Aikyam-Lab/Synoptic-Bench huggingface dataset:
831 AM EDT TUE MAY 19 2015 A COLD FRONT WILL MOVE ACROSS CENTRAL PENNSYLVANIA TODAY WITH A MARGINAL/ISOLATED SEVERE WEATHER RISK FROM THE EASTERN COAL REGION INTO THE POCONOS. A COOLER AND MAINLY DRY WEATHER PATTERN WITH NEAR TO BELOW NORMAL TEMPERATURES WILL GRIP THE REGION FROM WEDNESDAY INTO THE WEEKEND. COLD FRONT BARELY TO THE WEST OF BFD AND PIT. ONCE THE LOW CLOUDS/FOG BURN OFF THIS MORNING. ANY EARLY EVENING ACTIVITY OVER FAR ERN SXNS SHOULD PUSH OUT OF THE CWA AFTER 00Z AS NOTICEABLY DRIER AIR SPREADS ACROSS THE AREA IN THE WAKE OF THE COLD FRONT. A COOLER BROAD CYCLONIC FLOW WILL BEGIN TO GRIP THE REGION ON WEDNESDAY WITH DAYTIME HIGHS SOME 15-20F COOLER THAN TODAY. THE COOLER AIR ALOFT SHOULD PROMOTE AFTN CU DEVELOPMENT WITH A NW BREEZE ADDING TO THE RELATIVE CHILL.
750 AM CDT TUE MAY 19 2015 TEMPERATURES HAVE RISEN TO ABOVE FREEZING ACROSS THE AREA. TEMPERATURES WILL STILL LIKELY DROP INTO THE LOW 30S IN SOME AREAS. ENERGY FROM AN UPPER LEVEL TROUGH OVER THE SOUTHWEST CONUS WILL PUSH NORTH INTO THE NORTHERN PLAINS.
DAYTIME HEATING AHEAD OF THE CONVECTION WILL PUSH WELL INTO THE LOWER 90S INLAND AND MIDDLE/UPPER 80S COAST AND WITH DEWPOINTS AROUND 70 DEGREES.
WILL ALLOW THE HIGH RISK OF RIP CURRENTS TO EXPIRE AT 7 AM. EXPECTING THE CONVECTION TO WANE AS THE MAIN UPPER TROUGH SHIFTS FARTHER EAST. CONDITIONS TODAY WILL BE SIMILAR TO YESTERDAY AS BROAD RIDGING SUPPRESSING DEVELOPMENT DURING THE AFTERNOON.
1000 AM MDT TUE MAY 19 2015 WATER VAPOR SATELLITE SHOWS PLUME OF MOISTURE MOVING NORTHWARD TOWARD FORECAST AREA AHEAD OF UPPER LOW OVER GREAT BASIN.
A COLD FRONT WAS CROSSING MID TN THIS MORNING. /ISSUED 307 AM CDT TUE MAY 19 2015/ PRETTY QUIET NIGHT ACROSS MIDDLE TENNESSEE TONIGHT AHEAD OF THE APPROACHING COLD FRONT. UPPER TROUGH OVER THE MIDWEST/GREAT LAKES AREA WILL PROVIDE SOME WEAK LIFT AS ANOTHER COLD FRONT MOVES INTO THE REGION.
A SPLINTERED RIDGE EXTENDS ACROSS SOUTH FLORIDA AND INTO THE SOUTHEAST GULF OF MEXICO. WITH AN UPPER LEVEL TROUGH AXIS (ABOVE 400 MB)ALIGNED ACROSS OUR AREA AND A LOW LEVEL. WITH A SPLIT WESTERN ATLANTIC RIDGE LYING ACROSS SOUTH FLORIDA AND INTO THE SOUTHEAST GULF OF MEXICO.
WEAK SURFACE RIDGING OVER THE AREA WILL SLOWLY SLIDE SOUTH AND EAST OVER THE NEXT 24 HOURS. HIGH PRESSURE RIDGING ACROSS THE CENTRAL PENINSULA WILL SLOWLY SAG SOUTH AND EAST TODAY AS A WEAK PRESSURE GRADIENT CONTINUES OVER THE AREA.
1206 PM EDT TUE MAY 19 2015 UPDATE/MARINE A COLD FRONT MOVED THROUGH LOWER MICHIGAN LAST NIGHT AND TEMPERATURES HAVE FALLEN INTO THE 40S. CLOUDS WILL CLEAR THIS EVENING AND TEMPERATURES WILL FALL TO FREEZING OR JUST BELOW MAINLY NORTH OF M-46.
1022 AM EDT TUE MAY 19 2015 COLD FRONT PUSHES EAST THIS MORNING.
/ISSUED 307 AM CDT TUE MAY 19 2015/ PRETTY QUIET NIGHT ACROSS MIDDLE TENNESSEE TONIGHT AHEAD OF THE APPROACHING COLD FRONT. UPPER TROUGH OVER THE MIDWEST/GREAT LAKES AREA WILL PROVIDE SOME WEAK LIFT AS ANOTHER COLD FRONT MOVES INTO THE REGION.
