOWERS AND THUNDERSTORMS WILL ACCOMPANY A COLD FRONTAL PASSAGE TONIGHT. THE NEW WORK WEEK WILL START MAINLY DRY AND SLIGHTLY COOLER. THAT TROUGH IS PROGGED TOO DEEPEN AND PULL ANOTHER FRONT ACROSS THE REGION. WITH THE FRONT EXPECTED TO BE EAST OF OUR RIDGE COUNTIES BY NIGHTFALL.
/ISSUED 656 PM CDT SUN JUL 19 2015/ HIGH PRESSURE WILL DOMINATE ONCE AGAIN WITH WIDESPREAD VFR CONDITIONS.
932 PM EDT SUN JUL 19 2015 A PAIR OF COLD FRONTS WILL PUSH SOUTHEAST ACROSS THE REGION TONIGHT AND ON TUESDAY. HIGH PRESSURE WILL BUILD OVER PENNSYLVANIA DURING THE SECOND HALF OF THE WEEK. PRELIMINARY CELLS FIRING DUE TO DIURNAL DESTABILIZATION AND BOUNDARY LAYER THERMAL RIDGE PUSHING EAST OF MY AREA. COOLER/DRIER AIR IN WAKE OF COLD FRONT SHOULD MAKE SOME INROADS ACROSS THE NW MTNS. STALLED OUT COLD FRONT NR THE MASON DIXON LINE WILL BE THE FOCUS FOR SCT PM CONVECTION ON MONDAY. TO THE L90S ACROSS THE LOWER SUSQ VALLEY.
ALSO, A COUPLE OF WEAK SFC TROFS/CONVERGENCE ZONES MAY BE HELPING THIS REGION OF ACTIVITY. THE MCS/MCV OVER THE LOWER MO VALLEY IS FORECAST BY THE MODELS TO DROP SE AROUND THE RIDGE INTO THE TN VALLEY BY MONDAY MORNING, BUT IT IS UNCLEAR IF IT WILL FULLY REGENERATE OR NOT. IN FACT, A COLD FRONT WILL LIKELY SAG INTO THE AREA ON TUESDAY.
/ISSUED 426 PM CDT SUN JUL 19 2015/ THE UPPER LEVEL RIDGE OF HIGH PRESSURE OVER THE SOUTHERN PLAINS WILL CONTINUE TO FLATTEN AND WEAKEN SOMEWHAT THROUGH THE EARLY PART OF THIS WEEK. RETAINED SLGT CHC TO CHC POPS OVER THE OK PNHDL AND PARTS OF THE NRN TX PNHDL AROUND THE NRN PERIPHERY OF THE UPPER LEVEL RIDGE. THERE COULD BE AN ISOLD STORM OR TWO OVER THE WRN TX PNHDL IN CLOSE PROXIMITY TO A SFC TROF AXIS. A WEAK COLD FRONT IS PROGGED TO MOVE ACROSS THE OK PNHDL AND NRN TX PNHDL LATE TONIGHT INTO EARLY MONDAY. THE WEAK SFC COLD FRONT WILL CONTINUE TO MOVE SWD ACROSS THE REMAINDER OF THE TX PNHDL MONDAY AND MONDAY NIGHT. COOLER TEMPS ARE ALSO FORESEEN DURG THIS TIME FRAME.
/ISSUED 331 PM CDT SUN JUL 19 2015/ AN UPPER LEVEL RIDGE OF HIGH PRESSURE CONTINUES TO SIT OVER THE REGION. THE HIGH PRESSURE CENTER IS PROGGED TO SLOWLY MOVE WESTWARD THIS WEEK AND BECOME SLIGHTLY WEAKER AS IT TRAVERSES OVER TEXAS ON ITS WAY TOWARDS THE DESERT SOUTHWEST.
