Aikyam-Lab/Synoptic-Bench huggingface dataset:
/issued 1153 AM CDT Wed Jun 16 2021/ Mid-level cloud cover continues shifting south over the Ozark Mountains into the Lower Mississippi Valley, highlighting the position of the next frontal boundary to impact the Ark-La-Tex from the east.
High pressure will continue to build over the central US with a strong upper trough lifting northeast over New England. This pattern will continue trough Thursday with no rain expected across the area. Temperatures will be warm during the day but floating around seasonable values with highs in the low 90s. Nighttime lows will be slightly more reasonable with lows more in the low 60s across the area.
The Bluegrass and Lake Cumberland areas are expected to reach the low to mid 80s. A severe MCS will be possible Thursday night over the Midwest, likely moving from Iowa to the lower Great Lakes.
346 PM EDT Wed Jun 16 2021 Pleasant conditions abound resulting from established 304-308 Kt layer anticyclone. The central CONUS ridge axis will flatten through the upper Midwest on Thursday as a more energetic westerly jet establishes between a closed low over the Canadian Prairies and broad 594 dam H5 ridge across the Four Corners. Temps will be nearly 10F warmer Thursday aided by near-surface southwest flow/WAA and expanding H8 thicknesses. A bit of uncertainty with how far east the H8 thermal gradient migrates east on Thursday, but can expect highs at least in the low, if not mid, 80s.
304 PM EDT Wed Jun 16 2021 The high pressure ridge to the south will lift gradually north over the area through the end of the week and into the weekend, as an area of low pressure lifts northward over the western Gulf waters. Temperatures will return closer to normal with highs around 90 and lows in the lower to mid 70s. The high pressure ridge axis to the south of the waters will lift north over the waters over the next few days with winds lightening and turning more to the S/SE with afternoon sea breezes turning winds onshore near the coast each day.
The cold front is moving into eastern ND as of 3 pm CDT. Coordinated with SPC to remove marginal risk due to capping and boundary layer moisture issues, although this was prior to the knowledge of potentially slightly cooler H7 temps as suggested by NUCAPS, and thus perhaps a weaker cap than forecasted.
235 PM EDT Wed Jun 16 2021 High pressure centered over the Upper Ohio Valley will provide our area with beautiful weather through Thursday.
1122 AM MDT Wed Jun 16 2021 High pressure will continue to dominate the weather pattern today. Model consensus continues to forecast the highest temperatures of the week over many locations this afternoon. Expect more convective buildups over the higher terrain of the San Juan mountains with mainly isolated showers and thunderstorms with gusty outflow winds expected near storms.
The cooler and drier air mass should give the opportunity for decent radiational cooling under mostly clear skies tonight, and low temperatures are expected to range from the lower to mid 60s in the morning.
Today Through Thursday Night High pressure aloft continues to be centered over the Four Corners region. This large area of high pressure is affecting the western two thirds of the country. Highs today and Thursday will be in the lower to mid 90s. Lows tonight and Thursday night will be in the lower 70s.
1058 AM CDT Wed Jun 16 2021 Abundant sunshine will prevail across central and southeast Illinois today with afternoon high temperatures in the lower to middle 80s. High pressure will dominate the weather across central Illinois today. The dominant upper level ridge that brought record heat to the western US this week breaks down on Thursday as an upper wave moves into the Canadian Prairie.
231 PM MDT Wed Jun 16 2021 Following the cold front early this morning conditions have been considerably cooler than yesterday. The main concern with this is that when combine with the low relative humidity, fire concerns will again be elevated.
235 PM MDT Wed Jun 16 2021 As high pressure continues to build into the region from the northwest and the post-frontal pressure gradient eases a bit, the stronger winds and gusts from this morning are very gradually diminishing this afternoon.
952 AM EDT SUN OCT 25 2015 HIGH PRESSURE WILL BRING DRY CONDITIONS AND SEASONAL TEMPERATURES BEFORE THE NEXT FRONTAL SYSTEM IMPACTS THE AREA THROUGH THE MIDDLE OF THE WEEK. NOW JUST WAITING FOR THE LOW-LEVEL MOISTURE TO FOLLOW. LOW TEMPERATURES EARLY MONDAY MORNING WILL BE AROUND 20 DEGREES COOLER ON AVERAGE WITH CLEAR SKIES AND LIGHT WINDS SETTING THE STAGE FOR A DECENT RADIATIONAL COOLING NIGHT. SUNNY CONDITIONS WILL CONTINUE THROUGH DAY ON MONDAY AS HIGH PRESSURE CENTERED NORTH OF THE FORECAST AREA CONTINUES TO TRANSITION EAST.
