Aikyam-Lab/Synoptic-Bench huggingface dataset:
COLD FRONT WILL MOVE THROUGH THE AREA THURSDAY MORNING WITH WINDS SWITCHING AROUND TO THE NORTH. AS OF WRITING A COLD FRONT WAS RACING SOUTH ACROSS THE SOUTH PLAINS AND EXTENDS EASTWARD ALONG THE TX/OK BORDER. ALSO INCREASED TIMING OF FROPA BY A FEW HOURS WITH A PREFRONTAL TROUGH PUSHING THOUGH THE CWA SHORTLY AFTER SUNRISE AND THE MAIN FRONT ARRIVING MID MORNING AND PUSHING OFFSHORE BY MIDDAY. A COLD FRONT IS FORECAST TO PUSH SOUTH ACROSS ALL MARINE AREAS THURSDAY WITH STRONG NORTHERLY FLOW AND HAZARDOUS SEAS OCCURRING IN ITS WAKE.
As the low moves off to the northeast, it will drag a cold front through central Kentucky this morning. Showers will spread across the forecast area after 12Z with a few thunderstorms continuing to be possible ahead of the cold front. Much cooler temperatures are expected tonight with lows in the lower to mid 30s. For tomorrow an upper level trough will be in place across the eastern CONUS.
420 AM EDT THU MAR 26 2015 WARM CONDITIONS EXPECTED TODAY AHEAD OF A COLD FRONT WHICH IS EXPECTED TO SLOWLY SHIFT SOUTH THROUGH OUR REGION LATE TONIGHT AND EARLY FRIDAY.
STRONG UPPER LEVEL RIDGE EXISTS ALONG THE WEST COAST BUT IT IS DIRTY. WITH AN ABUNDANCE OF PACIFIC MOISTURE SPILLING OVER THE RIDGE IN THE NW FLOW OVER OUR REGION. IE NEAR AND EAST OF SFC TROF. OTHERWISE WE WILL SEE DRYING FROM WEST TO EAST LATE TONIGHT INTO FRIDAY AS THE RIDGE CONTINUES TO PUSH EAST INTO THE NORTHERN ROCKIES. TEMPS WILL RISE INTO THE LOWER TO MID 60S TODAY IN WEST AND CENTRAL PARTS. AND INTO THE LOWER 70S FRIDAY.
UPPER LEVEL RIDGE BUILDING EAST INTO THE ROCKIES TONIGHT WILL NUDGE THE SFC BOUNDARY EASTWARD BRINGING WAA FARTHER EAST INTO CENTRAL NORTH DAKOTA TONIGHT.
ALOFT THIS MORNING A BROAD AND AMPLIFIED LONGWAVE TROUGH OF LOW PRESSURE EXTENDED FROM THE WESTERN GREAT LAKES SOUTHWEST ACROSS THE SOUTHERN PLAINS AND INTO MEXICO. ASSOCIATED WITH THIS UPPER TROUGH. A NORTHEAST EXTENSION OF THE COLD FRONT. THE UPPER TROUGH OF LOW PRESSURE WILL CONTINUE TO MOVE EAST SENDING THE SURFACE SYSTEM ACROSS THE FOUR STATE REGION BY LATE TODAY AND APPROACHING THE EASTERN SEABOARD AFTER 1 AM AND 7 AM FRIDAY MORNING.
AN ARCTIC COLD FRONT WAS WELL TO OUR NORTH. EXTENDING FROM LOW PRESSURE OVER SE QUEBEC W ACROSS LAKE SUPERIOR AND ALONG THE MN/ONTARIO BORDER. THE LOCAL AREA WAS IN AN AREA OF WEAK RIDGING THAT REACHED EAST FROM THE CENTER OF HIGH PRESSURE OVER SW NEB ACROSS IA INTO NORTHERN IL. DRIER AIR AND COLD AIR ADVECTION IN THE CYCLONIC NW FLOW ALOFT WAS ERODING THE LOW CLOUDS OVER THE LOCAL AREA. WHICH MAY BRIEFLY BE IMPACTED BY THE EDGE OF THE LOW CLOUD DECK CURRENTLY OVER WI. CANADIAN HIGH PRESSURE BEGINS TO NOSE SOUTH INTO THE NORTHERN PLAINS AND UPPER MS VALLEY. THE POSITION OF THE RIDGE CENTER TO THE WEST SHOULD PROVIDE ENOUGH MIXING ON LIGHT NORTH WINDS TO HOLD MINS CLOSE TO A GUIDANCE BLEND FROM THE UPPER TEENS NORTH TO MID 20S SOUTH.
CONDITIONS WILL BE DETERIORATING LATER THIS MORNING AS A COLD FRONT DROPS SOUTH INTO THE REGION BRINGING A BROKEN LINE OF SHWRS AND EMBEDDED TSTMS WITH IT THROUGH MID TO LATE MORNING.