1244 PM EDT TUE MAY 19 2015 COLD FRONT PASSAGE TODAY WILL USHER IN SEASONABLY COOL TEMPERATURES FOR THE REST OF THE WEEK. COLD FRONT CONTINUES TO MAKE ITS TREK TO THE EAST EARLY THIS AFTERNOON. WILL AT LEAST MENTION A SLIGHT CHANCE FOR A SHOWER OR TWO ALONG THE RIDGES AS THE FRONT CROSSES. MID LEVEL MOISTURE AND STRATOCUMULUS DECK IS STRUGGLING TO MAKE ITS WAY SOUTH AS THE UPPER TROUGH PIVOTS ACROSS THE GREAT LAKES.
650 AM CDT TUE MAY 19 2015 MAIN CONCERN THROUGH THE MORNING WILL BE EVOLUTION OF THE LOW STATUS DECK THAT HAS PERSIST ACROSS MUCH OF NORTHERN AND CENTRAL IOWA OVERNIGHT. TEMPERATURES WILL CONTINUE TO REMAIN WELL BELOW NORMAL AS THE COOL CANADIAN AIRMASS ASSOCIATED WITH THE HIGH WILL BE ACROSS THE STATE DURING THE DAY. THIS WILL HELP SATURATE THE LOWER LEVELS BY AROUND 09Z.
759 AM EDT TUE MAY 19 2015 UPDATE A COLD FRONT MOVED THROUGH LOWER MICHIGAN LAST NIGHT AND TEMPERATURES HAVE FALLEN INTO THE 40S. CLOUDS WILL CLEAR THIS EVENING AND TEMPERATURES WILL FALL TO FREEZING OR JUST BELOW MAINLY NORTH OF M-46.
A drier, cooler airmass will settle into the Ohio Valley today with high temperatures in the upper 60s to mid 70s. Cold front is quite evident in IR satellite imagery, and extends from near CVG to SDF and on SW to Fort Campbell.
728 AM EDT TUE MAY 19 2015 AVIATION A COLD FRONT MOVED THROUGH LOWER MICHIGAN LAST NIGHT AND TEMPERATURES HAVE FALLEN INTO THE 40S. CLOUDS WILL CLEAR THIS EVENING AND TEMPERATURES WILL FALL TO FREEZING OR JUST BELOW MAINLY NORTH OF M-46.
1024 AM EDT TUE MAY 19 2015 A COLD FRONT WILL MOVE ACROSS THE AREA TODAY. BEHIND THE FRONT A COOLER AND DRIER AIR MASS WILL MOVE INTO THE REGION FOR THE MIDDLE OF THE WEEK.
611 AM CDT TUE MAY 19 2015 THE SHORT TERM STARTS OFF FRESH IN THE WAKE OF THE COLD FRONTAL PASSAGE THROUGH THE WFO PAH FORECAST AREA. THE IMPRESSED BAROCLINIC ZONE GENERATES A SHARPER AGEOSTROPHIC RESPONSE IN LOW LOW LEVEL FLOW OVER WESTERN SECTIONS OF THE LOWER MISSISSIPPI VALLEY.
653 AM CDT TUE MAY 19 2015 ***AVIATION DISCUSSION 12Z TAFS AT BOTTOM*** AN UPPER TROUGH WILL REMAIN OVER THE NORTHLAND TODAY. BUT DRIER AIR AND WEAK HIGH PRESSURE AT THE SURFACE SHOULD SCOUR OUT THE CLOUDS THAT COVERED MOST AREAS AS OF 0730Z AND KEEP MOST AREAS DRY TODAY. MOST AREAS WILL DROP BELOW FREEZING. WITH SOME LOCALIZED AREAS INTO THE LOWER TWENTIES. WE EXPECT PARTLY TO MOSTLY SUNNY SKIES WEDNESDAY WITH TEMPERATURES WARMING INTO THE LOWER TO MIDDLE SIXTIES. A WEAK COLD FRONT WILL JUST BE NEARING THE INTERNATIONAL BORDER BY EARLY WEDNESDAY EVENING.
/ISSUED 400 AM EDT TUE MAY 19 2015/ MID/UPPER LEVEL RIDGE EXTENDS FROM THE NORTHEAST GULF NORTHEASTWARD ALONG THE EASTERN SEABOARD. WATER VAPOR IMAGERY FROM EARLY THIS MORNING SHOWED DRY AIR OVER THE BAHAMAS AND THE EASTERN HALF OF THE REGION ALONG THE SOUTHERN EDGE OF THE LOW/MID LEVEL RIDGE. HIGH PRESSURE RIDGE WAS IN CONTROL ACROSS THE REGION. WITH A COLD FRONT PUSHING INTO THE SOUTHEAST AND NEAR THE FLORIDA/GEORGIA BORDER BY THE EVENING. A WEAK FRONTAL BOUNDARY THEN ENTERS NORTHERN FLORIDA ON WEDNESDAY AND THE LOW/MID LEVEL RIDGE WILL WEAKEN.
