Aikyam-Lab/Synoptic-Bench huggingface dataset:
OTHERWISE A LARGE HIGH PRESSURE AREA WILL CONTINUE OVER NEW ENGLAND AND QUEBEC WITH ELY WINDS AND MO SUNNY SKIES EXPECTED OVER SRN WI. THE NRN PERIPHERY OF THE LARGE UPPER LOW OVER THE SE USA WILL MOVE INTO THE REGION. HIGH STRONG HIGH PRESSURE CENTERED WELL TO THE EAST OF WISCONSIN SHOULD KEEP IT DRY ACROSS THE FORECAST AREA THROUGH SUNDAY NIGHT. AND THUS DID NOT GO ANY WARMER THAN THE CONSENSUS BLEND OF MODELS.
AN UPPER TROUGH MOVING THROUGH THE EASTERN PACIFIC AND INTO THE WEST COAST WILL BRING A GRADUAL COOLING SUNDAY THROUGH MIDWEEK. SOME WARMING IS EXPECTED BY THE END OF THE WEEK AS AN UPPER RIDGE BUILDS INTO THE AREA AND WEAK OFFSHORE FLOW DEVELOPS. STILL EXPECT THE WARMER VALLEY LOCATIONS TO HAVE MAX TEMPS NEAR OR SLIGHTLY ABOVE 100 DEGREES TODAY.
TEMPERATURES SATURDAY WILL BE COOLER WITH HIGHS DOWN ABOUT 5-10 DEGREES FROM TODAY.
147 AM EDT SAT SEP 26 2015 A LARGE AREA OF HIGH PRESSURE OVER EASTERN CANADA WILL MOVE SOUTHEAST OFF THE NEW ENGLAND COAST ON SUNDAY. LOW PRESSURE ACROSS THE SOUTHEASTERN STATES WILL WEAKEN AS IT DRAGS MOISTURE NORTHWEST INTO THE OHIO VALLEY OVER THE WEEKEND. UPPER LEVEL LOW PRESSURE OVER TN IS HELPING TO DRAW HIGHER LEVEL MOISTURE NW INTO OUR AREA TONIGHT. THE HIGH CLOUDS WILL ACT AS A BLANKET TO LIMIT RADIATIONAL COOLING SO TEMPS WILL REMAIN WARMER TONIGHT WITH LOW MOSTLY IN THE MID TO UPPER 50S. NEAR TERM TREND WILL CONTINUE INTO THE SHORT TERM WITH HIGH LEVEL AND EVENTUALLY MID LEVEL MOISTURE INCREASING FROM THE SOUTH AS THE WEAKENING UPPER LOW REACHES THE LOWER OHIO VALLEY.
UPPER LOW OVER THE REGION WILL WEAKEN AND DRIFT NORTHWEST.
1132 PM MDT FRI SEP 25 2015 UPDATED AVIATION DISCUSSION CURRENT SATELLITE IMAGERY SHOWS A VERY WEAK TROF AND ACCOMPANYING MOISTURE MAKING THEIR WAY THRU THE HILINE AND CENTRAL COUNTIES.
430 AM EDT SAT SEP 26 2015 HIGH PRESSURE WILL REMAIN IN CONTROL OF WEATHER CONDITIONS ACROSS THE NORTH COUNTRY OVER THE WEEKEND BRINGING COOL NIGHTS AND PLEASANTLY WARM AND DRY DAYTIME CONDITIONS.
635 AM EDT SAT SEP 26 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW AN UPPER LOW WILL BRING LOW CHANCES FOR VERY LIGHT RAIN TO THE AREA ALONG WITH COOLER TEMPERATURES THROUGH THE WEEKEND.
436 AM EDT SAT SEP 26 2015 AN UPPER LEVEL LOW OVER THE TENNESSEE VALLEY WILL WEAKEN AS IT SLOWLY LIFTS NORTH ACROSS THE REGION THROUGH THE WEEKEND.
619 AM EDT SAT SEP 26 2015 AN UPPER LOW OVER THE SOUTHERN APPALACHIANS WILL WEAKEN AS IT SLOWLY LIFTS NORTH THIS WEEKEND.
AN UPPER LEVEL LOW PRESSURE AREA CURRENTLY SPINNING OVER NORTHEAST KANSAS IS FORECAST MOVE SOUTHWEST TONIGHT REACHING WEST CENTRAL OKLAHOMA BY MORNING. DURING THE AFTERNOON HOURS THE LOW CONTINUES SOUTH-SOUTHWEST WITH A SHARP UPPER RIDGE AXIS JUST WEST OF THE AREA.
