Aikyam-Lab/Synoptic-Bench huggingface dataset:
LOW PRESSURE CENTER IN NORTHWEST GULF CONTINUES TO PRODUCE A MAINLY NORTHERLY FLOW ACROSS THE FORECAST AREA. COULD STILL SEE A FEW OF THESE SHOWERS COULD MAKE IT INTO NORTHERN ZONES/MARINE ZONES THIS EVENING AND OFFSHORE MARINE ZONES TONIGHT AS THE LOW DRIFT SOUTHWARD AND WEAKENS.
OTHERWISE MUCH COOLER AIR WILL CONTINUE TO ADVECT ACROSS THE AREA IN THE WAKE OF THE COLD FRONT THROUGH WEDNESDAY.
TEMPS ACROSS THE REGION WERE MUCH COOLER THAN THEY WERE 24H AGO AS THEY RANGED IN THE M60S ACROSS THE FAR E PLAINS TO L/M70S ACROSS THE I-25 CORRIDOR. TEMPS ALOFT WARM A BIT AND RIDGING INCREASE SLIGHTLY OVER THE REGION. WE WILL LIKELY SEE SCATTERED STORMS ONCE AGAIN OVER THE HIGHER TRRN AND I-25 CORRIDOR BUT COVERAGE WILL LIKELY BE A BIT LESS AND INTENSITY SHOULD NOT BE ALL THAT STRONG.
AN UPPER LEVEL TROUGH DIPS DEEP INTO CENTRAL MEXICO FROM THE MISSISSIPPI RIVER VALLEY. TO ITS EAST AN UPPER LEVEL RIDGE REACHES FROM NEAR THE YUCATAN TO THE NORTHEASTERN SEABOARD. THERE ARE SCATTERED SHOWERS AND THUNDERSTORMS WELL TO THE NORTHWEST OF THE ISLANDS AND ONE SOLO SHOWER WITHIN THE STREAMER IN THE LEE OF THE LOWER KEYS. THE FINAL CHANCES FOR CONVECTIVE INITIATION WILL BE HANDLED BY A CUBAN OUTFLOW BOUNDARY PUSHING THROUGH THE LOWER KEYS RIGHT NOW.
MAIN SURFACE AND MID LEVEL LOW PRESSURE TROUGH AXIS HAS MOVED EAST OF THE COAST LINE SLOWLY MOVING EAST THE NEXT 24-36 HOURS. DEEP SOUTH TEXAS WILL BE IN BETWEEN THE TROUGH OVER THE GULF AND MID LEVEL RIDGE CENTERED ACROSS THE DESERT SOUTHWEST MAINTAINING THE DRY NORTHERLY FLOW.
THE INITIAL UPPER TROUGH AXIS PASSES EAST OF THE STATE DURING THE DAY WEDNESDAY.
1250 PM CDT TUE SEP 29 2015 LOWERED HIGH TEMPERATURES FOR THIS AFTERNOON ACROSS THE WESTERN OK PANHANDLE AND NORTHWEST TX PANHANDLE IN WAKE OF THE COLD FRONT THAT HAS SLIPPED SOUTH OF THESE AREAS. SURFACE COLD FRONT HAS PUSHED THROUGH KDHT AND KGUY. WITH ENHANCED MIXING HELPING TO ERODE THE LOW CLOUDS TOWARD THE END OF THE TAF PERIOD. AFTER A WARMER MIDDLE OF THE WEEK. THE POTENTIAL FOR COOLER AND WETTER WEATHER WILL HINGE LARGELY ON THE INTERACTION OF A COMPLEX PATTERN OF UPPER-LEVEL FEATURES.
307 PM CDT TUE SEP 29 2015 HIGH PRESSURE WILL CONTINUE TO DRIFT EASTWARD TONIGHT. WITH THE REGION BECOMING SITUATED BETWEEN THE HIGH TO THE EAST AND A LOW PRESSURE TROUGH TO THE WEST.
WARM RIDGE PREVAILS WEDNESDAY AND WEDNESDAY NIGHT WITH WARM DAYTIME TEMPS AND MILD NIGHTS CONTINUING. SOME INSTABILITY PERSISTS ON THE BUT ERN UTAH AND THE LOWER/DESERT VALLEYS OF WRN COLORADO ARE EXPECTED TO STAY MOSTLY SUNNY.
409 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH ACROSS THE STATE TONIGHT.
