Aikyam-Lab/Synoptic-Bench huggingface dataset:
A COLD FRONTAL SYSTEM AND DEEP LOW MOVING INTO THE REGION WILL PRODUCE WINDY WEATHER. THE STRONGEST WINDS ARE FORECAST ON WEDNESDAY AS THE COLD FRONT PUSHES EAST ACROSS NORTHERN ARIZONA.
/ISSUED 331 AM EST TUE NOV 24 2015/ HIGH PRESSURE WILL CONTINUE ACROSS THE AREA THROUGH WEDNESDAY. THIS WILL KEEP ALL MAJOR SENSIBLE WEATHER IMPACTS WELL TO OUR WEST WITH WEAK MID LEVEL RIDGING OVER THE SE.
A WEAK UPPER LEVEL TROUGH WITH MAINLY HIGH AND MID CLOUDS WILL PASS EAST OF THE AREA BY ABOUT NOON FOLLOWED BY CLEARING SKIES. THEN THE LOW CENTER IS PROJECTED TO TURN EAST THIS EVENING AND REACH NORTHERN NV BEFORE SUNRISE WEDNESDAY. IT REMAINS UNCERTAIN IF ANY PRECIPITATION WILL REACH NORTHEAST UT AND NORTHWEST CO LATER WEDNESDAY AFTERNOON AS THE SURFACE COLD FRONT AND ITS PRECIPITATION BAND APPEAR TO REMAIN OVER THE WASATCH FRONT AT 00Z THU IN BOTH MODELS. THE CLOSED LOW WILL BE JUST ON OUR DOORSTEP WEDNESDAY EVENING AS GUSTY WINDS SUBSIDE WHEN THE ATMOSPHERE DECOUPLES. BY THANKSGIVING MORNING THE STRONGEST UPPER LEVEL SUPPORT SHIFTS EASTWARD CAUSING THE LOW TO STOP ANY FORWARD PROGRESSION.
DRIZZLE AND FREEZING DRIZZLE CONCERNS OVERNIGHT INTO THE MORNING. NORTHERN STREAM SYSTEM WILL PROPAGATE ACROSS SOUTHERN CANADA WITH A COLD FRONT MOVING THROUGH THE REGION TONIGHT AND WEDNESDAY. FREEZING DRIZZLE.
A COLD FRONT IS PRODUCING RAIN AND SNOW WITH SHARPLY FALLING SNOW LEVELS. SNOWFALL WILL OCCUR MAINLY FROM THE CASCADES EASTWARD THIS AFTERNOON INTO WEDNESDAY MORNING AS THE COLD UPPER LEVEL LOW MOVES INLAND ACROSS OUR AREA INTO WESTERN NEVADA. THE CLOSE PROXIMITY OF THE LOW WILL BRING INCREASED WIND SPEEDS TO THE EAST SIDE THAT WILL PRODUCE AREAS OF BLOWING SNOW.
613 AM EST TUE NOV 24 2015 A WEAK TROUGH OF LOW PRESSURE WILL CROSS THE EASTERN GREAT LAKES EARLY TODAY. HIGH PRESSURE OVER THE OHIO VALLEY WILL SPREAD NORTH ACROSS THE LOWER GREAT LAKES THROUGH THANKSGIVING.
853 AM EST TUE NOV 24 2015 HIGH PRESSURE BUILDING BACK IN TODAY.
SO DESPITE CURRENT READINGS LOWS IN THE LOW TO MID 30S ARE STILL ANTICIPATED. HIGH PRESSURE WILL WORK ITS WAY EASTWARD TODAY AND TONIGHT. WARMER MINS ARE EXPECTED. AFTER ANOTHER COLD NIGHT TONIGHT WITH LOWS MOSTLY IN THE LOWER 30S. MIN TEMPS WILL BE A GOOD 10 DEGREES WARMER ON SUNDAY NT. GIVEN JUST THE LOW CHANCES FOR SHOWER ACTIVITY. WE WILL SEE 60 DEGREES OR WARMER BY THE END OF THE WEEK. UPPER RIDGE AXIS EXTENDS SOUTH TO NORTH ALONG THE MISSISSIPPI RIVER. UPPER TROUGH CAN BE SEEN IN LATEST WATER VAPOR OVER KANSAS/PANHANDLE OF TEXAS.
545 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE NORTH THROUGH SUNDAY.