635 AM EDT THU MAR 26 2015 LOW PRESSURE WILL MOVE NORTHEAST OUT OF THE OHIO RIVER VALLEY TODAY AND MOVE ACROSS SOUTHERN NEW ENGLAND THIS EVENING.
A SURFACE COLD FRONT WILL BE WELL SOUTH OF THE AREA WITH NORTHERLY WINDS FELT ACROSS WESTERN KANSAS AS HIGH PRESSURE BUILDS INTO THE AREA. WINDS SHIFT TO MORE OF A WESTERLY DIRECTION TOMORROW AS THE RIDGE AXIS MOVES THROUGH THE CWA. HIGHS TOMORROW ARE ANTICIPATED TO REACH INTO THE LOWER 60S WITH THE EXCEPTION OF CENTRAL KANSAS WHERE HIGHS AROUND 60 DEGREES LOOKS MORE LIKELY. ALTHOUGH THE LOWER LEVELS WILL REMAIN FAIRLY DRY, A JET CORE ASSOCIATED WITH THE H5 VORT MAX MAY BE STRONG ENOUGH TO SUPPORT THE CHANCE FOR A FEW SPRINKLES OR POSSIBLY EVEN A FEW ISOLATED HIGH BASED SHOWERS ACROSS CENTRAL KANSAS.
AS THE RIDGE MOVES/BUILDS IN THE ISENTROPIC UPGLIDE INCREASES ENOUGH TO PRODUCE SOME CONSIDERABLE MID AND HIGH CLOUDS ACROSS THE AREA TONIGHT AND THURSDAY WITH THE ATMOSPHERE MOISTENING ENOUGH OVER THE NRN MOUNTAINS TO POSSIBLY PRODUCE SOME VERY LIGHT SNOW OF FLURRIES AT TIMES TONIGHT AND THURSDAY. ROUGHLY 10 DEGREES WARMER ON THURSDAY ACROSS MUCH OF THE AREA AND DRY.
A RATHER RAPIDLY STEEPENING UPPER LEVEL TROF WILL CONTINUE TO DEEPEN TODAY AS IT HEADS E-SE THROUGH THE LOWER MS VALLEY REGION TOWARDS OUR CWA TODAY AND TONIGHT. BEHIND THIS STEEP TROF, MUCH COOLER AND DRIER AIR WILL MOVE INTO THE AREA FOR THE END OF THE WEEK AND UPCOMING WEEKEND AS WILL BE DISCUSSED IN THE SHORT TERM PERIOD. BACK TO TODAY, CONDITIONS WILL STILL BE UNSEASONABLY WARM AND HUMID WITH HIGHS RANGING FROM THE MID TO UPPER 70S OVER MOST AREAS, TO THE LOWER TO MIDDLE 80S ACROSS THE SE FL BIG BEND WHICH MAY NOT SEE ANY SHOWERS OR STORMS UNTIL VERY LATE THIS AFTERNOON OR EVENING.
ALTHOUGH THE LOWER LEVELS WILL REMAIN FAIRLY DRY, A JET CORE ASSOCIATED WITH THE H5 VORT MAX MAY BE STRONG ENOUGH TO SUPPORT THE CHANCE FOR A FEW SPRINKLES OR POSSIBLY EVEN A FEW ISOLATED HIGH BASED SHOWERS ACROSS CENTRAL KANSAS.
323 AM EDT THU MAR 26 2015 THE CONTINENTAL VIEW IS SHOWING A COMPLEX PATTERN WITH A LARGE UPPER LOW SPINNING OVER SOUTHEAST CANADA. A VIGOROUS SHORT WAVE TROUGH MOVING ACROSS THE SOUTHERN CENTRAL PLAINS. WITH A MID LEVEL RIDGE SLIDING SLOWLY ACROSS THE SOUTHEASTERN GULF OF MEXICO. THE SHORT WAVE TROUGH SPREADING FROM NORTHEAST TEXAS TO THE MIDDLE MISSISSIPPI VALLEY HAS SPAWNED SEVERE WEATHER THROUGH MUCH OF OKLAHOMA. THE RIDGE OVER THE SOUTHEASTERN GULF OF MEXICO WILL RETREAT TO THE EAST AHEAD OF THE TROUGH OVER THE CENTRAL PLAINS STATES WHILE IT CONTINUES ITS MARCH TO THE EAST. ON THE HEELS OF THE FRONT PASSING THROUGH THE KEYS LATE FRIDAY NIGHT WILL BE AN IMMENSE AREA OF HIGH PRESSURE WHICH WILL AIDE THE PASSAGE OF THE FRONT.