155 PM EDT TUE SEP 29 2015 A COLD FRONT WILL MOVE THROUGH THE REGION TODAY. COOLER AND DRIER AIR WILL WORK INTO THE AREA WEDNESDAY NIGHT. UPPER LEVEL LOW OVER THE GULF STATES TO OPEN UP AND MERGE WITH S/W TROF DIGGING SE FROM SRN CANADA ACRS THE GREAT LAKES. EXPECT PCPN TO BECOME A LTL MORE BROKEN IN COVERAGE THIS AFTN AHEAD OF SFC COLD FRONT WHICH IS EXPECTED TO PUSH SE ACRS ILN/S FA THIS EVENING. DO NOT EXPECT MUCH DIURNAL RISE WITH HIGHS GENERALLY IN THE LOWER AND MIDDLE 70S. A COLD FRONTAL BOUNDARY WILL WORK THROUGH THE FA TODAY. WITH EXTENSIVE CLOUD COVER IN PLACE TODAY AND WITH THE COLD FRONT MOVING THROUGH THE REGION. COOLER AND DRIER AIR WILL WORK INTO THE REGION FOR THE REMAINDER OF THE SHORT TERM.
651 PM EDT TUE SEP 29 2015 A COLD FRONT WILL PUSH EAST ACROSS THE REGION THIS EVENING.
A SURFACE WAVE OF LOW PRESSURE AND COPIOUS ATMOSPHERIC MOISTURE WILL STREAM NE FROM THE GULF COAST INTO OUR REGION TONIGHT. AND STALL NEAR THE COAST THROUGH LATE WEEK WITH LOW PRESSURE AREAS NEAR THE COAST OR JUST OFFSHORE OF THE CAROLINAS AND MID ATLANTIC AFFECTING US THROUGH AT LEAST LATE WEEK. AN UPPER LEVEL TROUGH STRETCHING ACROSS THE MS RIVER VALLEY WILL MOVE EAST INTO THE APPALACHIANS OVERNIGHT. WEAKENING HIGH PRESSURE AT THE SURFACE WILL GIVE WAY TO GENERAL LOW PRESSURE OVER THE SOUTHEAST COASTAL STATES TONIGHT. WITH OVERCAST SKIES LOW TEMPERATURES WILL BE IN THE LOWER 70S. UPPER LEVEL TROF OVER THE TN VALLEY WILL BRING A SERIES OF SHORT WAVES THROUGH THE AREA ALONG WITH A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS.
THE SUBSIDENT UPPER RIDGE IS BULGING BACK OVERHEAD IN THE WAKE OF THE PARENT LOWS LAST TROUGH OVER OUR AREA FROM LITTLE ROCK TO NEAR SHREVEPORT WITH QUICKLY RISING HEIGHTS ALOFT. THIS TROUGH IS AN ELONGATED AREA OF TURNING OR SHIFTING WINDS LIKE A WAVE ON THE WATER MOVING ALONG AN ARC AND THE UPPER LEVEL NW FLOW GIVES GOOD LIFT BELOW. LOOK FOR THE BACKDOOR TO HANG OPEN IN THE WAKE OF THIS UPPER LOW WITH A MOSTLY DRY COLD FRONT LATE IN THE WORK WEEK.
133 PM EDT TUE SEP 29 2015 A COLD FRONT WILL SLOWLY ADVANCE ACROSS THE REGION LATER THIS AFTERNOON AND EVENING. BEHIND THE COLD FRONT. COOLER AIR WILL THEN POUR OVER THE EASTERN GREAT LAKES REGION. WILL HAVE CATEGORICAL POPS ACROSS THE AREA AS A SERIES OF SMALL BUT EFFECTIVE VORTICITY MAXIMA PRECEDE AN APPROACHING COLD FRONT. THE COLD FRONT WILL CROSS THE REGION THIS EVENING WITH THE PRECIPITATION SETTING UP BEHIND THE FRONT TONIGHT. THE SURFACE COLD FRONT WILL HAVE MOVED WELL SOUTHEAST OF THE AREA BY WEDNESDAY MORNING AS HIGH PRESSURE BUILDS INTO THE UPPER GREAT LAKES. THE SURFACE COLD FRONT WILL HAVE MOVED WELL SOUTHEAST OF THE AREA BY WEDNESDAY MORNING AS HIGH PRESSURE BUILDS INTO THE UPPER GREAT LAKES.
332 PM EDT TUE SEP 29 2015 A COLD FRONT WILL SLOWLY ADVANCE ACROSS THE REGION THROUGH THIS EVENING. BEHIND THE COLD FRONT. COOLER AIR WILL THEN POUR OVER THE EASTERN GREAT LAKES REGION. WILL HAVE CATEGORICAL POPS ACROSS THE AREA AS A SERIES OF SMALL BUT EFFECTIVE VORTICITY MAXIMA PRECEDE AN APPROACHING COLD FRONT. THE COLD FRONT WILL CROSS THE REGION THIS EVENING WITH THE PRECIPITATION SETTING UP BEHIND THE FRONT TONIGHT. THE SURFACE COLD FRONT WILL HAVE MOVED WELL SOUTHEAST OF THE AREA BY WEDNESDAY MORNING AS HIGH PRESSURE BUILDS INTO THE UPPER GREAT LAKES.