539 PM CST SAT DEC 5 2015 HIGH PRESSURE WILL WORK ITS WAY EASTWARD TODAY AND TONIGHT. WARMER MINS ARE EXPECTED. AFTER ANOTHER COLD NIGHT TONIGHT WITH LOWS MOSTLY IN THE LOWER 30S. MIN TEMPS WILL BE A GOOD 10 DEGREES WARMER ON SUNDAY NT. GIVEN JUST THE LOW CHANCES FOR SHOWER ACTIVITY. WE WILL SEE 60 DEGREES OR WARMER BY THE END OF THE WEEK. UPPER RIDGE AXIS EXTENDS SOUTH TO NORTH ALONG THE MISSISSIPPI RIVER. UPPER TROUGH CAN BE SEEN IN LATEST WATER VAPOR OVER KANSAS/PANHANDLE OF TEXAS.
RAIN REACHES THE GOLDEN GATE BY MORNING BUT THEN THE COLD FRONT FALLS APART OVER THE SOUTH BAY AND MONTEREY BAY REGION WITH ONLY SOME LIGHT SHOWERS ON SUNDAY.
1002 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE NORTH THROUGH SUNDAY.
930 PM EST SAT DEC 5 2015 HIGH PRESSURE CENTERED SOUTH OF NEW ENGLAND WILL REMAIN STATIONARY THROUGH SUNDAY.
WITH 30S ACROSS N EL PASO COUNTY TO 50S ALONG THE LOWER ARK RVR VALLEY AND 40S ALONG THE RATON MESA.
/ISSUED 255 PM CST SAT DEC 5 2015/ HIGH PRESSURE OVER OHIO VALLEY HAS SHIFTED LITTLE. AND AFTN HIGHS A TAD WARMER. WEAK COLD FRONT MOVG INTO PANHANDLES WILL MOVE ACROSS REGION TOMORROW.
A weather system is off the coast and the cold front will move inland late tonight and Sunday morning. The higher totals are expected from around Plumas County northward. several inches of snow is likely below pass levels and over some of the higher mountain highway roadways.
8 PM CST WITH TEMPERATURES SOME 4-6 DEGREES COOLER THAN GRIDDED TEMPERATURES FORECASTED EXCEPT FOR SOUTH CENTRAL LOUISIANA WHERE FORECAST TEMPS STILL IN RANGE OF FORECAST. /ISSUED 327 PM CST SAT DEC 5 2015/ MID-AFTERNOON SFC ANALYSIS SHOWS HIGH PRESSURE CENTERED OVER THE MID-ATLANTIC COAST. WATER VAPOR IMAGERY SHOWS WEAK RIDGING SLIPPING EWD OVER THE REGION.
THIS WILL HAPPEN AS A WEAK COLD FRONT CROSSES THE REGION.
FREEZING LEVEL WAS AT 14. HIGH PRESSURE WILL BE REINFORCED ACROSS THE REGION. THE UPPER LEVEL FLOW WILL BUCKLE ACROSS THE WESTERN CONUS LATE IN THE WEEK AS AN UPPER TROUGH MOVES INTO THE WEST COAST AND DEEPENS ACROSS THE INTERMOUNTAIN WEST.
PATCHES OF FREEZING RAIN MAY ALSO MIX IN WITH THE RAIN BELOW 2000 FEET IN THE KITTITAS AND YAKIMA VALLEYS, AND IN THE SIMCOE HIGHLANDS OVERNIGHT.
WITH THE LOW CLOUDS AND A FEW SPRINKLES EXPECTED TO CONTINUE OVERNIGHT. WITH THE HIGHEST CHANCES OVER SOUTHWEST FLORIDA NEAR KPGD/KRSW/KFMY. WITH A TIGHT PRESSURE GRADIENT OVER THE EASTERN GULF OF MEXICO ALONG THE SOUTHERN EDGE OF THIS RIDGE SUPPORTING BREEZY NORTHEAST WINDS.
ISSUED 323 PM EST SAT DEC 5 2015 SIGNIFICANT RIDGING ALOFT HAS SUPPORTED A VERY WARM LOWER AND MID TROPOSPHERIC COLUMN ACROSS THE UPPER MIDWEST AND GREAT LAKES REGIONS. GIVEN THE RATHER STEADY-STATE SURFACE RIDGING AND LACK OF AIRMASS REPLACEMENT NEAR THE GROUND.
321 PM MST SAT DEC 5 2015 UPPER TROUGH IS CURRENTLY MOVING INTO NEBRASKA WITH SOME BREEZY CONDITIONS ACROSS THE PLAINS. TEMPS WILL BE 10-15 DEGREES WARMER ON SUNDAY.
LARGE UPPER LEVEL LOW OFFSHORE WITH SOUTHERLY FLOW OVER THE FORECAST AREA. AS THE COLD FRONT ALONG THE COAST MOVES SLOWLY EAST TONIGHT AND SUNDAY EXPECT RAIN AND MOUNTAIN SNOW WILL INCREASE IN COVERAGE.
651 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL REMAIN OVER THE MID-ATLANTIC REGION THIS WEEKEND BEFORE EVENTUALLY MOVING OFFSHORE EARLY IN THE WEEK.