A LARGE UPPER LEVEL RIDGE AXIS OVER THE WEST WILL MOVE ACROSS THE ROCKIES INTO THE CENTRAL CONUS OVER THE WEEKEND. WILL BE GOING WITH HIGHS IN THE LOWER 70S ACROSS EXTREME WESTERN KANSAS TO AROUND 60 FROM HAYS TO PRATT.
MAIN FORECAST CONCERN WILL BE THE COLD FRONT THAT WILL MOVE THROUGH SOUTH TEXAS THIS MORNING. HI-RES MODELS INDICATE A THIN LINE OF SHOWERS WILL BE POSSIBLE JUST ALONG AND BEHIND THE FRONT COLD FRONT THIS MORNING. THE REMAINDER OF THE SHORT TERM FORECAST WILL BE TRANQUIL AS HIGH PRESSURE SETTLES INTO THE AREA.
/ISSUED 406 AM CDT THU MAR 26 2015/ COLD FRONT HAS PUSHED WELL SOUTH OF THE AREA. MAKING FOR A NOTICEABLY COOLER DAY ESPECIALLY IN THE SOUTHEASTERN TEXAS PANHANDLE. A FEW MID-LEVEL CLOUDS CAN LEAD TO A SLIGHTLY WARMER OVERNIGHT PERIOD. TEMPERATURES WILL BE QUICK TO REBOUND BACK INTO THE 70S FRIDAY AS HEIGHTS RISE ON THE EASTERN PERIPHERY OF AN AMPLIFIED UPPER RIDGE OVER THE WESTERN CONUS. THIS RIDGE WILL GRADUALLY SHIFT TO THE EAST THIS WEEKEND. ALTHOUGH AN UPPER-LEVEL DISTURBANCE PASSING OVER THE INTER-MOUNTAIN WEST REGION WILL HELP TO DE-AMPLIFY THE RIDGE.
COOLER AIR IS FORTHCOMING. WITH FREEZING TEMPS ANTICIPATED FA WIDE SO HEADLINES WILL LIKELY FOLLOW.
THE COLD FRONT WHICH SWEPT THROUGH WEST TEXAS YESTERDAY WAS ALREADY MOVING THROUGH DALLAS TO THE EAST AND SONORA TO THE SOUTH. LONG WAVE RIDGING OVER THE WESTERN CONUS WILL BREAK DOWN AND MOVE EAST BY THE END OF THE WEEK LEADING TO A MORE PROGRESSIVE PATTERN.
TEMPS WILL TURN NOTICEABLY COOLER. THE COLDER AIR WILL BE IN COMMAND WITH LOWS IN THE LOWER TO MID 30S. DEEP THERMAL TROUGH WILL BE IN PLACE DURING THE DAY ON FRIDAY.
STRENGTHENING HIGH PRESSURE ALOFT WILL THEN BRING EVEN WARMER TEMPERATURES. A RIDGE OF HIGH PRESSURE ALOFT ALONG THE WEST COAST WILL AMPLIFY SOME MORE TODAY AND EVENTUALLY SHIFT EASTWARD THE NEXT COUPLE OF DAYS. THIS EASTWARD SHIFT IN THE RIDGE AXIS WILL BE IN RESPONSE TO A WEATHER SYSTEM APPROACHING THE CALIFORNIA COAST THIS WEEKEND.
STRONG HIGH PRESSURE WILL ADVANCE INTO NEVADA THROUGH FRIDAY.
339 AM CDT THU MAR 26 2015 RELATIVELY QUIET WEATHER THIS MORNING AS SYSTEM PULLS AWAY TO THE SOUTH AND HIGH PRESSURE MOVES INTO THE MISSOURI RIVER VALLEY. SOUNDINGS WOULD INDICATE THE LOW LEVELS REMAIN QUITE DRY ACRS THE WEST AND WOULD ANTICIPATE SOME VIRGA AND AT MOST.
THE ANSWER LOOKS TO LIE WITH A COLD FRONT THAT WAS APPROACHING THE INTERNATIONAL BORDER EARLY THIS MORNING.
DEEP TROUGH AXIS WILL SETUP OVER THE MISSISSIPPI VALLEY AND WILL THEN SLIDE EAST THIS WEEKEND.
Thursday through the weekend will be much warmer than average with afternoon temperatures in the 60s and even some lower 70s down in the Columbia Basin. Precipitation chances will be tied to two cold front passages.
REMNANTS OF THE WARM FRONTAL CLOUDINESS ACROSS CENTRAL IDAHO WILL DECREASE TODAY. UPPER RIDGE AXIS TO OUR WEST WILL SHIFT ACROSS THE AREA THROUGH FRIDAY.
648 AM EDT THU MAR 26 2015 THE COLD FRONT THAT MOVED THROUGH YESTERDAY WAS STALLED ACROSS SOUTHERN OHIO AND WESTERN PENNSYLVANIA.