TEMPERATURES WILL REMAIN SLIGHTLY ABOVE NORMAL THROUGH MID-WEEK WITH A TROUGH TO THE WEST AND A RIDGE TO THE EAST.
HIGH HIGH PRESSURE WILL BUILD IN FROM THE NORTH TONIGHT INTO WEDNESDAY. TO THE LOW 50S SOUTHEAST WHERE ONSHORE WINDS OFF THE WARMER LAKE WILL KEEP THINGS MILDER.
UPPER LEVEL LOW TO OUR WEST. BUT GIVEN THE HIGHER DBZS AND ISOLATED GROUND STROKES NOW NEAR MARION AND LAMAR COUNTIES. THE LIFTING UPPER LOW/TROUGH AXIS WILL FINALLY START TO APPROACH THE AREA BY LATE WEDNESDAY AFTERNOON. /61/ THE COLD FRONT WILL EXIT THE AREA WEDNESDAY AFTERNOON.
110 PM EDT TUE SEP 29 2015 A COLD FRONT WILL BE PASSING THROUGH TODAY WHICH WILL BE ENDING THE RAIN FROM THE NORTHWEST TO SOUTHEAST AS IT MOVES THROUGH. SKIES WILL BEGIN TO CLEAR UP TONIGHT AS THE FRONT MOVES ON AND HIGH PRESSURE BEGINS TO BUILD IN. WILL STILL SEE TEMPS ABOVE NORMAL TODAY DUE TO VERY WARM START AND FRONTAL TIMING BUT COOLER AIR ARRIVES BY TONIGHT. NEGATIVE HEIGHT ANOMALY MOVING THROUGH CENTRAL CANADA TODAY WITH SHORT WAVE TROUGH INTO THE GREAT LAKES. THIS WILL DRIVE A WEAKENING COLD FRONT THROUGH THE FORECAST AREA TODAY AND MUCH COOLER AND DRIER AIR WILL FOLLOW TONIGHT.
303 PM CDT TUE SEP 29 2015 CLEARING BEHIND A COLD FRONT WAS SLOWLY MAKING ITS WAY INTO THE AREA TODAY. THE RAIN OF EARLIER HAD ALL BUT CEASED THIS AFTERNOON AS DRIER COOLER AIR RUSHED INTO THE AREA AS HIGH PRESSURE BUILT IN FROM THE NORTH.
WITH OTHER AREAS GENERALLY IN THE LOW/MID 40S FOR THE MOST PART. TEMPS SHOULD BE IN THE LOW/MID 60S AND COULD BE COOLER IN THE NORTH IF CLOUDS ARE A BIT THICKER THAN EXPECTED.
341 PM CDT TUE SEP 29 2015 HIGH PRESSURE CENTERED NEAR DULUTH MINNESOTA THIS AFTERNOON WILL EXPAND AND STRENGTHEN OVER THE NEXT SEVERAL DAYS. THE SOUTHERN EDGE OF THE AIRMASS IS MARKED BY A COLD FRONT THAT EXTENDS FROM THE CENTRAL OKLAHOMA PANHANDLE ACROSS SOUTHERN KANSAS. THE CURRENT CONFIGURATION OF THE HIGH PRESSURE AREA. AS THE COOLER AIR GRADUALLY DEEPENS ACROSS THE AREA. AND A SECONDARY FRONT BRINGS IN STILL COOLER AND DRIER AIR.
A secondary region of rain chances will sneak in from the north later this afternoon as a cold front approaches. Main upper level trough will shift east across Canada today and will aid in dropping a cold front through our forecast area. Cooler and drier air will move in behind the front beginning tonight. A few showers will remain possible over the eastern Ozarks today as a closed upper low along the Gulf coast opens up and shears out to the east. Northwest flow aloft and northeast flow in the lower levels of the atmosphere south of the cooler and drier air mass will be over the forecast area Wednesday into the end of the week.