TEMPERATURES AND DEW POINTS WERE IN THE LOW TO MID 60S ACROSS THE AREA. THE MID/UPPER LEVEL LOW PRESSURE SYSTEM RESPONSIBLE FOR THE SHOWERS WILL CONTINUE TO LIFT SLOWLY NORTHWARD. THE UPPER LOW WILL CONTINUE TO MOVE AWAY. FEWER SHOWERS AND A LITTLE THINNING OF THE CLOUD COVER WILL ALLOW TEMPS TO CLIMB A FEW DEGREES WARMER ON SUNDAY.
BROAD UPPER LOW OVER TN AND WESTERN NC WILL MERGE WITH MAIN UPPER TROF STRETCHING FROM THE MID MS RIVER VALLEY TO THE WESTERN GULF AND EAST TX LATER TODAY AND TONIGHT LEADING TO ANOTHER BROAD UPPER LOW FORMING OVER EAST TX AND THE WESTERN GULF BY EARLY SUN MORNING. AS FOR TEMPS WILL LEAN TOWARDS THE WARMER MAV GUIDANCE THROUGH TONIGHT LEADING TO HIGH TEMPS RANGING FROM THE MID TO UPPER 80S FOR MOST INLAND AREAS AND THE MID 80S CLOSER TO THE COAST. LOWS TONIGHT WILL RANGE FROM THE MID TO UPPER 60S INLAND AND THE LOWER 70S CLOSE TO THE COAST.
335 AM CDT SAT SEP 26 2015 EAST TO SOUTHEAST FLOW DERIVED FROM LARGE HIGH PRESSURE OVER THE NORTHEAST CONUS WILL BE IN PLACE ACROSS IOWA TODAY.
TEMPERATURES WILL BE IN THE 70S AND 80S ON SATURDAY AND SUNDAY AS LOW LEVEL WAA KICKS IN AMID LOW LEVEL RETURN FLOW PRESSURE PATTERN. A DRY COLD FRONTAL PASSAGE IS STILL ON SCHEDULE RIGHT NOW FOR SUNDAY/SUNDAY NIGHT. SO CONTINUED WITH THE LOW END SLT CHANCE AND CHANCE POPS ACROSS PORTIONS OF CENTRAL AND NORTH CENTRAL SOUTH DAKOTA.
/issued 357 AM CDT SAT SEP 26 2015/ A broad upper ridge remains over most of the conus with an upper low over the southeastern U. This will bring an increase in upper lift and chances of rain and storms to the Permian Basin, Western Low Rolling Plains, and the Lower Trans Pecos.
315 AM EDT SAT SEP 26 2015 AN UPPER LEVEL LOW REMAINS OVER THE SOUTHERN APPALACHIANS THIS MORNING WITH POCKETS OF RAIN CONTINUING TO WRAP AROUND ACROSS THE SOUTHEAST. AS THE UPPER LEVEL LOW LIFTS INTO SOUTH CENTRAL KENTUCKY THIS MORNING. EXCEPT THE UPPER LEVEL LOW LIFT FARTHER NORTH. AS THE LOW CONTINUES TO EXIT SUNDAY. VFR CONDITIONS HAVE SPREAD BACK INTO EASTERN KENTUCKY WITH EAST/SOUTHEAST DOWNSLOPING FLOW OFF THE HIGHER PEAKS OF THE APPALACHIANS. THIS WILL KEEP THE LOW CIGS FROM AFFECTING MUCH OF THE AREA THROUGH THE MORNING HOURS.
422 AM EDT SAT SEP 26 2015 HIGH PRESSURE ACROSS EASTERN CANADA WILL BUILD INTO NEW ENGLAND THIS WEEKEND.
CONTINUING TO EXPECT BLUSTERY SOUTHERLY WINDS DURING THE AFTERNOON AND EVENING OUT AHEAD OF AN INCOMING COLD FRONT. WIND SHOULD DECREASE SUNDAY AS THE DRY COLD FRONT WORKS ITS WAY ACROSS THE CWA.
429 AM CDT SAT SEP 26 2015 NORTHEAST UPPER FLOW SHOULD BE ANYTHING BUT UNEVENTFUL TODAY AS A WELL- DEFINED VORT MAX/DECAYING UPPER LOW ARRIVES FROM NW OKLAHOMA. NAM AND GFS POINT SOUNDINGS INDICATE VIRTUALLY NO CIN THIS AFTERNOON UNDER THE TROUGH. WEAK CYCLONIC FLOW WILL LINGER BEHIND THE DEPARTING TROUGH WITH SOME VORTICITY FILAMENTS FOCUSING IN THE ROLLING PLAINS.