A SERIES OF WEAK UPPER LOWS WILL BRING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TO MAINLY THE INTERIOR EACH AFTERNOON THROUGH LATE WEEK. BAGGY UPPER TROUGH WITH EMBEDDED WEAK IMPULSES REMAINS FIXED ON THE WEST COAST. ALTHOUGH A REINFORCING UPPER LOW MOVING TO OUR SOUTH MAY INCREASE EASTERLY FLOW ALOFT JUST ENOUGH TO CARRY SHOWERS A BIT CLOSER TO THE COAST.
722 AM EDT TUE MAY 19 2015 HIGH PRESSURE CENTERED OVER THE DAKOTAS WILL BUILD SOUTHEAST INTO THE PLAIN STATES AND EXTEND A RIDGE INTO THE REGION THROUGH MID WEEK.
834 AM PDT TUE MAY 19 2015 LOW PRESSURE ALOFT AND A DEEP MARINE LAYER WILL KEEP AREAS OF CLOUDS.
1041 AM MDT TUE MAY 19 2015 THE UPPER LOW CLOSES OFF OVER WESTERN UTAH THIS MORNING AND WILL EVENTUALLY EJECT NORTHEAST ACROSS WYOMING THIS AFTERNOON AND EVENING. SHOWERS END THIS EVENING WITH DRIER AIR SWEEPING IN FROM THE WSW AS WEAK RIDGING TRIES TO BUILD OVER. LINGERING MOISTURE UNDER THE FLAT RIDGE COMBINED WITH WARMER CONDITIONS WILL KICK OFF ISOLATED SHOWERS WEDNESDAY AFTERNOON. GENERALLY CONFINED TO THE HIGHER TERRAIN. BUT SHOULD REBOUND NICE ON WEDNESDAY UNDER THE RIDGE SLIDING OVERHEAD.
1245 PM EDT TUE MAY 19 2015 HIGH PRESSURE CENTERED OVER THE DAKOTAS WILL BUILD SOUTHEAST INTO THE PLAIN STATES AND EXTEND A RIDGE INTO THE REGION THROUGH MID WEEK.
1055 AM CDT TUE MAY 19 2015 THE WEAK COLD FRONT IS SITUATED ROUGHLY FROM SAVANNAH TN TO MARIANNA AR. THIS BOUNDARY IS SLOWLY SINKING SOUTH AS A SPRAWLING 1030+ MB HIGH PRESSURE CENTER WAS MOVING SOUTHEAST INTO THE NORTH-CENTRAL PLAINS. THE AFOREMENTIONED FRONTAL BOUNDARY WILL CONTINUE TO PUSH SOUTH BRINGING DRIER AIR AND SLIGHTLY COOLER TEMPERATURES INTO THE REGION. A STRONGER LOW PRESSURE IS PROGGED BY BOTH THE NAM AND ECMWF GIVEN THE STRONGER WAVE ALOFT.
SEAS AND NORTHERLY WINDS WILL REMAIN LIGHT TO MODERATE THROUGH THE WEEK BETWEEN HIGH PRESSURE FAR OFFSHORE AND LOW PRESSURE FAR INLAND. THE LOW PORTION OF THE BLOCK IS OVER CALIFORNIA AND NEVADA.
CONDITIONS SHOULD IMPROVE TO VFR BY THIS AFTERNOON AS A COLD FRONT PUSHES THROUGH THE STATE.
944 AM EDT TUE MAY 19 2015 HIGH PRESSURE CENTERED OVER THE DAKOTAS WILL BUILD SOUTHEAST INTO THE PLAIN STATES AND EXTEND A RIDGE INTO THE REGION THROUGH MID WEEK.
ELSEWHERE SKIES REMAIN CLEAR WITH HIGH PRESSURE CENTERED OVER THE MID-ATLANTIC COAST LINGERING ACROSS THE FORECAST AREA. WEAKENING COLD FRONT NOTED TO OUR WEST WHICH WILL MOVE INTO THE WRN ZONES BY EVENING. N WINDS ~5-6 KTS AND VFR EXPECTED FOR REMAINDER OF TODAY AND EVENING AS WEAK COLD FRONT WITH WEAK HIGH PRESSURE BUILDING BEHIND IT. INITIAL WAVE WILL BE SUFFICIENT TO SEND A WEAK AND DRY COLD FRONT ACROSS THE AREA LATE SUNDAY. THIS BETWEEN LOW LEVEL HIGH PRESSURE BECOMING BETTER ORGANIZED OVER THE SOUTHEAST CONUS. AND THE APPROACH OF LOW PRESSURE AND ATTENDANT FRONT OVER THE PLAINS.
