Aikyam-Lab/Synoptic-Bench huggingface dataset:
THERE WILL BE AN ALBERTA CLIPPER SLASH COLD FRONT DROPPING RAPIDLY ACROSS THE AREA FROM THE NORTH STARTING LATER THIS EVENING AND INTO THURSDAY.
GUIDANCE INDICATES THE HIGHEST CHC FOR TSRA FM THIS EVENING INTO OVERNIGHT AS AN IMPULSE ALOFT TRAVELS OVER THE REGION. BACK TO THE WEST AN UPPER LEVEL LOW WILL SWING INTO THE FOUR CORNERS REGION BY THIS AFTERNOON AND WILL PROVIDE FURTHER LIFT FOR STORM SUPPORT. DAYTIME HEATING AND THE APPROACHING UPR LVL TROF THIS AFTERNOON WILL ALLOW STORMS COVERAGE TO INCREASE AND THERE WILL BE A SLIGHT THREAT THAT A STORM OR TWO MAY BECOME SEVERE WITH THE MAIN THREAT FROM HAIL AND WINDS.
305 PM EDT WED MAR 30 2016 LOW PRESSURE WILL APPROACH TONIGHT AND THURSDAY AND TRACK NORTH OF THE AREA THURSDAY NIGHT.
CLOSED LOW WAS BACK NEAR THE UT/AZ BORDER AREA. DRY LINE EXTENDED SWD FROM THE LOW NW OF KOMA INTO KS. TROUGH AXIS WILL SHIFT PAST THE AREA BY 00Z SAT. THEN SAT WILL BE WARMER. PATTERN STARTS OUT WITH A RIDGE AT 500 MB FROM JUST OFF THE PACIFIC NW COAST UP INTO AK AND A TROUGH FROM HUDSON BAY DOWN INTO THE MID ATLANTIC STATES. LOOK FOR HIGHS SUN MAINLY IN THE LOWER 70S.
ESPECIALLY EAST OF THE LARAMIE RANGE WHERE SFC TEMPS ARE AROUND FREEZING.
AN AREA OF HIGH PRESSURE OVER THE CAROLINAS WILL DRIFT EASTWARD THROUGH EARLY THURSDAY. AN AREA OF LOW PRESSURE AND ATTENDANT COLD FRONT WILL APPROACH FROM THE WEST THURSDAY.
The broad open upper low moving through Colorado weakens to an open wave as it moves through Nebraska tonight. Beyond significantly cooler lows tonight by about 20 degrees owing to drier air and radiational cooling, cooler and still windy conditions are seen Thursday afternoon.
134 PM PDT WED MAR 30 2016 AS LOW PRESSURE OVER THE GREAT BASIN MOVES EAST. HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH THIS WEEKEND WITH A WARMING AND DRYING TREND. SHOWER ACTIVITY IS POSSIBLE THROUGH THIS EVENING AS WRAP-AROUND MOISTURE FLOWS FROM THE NORTHEAST OVER THESE AREAS AND INTO SOUTHERN CA WHILE A TROUGH REMAINS OVER MUCH OF THE WESTERN U. WITH A HIGH AMPLITUDE RIDGE OVER THE EASTERN PACIFIC. EXPECT THIS RIDGE TO GRADUALLY MOVE INLAND OVER THE NEXT FEW DAYS.
350 PM CDT WED MAR 30 2016 MID-AFTERNOON SFC ANALYSIS SHOWS THE WARM FRONT HAS WASHED OUT TO OUR NORTH WITH UPPER 60S/LOWER 70S DEWPOINTS ACROSS THE ENTIRE FORECAST AREA. A COLD FRONT IS NOTED TO OUR WEST. EXTENDING FROM LOW PRESSURE OVER THE SRN PLAINS TO ANOTHER LOW OVER WRN TX. MEANWHILE ANOTHER LOW DEEPENING OVER SRN TX AND ITS GRADIENT WITH PERSISTENT HIGH PRESSURE OFF THE CAROLINAS HAS FINALLY ALLOWED ELEVATED SRLY WINDS TO DEVELOP ACROSS PORTIONS OF THE AREA. WATER VAPOR IMAGERY SHOWS A DEEP MID/UPPER-LEVEL TROF OVER THE WRN CONUS WITH AN EMBEDDED LOW SPINNING ACROSS THE ROCKIES AND A WEAK DISTURBANCE CROSSING ERN TX.