623 AM EDT SAT SEP 26 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION OVERNIGHT THROUGH THE WEEKEND.
1021 PM PDT FRI SEP 25 2015 Clouds will stream into Eastern Washington and Northern Idaho tonight into Saturday with a weakening cold front. We can expect cooler, more seasonal temperatures this weekend, and a bit of light rain.
1210 AM CDT SAT SEP 26 2015 FOR 06Z TAFS /ISSUED 940 PM CDT FRI SEP 25 2015/ WATER VAPOR IMAGERY THIS EVENING SHOWS THE UPPER LEVEL LOW IS NOW CENTERED OVER THE TN/AL/GA BORDER. THE WEAK LIFT ASSOCIATED WITH THE SYSTEM AND THE LOW LEVEL MOISTURE SHOULD ALLOW FOR CONTINUED ON AND OFF LIGHT SHOWERS/DRIZZLE FOR THE TN VALLEY TONIGHT. TEMPERATURES TONIGHT SHOULD HOLD STEADY IN THE LOWER 60S. LOW PRESSURE SYSTEM OVER THE REGION WILL SLOWLY LIFT NORTH TONIGHT AND THE LOWER CIGS AND VIS ACROSS NORTHWESTERN GA WILL MOVE INTO NE ALABAMA.
658 AM EDT SAT SEP 26 2015 HIGH PRESSURE WILL REMAIN IN CONTROL OF WEATHER CONDITIONS ACROSS THE NORTH COUNTRY OVER THE WEEKEND BRINGING COOL NIGHTS AND PLEASANTLY WARM AND DRY DAYTIME CONDITIONS.
327 AM EDT SAT SEP 26 2015 HIGH PRESSURE WILL BUILD ACROSS THE REGION OVERNIGHT THROUGH THE WEEKEND.
357 AM CDT SAT SEP 26 2015 A broad upper ridge remains over most of the conus with an upper low over the southeastern U. This will bring an increase in upper lift and chances of rain and storms to the Permian Basin, Western Low Rolling Plains, and the Lower Trans Pecos.
402 AM CDT SAT SEP 26 2015 A LARGE UPPER RIDGE REMAINS CENTERED OVER THE SWRN CONUS WHILE A BROAD TROUGH CONTINUES TO SLOWLY MOVE NORTH THROUGH THE SERN CONUS AND TOWARDS THE OHIO RIVER VALLEY.
549 AM CDT SAT SEP 26 2015 CURRENT WATER VAPOR SATELLITE ANIMATION DEPICTS POSITION OF UPPER LOW ACROSS NE ALABAMA/NW GEORGIA/SE TENNESSEE. LATEST MODELS ARE IN AGREEMENT IN FORECASTING THE UPPER LOW TO WEAKEN AND LIFT NORTHWARD ALONG THE CUMBERLAND PLATEAU TODAY. AND AS A LARGE UPPER LOW BEGINS TO CUT OFF ACROSS SOUTH TEXAS. HIGHS TODAY WILL REACH THE LOWER/MID 70S. WITH LOWS TONIGHT ONLY FALLING INTO THE LOWER/MID 60S. SHORT TERM NWP GUIDANCE SUGGESTS THAT THE SOUTH TEXAS UPPER LOW WILL BEGIN TO DEEPEN AND SHIFT SLOWLY EASTWARD ON SUNDAY NIGHT.
309 AM CDT SAT SEP 26 2015 Slightly above-average temperatures continue over the weekend thanks to broad upper-level ridging across the eastern U. This will also keep things generally dry, although a weakening westward-drifting upper low over the Tennessee Valley could produce a few showers over central Missouri on Sunday.
311 AM CDT SAT SEP 26 2015 Upper level low currently spinning over central Kansas and responsible for a couple of showers across Osage and Pawnee Counties at this hour will drop south across western Oklahoma Today. This upper level low will continue to weaken and become absorbed by a developing upper level low over the southeast Texas coast. The southeast Texas upper level low will be edged off to the east by mid-week as an upper level ridge builds across the Southern Plains.
WEAKENING UPPER LOW IS LOCATED NEAR KCHA. THE UPPER LOW NEAR KCHA WILL WEAKEN AND FILL AS IT GRADUALLY LIFTS NORTH INTO THE OHIO VALLEY TODAY AND TONIGHT. BY SUNDAY THE UPPER LOW WILL HAVE DISSIPATED NORTH OF THE REGION. THE ENERGY SLIDING SOUTH THROUGH THE SOUTHERN PLAINS COMBINES WITH SOME OTHER DISTURBANCES TO FORM A LARGE WEAK UPPER LOW OVER EAST TEXAS BY SUNDAY.
659 AM EDT SAT SEP 26 2015 AN UPPER LEVEL LOW OVER THE TENNESSEE VALLEY WILL WEAKEN AS IT SLOWLY LIFTS NORTH ACROSS THE REGION THROUGH THE WEEKEND.