827 PM EDT SUN JUL 19 2015 HIGH PRESSURE RIDGE TO REMAIN OVER THE CENTRAL GULF COAST THROUGH THE EARLY PART OF THE WEEK.
HIGH PRESSURE MOVING TO THE SOUTH OF THE REGION WILL BRING QUIET WEATHER TONIGHT. AS COLD FRONT SLIDES SOUTHEAST THROUGH THE AREA. SOME SHOWERS AND THUNDERSTORMS ARE POSSIBLE MONDAY AFTERNOON ALONG AND AHEAD OF THE COLD FRONT. BEFORE COLD FRONT MOVES THROUGH THE AREA LATER IN THE DAY. THIS SHOULD ALLOW LOWS TO DROP INTO THE LOWER TO MID 60S PER SHORT TERM BLENDED MODEL GUIDANCE. WITH THE COLD FRONT LAGGING BEHIND IT SOMEWHAT.
MAX TEMPS WILL REACH THE LOW TO MID 90S. ATLC RIDGE AXIS OVER S FL WILL COMBINE WITH A WEAK FRONTAL TROF OVER N FL TO MAINTAIN A PERSISTENT LIGHT TO GENTLE S/SWRLY BREEZE OVER THE LCL ATLC.
/ISSUED 348 AM EDT MON JUL 20 2015/ A WEAKNESS IN THE H5 RIDGE WILL LIE ACROSS THE UNITED STATES EAST COAST THIS WEEK. BOTH GFS AND ECMWF CARVE OUT A DEEPER TROUGH OVER THE EASTERN SEABOARD AND PINCH OFF AND DEVELOP A CLOSED LOW OVER FLORIDA. DEEPER MOISTURE AROUND THIS TROUGH COULD MOVE INTO THE AREA TO POSSIBLY SUPPORT A BETTER CHANCE FOR MUCH NEEDED RAINFALL THIS WEEKEND.
816 AM EDT MON JUL 20 2015 A PAIR OF COLD FRONTS WILL PUSH SOUTHEAST ACROSS THE REGION. HIGH PRESSURE WILL BUILD OVER PENNSYLVANIA DURING THE SECOND HALF OF THE WEEK. DYING COLD FRONT LYING ACROSS NORTH CENTRAL PA THIS MORNING WILL SAG SOUTH ACROSS CENTRAL AND SOUTHERN PA THROUGHOUT THE DAY. SCT DIURNALLY- DRIVEN CONVECTION IS EXPECTED FIRE ALONG AND S OF COLD FRONT THIS AFTN. AREA OF MVFR CIGS IMPACTING WESTERN AND NORTHERN TERMINALS EARLY THIS MORNING AS A COLD FRONT MOVES THROUGH. COLD FRONT AT 12Z NEARLY SPLITTING THE STATE FROM SW-NE. ANOTHER COLD FRONT WILL BRING SCT SHOWERS/TSTMS.
CONVECTION MAY LINGER INTO THE EARLY AFTERNOON NEAR THE LOW CENTER. A TROUGH WILL CROSS THE AREA THIS MORNING THROUGH THE EARLY AFTERNOON. A WEAKENING TROUGH MOVING OVER THE AREA WILL PROVIDE SOME ADDITIONAL INSTABILITY ACROSS THE ENTIRE DISTRICT TUESDAY.
THE PERSISTENT UPPER LVL RIDGE OVER THE REGION WILL FLATTEN ALLOWING SCT TO BKN HIGH CIRRUS INTO THE AREA. /ISSUED 210 AM CDT MON JUL 20 2015/ UPPER-LEVEL RIDGE TO MAINTAIN HOT TEMPERATURES ACROSS THE REGION TODAY WITH HIGH TEMPERATURES FORECAST TO CLIMB INTO THE UPPER 90S.
ALONG WITH THE HIGH DEW POINTS. A COLD FRONT WILL APPROACH THE AREA BY LATE TONIGHT AND MAY PRODUCE SOME SCATTERED TSTMS OUT AHEAD OF IT.