320 PM CDT TUE SEP 29 2015 HIGH PRESSURE BUILDING INTO THE CWA TONIGHT BEHIND THE EXITING STORM SYSTEM. DEWPOINTS HAVE DROPPED SIGNIFICANTLY IN THE LAST FEW HOURS WHERE CLOUDS HAVE CLEARED FROM THE LOW 50S INTO THE UPPER 30S. ALSO WITH THE HIGH MOISTURE AMOUNTS IN THE GROUND. EASTERLY FLOW OFF HIGH PRESSURE IN SOUTHEAST CANADA WILL PUMP A PERSISTENT SUPPLY OF COOL AND DRY AIR INTO THE STATE. BUT THE GENERAL DRY PATTERN LOOKS TO CHANGE LITTLE WITH A SLIGHT WARMING TREND EARLY IN THE WEEK AS THE RIDGE TRIES TO SLIDE EAST. WITH HIGH PRESSURE SETTLING INTO THE CWA.
410 PM CDT TUE SEP 29 2015 THE LARGE UPPER LVL TROF HAS BEEN SLOWLY BEGINNING TO LIFT NE OVER THE NW GULF COAST BASED ON LATEST UA ANALYSIS AND WV IMAGERY. THE UPR TROF IS EXPECTED TO CONTINUE MOVING EAST OVERNIGHT INTO WED. FLOW ALOFT WILL BECOME MORE NLY WITH SLIGHTLY DRIER AIR BEGINNING TO FILTER IN BEHIND THE TROF ALTHOUGH ENOUGH LOW LVL MOISTURE WILL EXISTS FOR A FEW ISLTD SHOWERS WED AFTN. DEEPENING IT EAST OF THE LOWER MS.
UPPER TROUGH APPROACHES FROM THE WEST. WEAK LOW PRESSURE STALLED OVER SE GA WILL BE SUPPORTIVE OF A FEW EVENING SHOWERS AND ISOLATED THUNDERSTORMS MAINLY ALONG AND NORTH OF THE I-10 CORRIDOR WEDNESDAY EVENING.
MORE MOISTURE WILL ARRIVE ON WEDNESDAY AS THE LOW MOVES ONSHORE. THE MODELS SHOW THE LOW MOVING THROUGH UTAH WHICH MAY INDICATE MORE DRIER AREAS THAN YESTERDAYS RUN WHICH BROUGHT THE LOW THROUGH EAST IDAHO.
201 PM MDT TUE SEP 29 2015 INCREASED MOISTURE BEHIND A COLD FRONT HAS BROUGHT SCATTERED THUNDERSTORMS TO THE FOOTHILLS AND AREAS MAINLY SOUTH OF I-70. MODERATE SHEAR AND A UNIDIRECTIONAL HODOGRAPH COUPLED WITH THE MOISTURE LEVELS WILL HELP TO BRING STRONG STORMS TO THE LOWER FOOTHILLS AND SOUTH OF DENVER. FURTHER TO THE NORTH AND EAST A LOWER CLOUD DECK AND TEMPERATURES WILL HELP TO KEEP AWAY ANY INSTABILITY IN THE LOWER LEVELS. OTHERWISE MOSTLY TO PARTLY CLOUDY SKIES WITH BRING LOW TEMPERATURES IN THE LOWER TO MID 50S FOR THE PLAINS AND 30S FOR THE MOUNTAINS. INCREASING MOISTURE AND UPPER LEVEL FORCING WILL COMBINE WITH UPSLOPE FLOW TO HELP WITH DEVELOPMENT ALONG THE HIGHER TERRAIN.
HIGH PRESSURE WILL LEAD TO ANOTHER ROUND OF DRY WEATHER AND ABOVE NORMAL TEMPERATURES ON WEDNESDAY.
THE UPPER LEVEL RIDGE CENTERED OVER THE SOUTHWEST PART OF THE COUNTRY WILL SLOWLY BUILD NORTH INTO THE MIDWEST. THE UPPER LEVEL FLOW WILL BECOME VERY AMPLIFIED WITH A STRONG TROUGH FORMING OVER THE EASTERN PART OF THE COUNTRY. THE RIDGING OVER THE CENTRAL SECTIONS AND THEN PACIFIC ENERGY FORMING ANOTHER TROUGH OVER THE NORTHERN ROCKIES INTO THE SOUTHWEST. IN THE LOW LEVELS. THE CENTER OF THE AREA OF HIGH PRESSURE WILL MOVE NORTHEAST TOWARD HUDSON BAY BUT MAINTAIN A STRONG RIDGE AXIS BACK OVER THE UPPER MIDWEST.
A SURFACE WAVE OF LOW PRESSURE AND COPIOUS ATMOSPHERIC MOISTURE WILL STREAM NE FROM THE GULF COAST INTO OUR REGION TODAY AND TONIGHT. AND STALL NEAR THE COAST THROUGH LATE WEEK WITH LOW PRESSURE AREAS NEAR THE COAST OR JUST OFFSHORE OF THE CAROLINAS AND MID ATLANTIC AFFECTING US THROUGH AT LEAST LATE WEEK. WITH OVERCAST SKIES LOWS WILL RANGE FROM AROUND 70 IN TO THE LOWER 70S. UPPER LEVEL TROF OVER THE TN/MS VALLEY WILL BRING A SERIES OF SHORT WAVES THROUGH THE AREA ALONG WITH A CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS.