422 AM CDT SAT SEP 26 2015 EARLY THIS MORNING TEMPERATURES WERE IN THE UPPER 60S NORTH TO THE LOWER 70S SOUTH. AN UPPER LEVEL LOW PRESSURE PATTERN IS NOW DEVELOPING OVER THE NORTHWEST GULF OF MEXICO AND SOUTHEASTERN TEXAS.
WATER VAPOR LOOPS AND MORNING UPPER-AIR ANALYSIS REVEAL AN ABUNDANCE OF VERY DRY MID- AND UPPER-LEVEL AIR IN PLACE OVER THE DESERT SOUTHWEST WITH OUR SYNOPTIC SCALE PATTERN DOMINATED BY A +1 TO +2 STANDARD DEVIATION AREA OF HIGH PRESSURE.
127 AM EDT SAT SEP 26 2015 HIGH PRESSURE ACROSS EASTERN CANADA WILL BUILD INTO NEW ENGLAND OVER THE WEEKEND.
141 AM EDT SAT SEP 26 2015 DRY WEATHER WILL CONTINUE UNDER HIGH PRESSURE INTO SUNDAY, PRODUCING WARM AND DRY EARLY FALL CONDITIONS.
A SLOW MOVING UPPER LOW NEAR CHARLOTTE NORTH CAROLINA WILL DRIFT NORTHWARD INTO THE OHIO VALLEY.
1209 AM MDT SAT SEP 26 2015 NEAR RECORD HIGH TEMPERATURES AND CLEAR SKIES WILL CONTINUE OVER THE NEXT FEW DAYS AS HIGH PRESSURE AND +13C 700 MB TEMPERATURES PERSIST.
HIGH TEMPERATURES TODAY WILL STILL CLIMB INTO THE LOWER AND MIDDLE 70S. UPPER LOW OVER TN VALLEY THIS MORNING WILL CONTINUE TO DRIFT NORTH AND WEAKEN WHILE EVENTUALLY BEING ABSORBED INTO MEAN WESTERLY FLOW. INCREASING CLOUDS TODAY WILL KEEP TEMPS A FEW DEGREES COOLER FROM PAST SEVERAL DAYS. HIGHS SHOULD STILL REACH THE LOWER TO MIDDLE 70S. MID LEVEL CIRCULATION OVER EASTERN TN WILL WEAKEN AND LIFT ENE THROUGH THE LOWER/EASTERN GREAT LAKES AS AN DISJOINTED OPEN WAVE BY SUNDAY.
308 AM EDT SAT SEP 26 2015 HIGH PRESSURE WILL CREST OVER THE REGION TODAY AND WILL SHIFT SOUTH INTO THE GULF OF MAINE TONIGHT. HIGH PRESSURE WILL GRADUALLY DRIFT OFF TO THE EAST SUNDAY.
WATER VAPOR IMAGERY THIS MORNING SHOWS THE MID/UPPER LEVEL LOW SPINNING OVER EAST CENTRAL TENNESSEE. AND REMAIN SO THROUGH THE WEEKEND AS THE LOW PROGRESSES FURTHER NORTHWARD INTO THE OHIO RIVER VALLEY WHILE WEAKENING. ANOTHER MID/UPPER LOW WILL DEEPEN ACROSS SOUTHEAST TEXAS. HIGH PRESSURE WILL REMAIN BUILT INTO THE CWA FROM THE NORTHEAST TODAY. THIS WILL BE IN RESPONSE TO THE BEFORE MENTIONED MID/UPPER LEVEL LOW DEEPENING OVER SOUTHEAST TEXAS.
A pretty weak cold front will brush through the region today and tonight. Much cooler temperatures this afternoon through Sunday.
REMNANT OF THE COLD FRONT ALSO BROUGHT MID LEVEL CLOUDS TO THE UMPQUA BASIN. TONIGHT A THERMAL TROUGH IS EXPECTED TO STRENGTHEN ALONG THE COAST WITH DRY OFFSHORE FLOW FOR THE UPPER SLOPES AND RIDGES OF SW OREGON.