WE HAVE SHORT WAVE RIDGING AHEAD OF THE SPLIT FLOW TROUGH MOVING OVER THE WEST COAST. 500MB HEIGHT FALLS FROM SPLIT TROUGH MOVE ACROSS REGION. SO THE HIGHER POPS CURRENTLY IN PLACE FOR THE EASTERN ZONES CONTINUES TO LOOK GOOD AND IS SUPPORTED BY THE MAIN DETERMINISTIC MODELS.
1115 AM EDT SUN OCT 25 2015 HIGH PRESSURE WILL WEAKEN AND MOVE OFF SHORE TODAY. A COLD FRONT WILL CROSS THE AREA TONIGHT.
PROGRESSING TO THE LOWER 60S ALONG THE I40 CORRIDOR.
820 AM EDT SUN OCT 25 2015 A COLD FRONT WILL SOUTHEAST OF THE REGION TODAY.
FRONTAL BOUNDARY SHARPENS UP DURING THE DAY MONDAY AND PUSHES SOUTHWEST THROUGH THE AREA AS HIGH PRESSURE WEDGES DOWN THE LEE OF THE APPALACHIANS INTO THE STATE. UPPER LOW OVER THE SOUTHERN PLAINS AND WESTERN GULF COASTAL REGION LIFTS TOWARD THE REGION THROUGH THE PERIOD BUT IS DEPICTED AS WEAKENING DURING THE PROCESS BY MOST MEDIUM RANGE MODELS.
HIGH PRESSURE IS CENTERED OVER NORTHEAST KS/NW MO WITH THE RIDGE EXTENDING INTO THE TX PANHANDLE. TEMPS TODAY SHOULD BE A COUPLE DEGREES WARMER THAN SAT AS WE GET SOME MORE SUNSHINE WITH TEMPS MON ALSO SIMILAR. FEEL CONFIDENT THAT THE MORE WIDESPREAD PRECIP WILL STAY EAST AND NORTHEAST OF THE FORECAST AREA WITH THIS TROUGH. STRENGTHENING LOW PRESSURE OVER THE WESTERN HIGH PLAINS WILL RESULT IN MODEST EAST/SOUTHEAST WINDS BY MID TO LATE MORNING.
MOST SPOTS /EXCEPT PERHAPS THE NORTHWEST ZONES WHERE LIGHT SOUTHERLY WINDS WILL RETURN/ WILL LIKELY SEE TEMPERATURES A COUPLE OF DEGREES COOLER THAN THIS MORNING. AN ACCOMPANYING INCREASE IN WESTERLY MOMENTUM WILL NUDGE THE SURFACE RIDGING EAST RESULTING IN SLIGHTLY WARMER TEMPERATURES.
1041 AM EDT SUN OCT 25 2015 HIGH PRESSURE WILL PROVIDE FOR DRY AND SEASONABLE CONDITIONS TODAY THROUGH MONDAY.
AN UPPER TROUGH OVER THE OFFSHORE WATERS THIS MORNING BRINGING WIDESPREAD RAIN TO WESTERN WASHINGTON.
WITH HIGH PRESSURE OVERHEAD. SUBJECTIVE 00Z UPPER AIR ANALYSIS INDICATES UPPER-LEVEL DEEP TROUGH CENTERED OVER TX. AND NORTHERN STREAM TROUGH OVER ONT INTO THE GREAT LAKES. WITH COLD FRONT FROM THERE THROUGH MI/IN/IL/SOUTHERN MO.
COLD FRONT HAS CLEARED OUR AREA, WITH POST-FRONTAL LOW CLOUDS NOW IN PLACE OVER THE AREA.
WILL SEE A BROADER UPPER TROF MOVE INTO THE NORTHERN ROCKIES MONDAY.
UPPER LEVEL TROUGH IS MOVING INTO THE PACIFIC NORTHWEST TODAY. CLOUD ENHANCEMENT AND RAIN INCREASING OVER WESTERN OREGON ASSOCIATED WITH THE NEGATIVE TILT TROUGH AND SHORT WAVE.