Once the skies clear out, the temps should radiate out quite well, with the northeast dropping into the 40s, and the southeast keeping the cloud cover and staying warmer. A large high pressure system will build into Canada north of the Great Lakes for midweek into the weekend bringing persistent cool temperatures and north to northeasterly breezes.
308 PM CDT TUE SEP 29 2015 STRONG HUDSON BAY LOW CONTINUES TO DEVELOP SHOWERS AND THUNDERSTORMS ALONG A COLD FRONT FROM THE NORTHEAST CONUS INTO THE CENTRAL PLAINS. TROUGH FROM THE HUDSON BAY LOW INTO THE SOUTHEAST CONUS WITH UNSETTLED WEATHER FROM MISSISSIPI INTO NORTHERN NEW YORK. WEAK RIDGING OVER THE WESTERN CONUS WITH CLOSED LOW OFF THE CALIFORNIA COAST. MOISTURE ADVECTION THROUGH THE SOUTHERN PLAINS AND UPPER CLOSED LOW APPROACHING FROM THE WEST.
We will once again see another chilly Wednesday morning, where temperatures will drop to around freezing. The cooler valley locations will again be across northwestern Montana.
140 PM CDT TUE SEP 29 2015 Upper ridge centered over Baja will continue to extend across the area most of the week.
I DON'T THINK THE COVERAGE WILL BE AS HIGH AS WE HAVE SEEN TODAY AND THE FOCUS FOR THE HIGHEST CHANCES OF RAIN SHOULD REMAIN EAST OF I-65.
106 PM EDT TUE SEP 29 2015 AVIATION SECTION HAS BEEN UPDATED BELOW A COLD FRONT MOVING IN FROM THE NORTHWEST WILL SLOWLY CROSS INDIANA FROM TODAY INTO TONIGHT. THE HOOSIER STATE IS FORECAST TO REMAIN ON THE EAST SIDE OF A VERY LARGE HIGH PRESSURE SYSTEM FROM THE CENTRAL UNITED STATES DEEP INTO CANADA.
COLD FRONT HAS PUSHED SOUTH OF CWA. BEHIND BOUNDARY TEMPERATURES WILL BE MUCH COOLER TODAY AS HIGH PRESSURE PUSHES IN. HAVE KEPT TEMPERATURES NEAR GOING WITH WARMER TEMPERATURES IN THE SOUTH. UPPER FLOW FOR MUCH OF THE WORK WEEK WILL SEE TROUGHINESS IN THE EAST WITH RIDGING ACROSS THE INTER-MOUNTAIN WEST.
1230 PM CDT TUE SEP 29 2015 The cold front is beginning to move into northern Missouri early this morning. So have the highest PoPs across northern Missouri for this morning and then taper them further south later in the day. The other story with this front will be the much cooler air settling southward. And in our south, where there should still be some good heating, highs look to climb into the lower 80s. The cooler weather looks to stay with us through the rest of the forecast, being reinforced by high pressure in the Great Lakes and east northeasterly surface flow.
350 PM CDT TUE SEP 29 2015 Upper ridge building northeast into the Southern Rockies leading to modest northwest flow with a weak wave rounding the ridge spreading light precipitation into western portions of Kansas. Cold air advection and lower cloud behind the cold front keeping some temps in the 60s. Surface ridging will continue to build into the area tonight into Wednesday with northeast winds keeping at least modest cold air advection going, so despite more sunshine, expect highs to be near to slightly below today's values. By Wednesday night, a mid-level ridge will be centered across the southwestern U. At the surface, high pressure will stretch from the Central Plains toward the Great Lakes region.
HIGH PRESSURE ALOFT WILL PREVAIL OVER THE REGION TONIGHT.
324 PM CDT TUE SEP 29 2015 VISIBLE SATELLITE IMAGERY THIS AFTERNOON SHOWS CIRCULATION OF WEAK LOW PRESSURE ABOUT 100 MILES SSE OF GALVESTON. WATER VAPOR IMAGERY SHOWS UPPER LOW MAKING PROGRESS EASTWARDS ACROSS LOUISIANA AND IT BEGINNING TO SHEAR OUT AS EXPECTED. WINDS AROUND THE LOW PRESSURE SHOULD DECREASE ENOUGH TOMORROW ALONG WITH BECOMING MORE OFFSHORE TO DECREASE THE THREAT OF RIP CURRENTS. THIS HELPS ADVECT A DRIER/COOLER AIRMASS INTO THE REGION FOR THE END OF THE WEEK. MIN TEMPS COULD BE DROPPING INTO THE LOW 60S PERHAPS UPPER 50S IN A FEW AREAS FOR THE WEEKEND. MAX TEMPS WILL LIKELY REACH THE LOW 80S AFTER THE COOL START.