AND SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE REMAINDER OF THE LOWER MISSISSIPPI VALLEY. STRONG SOUTHERLY WINDS ON THE BACK SIDE OF HIGH PRESSURE HAS ADVECTED LOW LEVEL MOISTURE UP FROM THE GULF OF MEXICO. SHORT TERM MODELS INDICATE INCREASED INSTABILITY WITH VALUES APPROACHING OR EXCEEDING 2000 J/KG AFTER THE INITIAL MORNING ACTIVITY MOVES OUT AND ADDITIONAL SHOWERS AND THUNDERSTORMS DEVELOP ACROSS THE LOWER MISSISSIPPI VALLEY. ESPECIALLY TOWARDS THURSDAY AFTERNOON/EVENING AS A COLD FRONT FINALLY PUSHES THROUGH THE MID SOUTH BY THURSDAY NIGHT.
A MID/UPPER TROUGH OVER THE CENTRAL GREAT BASIN AREA EARLY THIS MORNING IS PROGGED TO LIFT EAST/NORTHEAST ACROSS THE CENTRAL PLAINS STATES THROUGH TONIGHT. STORMS MAY LINGER THROUGH THE EVENING HOURS BEFORE THE FOCUS SHIFTS EAST OF THE AREA AFTER MIDNIGHT AS A COLD FRONT EVENTUALLY MOVES OVER THE AREA. A RETURN TO MORE SEASONABLE TEMPERATURES AND DRY WEATHER CONDITIONS IS ANTICIPATED ON THURSDAY IN THE WAKE OF THE COLD FRONT.
329 PM EDT WED MAR 30 2016 A LOW PRESSURE SYSTEM DEVELOPING IN NEBRASKA WILL TRACK EAST TONIGHT REACHING MICHIGAN ON THURSDAY. THIS WILL DRAW DOWN A MUCH COOLER AIRMASS THAT WILL SETTLE IN THROUGH THE WEEKEND. AS THE COLD FRONT PASSES THROUGH DURING THE AFTERNOON.
A WARM FRONT EXTENDED FROM THIS LOW TO EAST ACROSS CENTRAL IOWA INTO NORTHERN IL. THIS LOW IS FORECAST TO MOVE TO THE ENE THROUGH THE REST OF THE SHORT TERM PERIOD. SOME POSSIBLY SEVERE ARE POSSIBLE AS THE LOW MOVES THROUGH THE AREA. ONCE THE COLD FRONT AND LOW SLIDE THROUGH THE AREA.
19Z water vapor imagery shows an upper trough from the upper midwest through the desert southwest. The upper low is positively tilted and slowly shearing out over CO. Forcing from the upper low to the west and some sunshine along the dryline should weaken the inhibition. Most of the high res guidance shows the thunderstorms filling into a broken line and moving east of the forecast area between 7 and 9 PM. Cold air advection is expected to persist through the day Thursday, but the boundary layer mixes fairly deeply so highs should be in the lower 60s. However moisture is expected to be a little more limited due to the low level dry air advection.
UPPER AIR ANALYSIS THIS MORNING SHOWED A DEEP TROUGH OVER THE WESTERN US WITH SOUTHWESTERLY FLOW OVER TEXAS. THE UPPER TROUGH WILL DIG DOWN INTO NORTHERN MEXICO DURING THIS PERIOD AND THE UPPER FLOW WILL REMAIN FROM THE SOUTHWEST. WITH THE UPPER LEVEL TROUGH STILL TO OUR WEST.
AHEAD OF AN APPROACHING UPPER-LEVEL STORM OVER THE LOWER MISSISSIPPI VALLEY. AHEAD OF THIS SYSTEM AND IT'S ASOCIATED COLD FRONT. SOME DEEPER MOISTURE ADVECTION WILL TAKE PLACE DURING THE AFTERNOON AHEAD OF AN APPROACHING COLD FRONT.
129 PM EDT WED MAR 30 2016 HIGH PRESSURE WILL PROVIDE DRY WEATHER TODAY.
MID-LEVEL WINDS BECOME SOUTHWESTERLY AS A 500-MB TROF DROPS INTO SONORA STATE IN MEXICO.
LATEST TEMPERATURE TREND FOR TONIGHT IS WARMER. PRECIPITATION MAY START OUT AS RAIN AS SURFACE TEMPERATURES REMAIN ABOVE FREEZING THROUGH THE EVENING HOURS. ANY SNOW THAT DOES FALL WILL LIKELY MELT BY THE AFTERNOON AS TEMPERATURES ONCE AGAIN CLIMB ABOVE FREEZING.
513 PM EDT WED MAR 30 2016 A LOW PRESSURE SYSTEM DEVELOPING IN NEBRASKA WILL TRACK EAST TONIGHT REACHING MICHIGAN ON THURSDAY. THIS WILL DRAW DOWN A MUCH COOLER AIRMASS THAT WILL SETTLE IN THROUGH THE WEEKEND. AS THE COLD FRONT PASSES THROUGH DURING THE AFTERNOON.