344 PM CST SUN DEC 6 2015 WEST/NORTHWEST FLOW ALOFT WILL RENEW LEE TROUGHING DOWN THE SPINE OF THE HIGH PLAINS IN WAKE OF SURFACE RIDGING SLIDING SOUTH OF THE SOUTH PLAINS/ROLLING PLAINS. SOUTHWEST WINDS WILL USHER IN WARMER TEMPERATURES ALOFT LEADING TO MILD OVERNIGHT LOWS IN THE UPPER 20S NORTHWEST TO MID 30S SOUTH AND EAST.
413 PM EST SUN DEC 6 2015 WEAK LOW PRESSURE WILL MOVE THROUGH THE REGION TONIGHT INTO MONDAY.
351 PM EST SUN DEC 6 2015 A RIDGE OF HIGH PRESSURE WILL LINGER OVER THE UPPER OHIO VALLEY THROUGH TONIGHT. LOW PRESSURE WILL PASS ACROSS SOUTHERN OHIO MONDAY.
AS A LGT SW WIND AND COMPRESSIONAL WARMING MAY FACTOR IN WITH WEAK COLD FRONT MOVG ACROSS I-35 TOWARDS THE REGION. AN UPPER TROUGH MOVING ACROSS THE MIDDLE MS RIVER VALLEY WILL HELP TO PUSH A COLD FRONT ACROSS THE AREA TODAY. /ISSUED 205 AM CST SUN DEC 6 2015/ HIGH CIRRUS ACROSS NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA TO CONTINUE STREAMING EAST ACROSS THE FOUR STATE REGION THROUGH TODAY AS AN UPPER-TROUGH ACROSS THE MIDWEST SHIFTS EAST.
156 PM EST SUN DEC 6 2015 WEAKENING RIDGE OF HIGH PRESSURE CENTERED OVER THE MID ATLANTIC COAST AS LONGWAVE TROUGH CONTINUES TO DEEPEN OVER THE PLAINS. BEST CHANCES FOR RAIN ARE STILL VERY LIMITED DUE TO THE INFLUENCE OF THE COOL AND STABLE NOSE OF HIGH PRESSURE AND THE DEEP DRY LAYER OVER THE REGION. THE GOOD NEWS IS THAT AS I WRITE THIS THE INCOMING ECMWF LOOKS LIKE IT IS DEFINITELY TRENDING TOWARD THE SLOWER GFS WITH A CLOSED LOW DEVELOPING OVER THE SOUTHERN PLAINS.
1111 AM EST SUN DEC 6 2015 A RIDGE OF HIGH PRESSURE WILL REMAIN OVER PENNSYLVANIA THROUGH THE REST OF THIS WEEKEND. AS AN ANOMALOUS UPPER RIDGE BUILDS ALONG THE EAST COAST. TEMPERATURES HAVE WARMED WELL ABOVE FREEZING. BUT TEMPS REMAIN BELOW FREEZING IN THE DENSE FOG AREAS. ENSEMBLE MEAN 925 TEMPS SUPPORT HIGHS MOSTLY IN THE LOW 50S. AS ANOMALOUS UPPER RIDGE BUILDS ALONG THE E COAST. THE EXTENDED FCST APPEARS DRY AND INCREASINGLY WARM BENEATH BUILDING RIDGE. GEFS PLUME DATA AND ECEME MOS SUPPORT MIN TEMPS ABOVE FREEZING ACROSS THE ENTIRE CWA THU-SAT AND MAX TEMPS ARND 15F ABV NORMAL. A RIDGE OF HIGH PRESSURE WILL REMAIN OVER PENNSYLVANIA THROUGH THE REST OF THIS WEEKEND. A STRONG INVERSION CONTINUES TO TRAP MOISTURE IN THE LOW- LEVELS.
324 PM EST SUN DEC 6 2015 HIGH PRESSURE REMAINS IN CONTROL THROUGH MONDAY.
/ISSUED 947 AM CST SUN DEC 6 2015/ Weak cold front, with little airmass change behind it, is currently pushing through eastern OK and will move through western AR by early this afternoon. Band of stratocu will quickly exith the region early this morning as a weak cold front moves through.
16Z SURFACE ANALYSIS PLACES A COLD FRONT FROM WESTERN LAKE SUPERIOR BACK THROUGH EASTERN KANSAS/OKLAHOMA AND INTO WEST TEXAS. AN UPPER LOW WILL TRACK THROUGH THE MID MISSISSIPPI VALLEY TODAY AND INTO THE OHIO VALLEY TONIGHT. THERE IS A WEAK TROF REFLECTED AT THE SURFACE THAT WILL MOVE THROUGH THE MIDSOUTH LATE THIS AFTERNOON INTO THIS EVENING SHIFTING WINDS FROM LIGHT SOUTH TO LIGHT WEST/NORTHWEST. A BATCH OF STRATOCU WILL MOVE THROUGH NE MISSISSIPPI THIS MORNING WHILE ANOTHER MOVES ACROSS THE NORTHERN TIER OF COUNTIES WITH THE UPPER TROF ITSELF LATER THIS AFTERNOON AND THIS EVENING. MOS TEMPS CAME IN A BIT WARMER AND GIVEN HIGHS YESTERDAY AND PARTIAL SUNSHINE DECIDED TO BUMP TEMPS UP A FEW DEGREES. WEAK HIGH PRESSURE WILL BUILD IN AFTER THE SYSTEM DEPARTS THIS EVENING.