FAST NORTHWEST FLOW ALOFT CONTINUES EARLY THIS AM ON THE EAST SIDE OF A HIGH-AMPLITUDE UPPER- LEVEL RIDGE OVER THE WESTERN CONUS. 09Z WATER VAPOR SATELLITE LOOP SHOWS A PLUME OF MID/HIGH LEVEL MOISTURE SPREADING SOUTHWARD ACROSS CENTRAL MT ALONG THE EDGE OF THE RIDGE. TRANQUIL WEATHER EXPECTED FOR FRI AS THE RIDGE AXIS SHIFTS EASTWARD INTO THE ROCKIES. IT WILL BE WARMER WITH GFS H7 TEMPS CLIMBING BACK ABOVE 0 DEG C. SOUNDINGS SUGGEST DEEP MIXING WITH AMPLE SUNSHINE BENEATH THE RIDGE.
LATEST SATELLITE IMAGERY INDICATED A BROAD UPPER TROUGH EXTENDING FROM THE NORTHERN MISSISSIPPI VALLEY DOWN TO THE SOUTHERN PLAINS. THIS WAS ASSOCIATED WITH A SLOW MOVING COLD FRONT EXTENDING FROM THE OHIO VALLEY TO THE SOUTHERN PLAINS. HIRES AND SREF PROBS SHOWS SOME PATCHY FOG ACROSS THE SOUTHEAST WHERE THE LOW LEVEL FLOW WILL BE LIGHT UNTIL MID MORNING. THE UPPER TROUGH AXIS WILL CROSS THE REGION FOR TONIGHT INTO FRIDAY. FOR FRIDAY UNDER FULL INSOLATION IT WILL BE A COOLER DAY WITH HIGHS IN THE MIDDLE 50S NORTH TO THE LOWER 60S SOUTH.
/ISSUED 844 PM EDT WED MAR 25 2015/ THE WIND FLOW OVER SOUTH FLORIDA FOR LATE TONIGHT WILL BE MAINLY FROM THE SOUTHERLY DIRECTION ALLOWING FOR THE LOW LEVEL MOISTURE TO CONTINUE TO WORK INTO THE AREA FROM THE SOUTH.
A SECOND DISTURBANCE ACROSS WRN MT WILL BE AFFECTING WRN NEB TONIGHT AS A WARM FRONT DEVELOPS. ARCTIC HIGH PRESSURE ACROSS MANITOBA WILL MOVE SOUTH TODAY TO NEAR WINNIPEG AND THEN INTO SRN ONTARIO BY FRIDAY MORNING. MODEL PLUMES SHOW STRONG NORTHWEST WINDS AHEAD OF THE COLD FRONT ACROSS SWRN NEB. A WARM FRONT SHOULD DEVELOP TONIGHT ACROSS WRN NEB AS THE HIGH MOVES EAST INTO ONTARIO. FURTHER EAST INTO CENTRAL NEBRASKA TEMPERATURES WILL REMAIN COOLER AS H85 REMAIN AROUND 0C TO 5C.
649 AM EDT THU MAR 26 2015 A COLD FRONT CONTAINING COPIOUS MOISTURE WILL PUSH ACROSS THE AREA TODAY.
A COLD FRONT AND ASSOCIATED LINE OF SHOWERS AND THUNDERSTORMS STRETCHED FROM MENA TO BATESVILLE AS OF 05Z.
UPPER LEVEL RIDGING SHOULD CONTINUE OVER THE SOUTHWESTERN CONUS THROUGH THE WEEKEND.
MODELS INDICATE NORTHERLY FLOW CONTINUING THROUGH FRIDAY AS A STRONG UPPER LEVEL RIDGE OVER THE WESTERN UNITED STATES SLOWLY SLIDES EASTWARD INTO THE ROCKY MOUNTAIN REGION FOR LATE THIS WEEK AND INTO THIS WEEKEND. TEMPERATURES WILL BE AROUND 10 DEGREES WARMER ON FRIDAY COMPARED TO THURSDAY. AS THE UPPER LEVEL RIDGE SLIDES FURTHER EAST INTO WYOMING AND COLORADO. BUT STILL EXPECTED LESS WIND COMPARED TO THURSDAY AS THE LOW TO MIDLEVEL GRADIENT RELAXES A BIT.
COLD FRONT NOW PUSHING EWD INTO W TX AND STRONG NORTH WINDS OVER THE ERN PLAINS WILL GRADUALLY DIMINISH AFTER 26/09Z. A BACKDOOR COLD FRONT WILL SWEEP THROUGH THE EASTERN PLAINS TONIGHT AS A PACIFIC COLD FRONT MOVES SOUTHEAST ACROSS WESTERN NEW MEXICO.
LOW PRESSURE WILL TRACK ACROSS THE WESTERN PART OF THE STATE LATER TODAY. DRAGGING A TRAILING COLD FRONT THROUGH THE STATE.