THE COOLER POST-FRONTAL AIRMASS WILL HELP KEEP OUR TEMPERATURES A COUPLE DEGREES BELOW NORMAL FOR THIS TIME OF YEAR ON THURSDAY. YET ANOTHER COLD FRONT IS EXPECTED THURSDAY EVENING.
A STRONG DISTURBANCE ON THE NOSE OF A 120KT JET STREAK WILL PUSH QUICKLY INTO THE AREA THIS EVENING SPREADING GOOD DIVERGENCE AND QG FORCING ALOFT AND PUSHING A COLD FRONT THROUGH THE REGION. MODELS DEPOSIT UP TO A QUARTER INCH OF PRECIPITATION OVER THE LOWER ELEVATIONS INTO TOMORROW MORNING WITH THIS SYSTEM.
156 PM CDT WED MAR 30 2016 19Z water vapor imagery shows an upper trough from the upper midwest through the desert southwest. The upper low is positively tilted and slowly shearing out over CO. Forcing from the upper low to the west and some sunshine along the dryline should weaken the inhibition. Most of the high res guidance shows the thunderstorms filling into a broken line and moving east of the forecast area between 7 and 9 PM. Cold air advection is expected to persist through the day Thursday, but the boundary layer mixes fairly deeply so highs should be in the lower 60s. However moisture is expected to be a little more limited due to the low level dry air advection.
GRAVITY WAVE HAS SINCE SHIFTED EAST WITH FOCUS NOW TURNING TO AN EXPECTED AREA OF LOW PRESSURE THAT IS PROG TO DEVELOP TONIGHT ALONG THE RIO GRANDE. THIS LOW SHOULD SHIFT EASTWARD OVERNIGHT BEFORE SHEARING APART ALONG THE COAST THURSDAY MORNING. UNCERTAINTY AS TO HOW FAR EAST AXIS OF LOW PRESSURE WILL SHIFT RESULTS IN A QUESTIONABLE TEMP FORECAST. MOISTURE THEN BRIEFLY POOLS ACROSS THE CWA THURSDAY NIGHT AS ANOTHER AREA OF LOW PRESSURE APPROACHES THE REGION.
MID-LEVEL TROUGH WILL CONTINUE TO MOVE ACROSS THE CENTRAL U. WITH SOME RIDGING BUILDING OVER FLORIDA AND THE SOUTHEAST STATES. HIGH PRESSURE ALONG THE MID-ATLANTIC COAST WILL CONTINUE TO DRIFT EAST OUT INTO THE ATLANTIC OCEAN WITH THE LOW LEVEL FLOW SHIFTING FROM EASTERLY EARLY TONIGHT TO SOUTHERLY DURING THURSDAY. LOWS TONIGHT WILL REMAIN WELL ABOVE NORMAL WITH LOWS FROM THE LOWER 60S NORTH TO THE UPPER 60S TO NEAR 70 ALONG THE COAST FROM AROUND TAMPA BAY SOUTHWARD.
MODELS COMING IN WARMER IN THE MID 30S SO SNOWFALL AMOUNTS WERE DECREASED TO LESS THAN HALF AN INCH MANY AREAS. ONCE AGAIN IT APPEARS THE BEST POTENTIAL FOR ADVISORY CRITERIA WINDS WILL BE OVER THE HIGHER TERRAIN OF THE SOUTHWEST.
WITH ISOLD TSTMS POSSIBLE THIS AFTERNOON AS A WEAK DISTURBANCE IN CYCLONIC FLOW AROUND THE UPPER LOW MOVES ACROSS THE REGION. ENDING BY EARLY THU MORNING AS THE LOW PRESSURE SYSTEM MOVES EAST AND DRYER AIR FILTERS IN WITH THE NORTHERLY FLOW ALOFT. MOSTLY SUNNY AND COOL THROUGH THU IN NORTHERLY FLOW ALOFT AS THE UPPER LOW CONTINUES TO MOVE TO THE SOUTHEAST. EXPECT DAYTIME TEMPS IN THE 60S TO LOW 70S WEST OF THE MTNS AND IN THE HIGH DESERTS. AND THE LOW 80S IN THE LOWER DESERTS. CONTINUED DRY WITH A WARMING TREND THROUGH SUN AS A HIGH PRESSURE RIDGE BUILDS IN FROM THE WEST. DAYTIME TEMPS COULD REACH THE LOW TO MID 80S ON SUN IN THE INLAND VALLEYS.