1207 PM EDT MON JUL 20 2015 WEAK LOW PRESSURE WILL REMAIN OVER THE AREA INTO TUESDAY. A COLD FRONT WILL CROSS THE AREA TUESDAY NIGHT. HIGH PRESSURE WILL THEN BUILD THROUGH THE MIDDLE OF THE WEEK AND PERSIST INTO THE WEEKEND. CU FIELD OVER TERRAIN WITH MID CLOUDS EAST OF THE BLUE RIDGE. WEAK LEE TROUGH DEVELOPS THIS AFTERNOON. COLD FRONT CURRENTLY EXTENDING FROM THE UP OF MI TO WRN IA LOOKS TO REACH THE APPALACHIANS BY 18Z TUE AND CLEARING THE FCST AREA BY 00Z WED. COLD FRONT WILL BE SAGGING SOUTHWARD THROUGH THE REGION TUESDAY EVENING. BUT AT A MINIMUM IT WILL BE COOLER THAN RECENT NIGHTS.
/ISSUED 254 AM PDT MON JUL 20 2015/ LOW PRESSURE OFF THE CALIFORNIA COAST CONTINUES TO PULL MOISTURE NORTH INTO THE EASTERN SIERRA AND WESTERN NEVADA.
726 AM EDT MON JUL 20 2015 A PAIR OF COLD FRONTS WILL PUSH SOUTHEAST ACROSS THE REGION. HIGH PRESSURE WILL BUILD OVER PENNSYLVANIA DURING THE SECOND HALF OF THE WEEK. 09Z SFC ANALYSIS PLACES COLD FRONT FROM NW OHIO INTO UPSTATE NEW YORK. LEAVING DYING COLD FRONT TO SAG SOUTH ACROSS PA TODAY. SCT DIURNALLY-DRIVEN CONVECTION IS EXPECTED FIRE ALONG AND S OF COLD FRONT THIS AFTN. AREA OF MVFR CIGS IMPACTING WESTERN AND NORTHERN TERMINALS EARLY THIS MORNING AS A COLD FRONT MOVES THROUGH. COLD FRONT AT 12Z NEARLY SPLITTING THE STATE FROM SW-NE. ANOTHER COLD FRONT WILL BRING SCT SHOWERS/TSTMS.
THIS HAS BEEN THE WARMEST & MOST HUMID NIGHT OF THE PAST 3-4 DATES WITH TEMPERATURES IN THE LOWER- MID 80S RESIDING ACROSS NEARLY ALL OF KICT COUNTRY. TONIGHT: THE SOUTH/SOUTHEAST PROGRESS OF THE AFORE-MENTIONED COLD FRONT CONTINUES TO DRAW THE GREATEST ATTENTION. AN AMPLIFYING UPPER-DECK RIDGE COVERING MOST OF THE CENTRAL THIRD OF THE U. WOULD SPELL A RETURN TO MUCH WARMER WEATHER FOR GREAT PLAINS AS THE WORK-WEEK DRAWS TO A CLOSE. THERE WILL BE A CHANCE FOR STORMS TO DEVELOP LATE THIS AFTERNOON ALONG AND SE OF THE KS TURNPIKE AS A COLD FRONT SAGS SOUTH. FEEL THE BETTER STORM COVERAGE WILL COME TONIGHT AS STORMS ONCE AGAIN MOVE OUT OF THE HIGH PLAINS.
648 AM CDT MON JUL 20 2015 A COLD FRONT IS PUSHING THROUGH THE UPPER MISSISSIPPI VALLEY EARLY THIS MORNING. HIGH PRESSURE WILL BUILD SOUTHEAST FOR THE REST OF THE SHORT TERM. UPPER RIDGING BUILDS EAST IN RESPONSE TO WESTERN TROUGH THAT MOVES ASHORE BY MIDWEEK.
948 AM EDT MON JUL 20 2015 HIGH PRESSURE WILL BRIEFLY BUILD OVERHEAD TODAY BEFORE ANOTHER COLD FRONT MOVES ACROSS THE REGION ON TUESDAY MORNING.
638 AM CDT MON JUL 20 2015 ANOTHER QUIET MORNING ACROSS THE REGION AS A COLD FRONT MOVES THROUGH NORTHERN MINNESOTA AND ON INTO NORTHWEST WISCONSIN. TEMPERATURES TODAY AND MONDAY TO REMAIN A LITTLE COOLER THAN NORMAL WITH THE COOLER AND DRIER AIRMASS WORKING INTO THE REGION AND THE CLOUD COVER ACROSS THE NORTH.