AN UPPER RIDGE WILL BE OVER THE AREA TODAY FOR DRY WEATHER.
THE COLD FRONT WAS LOCATED FROM NEAR TYLER TEXAS TO WACO. TAKE AN UMBRELLA TODAY IF YOU PLAN TO GO OUT ANYWHERE NEAR THE COLD FRONT PASSAGE.
358 AM EDT THU MAR 26 2015 THE COLD FRONT THAT MOVED THROUGH YESTERDAY WAS STALLED ACROSS SOUTHERN OHIO AND WESTERN PENNYSYLVANIA.
A WARMING TREND IS UNDERWAY AND WILL PERSIST THROUGH FRIDAY AS HIGH PRESSURE BUILDS OVER THE COAST. MEANWHILE A FAIRLY STRONG UPPER LEVEL RIDGE IS PUSHING EASTWARD OVER CALIFORNIA WITH THE RIDGE AXIS EXPECTED TO BE CENTERED OVER THE STATE TODAY. WITH WARMEST AREAS HEATING INTO THE LOWER 90S. HOWEVER THE REST OF THE DISTRICT IS EXPECTED TO SEE SOME COOLING AS THE UPPER RIDGE WEAKENS AS A DRY FRONTAL BAND APPROACHES THE COAST SWITCHING THE WINDS TO ONSHORE.
230 AM PDT THU MAR 26 2015 HIGH PRESSURE ALOFT OVER CALIFORNIA COMBINED WITH WEAK OFFSHORE WILL BRING WARMING TODAY WITH WELL ABOVE AVERAGE TEMPERATURES WEST OF THE MOUNTAINS.
Also made some adjustments to hourly temps as temperatures at this time are warmer in the east and cooler in the west than the forecast was showing. As the low moves off to the northeast, it will drag a cold front through central Kentucky this morning. Showers will spread across the forecast area after 12Z with a few thunderstorms continuing to be possible ahead of the cold front. Much cooler temperatures are expected tonight with lows in the lower to mid 30s. For tomorrow an upper level trough will be in place across the eastern CONUS.
UPPER LEVEL RIDGE IS STRENGTHENING TODAY WITH A PEAK FRI NIGHT.
MESOSCALE MODELS SUGGEST A SHARP WARM UP AHEAD OF THE COLD FRONT EXTENDING THROUGH THE WYOMING VALLEY AND INTO THE LOWER SUSQUEHANNA REGION. INCLUDED MENTION OF ISOLATED THUNDER OVER THE SERN FA AHEAD OF THE COLD FRONT FOR THIS AFTERNOON, BASED ON ANALYSIS OF LAPSE RATES AND K-INDICES.
MUCH WARMER TEMPS TODAY FOLLOWED BY MUCH COOLER TEMPS THIS. INCREASING RAIN CHANCES THROUGH FRIDAY AS A STRONG COLD FRONT.
304 AM PDT THU MAR 26 2015 HIGH PRESSURE WILL BRING VERY MILD AFTERNOON TEMPERATURES THROUGH TOMORROW, WITH RECORD HIGH TEMPERATURES EXPECTED ON FRIDAY.
405 AM CDT THU MAR 26 2015 WATER VAPOR LOOP INDICATED AN UPPER LEVEL RIDGE BUILDING OVER THE WEST COAST. UPPER LEVEL RIDGE FORECAST TO BUILD OVER THE WEST THEN BEGIN SHIFTING EAST AFTER 48 HOURS. UPPER LEVEL RIDGE FORECAST TO MOVE OVER THE FORECAST AREA BY SAT. UPPER LEVEL TROUGH OVER THE EASTERN PACIFIC WILL MOVE ACROSS THE NORTHERN PLAINS LATE SAT AND PRODUCE ANOTHER ROUND OF RAIN AND/OR SNOW.
1226 AM CDT THU MAR 26 2015 UPPER LEVEL TROF OVER NORTHERN MINNESOTA CONTINUES TO MOVE STEADILY EASTWARD AS OF MID-AFTERNOON. WINDS WILL TURN TO THE NORTH AS A SECONDARY SURGE OF ARCTIC AIR MOVES SOUTHWARD BEHIND THE DEPARTING TROF. HIGH PRESSURE SHOULD ALLOW FOR CLEARING SKIES DURING THE DAY THURSDAY. BUT RAIN AND SNOW IS POSSIBLE THE SECOND HALF OF THE WEEKEND WITH A PASSING LOW PRESSURE SYSTEM.
156 AM EDT THU MAR 26 2015 A SLOW MOVING WARM FRONT WILL PUSH INTO PENNSYLVANIA EARLY THURSDAY. LOW PRESSURE WILL TRACK ACROSS THE WESTERN PART OF THE STATE LATE THURSDAY. DRAGGING A TRAILING COLD FRONT THROUGH THE STATE.