A HIGH PRESSURE RIDGE WILL BUILD IN ACROSS THE WESTERN STATES THURSDAY NIGHT WITH A WARMING TREND THROUGH THE WEEKEND. A COLD UPPER LEVEL LOW WILL CONTINUE TO DRIFT THROUGH THE SOUTHWEST REGION. ANY SNOW AMOUNTS WILL REMAIN ON THE LIGHT SIDE WITH ONLY A FEW TENTHS OF AN INCH POSSIBLE IN THE HIGH COUNTRY.
A COLD CORE UPPER LOW IS CURRENTLY CENTERED ACROSS EASTERN DESERTS OF SOUTHERN CALIFORNIA THIS AFTERNOON. WEAK EMBEDDED SHORT WAVE ENERGY ON THE BACK SIDE OF THE UPPER LOW WILL ROTATE FROM NORTH TO SOUTH. THE UPPER LOW MOVES EASTWARD ON THURSDAY AND DRIER NORTHEAST FLOW ALOFT RETURNS ACROSS SOUTHWEST CALIFORNIA.
A cold front will push south across West Central Texas overnight, and this boundary may help initiate thunderstorms in that area. For tomorrow, Showers and thunderstorms will be well east of our area, and slightly cooler air will dominate West Central Texas. Winds will be from the northwest tomorrow, and afternoon highs will range from the lower 70s north to around 80, along our Interstate 10 corridor. After an upper trough moves east of Texas by this weekend, a broad ridge will dominate the Plains.
256 PM CDT WED MAR 30 2016 Latest water vapor imagery shows a sharp upper trough extending from the western Plains to southern California.
SHOWERS WILL DIMINISH ACROSS THE AREA TONIGHT AS LOW PRESSURE SLOWLY DEPARTS THE REGION. QUIET CONDITIONS AND WARMING TEMPERATURES WILL OCCUR THROUGH THE WEEKEND AS A RIDGE OF HIGH PRESSURE MOVES INTO THE DESERT SOUTHWEST.
WARM FRONT HAS SURGED NORTHWARD THROUGH THE DAY AND STALLED ROUGHLY ALONG A LINE FROM JUST NORTH OF WATERLOO WEST- SOUTHWEST THROUGH SOUTH OF DENISON. WEAK CONVERGENCE PRESENT ALONG THE COLD FRONT HAS ALREADY SPAWNED A FEW ELEVATED STORMS OVER CRAWFORD/CARROLL COUNTY AREA. ONCE THE COLD FRONT MOVES THROUGH LATE TONIGHT INTO THE OVERNIGHT HOURS.
/ISSUED 1011 AM EDT WED MAR 30 2016/ QUIET MORNING ACROSS THE REGION WITH SOME COOLER TEMPERATURES AND DRIER AIR THAN YESTERDAY.
109 PM MST WED MAR 30 2016 A LOW PRESSURE SYSTEM OVER THE WESTERN STATES WILL KEEP MUCH COOLER TEMPERATURES IN PLACE TODAY WITH HIGHS IN THE UPPER 60S TO LOW 70S ACROSS THE LOWER DESERTS.
THE UPPER LOW WAS OVER THE WESTERN PLAINS. THE COLD FRONT WILL NOT MOVE THROUGH AR UNTIL THURSDAY AFTERNOON. AND EVEN A LOWER CHANCE OF RAIN WILL BE HELD AFTER FRONT UNTIL THE DRIER AND COOLER AIR MASS FILTERS IN OVER THE REGION.
SOUTHERLY FLOW AND IN SOME CASES FAVORABLE DOWNSLOPE FLOW IS LEADING TO TEMPERATURES IN THE LOW TO MID 70S THIS AFTERNOON. THEN THERE IS THE PREVIOUSLY MENTIONED COLD FRONT AND ADDITIONAL PERTURBATIONS.
1233 PM CDT WED MAR 30 2016 A MID/UPPER TROUGH OVER THE CENTRAL GREAT BASIN AREA EARLY THIS MORNING IS PROGGED TO LIFT EAST/NORTHEAST ACROSS THE CENTRAL PLAINS STATES THROUGH TONIGHT. STORMS MAY LINGER THROUGH THE EVENING HOURS BEFORE THE FOCUS SHIFTS EAST OF THE AREA AFTER MIDNIGHT AS A COLD FRONT EVENTUALLY MOVES OVER THE AREA. A RETURN TO MORE SEASONABLE TEMPERATURES AND DRY WEATHER CONDITIONS IS ANTICIPATED ON THURSDAY IN THE WAKE OF THE COLD FRONT.