351 AM MDT SAT SEP 26 2015 TILTED AND AMPLIFIED RIDGE CONTINUES TO COVER ERN UTAH AND WRN COLORADO THROUGH THE FORECAST PERIOD. BUT RIDGE SHOWS SOME WEAKENING ON SUNDAY. SUBSIDENCE LAYER ALOFT WILL NOT BE AS PROMINENT AND MAY ALLOW ONE/TWO STORMS TO POP OVER THE HIGH COUNTRY BY LATE SUNDAY AFTERNOON. ENERGY PASSING THROUGH THE NORTHERN ROCKIES ON SUNDAY WILL HELP TO SUPPRESS THE RIDGING OVER THE REGION. WITH COOLER WEATHER MOVING IN FOR THE WEEKEND. TEMPS WILL BE MORE IN LINE WITH THE WARMER EC MOS NUMBERS EARLY ON WITH GENERAL COOLING TREND TO CLOSE OUT THE WEEK. VFR PATTERN WILL REMAIN IN PLACE THROUGH SUNDAY MORNING UNDER A RIDGE OF HIGH PRESSURE CENTERED OVER THE SOUTHWEST U.
427 AM EDT SAT SEP 26 2015 AN UPPER LEVEL LOW REMAINS OVER THE SOUTHERN APPALACHIANS THIS MORNING WITH POCKETS OF RAIN CONTINUING TO WRAP AROUND ACROSS THE SOUTHEAST. AS THE UPPER LEVEL LOW LIFTS INTO SOUTH CENTRAL KENTUCKY THIS MORNING. EXCEPT THE UPPER LEVEL LOW LIFT FARTHER NORTH. AS THE LOW CONTINUES TO EXIT SUNDAY.
AN UPPER LEVEL LOW PRESSURE AREA CURRENTLY SPINNING OVER NORTHEAST KANSAS IS FORECAST MOVE SOUTHWEST TONIGHT REACHING WEST CENTRAL OKLAHOMA BY MORNING. DURING THE AFTERNOON HOURS THE LOW CONTINUES SOUTH-SOUTHWEST WITH A SHARP UPPER RIDGE AXIS JUST WEST OF THE AREA. UPPER RIDGE CENTERED OVER THE FOUR CORNERS WILL HOLD FIRM THROUGH MOST OF THE UPCOMING WEEK.
THE UPPER LOW OVER THE AREA WILL DRIFT NORTHWEST AND WEAKEN. BY TONIGHT PRECIP COVERAGE LOOKS MORE LIMITED AS UPPER LOW IS PULLING AWAY AND FILLING.
/ISSUED 311 AM CDT SAT SEP 26 2015/ Upper level low currently spinning over central Kansas and responsible for a couple of showers across Osage and Pawnee Counties at this hour will drop south across western Oklahoma Today. This upper level low will continue to weaken and become absorbed by a developing upper level low over the southeast Texas coast. The southeast Texas upper level low will be edged off to the east by mid-week as an upper level ridge builds across the Southern Plains.
1227 AM CDT SAT SEP 26 2015 Mid-level ridging extending from the southwestern US up to the northern plains will continue to steer a mid-level disturbance into Central Kansas and away from the CWA through the afternoon hours. This will also cause winds to back to the east northeast, which will lead to slightly cooler temperatures heading into the weekend. The mid-level ridge to the west will be the main influence of the pattern for both Saturday and Sunday with afternoon highs expected to top off in the high 70s to low 80s.
SUNDAY LIMITED MOISTURE IN THE SOUTHWEST FLOW IS EXPECTED TO SUPPORT THE DEVELOPMENT OF MOUNTAIN SHOWERS AND ISOLATED THUNDERSTORMS OVER THE MOUNTAINS WITH SOME MOVING OFF OF THE MOUNTAINS INTO THE LOWER ELEVATIONS.
452 AM EDT SAT SEP 26 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW AN UPPER LOW WILL BRING LOW CHANCES FOR VERY LIGHT RAIN TO THE AREA ALONG WITH COOLER TEMPERATURES THROUGH THE WEEKEND.
/ISSUED 700 PM EDT FRI SEP 25 2015/ CURRENT RADAR LOOP SHOWS SHOWERS AND SOME ISOLATED THUNDERSTORMS ROTATING AROUND LOW PRESSURE CENTERED JUST NORTH OF THE AL/TN/GA BORDER. THIS LOW CENTER IS EXPECTED TO CONTINUE MOVING NORTHWARD AS IT WEAKENS THROUGH SAT. AS THIS LOW MOVES N IT WILL PULL THE DEEPER MOISTURE NORTHWARD WITH IT ALSO. THE MODELS ARE IN GOOD AGREEMENT SHOWING THE UPPER LOW DRIFTING SLOWLY NEWD WITH STRONG LOW LEVEL MOISTURE TRANSPORT OFF THE ATLANTIC OVERRUNNING A LINGERING WEAK WEDGE. WEAK HIGH PRESSURE WILL BE IN CONTROL OF THE SENSIBLE WEATHER SUNDAY.
The broad upper level ridge will keep most of the moisture south and east of the region through the weekend. Dry weather to continue though upper ridge to flatten and then gradually break down as heights fall in association with a long wave progressing through Canada.