AND FRIDAY SHARP UPPER TROUGH WILL MOVE ACROSS THE AREA THIS AFTERNOON AND EVENING. A SURFACE COLD FRONT IS OUT AHEAD OF IT BY ABOUT SIX HOURS. THE UPPER TROUGH COMBINED WITH INCREASING INSTABILITY OF THE AIR FLOWING ACROSS LAKE SUPERIOR WILL PRODUCE LAKE EFFECT SNOW SHOWERS ACROSS THE FAR NORTHCENTRAL PART OF THE FORECAST AREA TODAY. WENT A LITTLE WARMER THAN MOS GUIDANCE DUE TO LACK OF SNOW COVER OVER ALL BUT THE NORTH AND ENOUGH BOUNDARY LAYER WINDS OVER THE EAST TO KEEP SOME SURFACE WINDS.
Skies are mostly clear across interior Northern California as high pressure builds into the area. Highs will be in the lower to mid 80s today with the ridge axis overhead, and again Friday as the ridge shifts eastward. An upper level trough will approach the West Coast late Friday. The current consensus is for the trough to split, with a closed low possibly forming off the Southern California coast.
301 AM EDT THU MAR 26 2015 LOW PRESSURE WILL MOVE NORTHEAST OUT OF THE OHIO RIVER VALLEY TODAY AND MOVE ACROSS SOUTHERN NEW ENGLAND THIS EVENING.
406 AM CDT THU MAR 26 2015 COLD FRONT HAS PUSHED WELL SOUTH OF THE AREA. MAKING FOR A NOTICEABLY COOLER DAY ESPECIALLY IN THE SOUTHEASTERN TEXAS PANHANDLE. A FEW MID-LEVEL CLOUDS CAN LEAD TO A SLIGHTLY WARMER OVERNIGHT PERIOD. TEMPERATURES WILL BE QUICK TO REBOUND BACK INTO THE 70S FRIDAY AS HEIGHTS RISE ON THE EASTERN PERIPHERY OF AN AMPLIFIED UPPER RIDGE OVER THE WESTERN CONUS. THIS RIDGE WILL GRADUALLY SHIFT TO THE EAST THIS WEEKEND. ALTHOUGH AN UPPER-LEVEL DISTURBANCE PASSING OVER THE INTER-MOUNTAIN WEST REGION WILL HELP TO DE-AMPLIFY THE RIDGE.
An upper level high pressure ridge is over the West Coast and this ridge will gradually move over the Rockies by Friday. At lower levels, a surface trof is in place along the lee of the Rockies and west winds extend across the plains. A series of upper level disturbances will move through the top of the ridge and keep this lee trof in place through Friday.
309 AM CDT THU MAR 26 2015 A MUCH COOLER AND DRIER AIR MASS DESCENDS INTO THE UPPER MIDWEST TODAY. OTHERWISE COOL AND DRY AS HIGH PRESSURE MOVES ACROSS NORTHERN MINNESOTA TONIGHT INTO TOMORROW. COOLER. NEAR CALM WINDS AS THE HIGH PRESSURE BECOMES CENTERED OVER NORTHERN MINNESOTA. HIGHS IN THE LOW TO MID 30S. THE UPPER FLOW WILL BE NORTHWEST THROUGH MUCH OF THE PERIOD A WESTERN RIDGE PERSISTING.
230 AM CDT THU MAR 26 2015 A LONGWAVE UPPER TROUGH.
Friday may be one of the nicest days for a little while with high pressure overhead and high temperatures near record values.
HIGH PRESSURE WILL MAINTAIN DRY WEATHER CONDITIONS THROUGH FRIDAY.
433 AM EDT THU MAR 26 2015 WARM CONDITIONS EXPECTED TODAY AHEAD OF A COLD FRONT WHICH IS EXPECTED TO SLOWLY SHIFT SOUTH THROUGH OUR REGION LATE TONIGHT AND EARLY FRIDAY.
303 AM EDT THU MAR 26 2015 WARM CONDITIONS EXPECTED TODAY AHEAD OF A COLD FRONT WHICH IS EXPECTED TO SLOWLY SHIFT SOUTH THROUGH OUR REGION LATE TONIGHT AND EARLY FRIDAY.
A COLD FRONT LIES OVER KY INTO NORTHERN AR AND TX APPROACHING THE MS RIVER. UPPER TROUGH MOVING INTO THE CENTRAL STATES WITH COLD FRONT OVER OHIO VALLEY TO MOVE EAST SOUTHEAST. HIGHS TODAY WILL BE ONCE AGAIN BE IN THE LOWER TO MID 70S AND THEN FALL DURING THE AFTERNOON AS THE FRONT MOVES THROUGH.