SW TO W SURFACE WINDS ARE EXPECTED TO INCREASE AND BECOME GUSTY THIS AFTERNOON AS THE PRESSURE GRADIENT TIGHTENS IN RESPONSE TO AN APPROACHING COLD FRONT FROM THE NORTH AND NORTHWEST. THIS COLD FRONT IS FORECAST TO MOVE SEWD ACROSS THE TAF SITES THIS EVENING WITH GUSTY NNW WINDS IN ITS WAKE. COLD FRONT ARRIVES AROUND 02Z TO 03Z THURSDAY. /ISSUED 257 AM CDT WED MAR 30 2016/ LARGE UPPER LEVEL TROUGH STRETCHES FROM THE GREAT BASIN INTO THE NORTHERN PLAINS THIS MORNING. THIS UPPER LEVEL TROUGH IS EXPECTED TO DRIFT SOUTHWARD. THE TROUGH WILL SHEAR OUT AS IT MAKES ITS TREK SOUTHWARD. A COLD FRONT WILL MOVE SOUTH ACROSS THE PANHANDLES TONIGHT AS THE ELONGATED UPPER LEVEL TROUGH MOVES SOUTH ACROSS THE SOUTHERN ROCKIES AND CENTRAL PLAINS.
458 PM MDT WED MAR 30 2016 PRECIPITATION HAS BEEN SLOWER TO MOVE INTO THE FORECAST AREA FROM THE NORTHER THIS AFTERNOON THAN PREVIOUSLY EXPECTED AS THE SHORT LEAD TROUGH IS EXPECTED TO MOVE ACROSS THE CENTRAL HIGH PLAINS REGION THIS EVENING. THE COLD FRONT EXPECTED TO MOVE ACROSS THE FORECAST AREA THIS EVENING IS CURRENTLY RIGHT ALONG THE NORTHERN BORDER OF THE FORECAST AREA. A LULL IN THE WINDS IS EXPECTED AS SUNRISE APPROACHES WITH A RETURN OF GUSTY NORTHWEST WINDS DURING THE DAY ON THURSDAY AS ANOTHER COOL SURGE MOVES IN AHEAD A SECOND SHORT WAVE TROUGH THAT ROTATES THROUGH THE NORTHERN HIGH PLAINS MOSTLY NORTH OF THE FORECAST AREA DURING THE DAY.
HIGH TEMPERATURES THURSDAY SHOULD RANGE FROM THE LOWER 40S HURON TO CHAMBERLAIN TO GREGORY.
VERY LIGHT ISOLATED SHOWERS WERE DETECTED BY THE LOCAL RADAR DEVELOPING OVER THE LOWER KEYS. TEMPERATURES HAVE REACHED SO FAR THE LOW 80S IN KEY WEST AND MID 80S IN MARATHON. A HIGH PRESSURE WILL REACH THE COASTAL WATERS OF THE MID-ATLANTIC THIS AFTERNOON AND DRIFT EASTWARD TOWARDS THE CENTRAL ATLANTIC BY TOMORROW. THE RIDGE EXTENDING TOWARDS NORTH FLORIDA WILL LIFT NORTH AND MOVES EAST AS WELL.
MOISTURE WILL BE INCREASING OVER THE FORECAST AREA OVERNIGHT AS THE BROAD UPPER TROUGH DEEPENS INTO THE CENTRAL STATES.
SOUTHERLY WINDS HAVE STRUGGLED WITH GUSTS MAINLY IN THE LOW 20 KT RANGE. IFR CIGS ARE CURRENTLY TIED TO THE LOW OVER THE PLAINS. MIXING PICKS UP QUICKLY THURSDAY AS THE LOW ENTERS THE REGION. BUT A NEW ROUND OF SHOWERS AND STORMS FORMS ALONG THE LOW/S COLD FRONT IN THE LATE MORNING/EARLY AFTN. JEE 303 PM CDT MAIN MARINE CONCERNS IN THE NEAR TERM IS WITH LOW PRESSURE OVER THE MID-MISSOURI VALLEY THIS AFTERNOON. AS THE LOW PASSES ACROSS THE CENTRAL PART OF THE LAKE MIDDAY THURSDAY.
341 PM CDT WED MAR 30 2016 AN UPPER TROUGH EMERGING INTO THE CENTRAL HIGH PLAINS THIS EVENING WILL WEAKEN AND TRANSLATE EAST TONIGHT AND THURSDAY WITH WINDS AND HEIGHT FIELDS RELAXING. WIND SPEEDS WILL MOSTLY BE NEAR OR JUST ON THE LOW END OF WIND ADVISORY LEVELS FOR MUCH OF THE AREA. COOLER AND DRY AIR WILL MOVE IN LATER TONIGHT AND EARLY THURSDAY. RMCQUEEN MUCH COOLER WEATHER AND A CHANCE OF PRECIPITATION WILL CLOSE OUT THE WEEK BEFORE WARMER AND DRIER CONDITIONS RETURN FOR THE REMAINDER OF THE EXTENDED.