CONVERGENCE ALONG A COASTAL TROUGH AXIS OFFSHORE OF THE SE GA AND FL ATLANTIC COASTS WAS PRODUCING CLUSTERS OF SCATTERED SHOWERS THIS MORNING. TEMPS WERE ALREADY IN THE LOW/MID 70S INLAND. THE NMM/ARW INITIALIZED WELL THIS MORNING WITH PRECIP OFFSHORE AND LEANED TOWARD A BLEND OF THESE SOLUTIONS WHICH ADVERTISES THE TROUGH SHIFTING TOWARD THE COAST INTO THE AFTN/EVENING HOURS AS HIGH PRESSURE NE OF THE WATERS SHIFTS FARTHER ESE AND SHUNTS THE TROUGH AXIS WESTWARD. TEMPS WERE ON TRACK TO BE A TAD WARMER THAN YESTERDAY WITH MID/UPPER 80S INLAND TO LOW/MID 80S COAST.
QUITE A RARE SIGHT TO OBSERVE A 998 MB NON-TROPICAL LOW PRESSURE AREA IN THE NORTHWEST GULF OF MEXICO (SOUTHEAST OF GALVESTON). A BAND OF LIGHT RAIN CURRENTLY AFFECTING THE EASTERN PORTIONS OF THE CWA IS ASSOCIATED WITH THE COMMA HEAD PORTION OF THIS LOW. ALSO LOWERED TEMPS FOR THE EASTERN AREAS DUE TO THE SLOWER EROSION OF THE CLOUDS AND A COOLER THAN EXPECTED BOUNDARY LYR. OF WORTHY NOTE IS THAT SVRL OF THE HIGHER OIL PLATFORMS HAVE RECENTLY GUSTED TO 51-53 KNOTS WITHIN THE PAST HOUR.
UPPER LVL S/WV TROUGH AXIS OVER NORTHERN MEXICO/TEXAS WILL MOVE EAST AWAY FROM THE REGION THROUGH THE DAY WITH DRIER AIR RETURNING TO SOUTH TEXAS. IN THE WAKE OF THE COLD FRONT THAT PASSED OVERNIGHT COOLER TEMPERATURES CAN BE EXPECTED TODAY. AND TEMPERATURES WILL BE A FEW DEGREES WARMER.
AN AREA OF LOW PRESSURE WILL MOVE ONSHORE TODAY BRINGING CONSIDERABLE HIGH CLOUDS TO THE REGION TODAY.
THE AIRMASS ASSOCIATED WITH THE HIGH IS QUITE DRY WITH LITTLE CLOUDINESS EXPECTED THROUGH THE DAY.
DRY AND COOLER CONDITIONS WILL PREVAIL TODAY AND TOMORROW AS HIGH PRESSURE STRENGTHENS OVER CENTRAL INDIANA.
734 AM EDT SUN OCT 25 2015 VFR CONDITIONS THIS MORNING WILL GRADUALLY GIVE WAY TO MVFR CONDITIONS AS CIGS/VIS LOWER FROM SCT -RA/SHRA THAT WILL INFILTRATE THE REGION FROM AN APPROACHING LOW PRESSURE SYSTEM AND COLD FRONT.
LIGHT RAIN SHOWERS WILL PERSIST ACROSS THE I-35 TERMINALS THROUGH 17Z/18Z AS A COASTAL LOW PRESSURE SYSTEM MOVES ACROSS THE CORPUS CHRISTI COASTAL WATERS. REMNANTS OF PATRICIA WILL CONTINUE TO FILTER ACROSS THE MEXICAN PLATEAU AND REINFORCE A COASTAL TROUGH OVER THE NW GULF TODAY. TRACKING THE RAPID REFRESH MODELS OVER THE PAST SEVERAL HOURS WOULD SUGGEST THAT RAINFALL RATES ON THE UPSTREAM SIDE OF THE LOW TO MID LEVEL CYCLONE WILL REMAIN LIGHT TO MODERATE AND WELL BELOW SOME OF THE SYNOPTIC MODEL QPF SUGGESTIONS OF NEAR 1 INCH. BUT WILL EXPECT THE EASTWARD SHIFT TO HELP THE LOW LEVEL WINDS TO RELAX SOME BY 15Z. BUT A FAIR AMOUNT OF MID-LEVEL CLOUDS/MOISTURE COULD STILL LEAK OUT OF THE HIGHER TERRAIN TO THE SW.
707 AM EDT SUN OCT 25 2015 AVIATION AN AREA OF HIGH PRESSURE CENTERED OVER IOWA WILL BUILD INTO THE GREAT LAKES REGION TODAY AND TONIGHT.
