Aikyam-Lab/Synoptic-Bench huggingface dataset:
1141 AM EDT FRI OCT 30 2015 HIGH PRESSURE WILL BE OVER THE REGION TODAY PROVIDING PARTLY SUNNY AND DRY CONDITIONS. HIGH TEMPERATURES WILL RANGE FROM THE LOWER 50S IN SOUTHERN MICHIGAN TO THE UPPER 50S IN SOUTHWESTERN INDIANA. LOW TEMPERATURES TONIGHT WILL BE IN THE LOWER 40S. WEAK LOW LEVEL CONVERGENCE AMID ABUNDANT MOISTURE TRAPPED UNDER INVERSION MAY CONTINUE TO GENERATE SOME LIGHT DRIZZLE/SPRINKLES THROUGH THE EARLY MORNING AS SURFACE PRESSURE TROUGH PASSES. EXPECT AT LEAST SOME STRATOCU FOR MUCH OF THE DAY GIVEN PERSISTENT THERMAL TROUGH AND LAKE MOISTURE PLUME BUT WILL STILL BE MUCH WARMER THAN YESTERDAY. DECREASING CLOUDS AND SLOWLY MODERATING THERMAL PROFILES SHOULD ALLOW LATE DAY HIGHS IN THE LOW TO MID 50S. SOUTHWEST FLOW AND WARM/MOIST AIR ADVECTION RAMP UP OVERNIGHT AS NEXT LONGWAVE TROUGH APPROACHES.
THE LOW LEVEL FLOW IS STRONGLY ANTICYCLONIC AND WILL REMAIN SO THIS AFTERNOON AS THE CENTER OF HIGH PRESSURE TRACKS ACROSS THE OHIO VALLEY. ISSUED 720 AM EDT FRI OCT 30 2015 MVFR TO LOWER VFR BKN CIGS WILL BE COMMON THIS FORECAST WITH SCT CONDITIONS MORE THE EXCEPTION AS NORTHWEST CYCLONIC FLOW BECOMES LIGHT SOUTH/SOUTHWEST TONIGHT AS HIGH PRESSURE BUILDS TO THE EAST. TODAY AND TONIGHT QUIET AND COOL WEATHER WILL PERSIST INTO TONIGHT AS HIGH PRESSURE BUILDS ACROSS THE AREA.
/ISSUED 414 AM CDT FRI OCT 30 2015/ A STRONG UPPER TROUGH CONTINUES TO DIG ESE FROM THE SWRN CONUS INTO NRN MX. BROAD AREA OF LARGE SCALE LIFT AHEAD OF THE TROUGH HAS LED TO THE DEVELOPMENT OF TWO LARGE AREAS OF SHWRS/TSTMS. SHWRS/TSTMS WILL GRADUALLY SPREAD INTO THE ARKLATEX REGION THIS AFTERNOON AS THE UPPER TROUGH PROGRESSES EAST.
SURFACE ANALYSIS THIS MORNING PLACES A 1023 MB RIDGE OF HIGH PRESSURE OVER SOUTHERN ILLINOIS/WESTERN KENTUCKY AND SOUTHERN INDIANA. 1020 MB HIGH PRESSURE IS CENTERED OVER MISSOURI THIS MORNING. HIGH PRESSURE WILL MOVE INTO THE OHIO VALLEY TODAY. HIGH TEMPS WILL RANGE FROM THE LOWER 60S ALONG THE KY/MO BORDERS TO AROUND 70 SOUTH.
1125 AM CDT FRI OCT 30 2015 WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW MOVING INTO SOUTHERN NEW MEXICO LATE THIS MORNING.
HIGH PRESSURE IS MOVING EASTWARD OVER MISSOURI. THE HIGHEST PRECIPITATION TOTALS WILL BE OVER OKLAHOMA AND TEXAS WHERE MOISTURE WILL BE MORE PREVALENT.
856 AM EDT FRI OCT 30 2015 SECONDARY PUSH OF COOLER AIR WILL MOVE INTO THE REGION TODAY. AS HIGH PRESSURE BUILDS INTO THE NORTHEAST. THAT HIGH PRESSURE WILL BE SHORT LIVED.
THE HIGHEST TOTALS HAVE BEEN CONFINED TO ALONG AND EAST OF I-44 TO I-35 SOUTH OF THE OKC METRO. MOST OF THE RAIN IS LIGHT AT THE MOMENT, BUT WITH THE APPROACH OF THE LARGE-SCALE UPPER TROUGH FROM THE WEST AND INCREASING LOWER AND MID-LAYER MOISTURE TODAY, RAINFALL IS EXPECTED TO BE WIDESPREAD AND PERSISTENT. FLOW OVER THE LOWER- LAYER FRONT NEAR THE RED RIVER TODAY IS EXPECTED TO ENHANCE RAINFALL IN THIS AREA, ESPECIALLY WITH THE THE INCREASING 850 JET THROUGH THE DAY FROM NORTH CENTRAL TEXAS INTO CENTRAL OKLAHOMA.