HIGH PRESSURE WILL EXTEND ACROSS OUR REGION THROUGH THE WEEKEND. LOW PRESSURE WILL DEVELOP OFF THE NC COAST ON MON. ANOTHER AREA OF HIGH PRESSURE WILL FOLLOW THROUGH MID-WEEK. EXPECT CLEAR SKIES TO PREVAIL WITH HIGH PRESSURE IN CONTROL OF THE WEATHER PATTERN. HIGHS TODAY WILL FINISH OFF IN THE MID TO UPPER 50S AND MOSTLY CLEAR SKIES OVERNIGHT SHOULD GET LOWS BACK INTO THE LOW 30S NORTHWEST BUT PERHAPS UPPER 30S IN THE SOUTHEAST. FOR SUNDAY HIGH PRESSURE AND UPPER LEVEL RIDGING WILL CONTINUE TO PRESIDE OVER THE AREA. THIS WILL KEEP THINGS SUNNY FOR THE DAYTIME HOURS AND A FEW TICKS WARMER THAN TODAY WITH UPPER 50S TO NEAR 60 DEGREES EXPECTED FOR HIGHS. QUESTION MARKS BEGIN TO COME INTO THE FORECAST AS AN UPPER LEVEL LOW MOVES ACROSS THE OHIO VALLEY.
MODERATE TO LOCALLY STRONG NW WINDS FROM THE RIDGES/PEAKS OF THE CENTRAL MT CHAIN EWD WILL DIMINISH SEVERAL HOURS AFTER SUNSET. FLAT UPPER LEVEL RIDGE BUILDS OVER NM SUNDAY. AN UPPER LEVEL TROUGH IS CURRENTLY RACING ACROSS THE ROCKIES. BUT THROUGH THE OVERNIGHT A COLD FRONT WILL SPILL THROUGH THE EASTERN PLAINS OF NEW MEXICO WHERE SOME LINGERING STRONG GUSTS WILL BE FOUND. WHILE SOME COOLER TEMPERATURES WILL BE FOUND IN EASTERN NEW MEXICO ON SUNDAY. A BUILDING RIDGE WILL KEEP CONDITIONS TRANQUIL AND DRY.
404 PM MST SAT DEC 5 2015 LATEST SATELLITE AND UPPER AIR DATA SHOW AN UPPER LEVEL SHORT WAVE TROUGH MOVING ONTO THE PLAINS. AHEAD OF THE TROUGH WAS A PLUME OF AMBLE WATER VAPOR. TO THE WEST DRIER AIR WAS ACCOMPANYING A SHORT WAVE RIDGE. AT THE SURFACE A PRE-FRONTAL TROUGH WAS MOVING ACROSS THE TRI-STATE AREA WITH A COLD FRONT LIKELY LOCATED OVER THE NEBRASKA PANHANDLE. BEHIND THE TROUGH NORTHERLY WINDS WERE GUSTY. LOWS WILL BE COOLER THAN LAST NIGHT AS A COOLER AIR MASS MOVES IN BEHIND THE FRONT. SUNDAY WARMER AIR RETURNS AS AN UPPER LEVEL SHORT WAVE RIDGE BUILDS INTO THE AREA.
903 PM EST SAT DEC 5 2015 LOW LEVEL MOISTURE WILL CONTINUE TONIGHT IN A PERSISTENT NE FLOW AROUND A HIGH PRESSURE CENTER TO THE NORTH. WHILE COASTAL NE FL WILL REMAIN FAIRLY STEADY WITH LOWS IN THE LOWER TO MID 60S.
COURTESY OF HIGH PRESSURE EXTENDING SW FROM THE MID ATLANTIC REGION. THE LIGHT SOUTHERLY FLOW AND THE CLOUDS ARRIVING SHOULD MAKE FOR A SOMEWHAT WARMER OVERNIGHT THAN HAS BEEN THE CASE THE PAST FEW NIGHTS. AS A COLD FRONT FROM THE MIDWEST STATES INTO SRN TX GRADUALLY APPROACHES. THE GREATEST -DIVQ ASSOCIATED WITH THIS WAVE OVER OUR AREA WILL OCCUR SUNDAY EVENING INTO THE OVERNIGHT HOURS WITH JUST A VERY WEAK SFC TROF REFLECTION INDICATED WITH THE UPR TROF PASSAGE.
A FAIRLY ZONAL UPPER LEVEL FLOW PATTERN THROUGH THE FORECAST PERIOD WITH SEVERAL FAST MOVING SHORT WAVE TROFS TO PASS NORTH OF ALABAMA.