A NORTHWEST TO SOUTHEAST TEMPERATURE GRADIENT MAY SET UP AS LOW CLOUDS MAY KEEP TEMPERATURES WARMER SOUTHEAST OF I-44.
920 AM EDT SUN OCT 25 2015 HIGH PRESSURE SURFACE AND ALOFT WILL CONTINUE TO HOLD OVER WEST CENTRAL AND SOUTHWEST FLORIDA. AN AREA OF LOW PRESSURE LOCATED OVER THE NORTHWEST GULF OF MEXICO IS PRODUCING AN EXTENSIVE AREA OF HIGH CLOUDINESS OVER THE CENTRAL AND EASTERN GULF OF MEXICO WHICH IS ALSO ADVECTING ACROSS THE FLORIDA PENINSULA. OTHERWISE THE U/L RIDGE WILL CREATE STRONG SUBSIDENCE AND ABOVE NORMAL TEMPERATURES ACROSS THE FORECAST AREA THIS AFTERNOON WITH TEMPERATURES CLIMBING TO WITHIN A DEGREE OR TWO OF RECORD HIGHS FOR THE DATE IN MANY AREAS.
HIGH HIGH PRESSURE WILL PULL AWAY TO THE EAST MONDAY.
1113 AM EDT SUN OCT 25 2015 NORTHWEST FLOW WILL FOLLOW BEHIND A COLD FRONT EXITING SOUTHEASTERN PENNSYLVANIA THIS AFTERNOON.
AN UPPER TROUGH ALONG THE PACNW COAST WILL SPREAD SHOWERS IN FAR WESTERN HARNEY/BAKER COUNTIES LATE THIS AFTERNOON. UPPER LOW IN THE PACIFIC OFF OREGON 42/131 IS FORECAST TO MERGE WITH ANOTHER LOW IN THE QUEEN CHARLOTTES TODAY. ASSOCIATED TROUGH WILL TAKE ON A NEGATIVE TILT AS IT PIVOTS AROUND THE SRN LOW.
Plan on more clouds this morning across the entire area but as high pressure builds across the north, we should see some thinning of the high clouds across southern Indiana and northern KY, giving filtered sunshine. Generally cooler readings are on tap, mainly in the low/mid 60s with a steady north wind. The cold front has pushed through the area this morning, though the drier air continues to linger a bit behind it. With northerly winds advecting in cooler air, temperatures today will top out only in the lower to mid 60s. In the north temps will bottom out in the low 40s while areas near the KY/TN border will only dip into the low 50s.
IN THE INCREASING SOUTHERLY FLOW TEMPERATURES WILL BE A TOUCH WARMER TODAY. EXCEPTION WILL BE FAR WEST LATE MONDAY NIGHT WHERE A FEW LIGHT SHOWERS OR SPRINKLES COULD BEGIN IN ADVANCE OF UPPER TROUGH SWINGING THROUGH THE WESTERN DAKOTAS.
/ISSUED 453 AM CDT SUN OCT 25 2015/ THIS MORNING A COLD FRONT BI-SECTING THE FORECAST AREA FROM AEX TO BPT. THIS FRONT EXTENDS WELL TO THE SOUTH INTO THE WESTERN GULF WHERE LOW PRESSURE CONTINUES TO DEEPEN ON THE FRONT. WINDS WILL ALSO INCREASE TODAY AHEAD OF THE LOW PRESSURE.
/ISSUED 635 AM CDT SUN OCT 25 2015/ /12Z TAFS/ A few light showers should diminish and MVFR Cig should improve to VFR at KBBD by noon as the upper trough moves east of the area.
A WEAK COLD FRONT MOVED THROUGH THE FORECAST AREA THIS MORNING. THE UPPER LEVEL HIGH IN THE GULF WILL CONINUE TO SHIFT EAST AS THE REMNANTS OF HURRICANE PATRICIA MOVE ACROSS THE NORTHERN GULF AS A CUT OFF LOW. THE GRADIENT OF POPS FOR TODAY IS GREATEST FROM WEST TO EAST AS NW AL IS ON THE WESTERN EDGE OF THE RIDGE.