SHOWERS ASSOCIATED WITH A DEVELOPING WARM FRONT HAVE MOVED IN FASTER THAN EXPECTED. ESPECIALLY ON RIDGETOPS AND IN SOUTHEAST OREGON.
720 AM EDT FRI OCT 30 2015 MVFR TO LOWER VFR BKN CIGS WILL BE COMMON THIS FORECAST WITH SCT CONDITIONS MORE THE EXCEPTION AS NORTHWEST CYCLONIC FLOW BECOMES LIGHT SOUTH/SOUTHWEST TONIGHT AS HIGH PRESSURE BUILDS TO THE EAST. TODAY AND TONIGHT QUIET AND COOL WEATHER WILL PERSIST INTO TONIGHT AS HIGH PRESSURE BUILDS ACROSS THE AREA.
755 AM EDT FRI OCT 30 2015 A WEAKENING COLD FRONT WILL PUSH SOUTH INTO PENNSYLVANIA TODAY. THEN HIGH PRESSURE WILL BUILD EAST FROM THE OHIO VALLEY TONIGHT AND SATURDAY.
1148 AM EDT FRI OCT 30 2015 A WEAKENING COLD FRONT WILL PUSH SOUTH INTO PENNSYLVANIA TODAY. THEN HIGH PRESSURE WILL BUILD EAST FROM THE OHIO VALLEY TONIGHT AND SATURDAY.
MOST OF THE RAIN IS LIGHT AT THE MOMENT, BUT WITH THE APPROACH OF THE LARGE-SCALE UPPER TROUGH FROM THE WEST AND INCREASING LOWER AND MID-LAYER MOISTURE TODAY, RAINFALLIS EXPECTED TO BE WIDESPREAD AND PERSISTENT. FLOW OVER THE LOWER- LAYER FRONT NEAR THE RED RIVER TODAY IS EXPECTED TO ENHANCE RAINFALL IN THIS AREA, ESPECIALLY WITH THE THE INCREASING 850 JET THROUGH THE DAY FROM NORTH CENTRAL TEXAS INTO CENTRAL OKLAHOMA.
/ISSUED 344 AM EST TUE FEB 16 2016/ WE CAN TAKE A BREATHER FOLLOWING THE FREEZING RAIN/THUNDERSTORM COMBO WEDGE EVENT. NOW FINALLY ERODING TO ABOVE FREEZING IN THE NE AND PRECIP PUSHING EAST OF THE CWA WITH THE DEPARTING LOW EARLY THIS MORNING. FOR NOW THE THERMAL COLUMN LOOKS A BIT TOO WARM FOR ANYTHING OTHER THAN RAIN SHOWERS THOUGH A MIX TO SOME LIGHT SNOW AT THE HIGHER ELEVATIONS CANNOT BE RULED OUT BEFORE LATE THIS EVENING /NO IMPACTFUL ACCUMULATIONS EXPECTED IF IT DOES MIX FOR A FEW HOURS/.
A shallow warm layer within the expected sub-freezing column will support the development of sleet initially.
A REINFORCING SURGE OF HIGH PRESSURE WILL MOVE SOUTHEAST ACROSS THE STATE TONIGHT INTO WEDNESDAY MORNING. FOG WILL BE MORE LIKELY AS DEWPOINTS STAY IN THE LOWER 50S. EXCEPT FOR SLIGHTLY COOLER TEMPS IN THE NORTHEAST.
A COLD FRONT HAS EXITED THE PANHANDLES THIS MORNING AND NORTH WINDS 5 TO 15 KNOTS WILL INCREASE TO AROUND 10 TO 20 KNOTS WITH OCCASIONAL HIGHER GUSTS BY 14Z TO 16Z TODAY. /ISSUED 410 AM CST TUE FEB 16 2016/ THE COLD FRONT HAS PUSHED THROUGH THE AREA HOWEVER IT BECAME SO MODIFIED THAT TEMPS ACTUALLY WARMED AFTER THE PASSAGE. TEMPS TODAY WILL BE SIMILAR TO SLIGHTLY COOLER THAN YESTERDAY WITH NORTHERLY WINDS AND SOME HIGH CLOUDS EARLY IN THE DAY.
924 AM EST TUE FEB 16 2016 LOW PRESSURE OVER THE AREA WILL CONTINUE TO LIFT NORTH THROUGH THE MIDDAY HOURS. A WEAK COLD FRONT CROSSES FROM THE WEST TONIGHT.