310 PM EST SUN DEC 6 2015 HIGH PRESSURE WILL REMAIN CENTERED SOUTH OF NEW ENGLAND THROUGH EARLY MONDAY. A WEAK COLD FRONT WILL SAG SOUTH FROM CANADA AND OFFSHORE BY MONDAY AFTERNOON. HIGH PRESSURE BUILDS IN FROM THE WEST BEHIND THE FRONT. LOW PRESSURE DEVELOPS OF THE VIRGINIA COAST MONDAY NIGHT AND STAYS SOUTH OF NORTHERN NEW ENGLAND.
OTHERWISE HIGH PRESSURE WILL PROVIDE DRY AND MILD WEATHER THROUGH THE MIDDLE OF THE WEEK. IT HAS BECOME CLEAR THAT THE LOW CLOUDS IN THE CHAMPLAIN VALLEY ARE NOT GOING AWAY TODAY AND HAVE ADJUSTED MAXIMUM TEMPERATURES DOWN ABOUT 5 TO 10 DEGREES. THE SAME CAN BE SAID FOR THE LOW CLOUDS IN THE SAINT LAWRENCE VALLEY. DENSE FOG CONTINUES AND THAT SHOULD PERSIST THIS AFTERNOON AS WELL DUE TO RIDGING ALOFT NOT ALLOWING FOR MUCH IN THE WAY OF MIXING. UPPER LOW MOVES SOUTHEAST ACROSS MID ATLANTIC STATES MONDAY. THIS PLACES FORECAST AREA IN WEAK TROUGHINESS WHILE WEAK SURFACE BOUNDARY SLIDES ACROSS THE AREA. TEMPS A LITTLE COOLER BUT STILL ABOVE NORMAL WITH HIGHS IN THE LOWER TO MID 40S. UPPER LOW MOVES TO MID ATLANTIC COAST MONDAY NIGHT.
AND DRY COLD FRONTAL PASSAGE ATTENDANT TO THAT WAVE IS EXPECTED LATE TONIGHT INTO MONDAY MORNING. WHICH MEANS WE ARE AGAIN CALLING FOR HIGHS IN THE LOWER 50S ACROSS SOUTHWEST AND PARTS OF CENTRAL ND /EVEN IN BISMARCK/.
235 PM EST SUN DEC 6 2015 HIGH PRESSURE WILL MAINTAIN DRY WEATHER TONIGHT. A LOW PRESSURE SYSTEM MAY BRING LIGHT RAIN TO AREAS SOUTH OF PITTSBURGH ON MONDAY.
Winds behind the cold front will decrease to under 10 kts later this afternoon.
AN U/L SUBTROPICAL RIDGE CURRENTLY OVER THE FLORIDA PENINSULA AND GULF OF MEXICO WILL BE SUPPRESSED A BIT SOUTH TONIGHT AND MONDAY AS AN U/L LOW PUSHES ACROSS THE OHIO RIVER VALLEY AND MID ATLANTIC REGION. WITH THE TROUGH AXIS EXTENDING OVER THE SOUTHEAST U. HIGH PRESSURE WILL FILL ALONG THE MID ATLANTIC COAST WHILE A REINFORCING AREA OF HIGH PRESSURE WILL BUILD OVER THE LOWER MISSISSIPPI VALLEY AND FLORIDA PENINSULA. AN AREA OF LOW PRESSURE WILL DEVELOP OFF THE CAROLINA COAST ALONG A STRONG BAROCLINIC ZONE AS U/L ENERGY FROM THE APPROACHING L/W TROUGH RIDES OVER THE BOUNDARY. A WEAK COLD FRONT WILL APPROACH THE AREA LATE IN THE DAY WITH DRIER AIR AND CLEARING SKIES ADVECTING ACROSS THE NORTHERN AND CENTRAL FORECAST AREA LATE IN THE DAY.
LOCAL STRONG WINDS IN THE BLUE MOUNTAINS, WALLOWA COUNTY AND CENTRAL OREGON HAVE DECREASED AND WILL ALLOW THE HIGH WIND WARNINGS TO EXPIRE. AS SUCH DID REDUCE POPS A BIT FOR THE AFTERNOON, ESPECIALLY ACROSS THE BASIN AND ALONG THE HIGHWAY 97 CORRIDOR IN OREGON.