1158 AM CDT MON JUL 20 2015 HIGH PRESSURE CONTINUES OVER THE AREA AND TEMPERATURES WILL BE VERY WARM. POPS WILL BE INCREASING THIS AFTERNOON IN THE NORTH AS A COLD FRONT MOVES THROUGH MISSOURI.
AN UPPER LEVEL LOW CONTINUES TO SPIN OFF THE CALIFORNIA COAST BRINGING MOISTURE NORTH OVER NORTHWEST CALIFORNIA. THIN CAPE AND VERY LITTLE WIND ALOFT WILL RESTRICT STORMS FROM BECOMING STRONG/SEVERE TODAY AND AGAIN TUESDAY AFTERNOON AS THE LOW MOVES INTO THE GREAT BASIN.
ALONG WITH THE DRIER AIR WILL COME ELEVATED TEMPERATURES WITH HIGHS APPROACHING THE 110 DEGREE MARK FOR THE LOWER DESERTS BY THE WEEKEND. GETTING CAUGHT UP IN A SHORT WAVE TROUGH THAT DIGS ALONG THE PACIFIC NORTHWEST COAST.
LATEST WV IMAGERY SHOWS SOUTHWESTERLY FLOW ALOFT ACROSS ARIZONA BETWEEN THE UPPER LOW OFF THE CALIFORNIA COAST AND THE UPPER HIGH OVER TEXAS.
ALSO ADDED LOW POPS FOR AFTER MIDNIGHT ACROSS THE HIGHER TERRAIN. LIMITED BY CLOUD COVER SO SLIGHTLY COOLER TODAY THEN STILL FAIRLY MILD UNDER THE CLOUDS TONIGHT.
AND ONSHORE WINDS WILL RESULT IN COOLER INLAND TEMPERATURES THIS AFTERNOON. AN UPPER LEVEL TROUGH WILL SLOWLY SAG SOUTH INTO THE PACIFIC NORTHWEST THROUGH TUESDAY.
CHATTANOOGA AIRPORT, TN 94 74 93 74 / 40 40 50 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 90 72 89 72 / 50 50 60 50 OAK RIDGE, TN 91 73 89 73 / 50 50 60 50 TRI CITIES AIRPORT, TN 88 69 88 68 / 50 50 60 50.
1048 AM EDT MON JUL 20 2015 A TROUGH OF LOW PRESSURE LINGERS OVER THE REGION THIS AFTERNOON AS HIGH PRESSURE REMAINS NEARLY STATIONARY ACROSS THE SOUTHEASTERN STATES. A COLD FRONT CROSSES THE AREA LATE TUESDAY. HIGH PRESSURE BUILDS INTO THE AREA FROM THE NORTHWEST FOR THE MID WEEK PERIOD.
A LOW WILL APPROACH THE AREA FOR COOLER AND DRIER CONDITIONS BY MIDWEEK THEN CONTINUE INTO THE WEEKEND. TEMPERATURES SHOULD BE NOTICEABLY COOLER THAN YESTERDAY OVERALL. SAVE FOR SOME SBA COUNTY LOCATIONS STARTING OFF WARMER. ***FROM PREVIOUS DISCUSSION*** THINGS BEGIN TO STABILIZE OVER NIGHT TONIGHT AND THE SHOWER THREAT WILL BE CONFINED TO THE CENTRAL COAST AND THE HIGHER TERRAIN. THE UPPER LOW OPENS UP AND MOVES ACROSS THE AREA ON TUESDAY. THE SW FLOW BEHIND THIS TROF WILL DRY THINGS OUT.
851 AM EDT MON JUL 20 2015 A COLD FRONT WILL PUSH OFFSHORE EARLY THIS MORNING. HIGH PRESSURE WILL FOLLOW THIS FRONT LATER TODAY. ANOTHER COLD FRONT WILL APPROACH FROM THE WEST TONIGHT.