530 AM CST TUE FEB 16 2016 THE POTENTIAL FOR FREEZING DRIZZLE TONIGHT INTO WEDNESDAY MORNING WILL BE THE MAIN FORECAST CHALLENGE. WITH MOST READINGS IN NORTH DAKOTA HOLDING IN THE UPPER 20S AND SEVERAL IN THIS CWA IN THE LOWER 30S. THERE IS A WARM LAYER ON THE WESTERN SIDE OF THE PCPN WHICH COULD PRODUCE FREEZING RAIN. THE GFS ALSO SUPPORTS FREEZING DRIZZLE AS THERE IS A LACK OF ICE CRYSTALS ALOFT. WILL ADD PATCHY FREEZING DRIZZLE INTO THE FORECAST FOR LATER TONIGHT.
With surface temps initially in the 20s and lower 30s, some light freezing rain may occur as the precip arrives this morning. Icing will be minimal, as temps are expected to climb above freezing by mid to late morning. Instead, a Special Weather Statement addressing the low visibilities has been issued. A deep upper trough coming onshore across the Pacific Northwest will induce pronounced ridging downstream over the central and eastern CONUS, resulting in much warmer weather.
AT THE SURFACE A COLD FRONT HAS PUSHED THROUGH OUR CWA WITH HIGH PRESSURE NOW BUILDING FROM THE NEBRASKA PANHANDLE INTO NE COLORADO AND NW KANSAS.
THE HIGH RESOLUTION MODELS HINTING AT SOME HIT AND MISS SPRINKLES/LIGHT SNOW SHOWERS DOWN THE JAMES RIVER VALLEY THROUGH ABOUT 15Z BUT NOT ENOUGH TO NEED A MENTION AT THIS TIME. TEMPERATURES WILL REMAIN FAIRLY STEADY TODAY AS COOLER AIR WORKS SOUTH.
TODAY THROUGH WEDNESDAY NIGHT ANOTHER DAY OF NORTHWEST FLOW ACROSS THE NRN PLAINS AS A LONGWAVE TROUGH REMAINS OVER THE ERN CONUS. HIGH PRESSURE WILL MOVE INTO TONIGHT AS UPPER RIDGING BUILDS ACROSS THE CNTRL CONUS.
HIGH PRESSURE IS THE MAIN WEATHER FEATURE FOR THE REMAINDER OF THIS WEEK. DRY COLD FRONT PASSAGE LATER TONIGHT.
ONCE THE LINE CLEARS VFR CONDITIONS WILL PREVAIL AND WINDS WILL SHIFT TO THE WEST AND THEN THE NORTHWEST AS THE COLD FRONT CONTINUES TO MOVE AWAY FROM THE AREA. THE RIDGE THEN SLIDES ACROSS THE EASTERN US INTO THE WESTERN ATLANTIC FOR THE UPCOMING WEEKEND AS A MID LEVEL RIDGE BUILDS ACROSS THE GULF AND FL. THESE FEATURES WILL KEEP ANY MEANINGFUL TROUGHS AND FRONTS WELL NORTH OF THE REGION. WINDS INCREASE OUT OF THE EAST-NORTHEAST LATE WEEK AS AN AREA OF HIGH PRESSURE MOVES OFF THE EAST COAST.
BUT WARMER TEMPS WITH MORE CLOUDS. A MID-LEVEL TROUGH WILL EJECT INTO THE PLAINS LATER THUR AND THUR NIGHT. ANOMALOUSLY WARM 10-14C AIR AT 850 MB IS FORECAST TO REACH THE S RRV AHEAD OF THE UPPER TROUGH.
602 AM CST TUE FEB 16 2016 FOR 12Z TAFS /ISSUED 413 AM CST TUE FEB 16 2016/ THE COLD FRONT THAT BROUGHT SEVERAL PERIODS OF MODERATE TO HEAVY RAINFALL YESTERDAY HAS MOVED TO THE EAST AND SOUTH OF THE AREA. THE AXIS OF THE ASSOCIATED UPPER LEVEL TROUGH IS SITUATED JUST OVER THE AREA AND WILL QUICKLY MOVE EAST BY SUNRISE. WITH TEMPERATURES IN THE LOWER 40S. THESE LOW CIGS MAY DROP BELOW 1000 FT AND CAUSE VISIBILITY PROBLEMS IN THE HIGHER TERRAIN. AND APPROACH THE LOWER MS VALLEY BY MID MORNING. AND CAA WILL CONTINUE AS THE HIGH PRESSURE BUILDS IN AT THE SURFACE. WITH LOWS WEDNESDAY NIGHT DROPPING NEAR OR JUST BELOW FREEZING. UPPER LEVEL RIDGING WILL THEN BUILD IN ACROSS THE REGION.