251 PM CST SUN DEC 6 2015 DESPITE PERIODIC WEAK COLD FRONT PASSAGES THIS WEEK.
1154 AM CST SUN DEC 6 2015 WEAK COLD FRONT APPEARS TO BE MOVING INTO THE W/NWRN PORTIONS OF THE CWA AT THIS TIME. SFC ANALYSIS THIS MORNING HAS A WEAK COLD FRONT PUSHING THROUGH N TX AND W C TX WITH MAINLY JUST A WIND SHIFT BEHIND IT AND SOME SLIGHTLY DRIER AIR.
A WEAK COLD FRONT MOVING ACROSS CENTRAL TEXAS EARLY THIS AFTERNOON AND WILL MOVE INTO DEEP SOUTH TEXAS LATER THIS AFTERNOON AND EVENING. A COLD FRONT IS MOVING INTO CENTRAL TEXAS THIS MORNING AND WILL PRESS FORWARD TOWARD DEEP SOUTH TEXAS AND THE RGV. A MID LEVEL SHORT WAVE TROUGH WILL TRANSIT EAST ACROSS THE CENTRAL PLAINS TODAY. WITH A FOLLOW-ON RIDGE PUSHING HIGH PRESSURE SOUTHEAST OUT OF THE ROCKIES. WITH LIGHTER WINDS TONIGHT AND MONDAY AS HIGH PRESSURE SPREADS OVER THE AREA. HIGHS WILL BE IN THE LOW TO MID 70S WITH AN OVERNIGHT LOW TONIGHT FROM NEAR 50 TO AROUND 55.
/issued 525 AM CST SUN DEC 6 2015/ /12Z TAFS/ A cold front will continue moving south through West Central Texas this morning shifting surface winds to the north. As an upper level trough passed eastward out of the Southern Plains last night, a weak dry cold front pushed south through the forecast area. Expect north winds 5 to 15 mph today in the wake of the cold front with winds becoming light and variable tonight. Temperatures today will be seasonal with afternoon highs in the lower 60s.
1238 PM EST SUN DEC 6 2015 HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL WEAKEN AS A TROUGH DEVELOPS OFF THE COAST TONIGHT. THE AREA OF LOW PRESSURE WILL MOVE NORTHEASTWARD AND FARTHER AWAY FROM THE FORECAST AREA MONDAY.
1103 AM EST SUN DEC 6 2015 HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL WEAKEN AS A TROUGH DEVELOPS OFF THE COAST TONIGHT. THE AREA OF LOW PRESSURE WILL MOVE NORTHEASTWARD AND FARTHER AWAY FROM THE FORECAST AREA MONDAY.
1112 AM EST SUN DEC 6 2015 A RIDGE OF HIGH PRESSURE WILL REMAIN OVER PENNSYLVANIA THROUGH THE REST OF THIS WEEKEND. AS AN ANOMALOUS UPPER RIDGE BUILDS ALONG THE EAST COAST. TEMPERATURES HAVE WARMED WELL ABOVE FREEZING. BUT TEMPS REMAIN BELOW FREEZING IN THE DENSE FOG AREAS. ENSEMBLE MEAN 925 TEMPS SUPPORT HIGHS MOSTLY IN THE LOW 50S. AS ANOMALOUS UPPER RIDGE BUILDS ALONG THE E COAST. THE EXTENDED FCST APPEARS DRY AND INCREASINGLY WARM BENEATH BUILDING RIDGE. GEFS PLUME DATA AND ECEME MOS SUPPORT MIN TEMPS ABOVE FREEZING ACROSS THE ENTIRE CWA THU-SAT AND MAX TEMPS ARND 15F ABV NORMAL. A RIDGE OF HIGH PRESSURE WILL REMAIN OVER PENNSYLVANIA THROUGH THE REST OF THIS WEEKEND. A STRONG INVERSION CONTINUES TO TRAP MOISTURE IN THE LOW- LEVELS.
MORE CLOUD DISSIPATION TODAY HAS GIVEN WAY TO WARMER TEMPS WITH LOWER TO MID 70S HAVING OCCURRED ALREADY.
321 PM CST SUN DEC 6 2015 WATER VAPOR IMAGERY SHOWS A TROF AXIS SWINGING THROUGH THE MID/SRN MISSISSIPPI VALLEY THIS AFTERNOON. LATEST SFC ANALYSIS SHOWS AN ASSOCIATED WEAKENING COLD FRONT STRETCHING FROM THE ARKLATEX THROUGH ERN TX TO NEAR THE HILL COUNTRY. OTHERWISE HIGH PRESSURE CENTERED OVER THE APPALACHIANS CONTINUES TO RIDGE SWWD OVER THE FORECAST AREA.
A SERIES OF MID/UPPER LEVEL SHORT WAVES TROUGHS WILL BYPASS THE REGION WELL TO THE NORTH HAVING NO IMPACT ON THE LOCAL FORECAST AREA. A WEAKENING COLD FRONT ASSOCIATED WITH THE FIRST OF THESE SHORT WAVES WILL PUSH INTO THE AREA LATE TONIGHT AND MONDAY WITH LITTLE FANFARE BEFORE BECOMING DIFFUSE. HIGH PRESSURE WILL THEN BE REINFORCED ACROSS THE AREA EARLY IN THE WEEK AND TRANSLATE SLOWLY EASTWARD AS THE WEEK PROGRESSES.