647 AM CDT MON JUL 20 2015 AN UPPER LEVEL RIDGE THAT HAS KEPT THE REGION SEASONABLY HOT AND RAIN-FREE FOR THE LAST WEEK WILL WEAKEN A LITTLE DURING THE NEXT FEW DAYS. THIS WILL ALLOW A COLD FRONT TO MOVE INTO CENTRAL AND SOUTHERN OKLAHOMA BEFORE STALLING NORTH OF THE RED RIVER TUESDAY NIGHT. A SIMILAR SCENARIO WITH THE LOW CLOUDS IS EXPECTED OVERNIGHT TONIGHT. /ISSUED 230 AM CDT MON JUL 20 2015/ AN UPPER LEVEL RIDGE HAS BEEN THE FEATURE THAT HAS IMPACTED THE WEATHER OF NORTH CENTRAL TEXAS THE MOST FOR THE LAST WEEK. THERE IS A COLD FRONT THAT IS MAKING ITS WAY INTO OKLAHOMA THIS MORNING.
/ISSUED 347 AM CDT MON JUL 20 2015/ AREA REMAINS ON THE SOUTHERN PERIPHERY OF RIDGE CENTERED NEAR THE ARKLATEX REGION.
716 AM EDT MON JUL 20 2015 HIGH PRESSURE WILL BRIEFLY BUILD OVERHEAD TODAY BEFORE ANOTHER COLD FRONT MOVES ACROSS THE REGION ON TUESDAY MORNING.
1050 AM EDT MON JUL 20 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TODAY BRINGING DRIER AND COOLER AIR. ANOTHER COLD FRONT WILL SWEEP THROUGH ON TUESDAY AND ONCE AGAIN BRING THE CHANCE OF SHOWERS AND THUNDERSTORMS.
Highs will still likely reach the low to mid 90s across most locations, with heat indices peaking just below the advisory threshold of 108 degrees. Last night's convection is responsible for keeping temperatures and dewpoints a bit "cooler" this morning, which will have an impact on eventual high temperatures.
709 AM EDT MON JUL 20 2015 HIGH PRESSURE WILL BRIEFLY BUILD OVERHEAD TODAY BEFORE ANOTHER COLD FRONT MOVES ACROSS THE REGION ON TUESDAY MORNING.
UPPER LEVEL RIDGE LOOKING A BIT WEAKER AND ELONGATED THAN OVER THE WEEKEND. WITH THE WEAKER RIDGE AND POSSIBLE INCREASES OF TROPICAL MOISTURE. /ISSUED 356 AM CDT MON JUL 20 2015/ JULY'S MID/UPPER LEVEL RIDGE WILL CONTINUE TO KEEP A LARGE PART OF SOUTHEAST TEXAS DRY THIS WEEK.
534 AM MDT MON JUL 20 2015 CLEAR AND QUIET EARLY THIS MORNING AS WEAK RIDGING ALOFT DEVELOPS OVER THE AREA. AND PERHAPS ONE OR TWO HOLDING TOGETHER AS THEY MOVE EAST OVER THE HIGH PLAINS THIS EVENING.
/ISSUED 356 AM CDT MON JUL 20 2015/ JULY'S MID/UPPER LEVEL RIDGE WILL CONTINUE TO KEEP A LARGE PART OF SOUTHEAST TEXAS DRY THIS WEEK.
A FEW SHOWERS OR TSTMS WILL BE POSSIBLE MAINLY DURING THE AFTN AND PRIMARILY ACRS PORTIONS OF ACADIANA AND THE LOWER ATCHAFALAYA BASIN. /ISSUED 347 AM CDT MON JUL 20 2015/ AREA REMAINS ON THE SOUTHERN PERIPHERY OF RIDGE CENTERED NEAR THE ARKLATEX REGION.
A COLD FRONT WILL APPROACH THE AREA BY LATE TONIGHT AND MAY PRODUCE SOME SCATTERED TSTMS OUT AHEAD OF IT.