255 PM CDT TUE SEP 29 2015 DRY AND MILD CONDITIONS EXPECTED THROUGH THE PERIOD AS HIGH PRESSURE RIDGE REMAINS ANCHORED FROM THE GREAT LAKES INTO THE LOWER MISSOURI VALLEY.
CONVECTION HAS BEEN VERY LIMITED SO FAR THIS AFTERNOON AS FORCING WITH UPPER LEVEL TROUGH MOVES AWAY FROM EASTERN AREAS OF THE CWA. UPPER LEVEL RIDGING WILL BUILD INTO THE AREA FROM THE WEST ON WEDNESDAY WITH DRY CONDITIONS.
WATER VAPOR IMAGERY SHOWS UPPER LEVEL LOW THAT HAD BEEN OVER SE TEXAS HAS MOVED EAST A BIT OVER LOUISIANA THIS MORNING.
SHOWERS AND ISOLATED THUNDERSTORMS CONTINUE ACROSS THE MID STATE AS THE UPPER TROUGH SLIDES EASTWARD.
421 PM CDT TUE SEP 29 2015 THE LOW OVER THE GULF IS TRANSITIONING TO AN OPEN TROUGH AS A COLD FRONT STARTS TO MOVE DOWN FROM THE MIDWEST TOMORROW INTO TOMORROW NIGHT.
Short-term continues to look quite wet with broad and deep trofiness over the eastern CONUS and a respectable mid-level upper low showing up near the Missouri bootheel. Cold front is draped from NE Indiana back into central Illinois. Cold front will slowly push into the Ohio Valley tonight, but the precip will exit to the south and east even more slowly. Will follow the warmer end of guidance, more confidently so at night with plenty of clouds to limit diurnal ranges.
A COLD FRONT OVER THE OHIO VALLEY WILL MOVE INTO THE TN VALLEY TONIGHT AND SHIFT EAST INTO THE CAROLINAS WEDNESDAY. WILL BEGIN THE PERIOD UNDER THE INFLUENCE OF A BROADER UPPER LEVEL TROUGH.
LATE MORNING AIR TEMPS ARE NOW CLIMBING INTO AND THROUGH THE LOWER 80S WITH DEEPENING NORTHERLY FLOW ALOFT. WE STILL HAVE ABUNDANT MOISTURE IN THE LOW LEVELS WITH MID TO UPPER 60S TDS.
718 PM EDT TUE MAR 29 2016 HIGH PRESSURE WILL BRING CLEAR COLD WEATHER TO THE AREA TONIGHT INTO WEDNESDAY.
737 PM EDT TUE MAR 29 2016 UPPER RIDGE BEGINS TO FLATTEN OUT TONIGHT AS LEAD VORT CENTER EJECTS OUT OF LONGWAVE TROUGH OVER THE ROCKIES. SOUTH OF THE BRIDGE.
OTHERWISE FORECAST IS ON TRACK WITH LOWS EXPECTED GENERALLY IN THE LOWER TO MID 60S.
656 PM CDT TUE MAR 29 2016 FOR 00Z TAFS /ISSUED 214 PM CDT TUE MAR 29 2016/ A PLEASANT MILD AND DRY AFTERNOON WAS IN PROGRESS WITH GREAT LAKES HIGH PRESSURE OWING TO DRY N-NELY SFC FLOW. THIS RIDGE SHIFTS EAST TONIGHT INTO EARLY WEDNESDAY ALLOWING WINDS TO TURN RAPIDLY TO THE S-SE ON WEDNESDAY.
800 PM EDT TUE MAR 29 2016 A LARGE AREA OF HIGH PRESSURE CENTERED OVER MICHIGAN WILL TRACK EAST TONIGHT ALLOWING A LOW PRESSURE SYSTEM TO APPROACH FROM THE WEST.
613 PM CDT TUE MAR 29 2016 AN UPPER LOW OVER THE GREAT BASIN IS PROGGED TO SHEAR NORTHEASTWARD AS IT MOVES ACROSS THE CENTRAL PLAINS WEDNESDAY INTO WEDNESDAY NIGHT. COOLER AND DRIER AIR WILL MOVE IN WEDNESDAY NIGHT AS A COLD FRONT PRESSES ACROSS THE REGION.