A COLD FRONT WILL MOVE THROUGH THE FCST AREA THIS EVENING WITH WINDS SWITCHING TO NORTH 03Z GIVE OR TAKE AN HOUR. /ISSUED 259 PM CST SAT DEC 5 2015/ UPPER TROUGH WILL PUSH EAST ACROSS THE TEXAS PANHANDLE AND OKLAHOMA THIS EVENING. WHILE LOCALES IN THE SOUTHEASTERN SOUTH PLAINS INTO THE ROLLING PLAINS REMAIN IN THE LOW-MID 30S.
41 DRY AND PLEASANT CONDITIONS LOOK TO PERSIST THRU FCST PERIOD AS REGIME STAYS DOMINATED BY EAST CONUS RIDGE. OTHERWISE TEMPS SHOULD BE NEAR TO SLIGHTLY BELOW CLIMO NORMS TONIGHT THEN WARMER MORESO ACROSS NORTH GA SUNDAY NIGHT WITH AFOREMENTIONED CLOUD COVER.
938 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL RIDGE INTO THE FORECAST AREA FROM THE NORTH THROUGH SUNDAY.
A cold front will move across the area Sunday morning, with a band of lower clouds for a few hours just ahead of the front. /ISSUED 238 PM CST SAT DEC 5 2015/ High clouds starting to overspread area this afternoon in association with upper trough/jet streak approaching from the west. Weak cold front will push through Sunday morning in association with system.
942 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THE END OF THE WEEKEND. FREEZING FOG ADVISORY CONTINUES. WITH THE HIGH SHIFTING EAST AND A LIGHT SOUTHWEST FLOW.
723 PM MST SAT DEC 5 2015 UPPER TROUGH OVER EASTERN CO THIS AFTERNOON WITH INCREASING MID LEVEL SUBSIDENCE DEVELOPING FM WEST TO EAST ACROSS THE CWA. CLEARING SKIES TONIGHT AS A RIDGE OF HIGH PRESSURE MOVES OVER THE STATE. DRY AND WARMER SUNDAY WITH AN INCREASING WESTERLY FLOW ALOFT. THE AMS WILL BE DRY AND WARMER.
TEMPERATURES ARE IN THE LOWER TO MID 70S. IN THE LOW LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE NEAR THE BAHAMAS WILL RETREAT EASTWARD TONIGHT.
WITH 30S ACROSS N EL PASO COUNTY TO 50S ALONG THE LOWER ARK RIVER VALLEY AND 40S ALONG THE RATON MESA.
526 PM CST SAT DEC 5 2015 COLD FRONT HAS WORKED THROUGH THE CWA WITH NORTHWEST BEHIND THE FRONT. AS HIGH PRESSURE BUILDS IN. ALTHOUGH POCKETS OF COOLER TEMPS. TOMORROW WINDS BECOME SOUTHWESTERLY AND UPPER LEVEL RIDGE BUILDS IN BEHIND DEPARTING TROUGH. TEMPS SHOULD SURGE INTO THE LOWER TO MID 50S FOR MOST AREAS. SUNDAY NIGHT SEES A WEAK UPPER TROUGH MOVING INTO THE NORTHERN PLAINS IN ZONAL FLOW.
631 PM CST SAT DEC 5 2015 EARLY AFTERNOON SATELLITE IMAGERY IDENTIFIED THE UPPER LEVEL TROUGH ACROSS THE CENTRAL CONUS. ANY PRECIPITATION THAT DEVELOPS WILL COME FROM THE LOW LEVEL MOISTURE WITH A STRATUS DECK THAT IS FORECAST TO DEVELOP LATER THIS EVENING AND OVERNIGHT. HIGHS ON SUNDAY WILL BE A FEW DEGREES COOLER THAN TODAY WITH LIGHT WINDS AND LITTLE MIXING. WITH WEAK UPPER LEVEL FLOW AND BROAD RIDGING PERSISTING THROUGH MUCH OF THE PERIOD.
635 PM EST SAT DEC 5 2015 DRY AND PLEASANT CONDITIONS LOOK TO PERSIST THRU FCST PERIOD AS REGIME STAYS DOMINATED BY EAST CONUS RIDGE. OTHERWISE TEMPS SHOULD BE NEAR TO SLIGHTLY BELOW CLIMO NORMS TONIGHT THEN WARMER MORESO ACROSS NORTH GA SUNDAY NIGHT WITH AFOREMENTIONED CLOUD COVER.
536 PM CST SAT DEC 5 2015 High pressure is sliding off to the east this afternoon, with south/southeasterly winds across Central Illinois. High pressure and light winds setting up quite the inversion over the region yet again today, effectively trapping llvl moisture and setting up for foggy nights. Temps dropping into the lower 30s, just below freezing before dawn. Not much of a difference across the surface obs this afternoon, but the dense fog has been more likely in the east, closer to the ridge axis.