1256 PM EST SUN DEC 6 2015 HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH MONDAY.
1026 AM MST SUN DEC 6 2015 18Z TAF CYCLE WEAK UPPER RIDGE TO FLATTEN AND WEAK LEE SFC TROF TO DEVELOP DURING THE NEXT 24 HRS. HIGH TEMPERATURES WILL BE A FEW TO 12 DEGREES COOLER CENTRAL AND EAST TODAY IN THE WAKE OF YESTERDAYS COLD FRONT. A WARMING TREND WILL COMMENCE IN THE WEST AS A RIDGE OF HIGH PRESSURE CROSSES FROM THE WEST.
1205 PM EST SUN DEC 6 2015 HIGH PRESSURE WILL HOLD SOUTH OF NEW ENGLAND TODAY. A WEAK COLD FRONT WILL SAG SOUTH FROM CANADA AND OFFSHORE BY MONDAY AFTERNOON. HIGH PRESSURE BUILDS IN FROM THE WEST BEHIND THE FRONT. LOW PRESSURE DEVELOPS OF THE VIRGINIA COAST MONDAY NIGHT AND STAYS SOUTH OF NORTHERN NEW ENGLAND.
233 PM CST SUN DEC 6 2015 The northwesterly flow at mid and upper levels, on the west side of an upper level trough across the mid MS river valley, will transition to zonal flow. A low amplitude upper trough embedded within the zonal upper level flow will move east across NE.
Clouds have increased across the area overnight ahead of the short wave trough. Clouds will clear from west to east this afternoon after the trough axis passes over the area. Highs will still be able to warm into the low to middle 50s this afternoon. Lows tonight will drop into the lower 30s.
1120 AM CST SUN DEC 6 2015 FOR 18Z TAFS /ISSUED 1052 AM CST SUN DEC 6 2015/ IT FELT A LITTLE BIT WARMER MORNING THIS MORNING WITH TEMPS NEAR 40 DEGREES. THE UPPER LEVEL RIDGE THAT WAS OVER THE AREA YESTERDAY IS NOW OFF TO OUR EAST AS A TROUGH MOVES INTO MID MISSOURI VALLEY. BUT WITH CURRENT OBS SHOWING TEMP TRENDS RUNNING A FEW DEGREES WARMER.
THERE IS SOME MIX OUT OF THE LOW STRATUS AND FOG IN THIS AREA WITH DAYTIME HEATING. GFS IS NOT AS AGGRESSIVE DURING THE AFTERNOON WITH THE LOW STRATUS AND FOG. KEPT LOWS TONIGHT IN THE LOWER TO MID 30S WITH THE EXPECTED CLOUDS AND FOG. HIGHS MONDAY WILL DEPEND ON IF AND HOW MUCH THE LOW CLOUDS AND FOG DISSIPATE ACROSS THE AREA.
1151 AM EST SUN DEC 6 2015 HIGH PRESSURE WILL MOVE OFFSHORE TODAY. A WEAK COLD FRONT WILL CROSS THE REGION MONDAY.
934 AM MST SUN DEC 6 2015 ABOVE NORMAL TEMPERATURES WILL PERSIST ACROSS THE REGION THROUGH MUCH OF THE WEEK AS HIGH PRESSURE REMAINS IN CONTROL OF THE WEATHER.
354 PM EST SUN DEC 6 2015 HIGH PRESSURE REMAINS IN CONTROL OF THE SENSIBLE WEATHER TODAY WITH TEMPS SOARING INTO THE UPPER 50S TO LOWER 60S. DID OPT TO KEEP THE FAR EAST A BIT COOLER OVERALL IN THE MORE EXTREME VALLEY LOCATIONS. THESE CLOUDS ARE IN ADVANCE AND NEAR A DEEPENING CLOSED LOW ACROSS THE UPPER MIDWEST. THIS UPPER LOW IS EXPECTED TO MOVE EAST INTO THE OHIO VALLEY TONIGHT INTO EARLY MONDAY. GUIDANCE REMAINS IN GOOD AGREEMENT WITH THE UPPER LEVEL LOW MOVING INTO THE MID ATLANTIC BY MONDAY NIGHT. A COUPLE OF SHORT WAVE TROUGHS WILL BE MOVING THROUGH THE NORTHERN STREAM.
/ISSUED 629 AM EST SUN DEC 6 2015/ LATEST SURFACE ANALYSIS SHOWS A RIDGE OF HIGH PRESSURE ANCHORED ALONG THE MID AND UPPER ATLANTIC COAST. A WEAKENING RIDGE WAS NOTED OVER THE STATE WHILE A LONGWAVE TROUGH WAS DEEPENING OVER THE PLAINS AND DRIFTING EAST TOWARD THE MISSISSIPPI VALLEY. DRAGGING A WEAK/DRY COLD FRONT ACROSS THE FORECAST AREA BY MONDAY EVENING.
