Aikyam-Lab/Synoptic-Bench huggingface dataset:
ALREADY GETTING FREEZING RAIN AND SLEET OVER MUCH OF SOUTHEAST MISSOURI THIS MORNING. SO TRIED TO PUSH SLEET AND FREEZING RAIN NORTHEAST ACROSS THE AREA A BIT FASTER THROUGH THE AFTERNOON. IT APPEARS THE WINDOW OF OPPORTUNITY FOR FREEZING RAIN. A FEW HOURS OF FREEZING RAIN IS FORECAST IN THE EVENING ONLY. AS A VIGOROUS LOW PRESSURE SYSTEM PASSES THROUGH THE REGION ON SAT. WITH A POSSIBLE WINTRY MIX FOR WRN KY LATE BEFORE DAYBREAK AS TEMPS CRASH AGAIN BELOW FREEZING. PERSISTENT RIDGE OVER THE PACIFIC OFF THE WEST COAST AND LOW CENTERS FROM GREENLAND TO HUDSON BAY WILL KEEP BROAD TROF AND LOW HEIGHTS ACROSS MUCH OF THE NATION ESPECIALLY EAST OF THE ROCKIES.
1232 PM CST FRI FEB 20 2015 ISSUED AT 1225 PM CST FRI FEB 20 2015 PRECIPITATION WITH ADVANCING COLD FRONT CONTINUES TO SAG SOUTHWARD THROUGH THE CWA. COLD FRONT CONTINUES TO SLIDE SOUTH THROUGH CENTRAL NORTH DAKOTA WITH LIGHT SNOW CONTINUING ACROSS NORTHERN PORTIONS OF THE AREA.
1026 AM PST FRI FEB 20 2015 LOW PRESSURE WILL DEVELOP OVER CENTRAL CALIFORNIA THIS WEEKEND.
The south- southwest winds will continue into tonight, ahead of an approaching cold front. The cold front will push south into the Big Country after Midnight, reaching Abilene 4-5 AM and San Angelo by 7 AM Saturday. Temperatures will be cooler on Saturday, with afternoon highs expected to range from near 60 in our far northern counties to the mid 70s along the I-10 corridor.
TODAY THROUGH SATURDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS WARM FRONT JUST EAST OF THE CWA. WITH LOW PRESSURE OVER SOUTHEAST SK. ANOTHER ARCTIC FRONT EXTENDS NORTH AND WEST OF THE LOW ACROSS SOUTHWEST CANADA.
NORTHERN BAYS SHOULD STILL SEE LOWER WINDS SPEEDS DUE TO THE COOLER WATER BUT SCEC CONDITIONS WILL EXIST THERE.
THIS EVENING THROUGH SATURDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER NORTHEASTERN SOUTH DAKOTA WITH A COLD FRONT EXTENDING THROUGH NORTHERN SOUTH DAKOTA. ARCTIC AIR PUSHES INTO THE FORECAST AREA TONIGHT AS THE COLD FRONT SLIDES SOUTH.
THE COLD FRONT WILL EXIT EASTERN WISCONSIN SATURDAY MORNING BUT LAKE INDUCED THERMAL TROUGHING SEEMS TO PRODUCE WEAK CYCLONIC FLOW OVER EAST CENTRAL WISCONSIN WITH SOME POTENTIAL FOR LIGHT LAKE ENHANCED SNOW.
THE 16Z SURFACE OBSERVATIONS ACROSS THE FORECAST AREA INDICATED THAT TEMPS WERE SLOWLY WARMING TO THE LOW TO MID 20S IN NORTH ALABAMA AND INTO THE UPPER TEENS/AROUND 20 IN SOUTHERN MIDDLE TENNESSEE. 12Z AREA SOUNDINGS/FORECAST SOUNDINGS AND HRRR/RAP SHORT TERM MODELS INDICATED THAT IT MAY STILL TAKE UNTIL SHORTLY AFTER 18Z BEFORE THE LOWER LAYERS BELOW 850 MILLIBARS BECOMES SATURATED ENOUGH FOR MORE WIDESPREAD PRECIP. THE CURRENT TRENDING/TIMING OF THE SNOW BECOMING MIXED WITH SLEET/FREEZING RAIN FOR THE FORECAST AREA STILL LOOKS TO BE IN GOOD SHAPE AND WILL NOT ADJUST AT THIS TIME. PRECPITATION WILL BECOME MORE SPOTTY LATER TONIGHT AND AS SFC TEMPERATURES SLOWLY WARM ABOVE FREEZING.