621 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL BUILD IN OVER THE NORTHEAST TONIGHT THROUGH TOMORROW.
657 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL BUILD IN OVER THE NORTHEAST TONIGHT THROUGH TOMORROW.
635 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL PROVIDE DRY. HOWEVER MUCH OF NORTHWESTERN NEW YORK FROM THE HIGH PEAKS WESTWARD HAS REMAINED LOCKED IN UNDER LOW OVERCAST STRATUS DECK. SOME STELLAR UNDERCAST WAS OBSERVED TODAY FROM THE HIGHER MOUNTAIN SUMMITS.
928 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL PROVIDE DRY.
A cold front will push across the region shifting the winds to north and northwest. Wind speeds will generally stay below 12 knots after cold front passage through tonight, though some gustiness can be expected immediately after frontal passage as well as after sunrise Sunday, primarily over parts of southeast New Mexico and the Permian Basin including KHOB and KMAF terminals. /issued 237 PM CST SAT DEC 5 2015/ Surface observations show a cold front moving into the Oklahoma Panhandle that will move south overnight and arrive in the area between midnight and sunrise. The supporting upper trough is well north of the area and embedded in zonal westerly flow so there will not be much cold air.
443 PM MST SAT DEC 5 2015 UPPER TROUGH IS CURRENTLY MOVING INTO NEBRASKA WITH SOME BREEZY CONDITIONS ACROSS THE PLAINS. TEMPS WILL BE 10-15 DEGREES WARMER ON SUNDAY.
643 PM EST SAT DEC 5 2015 AVIATION A QUIET WEATHER PATTERN WILL CONTINUE FOR SOUTHWEST LOWER MICHIGAN WITH NO MAJOR LOW PRESSURE SYSTEMS EXPECTED OR COLD INTRUSIONS OF AIR IN THE NEAR FUTURE.
WIDESPREAD RIDGING WILL MOVE ACROSS THE FORECAST FOR SUN THRU THE BEGINNING OF THE WEEK. THIS IS REFLECTED IN THE COOLER MAX/MIN TEMPS FOR NEXT SAT.
954 PM CST SAT DEC 5 2015 THE WESTERN EDGE OF THE HIGHER CLOUDS CLEARED EAST OF THE FCST AREA. AND DEWPOINTS ARE IN THE LOW/MID 30S OVER THE SNOW FIELD THIS AFTERNOON. TEMPS WILL BE WELL ABOVE NORMAL GENERALLY IN THE LOW/MID 20S. TEMPERATURES WILL BE VERY SIMILAR TO TODAY AND PERHAPS A FEW DEGREES WARMER WITH 925MB TEMPS NEAR +10C BY AFTERNOON.
A WEAK COLD FRONT WAS PUSHING THROUGH THE OK AND TX PANHANDLES. THIS DIRECTION COULD PULL SOME OF THAT MOISTURE NORTHEAST AT LEAST INTO CENTRAL TX AS THE COLD FRONT APPROACHES. THE COLD FRONT WILL COME THROUGH DRY AND BRING ONLY SLIGHTLY DRIER AIR AND BREEZY CONDITIONS SUNDAY AFTERNOON.
FCST SOUNDINGS HINT A FEW025 THROUGH SUNDAY AS A WEAK COLD FRONT CROSSES THE REGION. /ISSUED 257 PM CST SAT DEC 5 2015/ SURFACE ANALYSIS THIS AFTERNOON HAS HIGH PRESSURE AXIS STRETCHING FROM THE GREAT LAKES THROUGH THE OHIO RIVER VALLEY INTO E TEXAS. LOW PRESSURE OVER THE TX PANHANDLE WILL KEEP A TIGHT PRESSURE GRADIENT OVER THE PLAINS. WATER VAPOR IMAGERY SHOWS ONE UPPER LEVEL TROUGH MOVING OUT OF THE ROCKIES INTO THE PLAINS MOST LIKELY RESPONSIBLE FOR CYCLOGENESIS OVER THE TX PANHANDLE. A SECOND UPPER LEVEL TROUGH WAS OUT IN THE PACIFIC MOVING TOWARDS THE COAST OF CALIFORNIA. BOTH UPPER LEVEL TROUGHS MENTIONED BEFORE WILL MOVE ACROSS THE PLAINS. THE FIRST WILL SUPPORT A COLD FRONT PUSHING THROUGH THE AREA TOMORROW WITH MAINLY JUST A WIND SHIFT AND SOME DRIER AIR. THE SECOND UPPER LEVEL TROUGH WILL HAVE LITTLE IMPACT.