319 AM CDT Thu Mar 26 2015 A cold front has pushed south through the region fairly quickly tonight with gusty north winds persisting areawide. High temperatures will be about 20 degrees cooler than yesterday with readings in the 60s most places. Dry NW flow aloft will develop today as an upper trough moves east of the region. At the surface, lee troughing will develop by Friday resulting in the return of downsloping SW winds at the surface.
THE UPPER RIDGE OFFSHORE CONTINUES TO BUILD THIS EVENING. MEANWHILE THE ASSOCIATED WARM FRONT CONTINUES TO LIFT NORTH ACROSS WASHINGTON. MOISTURE WITHIN THE NORTHWEST FLOW ON THE EAST SIDE OF THE UPPER RIDGE CONTINUES TO FLOW ACROSS OUR WASHINGTON ZONES INTO THE NORTHEAST CORNER OF OREGON. AS SUCH HAVE SEEN LIGHT PRECIP PERSISTING OVER THE LOWER BASIN EAST THROUGH THE BLUES TO WALLOWA COUNTY, AND OVER PORTIONS OF THE WASHINGTON CASCADE EAST SLOPES.
WHICH ARE RUNNING GENERALLY IN THE LOW TO MID 20S ACROSS THE FORECAST AREA. WEAK LOW PRESSURE SLIDES SOUTHEAST ACROSS THE HIGH PLAINS WITH AN AREA OF LIGHT RAIN AND SNOW MOVING SOUTHEAST ACROSS WESTERN AND CENTRAL SD.
THE AXIS OF A BROAD UPPER TROUGH WAS SWEEPING ACROSS THE SE CORNER OF THE STATE AS OF 3 PM. AND VIGOROUS RAIN/SNOW SHOWERS ASSOCIATED WITH THE SFC COLD FRONT WERE EDGING TO THE SOUTH/SOUTHEAST. TEMPS IN THE 40S AND LOWER 50S THIS MORNING RAPIDLY DROPPED INTO THE LOWER TO MID 30S WITH THE SFC FRONT. AN UPPER RIDGE WILL BUILD INTO THE 4 CORNERS AREA TONIGHT. AND 40S AND 50S FOR THE HIGHER VALLEYS AND TERRAIN.
HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE LOWLANDS.
410 AM EDT THU MAR 26 2015 SHOWERS EXPECTED TODAY WITH A CHANCE OF THUNDERSTORMS DURING THE LATE MORNING AND AFTERNOON AS LOW PRESSURE CROSSES THE REGION. AS THE LONGWAVE PATTERN AMPLIFIES ACROSS THE EASTERN STATES A COLD FRONT WILL SLOWLY TRANSITION ACROSS THE REGION TODAY WITH THE FRONTAL BOUNDARY EAST OF THE FORECAST AREA BY EARLY THIS EVENING. WITH MAIN POTENTIAL IMPACT BEING STRONG WIND GUSTS WITH LAPSE RATES RANGING FROM 8-10 C/KM IN THE LOWER LEVELS AND A FAIR AMOUNT LOW LEVEL SHEAR.
450 AM EDT THU MAR 26 2015 LOW PRESSURE WILL MOVE INTO WESTERN PENNSYLVANIA THIS AFTERNOON AND BRING AN END TO THE PRECIPITATION BY ABOUT MIDDAY. WITH HIGHS MAINLY IN THE UPPER 30S NEAR LAKE MICHIGAN TO THE LOWER TO MID 40S ELSEWHERE. LOWS TONIGHT WILL DIP INTO THE LOWER TO MID 20S. RAPIDLY INCREASING SFC PRESSURE FALLS OVER SWRN OH LIKELY SIGNALING RAPID NERLY ENERGY TRANSFER ALONG FGEN BOUNDARY AS DEEP POSI TILTED LATITUDINAL TROF WITH ACTIVE SRN PLAINS PVU FOLD CONTS EWD PROGRESSION TODAY. STILL NOT ABLE TO ESCAPE THE COLD WEATHER PATTERN AS YET ANOTHER ARCTIC FRONT AND ASSOCIATED ANOMALOUSLY AMPLIFIED UPPER LEVEL TROF WILL EXTEND OVER THE UPPER GREAT LAKES EARLY THIS PERIOD.