1127 PM MDT FRI SEP 25 2015 AN UPPER LEVEL LOW PRESSURE AREA CURRENTLY SPINNING OVER NORTHEAST KANSAS IS FORECAST MOVE SOUTHWEST TONIGHT REACHING WEST CENTRAL OKLAHOMA BY MORNING. DURING THE AFTERNOON HOURS THE LOW CONTINUES SOUTH-SOUTHWEST WITH A SHARP UPPER RIDGE AXIS JUST WEST OF THE AREA. UPPER RIDGE CENTERED OVER THE FOUR CORNERS WILL HOLD FIRM THROUGH MOST OF THE UPCOMING WEEK.
TODAY THROUGH SUNDAY NIGHT LONG WAVE RIDGE AXIS WILL REMAIN OVER THE NORTHERN PLAINS TODAY AND WILL BEGIN TO SHIFT EAST TONIGHT INTO SUN AS A DEEP WESTERN NOAM TROUGH SHIFTS EAST ACROSS SOUTHERN CANADA. SUPPORTING A COLD FRONT INTO THE REGION SUNDAY. NORTHERN STEAM TROUGH AND ITS SOUTHERN PERIPHERY IMPULSE MAY SUPPORT ENOUGH LIFT FOR A FEW SHRA SUNDAY NIGHT. WARMER DAY FORECAST ALL PLACES. WARMEST ON THE WY PLAINS WHERE PROXIMITY TO THE THERMAL RIDGE AND DEEP MIXING ARE EXPECTED TO SUPPORT 90S. MUCH COOLER TEMPS EXPECTED SUN NIGHT.
/issued 626 PM CDT FRI SEP 25 2015/ A few light showers around this evening will dissipate quickly with loss of heating and lack shrtwv trough. Into Sat PM there will be shrtwv trough and associated 55kt 3h jet that will serve to increase the chance for SHRA/TSRA, mostly n of I20. Isold SHRA/TSRA will be possible across Srn PB/Lower Trans Pecos Sun PM with a secondary mid level theta-e ridge axis.
THE MOISTURE COMBINED WITH DAYTIME INSTABILITY AND A MID/UPPER LEVEL LOW. KEPT THE HIGHER CHC POPS OVER THE COASTAL COUNTIES AND COASTAL WATERS.
918 AM CST THU DEC 3 2015 CURRENT WEATHER FORECAST IS ON TRACK WITH SUNNY/CLEAR SKIES AND EXPECTED WARMUP WITH HIGHS IN THE LOW TO MID 60S THIS FATERNOON. SURFACE TO UPPER LEVEL RIDGES SLOWLY SLIDE ACROSS SOUTH CENTRAL TEXAS. SOME SPOTS IN THE HILL COUNTRY WILL FALL TO NEAR OR SLIGHTLY BELOW FREEZING.
543 AM EST THU DEC 3 2015 LIGHT SNOW SHOWERS WILL TAPER OFF TODAY AS THE UPPER-LEVEL LOW PRESSURE SYSTEM MOVES OFF TO OUR EAST. HIGH PRESSURE WILL RETURN WARM AND DRY WEATHER FOR THE WEEKEND. EXPECT CLOUDLESS CONDITIONS TO PERSIST THROUGH THE BULK OF THE WEEKEND AS A BROAD AREA OF VERTICALLY-STACKED HIGH PRESSURE WILL SLOWLY PASS THROUGH THE REGION.
CHILLY MORNING ACROSS THE FOUR STATE REGION WITH PREDAWN TEMPERATURES RANGING FROM NEAR 40 DEGREES ALONG THE I-20 CORRIDOR TO THE LOWER 30S ACROSS SOUTHEAST OKLAHOMA AND ADJACENT SOUTHWEST ARKANSAS.
AS A COLD FRONT SAGS INTO THE REGION. OVERNIGHT HOURS INTO EARLY FRIDAY ARE LOOKING LIKE THE BEST PERIOD FOR HEAVY RAINFALL WITH JET FORCING AT A MAXIMUM AND INCREASING LAPSE RATES AS THE UPPER LEVEL TROUGH APPROACHES.
INCREASING WARM ADVECTION OVERNIGHT WILL SERVE TO INCREASE THE STRENGTH OF THE LOW-LEVEL INVERSION.
/ISSUED 255 AM CST THU DEC 3 2015/ EARLY MORNING WATER VAPOR SATELLITE IMAGERY SHOWED A LARGE UPPER TROUGH OVER THE GREAT LAKES REGION. BROAD RIDGING OVER THE CENTRAL CONUS. AND ANOTHER LARGE UPPER TROUGH JUST OFF THE WESTERN CONUS AND CANADIAN COAST. MORNING LOW TEMPERATURES WILL LIKELY START OUT AT OR BELOW FREEZING FOR MANY LOW-LYING RURAL AREAS WITH CLEAR SKIES AND ONLY LIGHT NORTHERLY WINDS IN PLACE ACROSS THE REGION. THIS TROUGH WILL SPREAD SOME LIFT OVER THE CWA AS IT MOVES THROUGH.