413 PM EDT WED MAR 30 2016 HIGH PRESSURE IN THE ATLANTIC WILL CIRCULATE INCREASING MOISTURE INTO THE FORECAST AREA AHEAD OF A COLD FRONT SLOWLY APPROACHING FROM THE WEST.
WV LOOP SHOWS THE MAIN UPPER LOW STILL DOWN OVER SE WY/NE CO/NEB PANHANDLE AREA.
758 PM EDT WED MAR 30 2016 AVIATION A LOW PRESSURE SYSTEM DEVELOPING IN NEBRASKA WILL TRACK EAST TONIGHT REACHING MICHIGAN ON THURSDAY. THIS WILL DRAW DOWN A MUCH COOLER AIRMASS THAT WILL SETTLE IN THROUGH THE WEEKEND. AS THE COLD FRONT PASSES THROUGH DURING THE AFTERNOON.
652 PM CDT WED MAR 30 2016 FOR 00Z TAFS /ISSUED 415 PM CDT WED MAR 30 2016/ A 997 MB LOW PRESSURE CENTER CONTINUES TO DEEPEN SLIGHTLY OVER NORTHERN KANSAS AND SOUTHEASTERN NEBRASKA THIS AFTERNOON. EXTENDING SOUTHEAST FROM THIS LOW IS A DEVELOPING COLD FRONT WHICH EXTENDS INTO NORTHWESTERN TEXAS. AS DEWPOINTS ARE STILL IN THE LOWER TO MID 40S IN MANY LOCATIONS. THIS IS MAINLY DUE TO DRY AIR ADVECTING IN ON THE WESTERN EDGE OF A HIGH PRESSURE AREA CENTERED JUST EAST OF THE MID-ATLANTIC AREA OVER THE ATLANTIC. THE FLOW IS BEING PRIMED BY DEWPOINTS IN THE NORTHERN GULF OF MEXICO IN THE LOWER 70S. GUIDANCE CONTINUES TO SHOW A FAIRLY DECENT PRE-FRONTAL TROUGH AXIS DEVELOPING JUST AHEAD OF THE COLD FRONT.
BUT WILL KEEP AT LEAST LOW POPS FOR MOST AREAS THROUGH THE NIGHT AS THE DRYLINE/COLD FRONT HAS YET TO MOVE THROUGH.
CHATTANOOGA AIRPORT, TN 59 72 60 73 / 40 90 90 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 58 72 59 72 / 20 90 90 50 OAK RIDGE, TN 57 71 59 73 / 30 90 90 50 TRI CITIES AIRPORT, TN 52 70 57 71 / 10 90 90 60 TN.
1017 PM EDT WED MAR 30 2016 A WARM FRONT WILL LIFT ACROSS THE REGION OVERNIGHT INTO THURSDAY. LOW PRESSURE WILL TRACK NORTHWEST OF THE REGION LATER THURSDAY THROUGH THURSDAY NIGHT.
THE DRYLINE IS STALLING TO OUR WEST AND WILL LIKELY BE OVERTAKEN BY THE COLD FRONT LATE TONIGHT. SOUTH WINDS AROUND 15 KNOTS WILL PREVAIL TONIGHT AND WINDS WILL SHIFT TO THE NORTHWEST TOWARD 12Z AS A COLD FRONT MOVES THROUGH THE REGION. WINDS WILL SHIFT TO THE NORTHWEST AT WACO 13-15Z WITH THE PASSAGE OF THE COLD FRONT. THE LOW CEILINGS WILL MOVE OUT OF THE AREA WITH THE FRONTAL PASSAGE. WILL HAVE THE HIGHEST POPS SPREADING EAST INTO THE METROPLEX ALONG THE I-35 CORRIDOR AND NORTH TO THE RED RIVER THROUGH EARLY EVENING WITH A PROGRESSION RATHER QUICKLY INTO THE ARKLATEX BY MIDNIGHT. AS THE MAIN TROUGH REMAINS TO THE WEST. THE COLD FRONT MOVES THROUGH NORTH TEXAS USHERING IN SOME DRIER AIR AND CLEARING SKIES.