MAY HAVE TO EXTEND THE ADVISORY FARTHER OUT IN TIME FOR SOME LOCATIONS AS LITTLE IN THE WAY OF CHANGE IS EXPECTED FOR TUESDAY ALTHOUGH THE RIDGE WILL BEGIN TO FLATTERN OUT AND RETROGRADE SLIGHTLY AS A WEAK FRONT ATTEMPTS TO ADVANCE SWRD INTO NRN OK/AR. SMALL RAIN CHANCES WILL ALSO CREEP INTO THE PICTURE DUE TO THIS SUBTLE CHANGE IN THE RIDGE ORIENTATION BUT THE MAJORITY OF THE AREA WILL REMAIN DRY ASIDE FROM SOME OF OUR NRN AND ERN AREAS WHERE THE BEST SHOT AT SEEING ISOLD CONVECTION WILL BE FOUND. THE PERSISTENT UPPER LVL RIDGE OVER THE REGION WILL FLATTEN ALLOWING SCT TO BKN HIGH CIRRUS INTO THE AREA. /ISSUED 210 AM CDT MON JUL 20 2015/ UPPER-LEVEL RIDGE TO MAINTAIN HOT TEMPERATURES ACROSS THE REGION TODAY WITH HIGH TEMPERATURES FORECAST TO CLIMB INTO THE UPPER 90S.
607 AM CDT MON JUL 20 2015 VFR CONDITIONS COULD BE COMPROMISED AT TIMES LATER THIS AFTN THROUGH TONIGHT BY ISO-SCT TSRA AND SOME LOWER VISBYS BEHIND A COLD FRONT. /ISSUED 413 AM CDT MON JUL 20 2015/ UPPER RIDGE WILL RETREAT SOUTH OF THE REGION TODAY AND OVERNIGHT IN RESPONSE TO A PAIR OF SMALL TROUGHS EMBEDDED IN STRONGER WESTERLY FLOW. THE FIRST OF THESE WAVES IS TRACKING ACROSS SW KS THIS MORNING COMPLETE WITH A COLD FRONT MOTORING SOUTH THROUGH THE NRN PANHANDLE. THE RIDGE WILL REMAIN SOUTH OF THE AREA WITH THE OLD FRONTAL BOUNDARY NEAR OR JUST NORTH OF THE FORECAST AREA THROUGH TUESDAY AFTERNOON.
SHOULD SEE THAT AREA GRADUALLY DIMINISH THIS MORNING AS THE LOW LEVEL JET WEAKENS, BUT I DON'T THINK IT WILL TOTALLY FALL APART.
THE TROUGH IS FORECAST TO LIFT TO THE NORTHEAST TODAY AND WILL LIKELY CONTINUE TO ENHANCE CONVECTIVE ACTIVITY ACROSS NORTHWESTERN PORTIONS OF THE REGION. DEW POINTS IN THE 50'S HAVE BEEN MEASURED THROUGHOUT NORTHERN ARIZONA, WITH VALUES IN THE 60'S AND EVEN THE LOW 70'S WITHIN THE LOWER TERRAIN OF YAVAPAI COUNTY.
WATER VAPOR SHOWS THE CENTER OF THE MID/UPPER LEVEL LOW SWIRLING OFF THE COAST OF CALIFORNIA THIS MORNING WEST OF POINT CONCEPTION.
1031 AM EDT MON JUL 20 2015 A PAIR OF COLD FRONTS WILL PUSH SOUTHEAST ACROSS THE REGION. HIGH PRESSURE WILL BUILD OVER PENNSYLVANIA DURING THE SECOND HALF OF THE WEEK. SCT DIURNALLY-DRIVEN CONVECTION WILL FIRE ALONG AND S OF COLD FRONT THIS AFTN. RIBBON OF MVFR CIGS CROSSING THE LAUREL HIGHLANDS AND CENTRAL MOUNTAINS 14Z TO 17Z AS COLD FRONT PASSES. ANOTHER COLD FRONT WILL BRING SCT SHOWERS/TSTMS.
1154 AM EDT MON JUL 20 2015 A COLD FRONT WILL PUSH OFFSHORE EARLY THIS MORNING. HIGH PRESSURE WILL FOLLOW THIS FRONT LATER TODAY. ANOTHER COLD FRONT WILL APPROACH FROM THE WEST TONIGHT.