518 PM EST SAT DEC 5 2015 HIGH PRESSURE CENTERED SOUTH OF NEW ENGLAND WILL REMAIN STATIONARY THROUGH SUNDAY.
BETTER MOISTURE POOLING AHEAD OF AN APPROACHING COLD FRONT WILL RESULT IN IFR CIGS AGAIN TOMORROW MORNING FOR KDRT. UPPER AIR ANALYSIS THIS MORNING SHOWED A WEAK RIDGE EXITING TEXAS AND A TROUGH MOVING THROUGH THE ROCKIES. HIGH PRESSURE NOSED DOWN THROUGH EAST TEXAS ACROSS OUR CWA. THE UPPER TROUGH WILL MOVE ACROSS NORTH TEXAS DURING THIS PERIOD AND ANOTHER RIDGE WILL BUILD IN BEHIND IT.
637 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THE END OF THE WEEKEND. HAVE GONE AHEAD AND ISSUED THE FREEZING FOG ADVISORY. EXPECTING TEMPS TO DROP BELOW FREEZING THEREFORE A FREEZING FOG ADV WAS ISSUED OVER A DENSE FOG.
759 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL CROSS THE REGION TONIGHT THROUGH SUNDAY.
WATER VAPOR IMAGERY SHOWS A WEAK SHORT WAVE TROUGH SOUTHWEST OF LAREDO MOVING TO THE NORTHEAST. HIGH PRESSURE WILL REMAIN OVER THE AREA OVERNIGHT BUT MOISTURE RETURN COMBINED WITH LIGHT WINDS MAY LEAD TO BRIEF MVFR VISIBILITIES FOR ALI-VCT BTWN 08Z-12Z.
640 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL PROVIDE DRY. HOWEVER MUCH OF NORTHWESTERN NEW YORK FROM THE HIGH PEAKS WESTWARD HAS REMAINED LOCKED IN UNDER LOW OVERCAST STRATUS DECK. SOME STELLAR UNDERCAST WAS OBSERVED TODAY FROM THE HIGHER MOUNTAIN SUMMITS.
631 PM EST SAT DEC 5 2015 HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH THE END OF THE WEEKEND. WE HAVE HAD FOG AND STATUS THE LAST TWO NIGHTS AND THE AREAS TO THE WEST ON THE EDGE OF THE RIDGE HAD FOG AND STRATUS AS WELL.
HIGH PRESSURE WILL REMAIN OVER THE AREA OVERNIGHT BUT MOISTURE RETURN COMBINED WITH LIGHT WINDS MAY LEAD TO BRIEF MVFR VISIBILITIES FOR ALI-VCT BTWN 08Z-12Z. MAIN ISSUES FOR TONIGHT WILL BE AMOUNT OF CLOUD COVER AND THE POSSIBILITY OF FOG/DZ AHD OF A WEAK COLD FRONT. MODELS PROG NEAR 1 INCH PWATS TO SURGE N INTO S TX TONIGHT AND COMBINE WITH THE TAIL END OF AN UPPER LEVEL LOW. THE CTR OF THE UPPER LOW AND THE ASSOCIATED JET WILL BE FAR N OF THE CWA. THE WEAK COLD FRONT WILL NOT BRING MUCH CAA BUT WILL MAINTAIN THE COOL TEMPS ACROSS S TX. MN TEMPS SUN NIGHT WILL BE A DEGREE OR TWO COOLER THAN TONIGHT'S FCSTD VALUES.
CLEAR AND CALM CONDITIONS WILL BE THE RULE AS HIGH PRESSURE LIES ACROSS THE APPALACHIANS.
A WEAK COLD FRONT HAVING JUST SLIPPED PAST BPT WILL BE MOVING THRU LCH AND AEX OVER THE NEXT COUPLE OF HOURS, LFT AND ARA AROUND MIDNIGHT. AN AREA OF LOW PRESSURE IS MOVING EAST ACROSS NORTH LA AND SOUTH AR THIS AFTERNOON. STRETCHING SW FROM THE LOW A WEAK COLD FRONT IS DRAPED INTO EAST TX.
WEAK FRONT MOVES THROUGH WITH RIDGE AND LIGHTER WINDS BUILDING IN BEFORE DAYBREAK. ALTHOUGH RADIATIONAL COOLING COULD ALLOW SURFACES TO DROP BELOW FREEZING. GIVEN THAT HAVE HOISTED FROST ADVISORY FOR CENTRAL KS WHERE POTENTIAL FOR TEMPERATURES CLOSER TO FREEZING IS MOST LIKELY. THU: RELATIVELY QUIET WEATHER ANTICIPATED ON FRI AS RIDGE AXIS DRIFTS ACROSS THE AREA. TEMPERATURES WILL BE COOLER BUT A LOT RIDING ON AMOUNT OF TRANSIENT MID LEVEL CLOUDS DURING THE DAY. WPC LEANED TOWARD SLOWER ENSEMBLES AND GIVEN STRENGTH/DEPTH OF CURRENT UPPER LOW OVER NORTHERN PLAINS. THE MAIN CONCERN WILL BE THE ARRIVAL OF A REINFORCING COLD FRONT DROPPING SOUTH ACROSS THE FORECAST AREA LATER THIS EVENING.