A COLD FRONT WILL MOVE THROUGH TONIGHT AND INCREASE NORTHEASTERLY WINDS EARLY SATURDAY MORNING TO 10 TO 20 KTS WITH GUSTS NEAR 30KTS. THEN A STRONG COLD FRONT WILL MOVE THROUGH THE PANHANDLES TONIGHT WITH A RE-REINFORCING SHOT SATURDAY NIGHT.
457 PM EST FRI FEB 20 2015 LOW PRESSURE DEVELOPING IN THE MISSISSIPPI VALLEY WILL TAKE A TRACK TO THE NORTH OF PENNSYLVANIA THIS WEEKEND.
228 PM EST FRI FEB 20 2015 HIGH PRESSURE WILL MOVE OFF THE CAROLINA COAST TONIGHT. A WEAK WARM FRONT WILL DEVELOP AND REMAIN NEAR THE FORECAST AREA THROUGH SATURDAY.
ANB THIS AFTERNOON AS SCATTERED SHOWERS PRODUCE A MIX OF FREEZING RAIN AND SLEET. SURFACE WINDS ARE GENERALLY OUT OF THE EAST ADVECTING IN COOLER AND DRIER AIR AT THE SURFACE. THE 18Z BMX SOUNDING INDICATES DRY AIR IN THE LOWEST 150 MB OF THE ATMOSPHERE WITH A SHALLOW SATURATED LAYER ABOVE THIS. THERE IS A WARM NOSE AROUND 800 MB WHERE THE TEMPERATURE GOES JUST ABOVE THE FREEZING MARK BUT FOR THE MOST PART THE SOUNDING IS BELOW FREEZING. THE HRRR SEEMS TO HAVE A DECENT HANDLE ON THE CURRENT RADAR TRENDS BUT DUE TO THE DRY AIR IN THE LOW LEVELS. IT WILL TAKE QUITE SOMETIME FOR TEMPERATURES TO WARM ABOVE FREEZING. WINDS ACROSS THE NORTHEAST WILL REMAIN INFLUENCED BY THE WEDGE OVERNIGHT AND WILL REMAIN RIGHT AROUND FREEZING.
1137 AM CST FRI FEB 20 2015 FOR 18Z TAFS /ISSUED 1019 AM CST FRI FEB 20 2015/ THE 16Z SURFACE OBSERVATIONS ACROSS THE FORECAST AREA INDICATED THAT TEMPS WERE SLOWLY WARMING TO THE LOW TO MID 20S IN NORTH ALABAMA AND INTO THE UPPER TEENS/AROUND 20 IN SOUTHERN MIDDLE TENNESSEE. 12Z AREA SOUNDINGS/FORECAST SOUNDINGS AND HRRR/RAP SHORT TERM MODELS INDICATED THAT IT MAY STILL TAKE UNTIL SHORTLY AFTER 18Z BEFORE THE LOWER LAYERS BELOW 850 MILLIBARS BECOMES SATURATED ENOUGH FOR MORE WIDESPREAD PRECIP. THE CURRENT TRENDING/TIMING OF THE SNOW BECOMING MIXED WITH SLEET/FREEZING RAIN FOR THE FORECAST AREA STILL LOOKS TO BE IN GOOD SHAPE AND WILL NOT ADJUST AT THIS TIME.
IN WHAT SEEMS LIKE A NEVER ENDING SERIES OF ARCTIC COLD FRONTS. THIS HIGH WILL BE APPROACHING FAIRLY QUICKLY.
LOW LEVEL LAPSE RATES STEEPEN ACROSS THE AREA ON SATURDAY AND A COLD FRONT SWEEPS THROUGH THE REGION.
A NICE BAND OF SLEET AND FREEZING RAIN HAS DEVELOPED OVER SOUTHEAST MISSOURI INTO THE PURCHASE AREA. THE MODELS ARE STILL MOSTLY WARMING THE ENTIRE AREA ABOVE FREEZING.
925 AM PST FRI FEB 20 2015 LOW PRESSURE WILL DEVELOP OVER CENTRAL CALIFORNIA THIS WEEKEND.
1051 AM CST FRI FEB 20 2015 WARM FRONT CONTINUES TO MOVE NORTH THROUGH NORTH TEXAS THIS MORNING WITH MOISTURE AND LOW CLOUDS SURGING NORTHWARD.
HIGH PRESSURE OVER ARIZONA WILL BEGIN TO WEAKEN TODAY AS A SERIES OF LOW PRESSURE SYSTEMS MOVE SOUTH OUT OF CANADA.
409 PM EST FRI FEB 20 2015 WARMER AIR WILL BE COMING INTO THE REGION AS THE AREA OF HIGH PRESSURE EXITS. SNOW RETURNS TONIGHT INTO TOMORROW AS A LOW PRESSURE SYSTEM MOVES ACROSS THE OHIO VALLEY. HIGH TEMPERATURES TODAY WILL RANGE FROM THE TEENS IN SOUTHERN MICHIGAN TO THE LOWER 20S ALONG THE OHIO RIVER. LOWS TONIGHT WILL RANGE FROM THE LOWER TEENS IN SOUTHERN MICHIGAN TO THE LOWER 20S ALONG THE OHIO RIVER.