EARLY VISIBLE SATELLITE PHOTOGRAPHS SHOW SKIES RANGE FROM MOSTLY SUNNY IN THE MIDDLE AND UPPER KEYS TO VARIABLY CLOUDY IN THE LOWER KEYS. A LENGTHY RIDGE OF HIGH PRESSURE EXTENDS FROM THE UPPER MIDWEST STATES. LOW PRESSURE (1003 MB) IS TAKING SHAPE OVER THE EXTREME NORTHWEST GULF COAST REGION. TO ACROSS THE LOWER KEYS AND SOUTHEASTWARD WILL PROVIDE WIDELY SCATTERED SHOWERS ALONG THE LOWER KEYS FOR THE BALANCE OF THIS MORNING AND INTO EARLY THIS AFTERNOON.
UPPER LEVEL TROUGH OVER WAS ROTATING ACROSS ONTARIO HAS SENT A COLD FRONT INTO THE AREA AND HAS STALLED OVER THE SOUTHERN RED RIVER VALLEY. WATER VAPOR INDICATED ANOTHER SHORT WAVE TROUGH OVER SOUTHERN ALTA. UPPER LOW/JET STREAK THEN DIGS INTO SOUTHERN MAN AT 84 HOURS AND IS EXPECTED TO INTENSIFY AFTER THIS PERIOD.
1230 PM EDT SUN OCT 25 2015 A COLD FRONT WILL APPROACH THIS MORNING AND CROSS THE REGION THIS AFTERNOON.
TEMPERATURES ARE GENERALLY IN THE LOW TO MID 40S WITH A FEW LOCATIONS IN THE UPPER 30S. A HIGH PRESSURE IS CENTERED OVER CENTRAL KANSAS. ZONAL FLOW IS TAKING SHAPE OVER THE HIGH PLAINS. SLIGHTLY WARMER WEATHER IS FORECAST TODAY AS A RESULT OF WARM AIR ADVECTION WITH THE SOUTHERLY WINDS. AROUND 3 TO 5 DEGREES WARMER THAN YESTERDAY. LIGHT SOUTHWEST WINDS THIS MORNING BECOME SOUTH AT 10-20 MPH BY LATE MORNING AS A LEE TROUGH BEGINS DEEPENING TO THE WEST. THE INCOMING TROUGH CURRENTLY MAKING LANDFALL IN NORTHERN CALIFORNIA SPREADS ACROSS THE HIGH PLAINS.
Cloud cover will remain thickest across these same areas keeping temps slightly cooler than areas further north and west.
/ISSUED 527 AM CDT SUN OCT 25 2015/ DEEPENING LOW PRESSURE OVER THE NORTHERN GULF ADVECTING VERY HEAVY RAINFALL TOWARDS THE COASTLINE. UPPER TROUGH CLOSED OFF.
WILL BE A LITTLE STRONGER IN THESE AREAS WEST OF THE RIDGE AXIS. HIGH TEMPS ACROSS THE AREA WILL BE A FEW DEGREES WARMER THAN YESTERDAY. DRIER AIR WILL MIX DOWN TO THE SURFACE TODAY DUE TO SUBSIDING AIR BENEATH A WEAK RIDGE OF HIGH PRESSURE.
/issued 334 AM CDT SUN OCT 25 2015/ Upper trough over the region early today will be moving east as brief upper ridging takes hold. Will have a weak trough move across late Monday but go right back into ridging.
735 AM EDT SUN OCT 25 2015 A COLD FRONT WILL SOUTHEAST OF THE REGION TODAY.
807 AM EDT SUN OCT 25 2015 A LOW PRESSURE SYSTEM IN THE WESTERN GULF WILL MOVE TO THE NORTHEAST THROUGH THE DAY. /ISSUED 256 AM EDT SUN OCT 25 2015/ HIGH PRESSURE OVER THE SOUTHEASTERN UNITED STATES WILL MOVE SLOWLY EAST INTO THE WESTERN ATLANTIC WATERS TODAY INTO MONDAY. AS THE HIGH CONTINUES TO MOVE FURTHER EAST INTO THE ATLANTIC WATERS. THE LOW WILL CONTINUE TO MOVE NORTHEAST INTO THE GREAT LAKES LATE THIS WEEK PUSHING A COLD FRONT SOUTHWARD AND THROUGH SOUTH FLORIDA. AS HIGH PRESSURE BUILDS INTO THE SOUTHEASTERN UNITED STATES.
1202 PM EDT SUN OCT 25 2015 HYDRO AN AREA OF HIGH PRESSURE CENTERED OVER IOWA WILL BUILD INTO THE GREAT LAKES REGION TODAY AND TONIGHT.
THE COLD FRONT SAGS SOUTH HALF WAY THROUGH THE FCST AREA. AS A BOUNDARY PIVOTS THROUGH WITH THE INVERTED TROUGH.