Highs will be warmer today in the middle 40s to near 50, generally near seasonal averages. A quick moving upper trough will move across the central CONUS during the weekend.
THE CLOUDS HELD EARLY MORNING TEMPERATURES UP IN THE LOW TO MID 30S.
TEMPS COULD GET WARMER OVER THE SNOW FIELD THAN WE CURRENTLY HAVE. A SERIES OF SHORT WAVE TROUGHS AND SHORT WAVELENGTH RIDGES WILL MOVE ACROSS THE AREA THROUGH THE PERIOD. SHORT WAVE TROUGH MOVING ACROSS CENTRAL MAN WILL PRODUCE WARM ADVECTION AHEAD OF SHORT WAVE THIS MORNING. ANOTHER SHORT WAVE TROUGH MOVES THROUGH FRI AFTERNOON AND A WIND SHIFT MOVES THROUGH SAT MORNING IN TOW. ANOTHER SHORT WAVE TROUGH TO MOVE THROUGH SAT EVENING. A BREAK IN THE HIGH CLOUDS WILL OCCUR LATE THIS MORNING WITH ANOTHER BAND UPSTREAM.
739 AM EST THU DEC 3 2015 ANY SNOW SHOWERS WILL TAPER OFF TODAY AS THE UPPER LEVEL LOW EXITS. HIGH PRESSURE WILL RETURN DRY WEATHER FOR THE WEEKEND. SCT SNOW SHOWERS SHOULD GRADUALLY DECREASE TODAY AS A DEEP UPPER LVL TROUGH ACROSS THE GREAT LAKES AND UPPER OH VALLEY REGION EXITS. EXPECT CLOUDLESS CONDITIONS TO PERSIST THROUGH THE BULK OF THE WEEKEND AS A BROAD AREA OF VERTICALLY-STACKED HIGH PRESSURE WILL SLOWLY PASS THROUGH THE REGION.
636 AM EST THU DEC 3 2015 THE COLD FRONT CONTINUES MOVING OFFSHORE WITH WITH HIGH PRESSURE ALONG WITH COOLER AND DRIER AIR ENTERING THE REGION. THE HIGH PRESSURE AND DRY CONDITIONS WILL PERSIST OVER THE REGION THROUGH THE WEEKEND. COLD FRONT WILL MOVE OFFSHORE THIS MORNING WITH HIGH PRESSURE BUILDING INTO THE REGION. COLD AIR ADVECTION WILL ALSO OVERTAKE THE AREA WITH HIGH TEMPERATURES TODAY RANGING FROM THE MIDDLE 50S IN THE NORTHERN MIDLANDS TO THE LOW 60S IN THE SOUTHERN CSRA. WITH WINDS DIMINISHING THIS EVENING AND MOSTLY CLEAR SKIES OVERNIGHT RADIATIONAL COOLING CONDITIONS WILL BE OPTIMAL ALLOWING TEMPERATURES TO FALL INTO THE LOWER TO MIDDLE 30S.
HIGH PRESSURE WILL RETURN FOR THE WEEKEND. A LOW PRESSURE CENTER OFF NRN CA WILL LIFT NE AND MOVE INLAND ACROSS OR/WA BORDER LATER THIS EVENING. TRAILING COLD FRONT WILL CROSS OUR REGION LATER THIS AFTERNOON AND EVENING BRINGING A FEW SHOWERS ACROSS THE SJV AND HIGHER ELEVATION SNOW. WE WILL CONTINUE TO STAY DRIER WITH THIS SYSTEM AS THE REGIONAL IR SATELLITE IMAGERY INDICATES A NARROW BAND OF CLOUDS ASSOCIATED WITH THE COLD FRONT WITH THE LOW LIFTING WELL NE OF THE REGION. THIS TROUGH IS EXPECTED TO MOVE THROUGH LATE TONIGHT AND EARLY FRIDAY WITH POST FRONTAL CLOUDS IN FAVORABLE UPSLOPE LOCATIONS ALONG THE NORTH AND WEST FACING SLOPES OF THE SIERRA AND TEHACHAPI MOUNTAINS. SOME RESIDUAL LIGHT PRECIP IS POSSIBLE TOMORROW IN THE HIGHER ELEVATIONS AS MOISTURE IS WRUNG OUT BY OROGRAPHIC LIFTING EFFECT.