UPPER LOW IS ACROSS THE NEB PANHANDLE MOVING ENE WHILE A SECOND STRONG WAVE IS CROSSING WRN SASK DIVING SOUTHWARD. THE COMPACT UPPER WAVE WILL CROSS THE WRN/CNTRL DAKOTAS TONIGHT BRINGING A COLD FRONT ACROSS THE REGION ALONG WITH GUSTY N/NW WINDS. THE HIGHEST WINDS WILL BE ALONG THE WRN SD PLAIN ADJACENT TO THE ERN BLKHLS INCLUDING THE RAPID CITY AREA WHERE FORECAST SOUNDINGS SUGGEST WINDS REACHING 35-45 WITH GUSTS UP TO 60 MPH.
917 PM EDT WED MAR 30 2016 UPDATE A LOW PRESSURE SYSTEM DEVELOPING IN NEBRASKA WILL TRACK EAST TONIGHT REACHING MICHIGAN ON THURSDAY. THIS WILL DRAW DOWN A MUCH COOLER AIRMASS THAT WILL SETTLE IN THROUGH THE WEEKEND. AS THE COLD FRONT PASSES THROUGH DURING THE AFTERNOON.
WINDS TOMORROW WILL DECREASE DURING THE MORNING AS A TROUGH MOVES INTO THE WESTERN VALLEY. MID-LEVEL WINDS BECOME SOUTHWESTERLY AS A 500-MB TROF DROPS INTO SONORA STATE IN MEXICO.
1157 PM CDT WED MAR 30 2016 A 996 mb low pressure center over SW corner of Iowa this evening will continue to deepen and move northeastward through southern Wisconsin overnight, with a rich plume of moist air ahead of the low providing for continued showers much of the night over central IL. Instability has diminished over central IL to the point where no thunderstorms currently active over the area, however as the low moves northeastward better instability is progged to again cross over central IL overnight leading to a return of thunderstorms. Latest water vapor imagery shows a sharp upper trough extending from the western Plains to southern California.
HIGH PRESSURE OFF THE MID ATLANTIC COAST RIDGES WEST SOUTHWEST OVER THE FLORIDA PENINSULA AND WILL CONTINUE TO PRODUCE EAST TO SOUTHEAST WINDS OVERNIGHT AND INTO THURSDAY.
1122 PM CDT WED MAR 30 2016 WINDS MAY BECOME BREEZY EARLY THURSDAY MORNING ESPECIALLY AT KCDS IN THE WAKE OF A WEAK COLD FRONT MOVING THROUGH THE REGION. A STRONGER COLD FRONT WILL BEGIN TO MAKE ITS WAY THROUGH NEAR THE END OF THIS TAF PERIOD. /ISSUED 341 PM CDT WED MAR 30 2016/ AN UPPER TROUGH EMERGING INTO THE CENTRAL HIGH PLAINS THIS EVENING WILL WEAKEN AND TRANSLATE EAST TONIGHT AND THURSDAY WITH WINDS AND HEIGHT FIELDS RELAXING. WIND SPEEDS WILL MOSTLY BE NEAR OR JUST ON THE LOW END OF WIND ADVISORY LEVELS FOR MUCH OF THE AREA. COOLER AND DRY AIR WILL MOVE IN LATER TONIGHT AND EARLY THURSDAY. RMCQUEEN MUCH COOLER WEATHER AND A CHANCE OF PRECIPITATION WILL CLOSE OUT THE WEEK BEFORE WARMER AND DRIER CONDITIONS RETURN FOR THE REMAINDER OF THE EXTENDED.
844 PM EDT WED MAR 30 2016 A INVERTED TROUGH HAS SET UP ALONG THE EAST COAST METRO AREAS EARLY THIS EVENING. THE INVERTED TROUGH WILL REMAIN IN PLACE ALONG THE COASTAL AREAS OF THE EAST COAST OF SOUTH FLORIDA TONIGHT.
WARM FRONT HAS SURGED NORTHWARD THROUGH THE DAY AND STALLED ROUGHLY ALONG A LINE FROM JUST NORTH OF WATERLOO WEST-SOUTHWEST THROUGH SOUTH OF DENISON. WEAK CONVERGENCE PRESENT ALONG THE COLD FRONT HAS ALREADY SPAWNED A FEW ELEVATED STORMS OVER CRAWFORD/CARROLL COUNTY AREA. ONCE THE COLD FRONT MOVES THROUGH LATE TONIGHT INTO THE OVERNIGHT HOURS.