A FAST MOVING UPPER TROUGH ACROSS MO/IL IS SURFING THE WAKE OF A SFC COLD FRONT FROM KTRL. AS A LGT SW WIND AND COMPRESSIONAL WARMING MAY FACTOR IN WITH WEAK COLD FRONT MOVG ACROSS I-35 TOWARDS THE REGION. /ISSUED 205 AM CST SUN DEC 6 2015/ HIGH CIRRUS ACROSS NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA TO CONTINUE STREAMING EAST ACROSS THE FOUR STATE REGION THROUGH TODAY AS AN UPPER-TROUGH ACROSS THE MIDWEST SHIFTS EAST.
1142 AM CST SUN DEC 6 2015 A COLD FRONT EXTENDED FROM KINL TO KSPS WITH A NARROW BAND OF SPRINKLES ALONG/AHEAD OF THE FRONT. ACCOMPANIED BY A COLD FRONT. THERE IS FORCING DUE TO THE SHORT WAVE BUT THE LOW LEVELS ARE QUITE DRY. WITH PLENTY OF CLOUDS AND THE ARRIVAL OF THE FRONT MAXIMUM TEMPERATURES WILL BE COOLER THAN THE PAST COUPLE OF DAYS. HIGHS SHOULD TOP OUT IN THE LOWER TO MID 40S. OPERATIONAL MODELS INTENSIFY THE UPPER LEVEL TROUGH INTO A CLOSED LOW AS IT TRACKS INTO OH BY 12Z MON. MINIMUM TEMPERATURES WILL BE MAINLY IN THE LOWER 30S.
314 PM CST SUN DEC 6 2015 WEAK RIDGING IS EXPECTED ACROSS THE REGION TONIGHT INTO EARLY MON. AS A WEAK COLD FRONT LEADS TO A WIND SHIFT TO THE NW. THIS DOWNSLOPE FLOW WILL LEAD TO TEMPS CLIMBING INTO THE LOWER 60S. COULD SEE TEMPS EVEN A FEW DEGREES WARMER ON WED. ESPECIALLY AS THE MEDIUM RANGE MODELS SHOW A COLD FRONT DROPPING SOUTH ACROSS THE FORECAST AREA ON LATE FRI.
PARTLY CLOUDY AND MILD LOOKS GOOD WITH HIGHS IN THE UPPER 40S NORTH TO THE LOWER 50S SOUTH. THE CLOUD COVER WILL BE INCREASING ACROSS THE WEST LATE THIS AFTERNOON AHEAD OF AN UPPER LOW. AN UPPER LOW MOVES THROUGH THE AREA TONIGHT. COULD SEE SOME POTENTIAL FOR PATCHY FOG WITH SOME SUBSIDENCE BEHIND THE UPPER LOW AND THIS COULD PERSIST INTO MONDAY MORNING.
152 PM EST SUN DEC 6 2015 HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL WEAKEN AS A TROUGH INTENSIFIES OFF THE COAST TONIGHT. THE LOW PRESSURE WILL MOVE NORTHEASTWARD AND FARTHER AWAY FROM THE FORECAST AREA MONDAY.
352 PM CST SUN DEC 6 2015 RIDGE OF HIGH PRESSURE OVERHEAD TODAY WITH VERY WARM TEMPS ALOFT. WEAK RIDGING TRANSITIONS TO MORE ZONAL FLOW.
AN UPPER TROUGH WILL BRING A COLD FRONT THROUGH THE REGION. EARLY MORNING SURFACE ANALYSIS HAD A 1037MB HIGH CENTERED OVER THE MID ATLANTIC SEABOARD THAT WAS NOTED RIDGING BACK TO THE SOUTHWEST ACROSS OUR CWA. SLIGHTLY WARMER THAN NORMAL TEMPERATURES ARE EXPECTED. SLIGHTLY WARMER THAN NORMAL TEMPERATURES ARE EXPECTED THROUGH SUNDAY WITH SLIGHTLY COOLER THAN NORMAL TEMPERATURES SUNDAY NIGHT.
250 PM CST SUN DEC 6 2015 MID LEVEL CLOUDS HAVE BLANKETED MUCH OF CENTRAL ALABAMA TODAY IN AN AREA OF MOISTURE AND LIFT AHEAD OF A COLD FRONT. THE CLOUDS WILL LIKELY REMAIN IN THE AREA UNTIL A WEAK COLD FRONT PASSES THROUGH THE AREA AROUND SUNRISE MONDAY.
125 PM EST SUN DEC 6 2015 HIGH PRESSURE RIDGING INTO THE FORECAST AREA FROM THE NORTH WILL WEAKEN AS A TROUGH INTENSIFIES OFF THE COAST TONIGHT. THE LOW PRESSURE WILL MOVE NORTHEASTWARD AND FARTHER AWAY FROM THE FORECAST AREA MONDAY.