1241 PM EST FRI FEB 20 2015 A COLD PRESSURE RIDGE WILL EXTEND THROUGH THE FORECAST AREA TODAY.
133 PM PST FRI FEB 20 2015 COOLER. AS AN UPPER LEVEL TROUGH STALLS TO OUR NORTH BY THE END OF THE WEEKEND.
SNOW WILL CHANGE TO FREEZING RAIN AND SLEET EARLY THIS EVENING AT CLARKSVILLE AND NASHVILLE AND CONTINUE PAST MIDNIGHT. AT CROSSVILLE LOOK FOR FREEZING RAIN TO BEGIN MID TO LATE EVENING BUT IT COULD HOLD OFF CLOSER TO MIDNIGHT. PRECIP SHOULD CHANGE TO RAIN AT CLARKSVILLE AND NASHVILLE BY 4 AM TO 6 AM CST TIME FRAME WITH FREEZING RAIN CONTINUING AT CROSSVILLE WELL INTO SATURDAY MORNING.
/ISSUED 1010 AM EST FRI FEB 20 2015/ TEMPERATURES RECOVERING ACROSS THE AREA THIS MORNING AFTER A COLD MORNING WITH FREEZING TEMPERATURES AND FROST OVER MOST OF THE INTERIOR. FORECAST FOR TODAY LOOKS ON TRACK WITH HIGHS IN THE LOWER/MID 60S AS NE WINDS BRING SOME MILDER AIR BACK IN. TEMPERATURES TONIGHT WILL BE SIGNIFICANTLY WARMER THAN THIS MORNING WITH MOST AREAS IN THE 40S/50S AS OPPOSED TO 30S/LOWER 40S. HAVE ADJUSTED ACCORDINGLY, BUT WE STILL EXPECT MANY LOCALES OVER THE INTERIOR TO HIT FREEZING. IN FACT, A FEW MESONET SITES HAVE JUST HIT THE FREEZING MARK. SEVERAL OTHER INTERIOR SITES LIE JUST ABOVE FREEZING AND A FURTHER FALL IN TEMPS IS EXPECTED. THE DEEP TROUGH OVER THE SOUTHEAST WILL GRADUALLY LIFT AND SOUTH FL WILL BE IN ZONAL FLOW.
311 PM CST FRI FEB 20 2015 CURRENT SURFACE ANALYSIS PLACES LOW OVER NORTHERN MINNESOTA WITH COLD FRONT SHIFTING THROUGH NORTHERN SOUTH DAKOTA BRINGING STEADY TO SLOWLY FALLING TEMPERATURES TO OUR AREA. UPPER LEVEL ANALYSIS PLACES LOW OVER HUDSON BAY WITH RIDGE OFF THE WEST COAST BRINGING CYCLONIC NORTHWESTERLY FLOW TO OUR AREA.
WE HAVE A SHOT AT BEING NEAR NORMAL TODAY AHEAD OF ANOTHER SHOT OF COLD AIR IN ASSOCIATION WITH THE APPROACHING TROUGH. COLD ADVECTION PUSHES INTO THE AREA FROM THE NORTH BEHIND A COLD FRONT ON SATURDAY.
WITH TEMPERATURES HOVERING NEAR FREEZING AND ONLY A BRIEF TRANSITION TO A WINTRY MIX ANTICIPATED.
TEMPERATURES WILL BE ABOUT 9 DEGREES COOLER FROM YESTERDAY BUT STILL ABOUT 5 DEGREES ABOVE NORMAL.
CURRENT TEMPERATURES IN THE CWA RANGED FROM THE TEENS IN NW IL TO THE LOWER 30S IN OUR FAR SOUTH. TEMPERATURES WILL BE A BIT MILDER AHEAD OF A COLD FRONT THAT WILL BE PUSHING SOUTHEAST ACROSS THE CWA. HIGHS SHOULD RANGE FROM THE MID 20S FAR NW TO THE LOWER 30S SE. ARCTIC HIGH PRESSURE AND UPPER RIDGE SUPPORTS ANY PRECIPITATION SHOULD BE SPOTTY AND VERY LIGHT TO TRACE AMOUNTS OF SNOW THROUGH PERIOD. DESPITE OUR BELOW FREEZING TEMPERATURES THAT SNOW COVER SHOULD SUBLIMATE.