A DEEP RIDGE COMPLEX STRETCHES FROM EASTERN TEXAS TO THE WESTERN ATLANTIC. THE LOWER PORTIONS HAVE FRACTURED INTO TWO PIECES. THIS MORNING'S SOUNDING SUPPORTED PREVIOUS EVIDENCE OF BOUNTIFUL DRY AIR IN THE LOWER-MID LEVELS. CUMULUS WILL STRUGGLE THIS AFTERNOON IN THE LEE OF THE LOWER KEYS. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS SOUTH FLORIDA THIS AFTERNOON THROUGH TUESDAY.
1042 PM EDT THU OCT 8 2015 THE LOCAL ATMOSPHERE IS A LITTLE WARMER. SOME FLOODING OF LOW-LYING AREAS IN THE MIDDLE AND LOWER KEYS HAS OCCURRED DURING THE HIGHER HIGH TIDES. WITH A COASTAL FLOOD STATEMENT IN THE LOWER/MIDDLE KEYS.
CHATTANOOGA AIRPORT, TN 63 79 60 72 / 20 50 70 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 62 77 58 69 / 20 70 80 20 OAK RIDGE, TN 63 77 58 68 / 20 70 80 20 TRI CITIES AIRPORT, TN 57 75 55 65 / 20 80 90 30.
1024 PM EDT THU OCT 8 2015 A COLD FRONT WILL MOVE THROUGH THE REGION ON FRIDAY. HIGH PRESSURE WILL THEN WORK INTO THE AREA FOR THE WEEKEND.
1145 PM EDT THU OCT 8 2015 HIGH PRESSURE WILL SHIFT TO THE EAST OF THE REGION OVERNIGHT AS LOW PRESSURE APPROACHES FROM THE WEST. LOW PRESSURE WILL MOVE EAST THROUGH NORTHERN NEW ENGLAND ON FRIDAY AND WILL DRAG A TRAILING COLD FRONT THROUGH THE AREA LATE IN THE DAY.
930 PM CDT THU OCT 8 2015 THE OVERALL FORECAST HAS NOT CHANGED WITH A COLD FRONT EXPECTED TO MOVE INTO THE AREA LATER TONIGHT WITH A CHANCE FOR SHOWERS/STORMS. SHOWERS AND ISOLATED STORMS ARE STILL EXPECTED TO DEVELOP ACROSS NORTHERN OK NEAR SUNRISE AS A COLD FRONT MOVES INTO THE STATE. /ISSUED 227 PM CDT THU OCT 8 2015/ THE MAIN FORECAST CONCERN IS TONIGHT'S APPROACHING COLD FRONT AND ANY ASSOCIATED CONVECTION. AFTER A SLIGHTLY COOLER DAY TOMORROW.
A cold front extended northeast to southwest across northeast Kansas at 19 UTC. The next issue concerning precipitation will be from the mid-level upper trough which is forecast to move through the area tonight. After the upper trough moves through early Friday, skies should clear quickly due to subsidence and dry air.
WEAK BACKDOOR FRONT PUSHING SOUTH AFTER 06Z TO RENEW THE LOW LEVEL EASTERLY GRADIENT AND PROVIDE ADDITIONAL FORCING FOR PRECIP DEVELOPMENT FROM THE EAST SLOPES TO THE NORTHEAST PLAINS.
1105 PM CDT THU OCT 8 2015 06Z TAF CYCLE AREAS OF DENSE FOG DEVELOPED ACROSS THE SOUTHWEST AND SOUTH CENTRAL TEXAS PANHANDLE AND FOG WILL LIKELY CONTINUE UNTIL THE COLD FRONT MOVES THROUGH AROUND 10Z FRIDAY.
A RIDGE OF HIGH PRESSURE OVER THE TWO STATE AREA WAS PRODUCING OUR DRY CONDITIONS. THE RIDGE OF HIGH PRESSURE REMAINS IN PLACE WHICH MAY REDUCE THE CHANCES FOR PCPN OVER THE EAST SLOPES OF THE WA CASCADES AND THE POPS WERE LOWERED ACROSS THIS AREA FOR FRIDAY MORNING.