709 PM EDT TUE MAR 29 2016 HIGH PRESSURE WILL MOVE OVERHEAD TONIGHT.
WARM FRONTAL BOUNDARY LIKE FEATURE EXTENDING FROM SOUTHEAST LOUISIANA COAST THROUGH LOWER SOUTHWEST LOUISIANA INTO SOUTHEAST TEXAS WILL SLOWLY MOVE FURTHER INLAND TONIGHT. /ISSUED 345 PM CDT TUE MAR 29 2016/ SFC ANALYSIS SHOWS A WARM FRONT BEGINNING TO WORK ITS WAY NWD ACROSS THE FORECAST AREA. WHILE WEAK RIDGING IS NOTED OVER THE CNTL CONUS. STILL EXPECT A FEW SHOWERS AND POSSIBLY A STORM OR TWO TO DEVELOP THROUGH THE AFTERNOON AS WE GO THROUGH MAX HEATING ALONG WITH OUR WEAK WARM FRONT. AS WE MOVE INTO TONIGHT EXPECT MOST CONVECTION TO BEGIN DEVELOPING TO OUR WEST AS A DIVERGENT FLOW ALOFT SETS UP AHEAD OF APPROACHING UPPER LOW.
/issued 351 PM CDT TUE MAR 29 2016/ (Tonight and Wednesday) An upper trough will track east from the Rockies and into the Plains on Wednesday. Temperatures will be warm again tonight, with lows only in the low to mid 60s. Storm chances do not end until well after midnight when cold front brings in drier air.
750 PM MST TUE MAR 29 2016 A SLOW MOVING LOW PRESSURE SYSTEM WILL KEEP MUCH COOLER TEMPERATURES LOCKED INTO THE REGION WITH HIGHS IN THE UPPER 60S TO LOW 70S ACROSS THE LOWER DESERTS WEDNESDAY.
1204 AM EDT WED MAR 30 2016 A LARGE AREA OF HIGH PRESSURE CENTERED OVER MICHIGAN WILL TRACK EAST TONIGHT ALLOWING A LOW PRESSURE SYSTEM TO APPROACH FROM THE WEST.
THE WINTER WEATHER ADVISORY FOR FOR THE LOWER SNAKE RIVER PLAIN AND EASTERN MAGIC VALLEY WAS EXTENDED TO 11 PM THIS EVENING. THIS HAS ALLOWED FOR A MORE WIDESPREAD AREA OF RAIN AND SNOW ACROSS THE LOWER END OF THE SNAKE PLAIN. OTHER AREAS HAVE GONE TO A MIX OR ALL RAIN AS WARM AIR WRAPS AROUND THE LOW. AS THE LOW BEGINS TO SHIFT SOUTH AND EAST TONIGHT AND WEDNESDAY. HIGHS WILL PUSH BACK INTO THE LOW 50S FOR SOME VALLEY LOCATIONS. INFLUENCE OF UPPER LOW OVER THE WEST WILL WANE AS IT FILLS AND MOVES TO THE EAST.
1222 AM EDT WED MAR 30 2016 HIGH PRESSURE WILL CROSS THE REGION WEDNESDAY.
640 PM CDT TUE MAR 29 2016 High pressure over the eastern United States kept southeast winds over central IL today. Main moisture and cloud advection late tonight, with the low clouds reaching into the area late.
937 PM CDT TUE MAR 29 2016 WARM FRONT CURRENTLY LIFTING NORTH ACROSS PORTIONS OF EAST TEXAS AND NORTH LOUISIANA THIS EVENING.
WINDS SHOULD CALM BTWN 30/03Z THRU 30/15Z BEFORE PICKING UP OUT OF THE SOUTHWEST AFT 30/15Z DUE TO AN APPROACHING COLD FRONT. SOME SEMBLANCE OF A PSEUDO DRYLINE OR PACIFIC COLD FRONT WILL MOVE EWD ACROSS THE FCST AREA. A COLD FRONT WILL BEGIN TO MOVE INTO THE FAR NWRN ZONES VERY LATE IN THE DAY AND THEN ACROSS THE MAJORITY OF THE TX AND OK PNHDLS WED EVENING.
PRECIPITATION BANDS CIRCULATING AROUND THE UPPER LOW WILL DISSIPATE AND WINDS WILL DIMINISH. AFTER MIDNIGHT ANY ADDITIONAL ACCUMULATION IN THE HIGHER TERRAIN WILL BE MINIMAL.