TEMPERATURES WILL CONTINUE TO FALL WITH THE NORTHERLY FLOW BEHIND THE FRONT AS THE RIDGE BUILDS. THE LOWEST CEILINGS WILL FALL IN THE MVFR RANGE.
1138 PM EST THU MAR 5 2015 CANADIAN HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY.
150 AM EST FRI MAR 6 2015 A COLD PRESSURE RIDGE WILL BE CENTERED NORTH OF THE FORECAST AREA TODAY.
TEMPERATURES WILL CONTINUE TO FALL WITH THE NORTHERLY FLOW BEHIND THE FRONT AS THE RIDGE BUILDS. OVERALL THE PRECIPITATION IS NOW WORKING INTO AN AIR MASS THAT IS NOW ABOVE FREEZING AND WILL CONTINUE TO MOVE SOUTH AND EAST. THERE WILL BE LIKELY RE-FREEZING LATER THIS EVENING.
321 AM CST FRI MAR 6 2015 A THERMAL RIDGE WILL CONTINUE TO MOVE OFF THE NRN/CNTL ROCKIES AND INTO WRN AND NCNTL NEB TODAY. THE RAP SUGGESTED HIGHS IN THE UPPER 50S TO LOWER 60S AND THE FORECAST IS SLIGHTLY COOLER THAN THIS MODEL. A WEAK COLD FRONT WILL BE DROPPING THROUGH ERN SD LATE TONIGHT. THE MODELS SHOW AN INCREASE IN WIND SPEED AHEAD OF THIS FRONT AND THE COMBINATION OF THE APPROACHING COLD FRONT AND INCREASING WINDS SHOULD KEEP LOWS IN THE 20S TO AROUND 30. THE THERMAL RIDGE WILL REMAIN IN PLACE AHEAD OF THE COLD FRONT. RIDGE ACROSS THE WEST.
ALTHOUGH SOME SLIGHTLY ELEVATED SW WINDS ACROSS THE WEST AND NW MAY KEEP THEM A BIT WARMER THAN THE COOLEST LAMP GUIDANCE SUGGESTS. A MID TO UPPER TROUGH.
403 AM EST FRI MAR 6 2015 A RIDGE OF HIGH PRESSURE WILL DEPART TO THE EAST TODAY ALLOWING FOR STRENGTHENING SOUTHERLY WINDS.
1154 PM CST THU MAR 5 2015 A COLD NIGHT IN STORE FOR THE TAF SITES AS TEMPERATURES WILL FALL INTO THE LOW TO MID 20S ACROSS THE REGION. AND THIS REGION SHOULD BE COLDEST TONIGHT AS WINDS DECOUPLE ONCE ARCTIC SFC RIDGING SETTLES SWD INTO THE SRN PLAINS AND MID MS VALLEY. AND JUST OUT OF HARD FREEZING WARNING CRITERIA. WITH THE REMAINDER OF THE AREA FALLING INTO THE LOWER/MID 20S. TEMPS SHOULD QUICKLY FALL BELOW FREEZING OVER MUCH OF THE AREA BY MID-EVENING. A GRADUAL WARMING TREND WILL COMMENCE FRIDAY AND CONTINUE THROUGH AT LEAST THE FIRST HALF OF THE WEEKEND AS SFC RIDGING WILL REMAIN ANCHORED OVER THE REGION.
338 AM CST Fri Mar 6 2015 A longer wave length upper level trough continued across the east central conus. Today, westerly downslope winds across the central high plains will cause warmer air at the surface and 850mb to advect east and northeast across the state of KS. Slightly deeper mixing and warmer temperatures at the 925-900mb level across the southwest counties of the CWA will allow highs to reach the lower 60s. The mixed boundary layer will probably only reach to a depth of 940mb across the far eastern counties, where highs will only reach the lower 50s. Overnight lows will only drop down into the lower 30s as winds remain from the southwest at 5 to 15 MPH.
CONTINUED WARM AIR ADVECTION TODAY WILL LEAD TO INCREASING SOUTHWEST TO WESTERLY WINDS FOLLOWED BY BRISK NORTHWEST WINDS BEHIND A COLD FRONT FRIDAY NIGHT.
1100 PM CST THU MAR 5 2015 RIDGE OF HIGH PRESSURE DEAD OVERHEAD THIS AFTERNOON WITH CLEAR SKIES AND VERY CHILLY TEMPERATURES IN THE UPPER SINGLE DIGITS AND LOWER TEENS ABOVE ZERO. THE RIDGE OF HIGH PRESSURE WILL SHIFT EAST OF THE AREA AS A WARM FRONT APPROACHES FROM THE NORTHERN PLAINS. WARM FRONT MAKES PASSAGE THROUGH THE AREA ON FRIDAY WITH 925MB TEMPERATURES INCREASING SOME 10C FROM THURSDAY INTO THE -8 TO -2C RANGE. NORTHWEST FLOW ALOFT BRINGS A WAVE OF LOW PRESSURE ACROSS SOUTHERN CANADA/LAKE SUPERIOR.