357 AM EDT THU MAR 26 2015 A SURFACE COLD FRONT IS CURRENTLY ALIGNED FROM NORTHEAST OHIO DOWN THROUGH NORTH CENTRAL AND SOUTHWESTERN KENTUCKY. THE MODELS HAVE REMAINED IN PRETTY GOOD AGREEMENT WITH THE DEVELOPING DEEP LONG WAVE TROUGH TO MOVE EAST ACROSS THE MISSISSIPPI VALLEY. SHOWERS AND SCATTERED THUNDERSTORMS WILL GIVE WAY TO MAINLY RAIN BEHIND THE DEPARTING COLD FRONT. WITH THE SOUTHEAST LIKELY SEEING THE HIGHER AMOUNTS OF QPF. DRY SLOTTING WILL WORK IN TONIGHT BEHIND AN INITIAL DEPARTING SHORT WAVE TROUGH. THE MAIN TROUGH AXIS WILL MOVE THROUGH THE AREA DURING THE AFTERNOON HOURS. TO THE LOW TO MID 70S IN FAR EAST AND SOUTHEAST. WITH LOWS TONIGHT BOTTOMING OUT IN THE LOW TO MID 30S. GUIDANCE IS IN GOOD AGREEMENT WITH THE BASE OF THE AMPLIFIED TROUGH AXIS MOVING ACROSS THE OHIO VALLEY TO BEGIN THE PERIOD.
THIS SLIGHTLY WARMER EXPECTATION FOR THURSDAY DROPS AFTERNOON RELATIVE HUMIDITY VALUES BELOW 25 PERCENT IN A HANDFUL OF FAR SOUTHWESTERN COUNTIES.
414 AM EDT THU MAR 26 2015 THE GLOBAL MODELS HAVE BEEN VERY CONSISTENTLY INDICATING MORE SOUTHERLY FLOW AND INCREASING MOISTURE ACROSS THE REGION TODAY IN ADVANCE OF A STRONG COLD FRONT FORECAST TO APPROACH THE EASTERN SEA BOARD AND INTO THE CENTRAL GULF TONIGHT INTO FRIDAY MORNING.
A COLD FRONT EXTENDS NORTHEASTWARD FROM SONORA TO SAN SABA TO FORT WORTH AREA. COOLER TEMPERATURES ARE EXPECTED TODAY WITH HIGHS ONLY REACHING THE MID TO UPPER 60S.
A FEW READINGS IN THE LOW 20S ARE BEING OBSERVED AS WELL. AN AXIS OF HIGH PRESSURE IS DRAPED OVER THE HIGH PLAINS. NORTHWEST FLOW EXTENDS FROM SOUTHWEST CANADA TO THE HIGH PLAINS. DRY AND WARMER WEATHER IS FORECAST. WE SHOULD OBSERVE RAPID PRESSURE FALLS THIS AFTERNOON AS THE LOW DEEPENS. HIGH TEMPERATURES SHOULD REACH THE LOW 60S ALTHOUGH THERE ARE SOME CONCERNS THAT THE BREEZY/WINDY CONDITIONS MAY HOLD TEMPERATURES DOWN A COUPLE DEGREES.
328 AM CDT THU MAR 26 2015 A COLD FRONT CURRENTLY STRETCHES FROM PARIS TENNESSEE TO JUST SOUTH OF JONESBORO ARKANSAS. HIGHS WILL RANGE FROM THE LOWER 50S TO THE MID 60S. ADDITIONAL CLOUDS WILL ROLL INTO THE AREA AFTER MIDNIGHT AS AN UPPER TROF PUSHES INTO THE AREA. THE UPPER TROF WILL CONTINUE TO BRING SMALL CHANCES FOR SHOWERS ON FRIDAY. LINGERING CLOUDS FROM THE UPPER TROF WILL OCCUR OVER NORTHEAST MISSISSIPPI AND PORTIONS OF WEST TENNESSEE FRIDAY EVENING BUT EXPECT ALL SHOWER ACTIVITY TO BE EAST OF THE CWA. WITH CLOUD COVER EXPECTED OVER THE ENTIRE CWA OVER AT LEAST SOME PORTION OF THE NIGHT SHOULD KEEP LOW TEMPERATURES ABOVE FREEZING.
351 AM CDT THU MAR 26 2015 THE COLD FRONT CONTINUES TO QUICKLY PUSH SOUTHEAST AND IS JUST ABOUT OUT OF THE CWA. TEMPERATURES WILL BE MUCH COOLER THAN YESTERDAY WITH COLD ADVECTION CONTINUING THROUGH THE DAY. HOWEVER THE SPRING SUNSHINE WILL HELP WARM TEMPS INTO THE LOW TO MID 60S BY LATE AFTERNOON. THE UPPER LEVEL PATTERN FRIDAY AND THIS WEEKEND WILL FEATURE A LARGE RIDGE ACROSS THE WESTERN U. WITH A DEEP TROUGH OVER THE EAST.
SHOWERS ARE POSSIBLE LATE IN THE DAY AS A COLD FRONT APPROACHES.
347 AM CDT Thu Mar 26 2015 (Today and tonight) A cold front has pushed through all of West Central Texas early this morning. Much cooler temperatures are forecast today, with highs generally in the mid 60s. The one exception will be across the Big Country where winds may stay in the 8 to 12 mph range overnight, which would result in slightly warmer temperatures.