MAINLY BETWEEN ABOUT AMERICAN SHOAL AND THE SEVEN MILE BRIDGE. ENJOY THE LOWER HUMIDITIES RIGHT NOW. A HIGH PRESSURE SYSTEM OVER THE EASTERN UNITED STATES WILL EXPAND AND INTENSIFY OVERNIGHT AND WEDNESDAY.
COOLER TEMPS AND CLEARING SKIES THROUGH THE NIGHT. SCATTERED CONVECTIVE SHOWERS AND WIDESPREAD RAIN SHIELD CONTINUED TO TREK EASTWARD FROM SOUTH OF GNV TO PALATKA ON THE NORTHERLY PERIPHERY OF AN UPPER LEVEL LOW. AS THE UPPER LEVEL LOW TRACKS ACROSS CENTRAL FL THROUGH 06Z. WITH UPPER LEVEL CLOUD THINNING BY SUNRISE ON THE BACK SIDE OF THE LOW. IN THE LOWER LEVELS ONSHORE EAST FLOW WILL CONTINUE THROUGH THE NIGHT WHICH WILL PREVENT SIGNIFICANT FOG FORMATION.
743 PM EDT TUE MAR 29 2016 HIGH PRESSURE OVER THE AREA WILL MOVE OFFSHORE WEDNESDAY.
THE COLD FRONT WILL CONTINUE MOVING THROUGH THE AREA TONIGHT. UPPER TROUGH HANGS BACK OVER THE CENTRAL INTERMOUNTAIN REGION ON LEAVING OUR CWA UNDER A SOMEWHAT MOIST NORTHERLY FLOW ALOFT.
/ISSUED 408 PM CDT TUE MAR 29 2016/ A large low pressure system was currently located over Nevada and Utah this afternoon.
1018 PM EDT TUE MAR 29 2016 HIGH PRESSURE OVER THE AREA WILL MOVE OFFSHORE WEDNESDAY.
THE COLD UPPER LEVEL LOW PRESSURE SYSTEM ALONG THE UTAH AND NEVADA BORDER WILL DRIFT SLOWLY SOUTHEAST THROUGH EARLY WEDNESDAY. THIS LOW PRESSURE WILL WEAKEN ON WEDNESDAY. AND WILL BE REPLACED BY HIGH PRESSURE ALOFT FOR THE UPCOMING WEEKEND. AN UPPER LOW REMAINS CENTERED OVER FAR WEST-CENTRAL UTAH THIS EVENING. THE FAR NORTHERN PORTION OF THE FORECAST AREA WHERE MOISTURE IS WRAPPING AROUND THE LOW. A VORT LOBE EJECTING ACROSS COLORADO THIS EVENING IS EXPECTED TO DEVELOP INTO A SECOND CLOSED LOW. ADDITIONAL ISOLATED TO SCATTERED SHOWERS WILL DEVELOP TOMORROW ESPECIALLY OVER THE HIGHER TERRAIN.
1148 PM EDT TUE MAR 29 2016 HIGH PRESSURE WILL MOVE OVERHEAD TONIGHT.
939 PM EDT TUE MAR 29 2016 HIGH PRESSURE BUILDS ACROSS THE REGION THROUGH WEDNESDAY.
BEFORE HIGH PRESSURE BRINGS A STRONG WARMING AND DRYING TREND HEADING INTO THE WEEKEND.
WEDNESDAY IS STILL EXPECTED TO BE WARMER WITH ONLY ISOLATED/SCATTERED SHOWERS.
A QUICK UPDATE THIS EVENING TO EXTEND THE WINTER WEATHER ADVISORY FOR FOR THE LOWER SNAKE RIVER PLAIN AND EASTERN MAGIC VALLEY TO 11 PM THIS EVENING. THIS HAS ALLOWED FOR A MORE WIDESPREAD AREA OF RAIN AND SNOW ACROSS THE LOWER END OF THE SNAKE PLAIN. OTHER AREAS HAVE GONE TO A MIX OR ALL RAIN AS WARM AIR WRAPS AROUND THE LOW. AS THE LOW BEGINS TO SHIFT SOUTH AND EAST TONIGHT AND WEDNESDAY. HIGHS WILL PUSH BACK INTO THE LOW 50S FOR SOME VALLEY LOCATIONS. INFLUENCE OF UPPER LOW OVER THE WEST WILL WANE AS IT FILLS AND MOVES TO THE EAST.
Warmer low temperatures can be expected tonight, especially over central MO due to increasing cloudiness, increasing south-southwesterly low level winds and possibly also increasing southeasterly surface winds as a strong south-southwesterly low level jet translates into northwest MO by 12Z Wednesday, surface dew points slowly rising, and low-mid level warm air advection with rising 850 mb temperatures. Trended slightly cooler further E where less clouds will be seen.