A ridge of high pressure will pull away from the area today. The surface pressure gradient will become much stronger as the ridge departs, allowing gusty southerly winds to develop. These southerly winds will begin to transport much warmer temperatures into the area, a welcome trend that will persist for at least the next several days.
HIGH PRESSURE CURRENTLY CENTERED OVER SE IOWA WILL CONTINUE TO SLIDE SOUTHEAST AWAY FROM THE STATE TONIGHT. GOOD WARM ADVECTION AT 925 MB TONIGHT WILL HAVE THE 925 MB TEMPERATURES 20C WARMER THAN THIS MORNING.
HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN THROUGH THE WEEKEND.
Large area of high pressure at the surface continues to invade the Midwest. As the high shifts to the south and east, southerly winds will pick up across western and northwestern areas and temperatures will level off/slowly rise overnight.
/ISSUED 246 PM CST THU MAR 5 2015/ ARCTIC HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE MIDSOUTH OVER THE NEXT SEVERAL DAYS.
1237 AM EST FRI MAR 6 2015 A STRONG RIDGE OF HIGH PRESSURE WILL MOVE ACROSS THE NORTH COUNTRY OVERNIGHT.
1222 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD IN THROUGH FRIDAY.
341 AM CST Fri Mar 6 2015 (Today and Tonight) Quiet weather for the short term forecast, with warmer conditions this afternoon. This allows light southerly flow to return and bring a slightly warmer air mass into West Central Texas. Thus, will stay on the cooler side of guidance for most areas.
WARMER AND MORE ACTIVE WEATHER IS IN THE FORECAST FOR THE SHORT TERM.
918 PM PST THU MAR 5 2015 Mild high pressure will build over the Inland Northwest the next few days bringing a prolonged period of dry and warmer weather.
441 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL SLIDE SOUTH OF THE AREA TODAY AND TONIGHT.
404 AM EST FRI MAR 6 2015 HIGH PRESSURE WITH DRY AND COLD WEATHER WILL REMAIN INTO TONIGHT.
A WARM FRONT STRETCHED FROM THE TURTLE MOUNTAINS THROUGH CENTRAL AND SOUTHWEST NORTH DAKOTA WITH PRESSURE FALLS OCCURRING ALONG AND EAST OF THE BOUNDARY. HIGH CLOUDS CONTINUE TO STREAM OVER UPPER RIDGE BRINGING INCREASED CLOUD COVER MAINLY TO WESTERN PARTS OF THE AREA. A DRY WARM FRONT WILL CONTINUE TO PIVOT EAST ACROSS CENTRAL NORTH DAKOTA THIS AFTERNOON. WEAK WARM AIR ADVECTION WILL CONTINUE THROUGH FRIDAY LEADING TO WARMER FORECAST HIGHS THAN WHAT WAS OBSERVED TODAY.
STRONG HIGH PRESSURE ACROSS OUR REGION WILL MOVE TO THE MID ATLANTIC STATES AND SOUTHEAST U. A WEATHER PATTERN CHANGE WILL FINALLY TAKE PLACE AS THE STRONG UPPER TROUGH ACROSS GREAT LAKES AND EASTERN U. MODELS INDICATE THE UPPER RIDGE OVER THE WESTERN U. ISSUED AT 345 A EST FRI MAR 6 2015 HIGH PRESSURE ACROSS OUR REGION WILL MOVE WILL MOVE TO THE SOUTHEAST U. AND MID ATLANTIC STATES LATER TODAY AND WARM ADVECTION ON THE BACK SIDE OF THIS HIGH WILL ALLOW TEMPERATURES TO MODERATE SOME LATER TODAY.
213 AM CST FRI MAR 6 2015 PATCHY MIST/FREEZING FOG MAY OCCUR EARLY THIS MORNING.
1214 AM CST FRI MAR 6 2015 ARCTIC HIGH PRESSURE OVER THE REGION TODAY PROVIDING SUNNY SKIES BUT COLD TEMPERATURES. WARM AIR ADVECTION DEVELOPS LATER TONIGHT AS WINDS TURN SOUTHERLY ON THE BACK SIDE OF THE DEPARTING HIGH PRESSURE RIDGE. A BAND OF MID LEVEL CLOUDS SHOULD ALSO MOVE ACROSS THE CWA LATER TONIGHT IN ASSOCIATION WITH AN UPPER LEVEL TROUGH. PARTLY CLOUDY SKIES AND SOUTH TO SOUTHWEST WINDS WILL BRING WARMER TEMPERATURES INTO THE CWA. TO THE LOWER 40S IN OUR FAR SOUTHWEST COUNTIES. MODELS CONTINUE TO DIVERGE INTO SEPARATE CAMPS WITH REGARD TO THE AMOUNT OF SURFACE WARMING EARLY IN THE WEEK AND THEN EVEN MORE SO LATE IN THE WEEK WITH LARGE DIFFERENCES IN THE SOUTHWARD PENETRATION OF A STRONG COLD FRONT.