AT THE SURFACE A WEAK AREA OF LOW PRESSURE IS REFLECTED WITH THE MID LEVEL DISTURBANCE TRACKING EASTWARD ACROSS NORTHERN SECTIONS OF AL AND GA LATER TODAY AND TONIGHT. AS FOR TEMPS WILL LEAN TOWARDS THE WARMER MAV GUIDANCE FOR HIGHS TODAY DUE TO BETTER SUNSHINE FOR MOST AREAS BY THIS AFTERNOON AND THE LOWER MAV NUMBERS FOR LOWS TONIGHT DUE TO MOSTLY CLEAR SKIES AND LIGHTER SURFACE WINDS BY EARLY WED MORNING.
BUT THEN A SIGNIFICANT CHANGE IN THE WEATHER IS EXPECTED TO BEGIN ON WEDNESDAY AS AN APPROACHING STORM SYSTEM BRINGS MUCH COOLER TEMPERATURES AND INCREASING CHANCES OF RAIN TO THE FORECAST AREA.
426 AM CST TUE FEB 16 2016 5H TROUGH AXIS EAST OF THE REGION. CURRENTLY OVER THE LOWER MS RIVER VALLEY. A COOL AND CLEAR WEDNESDAY MORNING IN THE LOWER TO MIDDLE 40S WILL WARM INTO THE SLIGHTLY COOLER AVERAGE (INLAND) MID 70S (COAST) LOW 70S UNDER MOSTLY SUNNY SKIES.
A cold front was entering northeast OK early this morning and will quickly move through with northwest winds increasing across all TAF sites.
346 AM PST TUE FEB 16 2016 HIGH PRESSURE WILL CONTINUE TO DOMINATE THE REGION TODAY RESULTING IN ABOVE NORMAL DAYTIME HIGH TEMPERATURES AS WELL AS EARLY MORNING FOG.
THE 09Z SURFACE ANALYSIS SHOWED ANOTHER WEAK COLD FRONT EXTENDING FROM NORTHEASTERN KANSAS SOUTHWEST THROUGH THE TEXAS PANHANDLE. THE NORTHWESTERLY FLOW ALOFT ACROSS TEXAS WILL COME TO AN END DURING THE NEXT COUPLE OF DAYS AS THE UPPER TROUGH ACROSS THE EASTERN UNITED STATES MOVES EASTWARD AND AN UPPER LEVEL RIDGE BUILDS EASTWARD ACROSS THE SOUTHERN PLAINS.
NO ISSUES WITH WINDS EXPECTED FOR TUE NIGHT/WED WITH RIDGING ALOFT.
613 AM EST TUE FEB 16 2016 LOW PRESSURE MOVES OUT OF THE AREA THIS MORNING. ANOTHER LOW PRESSURE SYSTEM SKIRTS SOUTHERN PORTIONS OF THE AREA TONIGHT. LOW PRESSURE WILL EXIT THE AREA FIRST THING THIS MORNING. POCKETS OF FREEZING RAIN HAD BECOME MINIMAL IN POCAHONTAS COUNTY AS SUB FREEZING TEMPERATURES WERE ALL BUT ERADICATED THERE. DRIVEN BY A VIGOROUS UPPER LEVEL S/W TROUGH.
BAND OF SHOWERS AND STORMS AHEAD OF THE WEAK COLD FRONT PUSHED OFFSHORE EARLY THIS MORNING.
AN APPROACHING TROUGH OF LOW PRESSURE WILL BRING MUCH STRONGER ONSHORE FLOW WITH STRONG GUSTY SOUTHWEST TO WEST WINDS IN THE MOUNTAINS AND DESERTS.
HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY. THIS HIGH WILL SHIFT EAST WEDNESDAY AHEAD OF THE NEXT PACIFIC STORM SYSTEM.
The amplified pattern aloft will stay in place today, with a longwave trough draped across the eastern CONUS and mostly zonal flow along the Gulf coast.
TONIGHT WITH LOW TEMPERATURES IN 50S THE THE LOWER 60S ALONG THE COAST.
OTHERWISE A COLD FRONT WILL SWEEP THROUGH THE WESTERN GREAT LAKES TODAY. WITH THE AFTERNOON ARRIVAL OF THE COLD FRONT HIGHS TODAY ARE EXPECTED TO GET INTO THE LOWER TO MIDDLE 30S ACROSS MUCH OF THE REGION. BEHIND THE COLD FRONT TONIGHT LOWS WILL FALL INTO THE SINGLE DIGITS ABOVE ZERO ACROSS THE NORTH. HOWEVER ADDITIONAL CLOUDS WOULD KEEP THINGS A BIT WARMER. WEAK RIDGING SHOULD KEEP THE WEATHER QUIET AS LAKE EFFECT SNOW ENDS ACROSS VILAS COUNTY ON WEDNESDAY. WITH A COOLER AIRMASS IN PLACE HIGHS WEDNESDAY SHOULD BE CONFINED TO THE LOWER TO MIDDLE 20S.