MOISTURE AHEAD OF AN UPPER LEVEL LOW PRESSURE TROF TO THE WEST IS MOVING ACROSS THE ROCKIES AND BRINGING MID TO UPPER LEVEL CLOUDS TO THE REGION.
635 AM CDT SUN OCT 25 2015 /12Z TAFS/ A few light showers should diminish and MVFR Cig should improve to VFR at KBBD by noon as the upper trough moves east of the area.
By sunrise, some areas, particularly valleys in the central part of the forecast area, may flirt with the freezing mark while the hills in north central and east central KS that can maintain a breeze will only drop to around 40. Meanwhile an upper low over the gulf coast will lift northward and become an open wave.
AND A BROAD UPPER LEVEL TROUGH APPROACHING THE MID STATE AS TUE PROGRESSES ALSO. THEN ONLY LIGHT SHWRS EXPECTED ACROSS ERN PORTIONS OF THE AREA WED NIGHT PER ANOTHER SLUG OF UPPER LEVEL MOISTURE FROM THE NW ROTATING AROUND THE BASE OF THE UPPER LEVEL TROUGH AND INTO THE REGION. ALONG WITH UPPER LEVEL TROUGHING INFLUENCES FINALLY PUSHING E OF THE MID STATE BY LATE AFTERNOON HRS ON THU. ALLOWING BUILDING UPPER LEVEL RIDGING INFLUENCES PER DEEP UPPER LEVEL TROUGHING DEVELOPING ACROSS THE CNTRL GREAT BASIN. HIGHS WILL BE IN THE MID TO UPPER 60S WITH LOWS GENERALLY IN THE LOW TO MID 40S.
RESULTING IN TROUGHING ALONG THE EAST COAST RELAXING AND MOVING NORTHWARD. AS HIGH PRESSURE MOVES IN FROM THE WEST. AND DEVELOP AN UPPER LOW OVER THE SW LATE THIS WEEK.
A flat ridge will eek in from the southern Rockies today. At the sfc, weak high plains lee troughing will strengthen through the day.
WC and NW AR into the first part of the work week as the upper low along the TX gulf coast lifts northeast and weakens.
909 AM EDT SUN OCT 25 2015 A COLD FRONT WILL APPROACH THIS MORNING AND CROSS THE REGION THIS AFTERNOON.
FOR THE HIGH COUNTRY. HIGH CLOUDS WILL GRADUALLY SPREAD ACROSS COLORADO AHEAD OF THE TROUGH STILL OFF THE WEST COAST. IT MAY NEED TO BE EVEN WARMER DUE TO THE CLOUDS BUT WILL LEAVE IT ALONE FOR NOW. AN UPPER LEVEL TROF OVR EASTERN UT/WRN WY AT 12Z WILL MOVE ACROSS NORTHERN COLORADO THROUGH THE EVENING. THE MDLS SHOW SOME WEAK MID/UPPER LEVEL QG ASCENT AS THE TROUGH AXIS PASSES ACROSS THROUGH 18Z MONDAY WITH DECREASING QG ASCENT IN THE AFTN. WL KEEP SCT/NMRS POPS IN THE HIGH COUNTRY. THERE APPEARS TO BE A BRIEF BREAK AFTER 06Z AS THE TROF AXIS SHIFTS TO THE EAST AND ANOTHER WEAK SYSTEM DROPS OUT THE NORTHERN ROCKIES.
DRY AND WARMER WEATHER IS EXPECTED THROUGH THIS AFTERNOON AS HIGH PRESSURE AFFECTS THE REGION.
1227 PM EDT SUN OCT 25 2015 HIGH PRESSURE WILL BRING DRY CONDITIONS AND SEASONAL TEMPERATURES BEFORE THE NEXT FRONTAL SYSTEM IMPACTS THE AREA THROUGH THE MIDDLE OF THE WEEK. TONIGHT THE CLEAR SKIES AND DECOUPLING OF THE LOWER ATMOSPHERE WILL ENHANCE RADIATIONAL COOLING. LOW TEMPERATURES EARLY MONDAY MORNING WILL BE AROUND 20 DEGREES COOLER ON AVERAGE. SUNNY CONDITIONS WILL CONTINUE THROUGH DAY ON MONDAY AS HIGH PRESSURE CENTERED NORTH OF THE FORECAST AREA CONTINUES TO TRANSITION EAST.