TODAY AND TONIGHT HIGH PRESSURE DRAPED ACROSS THE SOUTHEAST UNITED STATES COUPLED WITH LOW AMPLITUDE NORTHWEST FLOW ALOFT WILL FACILITATE PERSISTENCE OF DRY CONDITIONS THROUGH THE FORECAST PERIOD AND A CONTINUATION OF SOUTHWEST GRADIENT FLOW. ONGOING LIGHT WARM ADVECTION WILL WARM 925MB TEMPERATURES BY 10 OR MORE DEGREES OVER THE NEXT 24 HOURS, ENSURING HIGH TEMPERATURES IN THE MID 20S, OR ABOUT 5 TO 10 DEGREES WARMER THAN YESTERDAY.
Highs will range from the lower 50s northeast zones to upper 50s to around 60 degrees for most Florida zones.
COLD AND DRY HIGH PRESSURE NOW IN CONTROL. WITH SEVERAL OBS ACROSS CENTRAL LOUISIANA ALREADY AT OR BELOW FREEZING. SW TO NE ORIENTED HIGH PRESSURE IS EXPECTED TO REMAIN CENTERED TO OUR NW. THOUGH THE END TIME WAS EXTENDED ANOTHER HOUR SIMPLY TO MATCH THE EXPECTED RISE ABOVE FREEZING TOMORROW. WINDS WILL REMAIN MODERATELY STRONG AND SOMEWHAT GUSTY WITH COLD AND DRY HIGH PRESSURE RIDGING FROM THE GREAT LAKES INTO THE SOUTH PLAINS. /ISSUED 246 PM CST THU MAR 5 2015/ COLD FRONT THIS MORNING BROUGHT REPORTS OF SNOW IN CENTRAL LOUISIANA AND SLEET AND FREEZING RAIN AS FAR SOUTH AS THE I-10 CORRIDOR. TEMPERATURES HAVE STRUGGLED TO CLIMB INTO THE UPPER 30S TO LOWER 40S THIS AFTERNOON WHILE LFT HAS CONTINUE TO FALL TO AROUND FREEZING AT THIS TIME. FREEZING TEMPS AS FAR SOUTH AS THE COAST.
1249 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD INTO THE AREA OVERNIGHT AND LAST THROUGH FRIDAY NIGHT WITH DRY BUT COLD WEATHER.
317 AM EST FRI MAR 6 2015 YESTERDAYS COLD FRONT IS CURRENTLY ACROSS CENTRAL FLORIDA.
300 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD SOUTH OF NEW ENGLAND TODAY.
1011 PM MST THU MAR 5 2015 THE NORTHWEST FLOW ALOFT WILL WEAKEN EARLY FRIDAY AS THE HIGH PRESSURE RIDGE CENTERED OVER THE WEST COAST EXPANDS EASTWARD ACROSS THE GREAT BASIN. A COUPLE OF WEAK DISTURBANCES WILL DROP INTO THE NORTHERN PLAINS AROUND A LOW PRESSURE TROUGH POSITIONED OVER THE EASTERN PORTION OF THE CONUS. OTHERWISE THE WARMING TREND WILL PICK UP STEAM ON FRIDAY UNDER MOSTLY SUNNY SKIES AND AS WARMER CONDITIONS SPREAD IN FROM THE WEST.
404 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD IN THROUGH FRIDAY.
338 AM CST FRI MAR 6 2015 NORTH TEXAS LOST NEARLY ALL OF ITS SNOW COVER ON THURSDAY AFTERNOON AS TEMPERATURES WARMED INTO THE UPPER 30S TO THE LOWER 40S UNDER FULL MARCH SUN. TEMPERATURES WILL STILL BE WARMER THAN THURSDAY WITH AFTERNOON HIGHS MAINLY IN THE UPPER 40S TO THE LOWER 50S.
410 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BRING COLD BUT DRY CONDITIONS TODAY.
ARCTIC HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH FRIDAY AND SETTLE OVER THE REGION FRIDAY NIGHT.
UPPER LEVEL TROUGH OVER THE EASTERN PACIFIC EXPECTED TO CUT OFF WITH JET STREAM TO MOVE ACROSS THE NORTHERN PACIFIC AND ACROSS CENTRAL CANADA BY 84 HOURS. FLAT UPPER LEVEL RIDGE TO MOVE INTO THE AREA WITH JET STREAM ACROSS CENTRAL CANADA.