330 AM PST TUE FEB 16 2016 HOT AND DRY WEATHER WILL CONTINUE THROUGH TUESDAY DUE TO HIGH PRESSURE AND WEAK OFFSHORE FLOW. A TROUGH OF LOW PRESSURE WILL BRING COOLER WEATHER FOR MID TO LATE WEEK.
THIS SOUTHWEST TO NORTHEAST ORIENTED JET INCREASES IN SPEED TO 120 KT BY WEDNESDAY AFTERNOON WITH THE LOW LEVEL FLOW NOW SOUTHERLY AND INCREASING THE MOISTURE FLOW INTO THE REGION.
WILL BE QUICKLY INCREASING BY MID TO LATE MORNING WITH THE APPROACH OF A COLD FRONT FROM THE NORTHWEST WITH SPEEDS INCREASING TO SOUTHWEST TO WEST 10-17 KNOTS WITH HIGHER GUSTS. AS A LARGE- SCALE UPPER TROF REMAINS ANCHORED OVER THE ERN HALF OF THE CONUS. AND AN UPPER RIDGE HOLDS OVER THE WRN CONUS.
THE SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE WEAK COLD FRONT HAVE CLEARED THE FORECAST AREA AND SKIES ARE MOSTLY CLEAR EXCEPT SOME PATCHY FOG. THE AREA IS IN A WEAK PRESSURE PATTERN BEHIND THE FRONT WITH MOSTLY SOUTHWEST TO WEST WINDS UNTIL THE NEXT FRONT PUSHES THROUGH THE AREA WEDNESDAY AS AN UPPER RIDGE BUILDS OVER THE CENTRAL U. THE WINDS WILL BE SOUTHWEST TO WEST AND THEN NORTHWEST AS HIGH PRESSURE BUILDS IN FROM THE WEST THIS AFTERNOON. A REINFORCING COLD FRONT WILL PASS THROUGH WEDNESDAY WITH WINDS VEERING AND STAYING BELOW HEADLINE CRITERIA. HIGH PRESSURE BUILDS IN WITH DRY COOL AND STABLE AIR.
410 AM CST TUE FEB 16 2016 THE COLD FRONT HAS PUSHED THROUGH THE AREA HOWEVER IT BECAME SO MODIFIED THAT TEMPS ACTUALLY WARMED AFTER THE PASSAGE. TEMPS TODAY WILL BE SIMILAR TO SLIGHTLY COOLER THAN YESTERDAY WITH NORTHERLY WINDS AND SOME HIGH CLOUDS EARLY IN THE DAY.
Temperatures were ranging from near freezing in the eastern Ozarks to the upper 40s in the western CWA where the clouds and precipitation are initially coming in. High pressure should push into the area tonight and should see lows dip down to around freezing or slightly below for nighttime lows. Rising heights aloft with the approach of an upper level ridge and low level warm advection will aid in temperatures rising into the 50s and 60s across the area Wednesday.
Northerly winds will be gusty behind a cold front this morning before winds veer to the east and southeast this afternoon. /issued 342 AM CST TUE FEB 16 2016/ An upper level ridge along the west coast will move east toward the forecast area today and Wednesday.
Temperatures will be a little cooler today with highs ranging from the mid 50s around Hays to around 60 at Elkhart. An upper level ridge will move out of the western states over the Plains by Wednesday evening.
620 AM EST TUE FEB 16 2016 A COLD FRONT WILL PUSH THROUGH THE AREA DURING THE MORNING. ALTHOUGH A COLD FRONT WILL BE PUSHING DRIER AIR INTO THE REGION THIS MORNING. MAIN UPPER TROUGH WILL REMAIN RATHER BROAD ACROSS THE EASTERN HALF OF THE COUNTRY THROUGH MID-WEEK.
TEMPERATURES HAVE REMAINED ABOVE FREEZING FOR MUCH OF THE NIGHT OVER SRN MN WHICH HAS MADE IT EVEN MORE DIFFICULT TO GET ACCUMULATION. TEMPERATURES THERE HAVE HOVERED NEAR OR JUST A BIT BELOW FREEZING AND A FEW SLICK SPOTS HAVE BEEN REPORTED. DRIER AIR WILL WORK IN BEHIND A COLD FRONT THIS AFTERNOON. SOME CLEARING IS EXPECTED AND TEMPERATURES WILL GET A BIT CHILLY TONIGHT WITH HIGH PRESSURE BUILDING OVERHEAD.