835 PM PDT MON APR 27 2015 MOSTLY CLEAR SKIES AND ABOVE NORMAL TEMPERATURES WILL CONTINUE EARLY THIS WEEK WITH HIGH PRESSURE ALOFT. GRADUAL COOLING AND A RETURN OF THE MARINE LAYER IS EXPECTED FOR THE SECOND HALF OF THE WEEK AS WEAK LOW PRESSURE DEVELOPS. THE HIGH OF 93 AT FILLMORE WAS THE WARMEST HIGH TEMP. AN UPPER LEVEL RIDGE EXTENDING FROM OFF THE SRN CA COAST INTO CENTRAL AND NRN CA THIS EVENING WILL BUILD INTO SRN CA LATER TONIGHT AND TUE. A FLAT UPPER RIDGE WILL LINGER OVER SRN CA ON WED. WITH WEAK UPPER RIDGING EXPECTED FOR THU.
12Z MODELS ARE ALL IN GOOD AGREEMENT THAT THE MAIN PART OF THE SHORT WAVE TROUGH WITH THE UPCOMING SYSTEM WILL PASS BY TO THE NORTH. THE ONLY OTHER FORCING THAT LOOKS TO BE IN PLACE WITH THIS SYSTEM IS SOME WEAK FRONTOGENESIS IN THE 850-500 MB LAYER WITH THE PASSAGE OF THE COLD FRONT.
Main upper low responsible for yesterday/s severe weather in the Lone Star State beginning to slowly track to the east this afternoon with identifiable deformation band cloud axis lifting north across the CWA. latest sfc analysis continues to show a strengthening ridge axis extending south across the upper/mid-Mississippi Valley. and taking into account that tomorrow/s 925 and 850 temps are expected to be a degree or two warmer than today. Main upper low to continue tracking east across the southern Plains into the lower Mississippi Valley on Tuesday.
1000 PM EDT MON APR 27 2015 UPPER LEVEL LOW PRESSURE OVER THE AREA WILL MOVE OFF TO THE SOUTHEAST INTO TUESDAY THEN HIGH PRESSURE OVER LAKE SUPERIOR WILL BUILD SOUTHEAST OVER THE AREA TUESDAY AND WEAKEN.
702 PM CDT MON APR 27 2015 HIGH PRESSURE BUILDING SOUTH ACROSS THE NORTHERN PLAINS. MEANWHILE AN INVERTED TROUGH PERSISTS ALONG THE FRONT RANGE INTO WESTERN S DAKOTA. A LOW PRESSURE SYSTEM CONTINUES TO SLOWLY MOVE ACROSS THE SOUTHERN PLAINS TOWARDS THE SOUTHEAST CONUS. THE INVERTED TROUGH TO THE NORTHWEST WILL BEGIN TO PUSH EAST/SOUTHEAST OVERNIGHT INTO TOMORROW. TOMORROW THE TROUGH WILL CONTINUE TO PUSH SE ACROSS THE CWA. AN AMPLIFIED UPPER RIDGE AT THIS TIME WILL EXTEND FROM THE DESERT SOUTHWEST INTO SASKATCHEWAN CANADA WHILE AN AMPLIFIED TROUGH EXTENDS FROM THE GREAT LAKES REGION INTO THE LOWER MISSISSIPPI VALLEY.
745 PM EDT MON APR 27 2015 HIGH PRESSURE CONTINUES BUILDING INTO THE REGION AND WILL LINGER THROUGH TUESDAY.
FINALLY PUSHING A WEAK COLD FRONT THROUGH THE CWA. THE TEMPS WILL BE COOLER IN THAT AREA AND DROP INTO THE MID 30S WITH 40S FURTHER EAST WHERE CLOUDS WILL BE HANGING AROUND. HIGHS WILL BE A FEW DEGREES COOLER IN THE AREAS THAT GOT INTO THE 60S AND 70S TODAY BUT THE NORTHWESTERN TIER THAT IS SOCKED IN TODAY SHOULD BREAK OUT AND JOIN THE REST OF THE CWA RATHER THAN BEING STUCK IN THE 50S.