1240 AM EST FRI MAR 6 2015 A WEAK LOW PRESSURE SYSTEM WILL TRACK ALONG AN ARCTIC COLD FRONT WELL SOUTH OF THE AREA THROUGH THIS EVENING. HIGH PRESSURE MOVES EAST THROUGH FRIDAY THEN PASSES SOUTH OF THE REGION THIS WEEKEND AS SEVERAL WEAK IMPULSES PASS TO THE NORTH.
/ISSUED 929 PM CST THU MAR 5 2015/ A COLD NIGHT IS IN STORE ACROSS SOUTH CENTRAL TEXAS AS TEMPERATURES DROP TO THE LOWER AND MID 20S ACROSS THE HILL COUNTRY AND UPPER 30S ELSEWHERE. SKIES CONTINUE TO CLEAR ACROSS THE REGION AS DRY AIR IN THE LOW- LEVELS CONTINUES TO FILTER IN FROM THE NORTH.
338 AM EST FRI MAR 6 2015 HIGH PRESSURE DOMINATES. HIGH PRESSURE BUILDS STRONG FROM THE WEST TO BE IN CONTROL OF THE WEATHER CONDITIONS THROUGH TONIGHT. TEMPERATURES SHOULD STAY BELOW FREEZING THIS AFTERNOON. HIGH PRESSURE BUILDS IN WITH DRY ATMOSPHERIC COLUMN IN PLACE.
405 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD IN TODAY.
40 THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE OVER NORTH TEXAS AND A COLD FRONT OVER THE CENTRAL GULF OF MEXICO WILL KEEP STRONG NORTHERLY WINDS AT KGLS THROUGH ABOUT SUNRISE. THE HIGH PRESSURE WILL SLOWLY DRIFT TOWARD SOUTHEAST TEXAS BY MID MORNING FRIDAY. IT WILL STILL GET COLD AND FREEZING TEMPS ARE STILL EXPECTED OVER A LARGE PART OF THE AREA. THE LAST WIDESPREAD FREEZE FOR SE TX OCCURRED ON FEB 26TH AND FREEZING TEMPS HAVE OCCURRED IN NOV. HAVE TWEAKED TEMPS TO GO SLIGHTLY COOLER OVER PARTS OF THE WESTERN ZONES AND SLIGHTLY WARMER EAST PRIMARILY FOR WET GROUND AND CIRRUS SHIELD.
225 AM EST FRI MAR 6 2015 A COLD PRESSURE RIDGE WILL BE CENTERED NORTHWEST OF THE FORECAST AREA TODAY.
Gusts of 30 kts to 40 kts with local gusts to 50 kts can be expected over ridgetops and along the immediate Rocky Mountain Front into Friday morning.
1131 PM CST THU MAR 5 2015 HIGH PRESSURE CONTINUES OVER THE AREA.
AND TO ADD A BIT OF A RIDGE VALLEY SPLIT BASED ON HOURLY TRENDS.
1143 PM CST THU MAR 5 2015 FOR 06Z TAFS /ISSUED 912 PM CST THU MAR 5 2015/ THE LOW LEVEL CLOUD DECK ASSOCIATED WITH OUR WINTER SYSTEM HAVE CLEARED OUT OF THE AREA. COLD/DRY AIR ASSOCIATED WITH A HIGH PRESSURE SYSTEM BUILDING INTO THE AREA WILL START TO MOVE IN LATE TONIGHT. AS THE HIGH PRESSURE BUILDS INTO THE AREA AND WINDS BECOME ORIENTED MORE TO THE N/NE. IF CLOUDS DO BUILD BACK WESTWARD WE MAY NOT SEE TEMPERATURES DROP INTO THE LOW TO MID TEENS. COLD/DRY AIR TO OUR NORTH MAY WIN OUT TONIGHT AND THE LOW LEVEL CLOUDS WILL BE SCATTERED AND LIMITED.
314 AM CST FRI MAR 6 2015 MILD TEMPS ALOFT ARE PUSHING INTO THE REGION WITH THE PASSAGE OF A WARM FRONT. WITH COLDER VALLEY READINGS AND WARMER ELEVATED AREAS WITH A TOUCH MORE WIND TO AID IN MIXING. WITH WARMER READINGS ACROSS CENTRAL SD WHERE WARMER TEMPS ALOFT RESIDE. WAS CAREFUL TO KEEP SNOW COVERED AREAS COOLER TODAY AS IT WILL TAKE A DAY OR TWO TO REMOVE THE REMAINING SNOW COVER BEFORE FULL WARMING POTENTIAL CAN BE REACHED.