413 AM CST TUE FEB 16 2016 THE COLD FRONT THAT BROUGHT SEVERAL PERIODS OF MODERATE TO HEAVY RAINFALL YESTERDAY HAS MOVED TO THE EAST AND SOUTH OF THE AREA. THE AXIS OF THE ASSOCIATED UPPER LEVEL TROUGH IS SITUATED JUST OVER THE AREA AND WILL QUICKLY MOVE EAST BY SUNRISE. WITH TEMPERATURES IN THE LOWER 40S. THESE LOW CIGS MAY DROP BELOW 1000 FT AND CAUSE VISIBILITY PROBLEMS IN THE HIGHER TERRAIN. AND APPROACH THE LOWER MS VALLEY BY MID MORNING. AND CAA WILL CONTINUE AS THE HIGH PRESSURE BUILDS IN AT THE SURFACE. WITH LOWS WEDNESDAY NIGHT DROPPING NEAR OR JUST BELOW FREEZING. UPPER LEVEL RIDGING WILL THEN BUILD IN ACROSS THE REGION.
WINDS WERE SOUTHERLY WITH TEMPERATURES RANGING FROM THE LOW 30S TO MID 40S. WEAK WAA OUT AHEAD AN ASSOCIATED SURFACE COLD FRONT WILL KEEP TEMPERATURES ABOVE FREEZING AS LIGHT RAIN BEGINS TO SPREAD OVER THE NORTHERN COUNTIES THIS MORNING. MODEL QPF SHOWS NEAR A QUARTER AN INCH OF RAINFALL IN THE LOWER TENNESSEE RIVER COUNTIES THROUGH MID AFTERNOON.
Wind gusts near 20 knots will develop following a cold frontal passage. A cold front will cross the region from north to south today.
HIGH PRESSURE RIDGE MOVES IN DURING THE AFTERNOON WITH WINDS DECREASING.
AS A LARGE- SCALE UPPER TROF REMAINS ANCHORED OVER THE ERN HALF OF THE CONUS. AND AN UPPER RIDGE HOLDS OVER THE WRN CONUS.
710 AM EST TUE FEB 16 2016 LOW PRESSURE AND A TRAILING COLD FRONT WILL IMPACT THE REGION THIS MORNING. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN FOR THE REMAINDER OF THE WEEK. THE COLD FRONT WILL QUICKLY EXIT OFFSHORE THIS MORNING. MID AND HIGH CLOUDS WILL BE EXITING OFFSHORE AND DOWNSLOPE WILL BEGIN TO EAT AWAY AT THE LINGERING STRATOCUMULUS FIELDS IN THE FRONTAL TROUGH. QUIET WEATHER WITH A FEW HIGH CLOUDS AND LIGHT WINDS AHEAD OF A DRY COLD FRONT. HIGH PRESSURE WILL DOMINATE THE PATTERN WITH DRY CONDITIONS AND MOSTLY SUNNY SKIES OVER THE SOUTHEASTERN UNITED STATES.
559 AM CST TUE FEB 16 2016 A Winter Weather Advisory has been issued for Putnam, Schuyler, Adair, and Macon Counties until noon for freezing rain and sleet. Conditions should improve through the mid-morning as temperatures rise above freezing and remaining precipitation clears out of the area. A shallow warm layer within the expected sub-freezing column will support the development of sleet initially.
WEST WINDS IN THE HIGH COUNTRY HAVE REMAINED STRONG. WARM AIR ADVECTION SETS IN AS A RIDGE OF HIGH PRESSURE SHIFTS EAST OVER THE GREAT BASIN DURING THE DAY. ADVECTION OF WARMER AIR WILL CAUSE TEMPERATURES TO RISE ACROSS MOST OF THE REGION. THE RIDGE TO THE WEST SHIFTS OVER THE FORECAST AREA LATE TONIGHT THEN PUSHES EAST ON WEDNESDAY. SHOWING THE 500 MB RIDGELINE MOVING EAST OF THE AREA. A WEAK TROUGH WILL PRECEDE THE MAIN UPPER TROUGH AND MOVE ACROSS THE AREA THU LATE MORNING AND AFTERNOON. THE MAIN TROUGH IS EXPECTED TO QUICKLY MOVE OVER THE AREA THU AFTERNOON AND EVENING. AFTER MIDNIGHT THU NIGHT RIDGE SHOULD ALREADY BE BUILDING BACK OF THE AREA WITH CONDITIONS DRYING QUICKLY.
THE COLD FRONT WILL DROP ACROSS THE AREA THROUGH THE AFTERNOON HOURS AND WILL EXTEND ACROSS THE HIGHWAY 84 CORRIDOR BY EARLY EVENING. HIGH PRESSURE RIDGING WILL QUICKLY BUILD IN BEHIND THE SYSTEM OVERNIGHT WITH NORTHERLY FLOW AND LOWS FALLING BACK INTO THE 30S FOR MOST OF THE AREA.