DID UP THE LOWS A TOUCH BASED ON THE LATEST TRENDS IN OBSERVATIONS. MORE SHOWER ACTIVITY HAS POPPED UP FURTHER TO OUR NORTHWEST ASSOCIATED WITH THE SURFACE FRONT AND A MID-LEVEL SHORT WAVE TROUGH ROTATING THROUGH THE OHIO VALLEY. BOUNDARY PUSHES OFF TO OUR EAST TOMORROW MORNING WHICH WILL USHER IN SOME DRYING AND FAIR WEATHER AS HIGH PRESSURE BEGINS TO BUILD INTO OHIO VALLEY.
Secondary cold front about to enter the northwest part of the CWA early this afternoon. Deepening upper low is dropping southeast and was centered over southwest Minnesota early this afternoon. Punch of dry air across the northern CWA will keep skies mostly clear overnight, but the large stratocumulus shield to our north will be sinking southward in the wake of the low passage, and clouds will be increasing toward sunrise north of Peoria. A deep upper low over the eastern Dakotas will progress over lower Michigan by 12z/7am Thursday. Cold air diving south behind the low will create a chilly/blustery day across central Illinois.
1230 AM EDT THU OCT 29 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS THROUGH THIS MORNING. SCATTERED SHOWERS ARE EXPECTED TO CONTINUE TONIGHT AS A COLD FRONT CROSSES THE REGION.
THE MAIN AVIATION CONCERNS ARE EXPECTED TO BE WINDS SHIFTING MORE TO THE SOUTH BEFORE A WEAK COLD FRONT MOVES INTO THE AREA OVERNIGHT.
1200 AM CDT THU OCT 29 2015 12Z UPPR AIR ANALYSIS INDICATED A DEEP TROUGH OVER THE CENTRAL US WITH THE H5 CIRCULATION CENTER OVER SW MANITOBA. SOME MIXING IS EXPECTED THROUGH THE NIGHT THOUGH AND THIS CREATES CONCERNS WITH FREEZING TEMPERATURES. CLEAR SKIES AND DRY AIR WILL LIKELY LEAD TO A QUICK FALL IN TEMPERATURES OVER OUR ERN CWA AND TEMPERATURES ON THU NIGHT MIGHT BE NEAR FREEZING FOR THESE AREAS. TOWARD THE END OF THE FORECAST RANGE THE WESTERN US TROUGH MAY START TO PROGRESS EWD ENOUGH TO ALLOW FOR A COLD FRONT TO NEAR THE AREA WITH A SCHC OF SHOWERS TOWARD NEXT WED.
A WEAKENING UPPER LEVEL LOW WILL MOVE THRU THE MID SOUTH THIS EVENING AND HELP TOUCH OFF A FEW LIGHT SHOWERS THE REST OF THIS AFTERNOON AND THE FIRST HALF OF TONIGHT.
LIGHT /AND VARIABLE AT TIMES/ SOUTHERLY WINDS IS STILL EXPECTED TO VEER TO THE EAST NORTHEAST AT KCDS THURSDAY MID-MORNING IN RESPONSE TO A WEAK COLD FRONT. UNTIL THEN WILL SEE A LOW AMPLITUDE UPPER RIDGE MOVE FROM THE 4-CORNERS THIS AFTN TO THE SRN HIGH PLAINS THURSDAY AFTN. HIGH PRESSURE JUST SOUTH OF THE FCST AREA THIS AFTN WILL SHIFT EWD TONIGHT AND WILL BE QUICKLY FOLLOWED BY A WEAK COLD FRONT INTO THE NRN ZONES THURSDAY MORNING AS AN UPPER LEVEL LOW MOVES ACROSS THE UPPER MS VALLEY. HIGH TEMPS SHOULD ACTUALLY BE WARMER DESPITE THE FRONT WITH PROGGED HEIGHTS AND THICKNESSES SUGGESTING ABOUT FIVE DEGREES WARMER THAN TODAY. UPPER LOW WILL BE IN FULL THROTTLE ACROSS THE DESERT SOUTHWEST INTO SONORA THURSDAY EVENING.