HIGH PRESSURE ALOFT WILL MOVE EAST ACROSS UTAH TODAY.
Cold front has pushed through the CWA and the precipitation has diminished across the area.
PESKY UPPER LOW THAT HAS DOMINATED THE WEATHER OVER THE WESTERN GREAT LAKES THE PAST FEW DAYS WILL FINALLY LIFT TO THE NORTHEAST TODAY. WESTERN EDGE OF THE LOW STRATUS DECK CURRENTLY WORKING ITS WAY ACROSS THE NORTHERN MISSISSIPPI RIVER VALLEY EARLY THIS MORNING. SOUTHERN EXTENT OF ASSOCIATED COLD FRONT FRONTAL BOUNDARY WILL ESSENTIALLY WEAKEN AS IT PASSES NORTH OF LAKE SUPERIOR EARLY THIS EVENING. COULD EASILY SEE DAYTIME MAX TEMPS INTO THE LOWER OR PERHAPS MIDDLE 40S ESPECIALLY OVER THE SOUTHWEST PORTION OF THE FORECAST AREA.
OVERNIGHT HOURS INTO EARLY FRIDAY ARE LOOKING LIKE THE BEST PERIOD FOR HEAVY RAINFALL WITH JET FORCING AT A MAXIMUM AND INCREASING LAPSE RATES AS THE UPPER LEVEL TROUGH APPROACHES.
HIGH PRESSURE WILL RESULT IN DRY CONDITIONS THROUGH THE WEEKEND WITH A WEAK WARMING TREND.
Expect mid to upper 40s in most locations, but temperatures may struggle into the low 40s further east across central/south central Illinois where the clouds will hang around the longest.
High pressure is moving into the region today. Highs will be in the upper 50s in the northwestern portions of the region and in the low to mid 60s for the rest of the region.
1002 AM EST THU DEC 3 2015 AN UPPER LEVEL LOW WILL CONTINUE TO PULL EAST TODAY. ALTHOUGH THE CENTER OF THE MAIN UPPER LEVEL LOW MOVES EAST TODAY. THERE WILL BE A HANG BACK TROUGH AXIS EXTENDING SOUTHWEST INTO OUR REGION. HIGH TEMPS WILL LIKELY REMAIN IN THE LOWER 40S. FRIDAY AFTERNOON AN UPPER LEVEL DISTURBANCE WILL DIVE SOUTHEAST INTO UPSTATE NEW YORK AS WEAK MID LEVEL RIDGING MOVES OVERHEAD.
A BROAD UPPER TROF OVER THE CENTRAL GULF COAST AND SE STATES WILL CONTINUE TO WEAKEN SLOWLY TODAY AND TONIGHT AS MAIN UPPER SYSTEM CONTINUES TO LIFT OFF TO THE NORTHEAST. LATEST SATELLITE AND RADAR LOOPS CONTINUE TO SHOW HIGH BASE MOISTURE ADVECTING NORTHEASTWARD ACROSS THE LOWER MS RIVER VALLEY AND CENTRAL GULF COAST REGION LEADING TO BKN TO OVC CIRRUS OVER THE MUCH OF THE FORECAST AREA THIS MORNING GRADUALLY SHIFTING EASTWARD THROUGH THIS AFTERNOON. WITH LESS CLOUDS TONIGHT LOWS WILL FALL TO NEAR OR SLIGHTLY BELOW FREEZING FOR MOST AREAS GENERALLY NORTH OF A LINE STRETCHING FROM LUCEDALE MS TO CAMDEN AL AND THE MID TO UPPER 30S FOR ALL OTHER AREAS TO THE SOUTH AND EAST.
As for temperatures, with little change expected to the general air mass across the high plains, look for highs back up into the 50s(F) again this afternoon.
IT WILL REMAIN VFR FOR THE NEXT 24 HOURS AS HIGH PRESSURE BUILDS INTO THE REGION.
SLEET AND FREEZING RAIN. FOR A MIXTURE OF FREEZING RAIN AND SLEET UNTIL 7 AM. FINALLY THERE IS A FREEZING RAIN ADVISORY FOR THE LOWER COLUMBIA BASIN OF BOTH OREGON AND WASHINGTON UNTIL 7 AM FOR MAINLY FREEZING RAIN. AN AIR STAGNATION ADVISORY CONTINUES FOR THE BLUE MOUNTAIN FOOTHILLS NORTHWARD THROUGH THE LOWER COLUMBIA BASIN AND THE ADJACENT VALLEYS UNTIL FRIDAY AT NOON. ANOTHER WEATHER SYSTEM WILL MOVE INTO THE REGION TONIGHT AND EARLY FRIDAY WHICH LOOKS TO BE WARMER AND WET.