1041 AM EST TUE FEB 16 2016 HIGH PRESSURE WILL BUILD INTO THE REGION TODAY BEHIND A COLD FRONT THAT CROSSED THE AREA THIS MORNING. COLD FRONT CROSSED THE FORECAST AREA EARLIER THIS MORNING AND ALL PRECIPITATION HAS SHIFTED OFFSHORE WITH CLEARING SKIES FOR ALL BUT THE NORTHERN MIDLANDS. MAIN UPPER TROUGH WILL REMAIN RATHER BROAD ACROSS THE EASTERN HALF OF THE COUNTRY THROUGH MID-WEEK.
A STRONG RIDGE OF HIGH PRESSURE WILL MOVE EAST OVER NEW MEXICO THROUGH MID WEEK.
647 AM EST TUE FEB 16 2016 PRECIPITATION ASSOCIATED WITH A LOW PRESSURE SYSTEM WILL TAPER OFF THIS MORNING. HIGH PRESSURE WILL BEGIN TO WORK INTO THE REGION ON WEDNESDAY. ALTHOUGH PRECIPITATION WILL GENERALLY BE IN THE FORM OF SNOW SOUNDING PROFILES AND A FEW OF THE OBS INDICATE THAT SOME LIGHT FREEZING RAIN WILL ALSO BE POSSIBLE THIS MORNING WHERE PRECIPITATION IS PRESENT. SNOW HAS BEEN SLOW TO ACCUMULATE IN SOME PLACES DUE TO TEMPERATURES AROUND FREEZING AND SOME RAIN MIXING IN AT TIMES OVERNIGHT.
WEAK HIGH PRES EXPECTED TO BUILD INTO THE GULF OF MEXICO THROUGH TODAY IN THE WAKE OF THE COLD FRONT THAT SWEPT THROUGH THE REGION EARLY THIS MORNING. THIS APPEARS RELATED TO POSITIVE VORT ADVECTION ROTATING AROUND THE BASE OF THE BROAD MID LEVEL TROUGH LOCATED ACROSS THE SERN CONUS.
945 AM EST TUE FEB 16 2016 LOW PRESSURE OVER THE AREA WILL CONTINUE TO LIFT NORTH THROUGH THE MIDDAY HOURS. A WEAK COLD FRONT CROSSES FROM THE WEST TONIGHT.
850mb temperatures are actually forecast to increase slightly today ahead of a secondary cold front that is currently to our north, which should keep highs fairly warm from the mid 60s to around 70 degrees.
VERY STRONG UPPER LEVEL HIGH PRESSURE WILL BRING MUCH ABOVE NORMAL TEMPERATURES TO THE REGION TODAY AND AGAIN ON WEDNESDAY.
HIGH PRESSURE AND ASSOCIATED RIDGE AXIS WILL BE SITUATED ACROSS THE PACIFIC NORTHWEST LEAVING OUR AREA UNDER A NORTHWEST FLOW ALOFT.
NRN COLO AND WRN NEB REPRESENTS A WELL ADVERTISED WARM FRONT ASSOCIATED WITH LOW PRESSURE ACROSS THE NRN HIGH PLAINS.
COULD ALSO SEE SOME SNOW MIXING IN AT THE HIGHER ELEVATIONS. GENERALLY JUST THE HIGHEST RIDGES. /ISSUED 344 AM EST TUE FEB 16 2016/ WE CAN TAKE A BREATHER FOLLOWING THE FREEZING RAIN/THUNDERSTORM COMBO WEDGE EVENT. NOW FINALLY ERODING TO ABOVE FREEZING IN THE NE AND PRECIP PUSHING EAST OF THE CWA WITH THE DEPARTING LOW EARLY THIS MORNING. FOR NOW THE THERMAL COLUMN LOOKS A BIT TOO WARM FOR ANYTHING OTHER THAN RAIN SHOWERS THOUGH A MIX TO SOME LIGHT SNOW AT THE HIGHER ELEVATIONS CANNOT BE RULED OUT BEFORE LATE THIS EVENING /NO IMPACTFUL ACCUMULATIONS EXPECTED IF IT DOES MIX FOR A FEW HOURS/.
HIGH PRESSURE SPREADS INTO THE AREA TONIGHT AND WEDNESDAY.
600 AM CST TUE FEB 16 2016 THE HRRR AND RAP MODELS NOW KEEP MY EXTREME SOUTHWEST COUNTIES SLIGHTLY SUB FREEZING THROUGH MID MORNING AS THE FREEZING RAIN. THE LOW IS FOUND IN TWO CENTERS. OUR CWA HAS BEEN UNDER THE INFLUENCE IN ILLINOIS OF A VERY NARROW RIDGE. AND SEASONAL DAY IN THE LOWER TO MID 30S.