BUT WARMER LOW LEVEL AIR ADVECTING IN FROM THE NORTHEAST. A TIGHTENING PRESSURE GRADIENT AROUND THIS LOW WILL DEVELOP OVER THE RED RIVER VALLEY EARLY THIS EVENING AND REMAIN THRU 06Z BEFORE GRADIENT SLIPS SOUTH. NEXT BATCH OF PRECIP MOVING BACK SOUTHWEST AROUND THE UPPER LOW IN SRN MN AS ADVERTISED BY MODELS AND EXPECT TO SEE PRECIP SPREAD BACK SOUTH THRU THE RRV LATE AFTN/EVENING ENDING LATER TONIGHT. AS FOR PTYPE WITH WARMER AT AT 925 MB MOVING IN AS WELL AS SFC WARMING DO EXPECT THE WET SNOW TO MIX WITH OR CHANGE TO A MAINLY RAIN EVENT IN AREAS THAT GOT THE 1-2 INCHES OF SNOW THIS MORNING (BEMIDJI-BAGLEY-ITASCA-PARK RAPIDS).
AHEAD OF A SFC COLD FRONT CROSSING OVER THE MS RIVER VALLEY, ISOLATED SHOWERS HAVE DEVELOPED AND ARE MAINLY PROJECTED TO MOVE FROM CENTRAL MS TO CENTRAL AL. A COLD FRONT AND UPPER LEVEL DISTURBANCE WILL PRODUCE ONE OR MORE CLUSTERS OF SHRA TONIGHT WHICH MAY IMPACT KHSV AND POSSIBLY KMSL. PREVAILING WX SHOULD BE VFR, ALTHOUGH VSBYS MAY LOWER TO ~5SM (MVFR) FOR A FEW HOURS DUE TO BR DEVELOPMENT BEFORE THE COLD FRONT PASSAGE ~15-16Z THURSDAY.
1136 PM CDT WED OCT 28 2015 A WEAK COLD FRONT WILL PUSH ACROSS THE FORECAST AREA TONIGHT AND THURSDAY MORNING WITH LITTLE IN THE WAY OF FANFARE.
A COLD FRONT MOVING EAST ACROSS THE MID SOUTH THIS EVENING HAS REACHED THE MISSISSIPPI RIVER AS OF DISCUSSION TIME. /ISSUED 249 PM CDT WED OCT 28 2015/ SCATTERED SHOWERS ARE TRACKING TOWARD THE MIDSOUTH AHEAD OF A COLD FRONT. WITH THE BEST CHANCES AHEAD OF THE COLD FRONT IN NORTHEAST MISSISSIPPI AND NEAR THE TENNESSEE RIVER IN WEST TENNESSEE. A SECONDARY COLD FRONT WILL MOVE ACROSS THE REGION TOMORROW AFTERNOON.
CHATTANOOGA AIRPORT, TN 57 71 44 65 / 40 30 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 54 70 42 63 / 30 30 0 0 OAK RIDGE, TN 55 69 41 62 / 30 20 0 0 TRI CITIES AIRPORT, TN 51 68 38 59 / 30 30 0 0.
1037 PM EDT WED OCT 28 2015 A COLD FRONT WILL CROSS THE AREA LATER TONIGHT.
A TIGHTENING PRESSURE GRADIENT AROUND THIS LOW WILL DEVELOP OVER THE RED RIVER VALLEY EARLY THIS EVENING AND REMAIN THRU 06Z BEFORE GRADIENT SLIPS SOUTH. NEXT BATCH OF PRECIP MOVING BACK SOUTHWEST AROUND THE UPPER LOW IN SRN MN AS ADVERTISED BY MODELS AND EXPECT TO SEE PRECIP SPREAD BACK SOUTH THRU THE RRV LATE AFTN/EVENING ENDING LATER TONIGHT. AS FOR PTYPE WITH WARMER AT AT 925 MB MOVING IN AS WELL AS SFC WARMING DO EXPECT THE WET SNOW TO MIX WITH OR CHANGE TO A MAINLY RAIN EVENT IN AREAS THAT GOT THE 1-2 INCHES OF SNOW THIS MORNING (BEMIDJI-BAGLEY-ITASCA-PARK RAPIDS).
911 PM EDT WED OCT 28 2015 SHOWERS WILL BE SCATTERED OVERNIGHT INTO THURSDAY WITH COOLER TEMPERATURES TO END THE WORK WEEK. FIRST WIND SHIFT IS EAST OF THE RIDGES AND HAS TAKEN DEEP MOISTURE WITH IT. WITH BEST SHOWER COVERAGE NOW ACROSS THE SOUTHEAST RIDGES. A DEEP UPPER LOW WILL THEN DRIVE MAIN COLD FRONT ACROSS REGION EARLY THURSDAY WITH ANOTHER ROUND OF SCATTERED SHOWERS. HIGH PRESSURE WILL BEGIN TO BUILD ACROSS THE REGION THURSDAY NIGHT WITH COOLER TEMPERATURES AND DIMINISHING WINDS.