1007 PM EDT MON APR 27 2015 HIGH PRESSURE BUILDING INTO THE REGION AND WILL LINGER THROUGH TUESDAY.
THE PESKY UPPER LEVEL LOW OVER NORTHWEST TEXAS IS PROGGED TO SLIDE EAST INTO THE ARKLATEX BY TUESDAY AFTERNOON. UPPER LEVEL DISTURBANCES AROUND THE UPPER LOW ARE EXPECTED TO SET OFF INSTABILITY SHOWERS AND THUNDERSTORMS AROUND AEX. THE UPPER LOW PASSAGE TUESDAY EVENING WILL SPELL AN END TO THIS UNSTABLE AND INCLEMENT PATTERN. COOLER AND DRIER AIR WILL EVENTUALLY PUT AN END TO THE SVR WX AND PRECIP. EXPECTED LOWS IN THE LOWER 50S. DRAGGING A COLD FRONT THROUGH THE COASTAL WATERS.
WARM FRONT WILL BEGIN TO LIFT NORTH INTO THE EASTERN GULF TOWARD DAWN. AS A FRONT JUST SOUTH OF THE AREA BEGINS TO LIFT NORTH AS A WARM FRONT ON TUESDAY.
1115 PM CDT MON APR 27 2015 BROAD HIGH PRESSURE ACROSS THE MIDWEST AND WESTERN GREAT LAKES BROUGHT CLEAR SKIES AND LIGHT N/NE WINDS TO E IOWA/W ILLINOIS THROUGH THIS AFTN. TEMPS WERE IN THE LOW TO MID 60S AND DEWPOINTS WERE IN THE 30S. JUST SLIGHTLY WARMER INTO THE UPPER 60S WITH CONTINUED DRY CONDITIONS.
ANOTHER STEAMY AND VERY WARM EVENING IS UNDERWAY WITH TEMPERATURES IN THE LOWER 80S AND DEW POINT READINGS IN THE MID 70S. A WESTERN ATLANTIC RIDGE EXTENDS ACROSS THE SOUTH FLORIDA AND THE FLORIDA KEYS. WITH AN AREA OF LOW PRESSURE (1003 MB) ON THE SOUTHWEST GULF OF MEXICO. WITH LOW PRESSURE IN THE SOUTHWEST GULF OF MEXICO MOVING EAST NORTHEASTWARD.
1144 PM CDT MON APR 27 2015 CIGS TO REMAIN NEAR THE INTERFACE BETWEEN IFR AND MVFR THROUGH THE NIGHT WHILE LIGHT TO MODERATE RAIN SLOWLY DIMINISHES WITH THE EWD MOVEMENT AWAY FROM THE AREA OF A SLOW-MOVING UPPER LOW. /ISSUED 824 PM CDT MON APR 27 2015/ A LARGE SHIELD OF RAIN ASSOCIATED WITH A UPPER LOW MEANDERING ACROSS WEST TEXAS WILL CONTINUE TO PIVOT ACROSS THE SOUTH PLAINS REGION TONIGHT.
1009 PM EDT MON APR 27 2015 HIGH PRESSURE BUILDING INTO THE REGION AND WILL LINGER THROUGH TUESDAY.
High pressure will remain in control in the low levels while the upper low moving eastward through the Southern Plains will spread high clouds into the area. High pressure will be maintained in the low levels with a northeast-north component in the flow.
MAY SEE SOME LINGERING -PRECIP ACROSS CLL/UTS TERMINALS TUE AFTN AS UPPER LOW MOVES EWD ACROSS N TX.
58/ROSE /ISSUED 623 PM CDT MON APR 27 2015/ A CLOSED UPPER LOW OVER TEXAS WILL MOVE EASTWARD TONIGHT AND BECOME AN OPEN WAVE BY LATE TUESDAY AS IT INTERACTS WITH THE WESTERN EDGE OF TROUGHS TO THE NORTH AND NORTHEAST OF OUR AREA.
525 PM MDT MON APR 27 2015 LATEST WV IMAGERY AND RAP ANALYSIS SHOWS LARGE SCALE CLOSED UPPER LOW CENTERED OVER TX PANHANDLE WITH MID LEVEL VORTICITY ROTATING THROUGH OK/SOUTHER KS. GOOD RADIATION CONDITIONS SHOULD ALLOW FOR LOCATIONS IN OUR CWA TO REACH FREEZING (POSSIBLY LOWER) TONIGHT. H5 RIDGE CONTINUES TO BUILD EAST AND TEMPS ALOFT WILL MODERATE A LITTLE. H5/H7 RIDGE BUILDS OVER THE ENTIRE WESTERN PORTION OF THE COUNTRY TUESDAY NIGHT. WITH RIDGE AXIS EXTENDING EASTWARD INTO THE WESTERN PLAINS THRU MIDWEEK. MODELS TREND THIS RIDGE TO FLATTEN.