AT THE SURFACE A COLD FRONT WILL SWING THROUGH THE STATE DURING THE MORNING INTO THE EARLY AFTERNOON HOURS. EXPECT THE HIGHEST WINDS/GUSTS ACROSS THE NORTHERN HALF TO TWO THIRDS OF THE STATE. WARMER CONDITIONS SLOWLY BEGIN FROM WEST TO EAST THE NEXT FEW DAYS.
845 AM MST TUE FEB 16 2016 VERY STRONG UPPER LEVEL HIGH PRESSURE WILL BRING MUCH ABOVE NORMAL TEMPERATURES TO THE REGION TODAY AND AGAIN ON WEDNESDAY.
THE LOW IS FOUND IN TWO CENTERS. OUR CWA HAS BEEN UNDER THE INFLUENCE IN ILLINOIS OF A VERY NARROW RIDGE. AND SEASONAL DAY IN THE LOWER TO MID 30S.
1031 AM EST TUE FEB 16 2016 AS LOW PRESSURE MOVES TO THE NORTHEAST. TAX SOME LINGERING SNOW SHOWERS COULD CONTINUE INTO THE EVENING ACROSS THE PA/WV/MD RIDGES. BY WEDNESDAY MORNING A COLD FRONT SHOULD APPROACH THE REGION FROM THE NORTHWEST. HIGH PRESSURE WILL MOVE INTO THE REGION AND BRING A BRIEF BREAK FROM PRECIPITATION.
1020 AM EST TUE FEB 16 2016 LOW PRESSURE AND AN ASSOCIATED COLD FRONT WILL LIFT AWAY FROM THE REGION TODAY. HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN FOR THE REMAINDER OF THE WEEK. QUIET WEATHER WITH A FEW HIGH CLOUDS AND LIGHT WINDS AHEAD OF A DRY COLD FRONT. HIGH PRESSURE WILL DOMINATE THE PATTERN WITH DRY CONDITIONS AND MOSTLY SUNNY SKIES OVER THE SOUTHEASTERN UNITED STATES.
646 AM EST TUE FEB 16 2016 LOW PRESSURE MOVES OUT OF THE AREA THIS MORNING. ANOTHER LOW PRESSURE SYSTEM SKIRTS SOUTHERN PORTIONS OF THE AREA TONIGHT. LOW PRESSURE WILL EXIT THE AREA FIRST THING THIS MORNING. POCKETS OF FREEZING RAIN HAD BECOME MINIMAL IN POCAHONTAS COUNTY AS SUB FREEZING TEMPERATURES WERE ALL BUT ERADICATED THERE. DRIVEN BY A VIGOROUS UPPER LEVEL S/W TROUGH.
A COLD FRONT THAT EXTENDED SOUTH OF A KFSM /FORT SMITH AR/.
845 AM PDT FRI MAR 18 2016 HIGH PRESSURE ALOFT AND WEAK ONSHORE FLOW WILL CONTINUE THROUGH THE WEEKEND WITH HIGH TEMPERATURES NEAR NORMAL NEAR THE COAST TO AROUND 10 DEGREES ABOVE NORMAL FOR INLAND AREAS.
902 AM EDT FRI MAR 18 2016 A WEAK COLD FRONT WILL SINK SOUTH ACROSS THE AREA THIS AFTERNOON FOLLOWED BY HIGH PRESSURE BUILDING IN OVERNIGHT.
431 AM PDT FRI MAR 18 2016 A RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE REGION WHICH WILL RESULT IN CLEAR SKIES AND ABOVE NORMAL TEMPERATURES FOR THE CENTRAL CALIFORNIA INTERIOR. AN AMPLIFIED RIDGE OF HIGH PRESSURE ALONG THE COAST REMAINS IN CONTROL THIS MORNING WITH SATELLITE IMAGERY SHOWING CLEAR SKIES ACROSS THE CENTRAL CALIFORNIA INTERIOR. THE AMPLIFIED RIDGE AXIS WILL SHIFT INLAND OVER THE GREAT BASIN ON SATURDAY WITH LITTLE CHANGE IN CONDITIONS.
DID DECREASE FORECAST SNOWFALL AMOUNTS TODAY COMPARED TO THE PREVIOUS FORECAST GIVEN LOW OBSERVED SNOW RATIOS THIS MORNING AND TEMPERATURES FORECAST TO RISE INTO THE LOWER 30S THIS AFTERNOON.
1043 AM CDT FRI MAR 18 2016 A COLD FRONT CURRENTLY STRETCHES FROM NEAR PADUCAH KENTUCKY TO NEAR MIDLAND TEXAS.