1049 PM MDT WED MAR 30 2016 PRECIPITATION HAS BEEN SLOWER TO MOVE INTO THE FORECAST AREA FROM THE NORTHER THIS AFTERNOON THAN PREVIOUSLY EXPECTED AS THE SHORT LEAD TROUGH IS EXPECTED TO MOVE ACROSS THE CENTRAL HIGH PLAINS REGION THIS EVENING. THE COLD FRONT EXPECTED TO MOVE ACROSS THE FORECAST AREA THIS EVENING IS CURRENTLY RIGHT ALONG THE NORTHERN BORDER OF THE FORECAST AREA. A LULL IN THE WINDS IS EXPECTED AS SUNRISE APPROACHES WITH A RETURN OF GUSTY NORTHWEST WINDS DURING THE DAY ON THURSDAY AS ANOTHER COOL SURGE MOVES IN AHEAD A SECOND SHORT WAVE TROUGH THAT ROTATES THROUGH THE NORTHERN HIGH PLAINS MOSTLY NORTH OF THE FORECAST AREA DURING THE DAY.
A LOW PRESSURE DISTURBANCE WILL CONTINUE TO MOVE EAST OF THE REGION.
MODERATE ONSHORE FLOW BECOMES MORE SSE/S AS HIGH PRESSURE CONTINUES TO MOVE DEEPER INTO THE WESTERN ATLC. EAST FLOW BECOMING ESE TO SE BY DAYBREAK AS HIGH PRESSURE NEAR THE MID ATLC COAST DRIFTS SEAWARD INTO THE WESTERN ATLC.
COOLER/DRIER AIR/MORE SEASONAL AIR WILL PUSH INTO THE REGION BEHIND THE COLD FRONT OVERNIGHT THROUGH THURSDAY. THE LONGWAVE TROUGH WILL SHIFT EAST OF THE AREA THIS WEEKEND.
/issued 228 PM CDT WED MAR 30 2016/ Breezy west winds will continue to increase this afternoon as strong upper winds (60-65kt 500mb jet), associated with an elongated upper trough to the west, mix down to the surface through peak heating today. The main upper trough to the west will begin to shift east on Thursday while a weak front moves through. Slightly cooler temps can be expected as a result.
815 PM EDT WED MAR 30 2016 A WARM FRONT WILL LIFT ACROSS THE REGION OVERNIGHT INTO THURSDAY. LOW PRESSURE WILL TRACK NORTHWEST OF THE REGION LATER THURSDAY THROUGH THURSDAY NIGHT.
811 PM EDT WED MAR 30 2016 HIGH PRESSURE IN THE ATLANTIC WILL CIRCULATE INCREASING MOISTURE INTO THE FORECAST AREA AHEAD OF A COLD FRONT SLOWLY APPROACHING FROM THE WEST.
1108 PM CDT WED MAR 30 2016 /06Z TAFS/ Areas of stratus will be possible at the southern 3 sites ahead of an approaching Pacific cold front early Thursday morning. A cold front will push south across West Central Texas overnight, and this boundary may help initiate thunderstorms in that area. For tomorrow, Showers and thunderstorms will be well east of our area, and slightly cooler air will dominate West Central Texas. Winds will be from the northwest tomorrow, and afternoon highs will range from the lower 70s north to around 80, along our Interstate 10 corridor. (Thursday night through Wednesday) After an upper trough moves east of Texas by this weekend, a broad ridge will dominate the Plains.
838 PM PDT WED MAR 30 2016 LOW PRESSURE WILL EXIT THE AREA OVERNIGHT TO BRING CLEARING SKIES.
A DRYLINE REMAINS NEAR THE NORTHERN I35 CORRIDOR AND SOUTHERN I44 CORRIDOR THIS EVENING, WITH A COLD FRONT NOW ENTERING NORTHWESTERN, WESTERN, AND SOUTHWESTERN OK.
/ISSUED 350 PM CDT WED MAR 30 2016/ MID-AFTERNOON SFC ANALYSIS SHOWS THE WARM FRONT HAS WASHED OUT TO OUR NORTH WITH UPPER 60S/LOWER 70S DEWPOINTS ACROSS THE ENTIRE FORECAST AREA. A COLD FRONT IS NOTED TO OUR WEST. EXTENDING FROM LOW PRESSURE OVER THE SRN PLAINS TO ANOTHER LOW OVER WRN TX. MEANWHILE ANOTHER LOW DEEPENING OVER SRN TX AND ITS GRADIENT WITH PERSISTENT HIGH PRESSURE OFF THE CAROLINAS HAS FINALLY ALLOWED ELEVATED SRLY WINDS TO DEVELOP ACROSS PORTIONS OF THE AREA. WATER VAPOR IMAGERY SHOWS A DEEP MID/UPPER-LEVEL TROF OVER THE WRN CONUS WITH AN EMBEDDED LOW SPINNING ACROSS THE ROCKIES AND A WEAK DISTURBANCE CROSSING ERN TX.