SURFACE WINDS ACROSS THE CWA HAVE BEGUN TO SHIFT OUT OF THE SOUTH BEHIND THE EXITING HIGH PRESSURE.
326 AM CST FRI MAR 6 2015 THE LATEST SFC ANALYSIS WAS INDICATING PASSING RIDGE AXIS SINKING EAST-SOUTHEASTWRAD TOWARD THE MOUTH OF THE OH RVR VALLEY. SFC TROF OR EVEN A TYPE OF WARM FRONT WAS EVIDENT ACRS THE CENTRAL AND UP INTO THE NORTHERN PLIANS. GUSTY SOUTH TO SOUTHWEST WINDS AND WARM AIR ADVECTION REGIME TO DRAW UPON PLIANS THERMAL POOL AND MAKE FOR LATE AFTERNOON HIGHS GENERALLY IN THE LOW TO MID 30S NORTH OF I80.
BUT FAVOR THE WARMER SIDE OF THE ENVELOPE GIVEN GFS/ECMWF ENSEMBLE GUIDANCE. CLOUD COVER AHEAD OF THE TROUGH WILL QUICKLY PUSH EAST THIS MORNING WITH PARTLY TO MOSTLY SUNNY SKIES IN ITS WAKE. A SECONDARY TROUGH WILL DROP SOUTH TONIGHT.
1141 PM CST THU MAR 5 2015 AT 19Z WATER VAPOR IMAGERY SHOWED A DEEP TROUGH EXTENDING FROM EASTERN CANADA DOWN INTO THE LOWER MISSISSIPPI RIVER VALLEY WITH RIDGING ACROSS THE WEST COAST. THIS WAS BRINGING WARMER AIR ALOFT AND WITH DOWNSLOPE WESTERLY WINDS. THIS WILL SPREAD THE WARMER AIRMASS ACROSS THE ENTIRE FORECAST AREA. LOWS TONIGHT ARE EXPECTED TO BE WARMER THAN THE PAST FEW NIGHTS DUE TO THE WARMER AIR. SKIES SHOULD BE MOSTLY SUNNY AS THE MODELS ARE SHOWING LITTLE MOISTURE OVER THE AREA AS MOST OF THE CLOUD COVER MOVING OVER THE RIDGE IN SOUTHWEST CANADA WILL PASS ACROSS THE DAKOTAS AS THE RIDGE BEGINS TO BROADEN CAUSING MORE WESTERLY FLOW THAN NORTHERLY FLOW LOCALLY. THE LOW LEVEL FLOW WILL ALSO BE WESTERLY.
THESE DOWNSLOPING WINDS WILL LEAD TO A SIGNIFICANT WARM UP TODAY WITH HIGHS REACHING INTO THE LOWER 60S THIS AFTERNOON.
THESE DOWNSLOPING WINDS WILL LEAD TO A SIGNIFICANT WARM UP TODAY WITH HIGHS REACHING INTO THE LOWER 60S THIS AFTERNOON. MEDIUM RANGE MODELS INDICATE A WESTERLY FLOW ALOFT PREVAILING ACROSS THE WESTERN HIGH PLAINS THROUGH THE WEEKEND AS A RIDGE OF HIGH PRESSURE REMAINS SETTLED ACROSS THE CALIFORNIA COAST.
BUT WAA SPREADING IN AHEAD OF AN APPROACHING LOW PRESSURE SYSTEM.
1257 AM EST FRI MAR 6 2015 HIGH PRESSURE WILL BUILD SOUTH OF NEW ENGLAND TONIGHT THROUGH FRIDAY.
1241 AM EST FRI MAR 6 2015 A STRONG RIDGE OF HIGH PRESSURE WILL MOVE ACROSS THE NORTH COUNTRY OVERNIGHT.
Westerly wind gusts 30 to 40 kts with local gusts to 50 kts can be expected over ridgetops and along the immediate Rocky Mountain Front into Friday morning with winds in that area diminishing during the afternoon.
CORRECTED TYPOS THE LATEST SFC ANALYSIS WAS INDICATING PASSING RIDGE AXIS SINKING EAST-SOUTHEASTWARD TOWARD THE MOUTH OF THE OH RVR VALLEY. SFC TROF OR EVEN A TYPE OF WARM FRONT WAS EVIDENT ACRS THE CENTRAL AND UP INTO THE NORTHERN PLAINS. GUSTY SOUTH TO SOUTHWEST WINDS AND WARM AIR ADVECTION REGIME TO DRAW UPON PLAINS THERMAL POOL AND MAKE FOR LATE AFTERNOON HIGHS GENERALLY IN THE LOW TO MID 30S NORTH OF I80.