Aikyam-Lab/Synoptic-Bench huggingface dataset:
308 AM CST Thu Feb 5 2015 Cold Canadian high pressure was sliding over the region early this morning and will remain in control of the region's weather through today and into tonight. Despite sunny skies today, temperatures will only climb into the lower to middle 30s.
This low should settle into central Missouri by morning, resulting in ideal radiational cooling as skies clear. A much colder airmass was infiltrating the area this afternoon behind a cold front that had pushed into northern Arkansas. Let the warming trend begin as a massive upper level ridge builds across the nation's midsection through the next several days.
321 AM CST THU FEB 5 2015 LOW PRESSURE SYSTEM PULLING WELL AWAY FROM THE REGION WITH A NEUTRAL ADVECTION REGION CURRENTLY IN PLACE OVER MUCH OF THE FORECAST AREA. SURGE OF HIGH PRESSURE A BIT IN LAG WITH LEADING EDGE ROUGHLY FROM KATL-KGWO-KSHV-KACT.
SKIES HAVE BEGUN TO CLEAR ACROSS THE SANDHILLS AND PORTIONS OF SOUTHWESTERN NEBRASKA AS ARCTIC HIGH PRESSURE BUILDS SOUTH FROM THE DAKOTAS. THEY ARE LIKELY TO STABILIZE AND MAY EVEN BEGIN INCREASING SO THAT THE LOW TEMPERATURES WILL BE LATE TONIGHT RATHER THAN EARLY THURSDAY. A MUCH QUIETER NIGHT ACROSS THE REGION TONIGHT AS ARCTIC HIGH PRESSURE SETTLES IN. A WARM FRONT WILL MOVE EAST ACROSS THE AREA LATE TONIGHT. WITH TEMPERATURES ACTUALLY RISING AT MOST LOCATIONS AFTER MIDNIGHT AS WARMER PACIFIC AIR BEGINS TO SPREAD IN FROM THE WEST. WARMER PACIFIC AIR WILL CONTINUE TO STREAM EAST THURSDAY.
1137 PM CST WED FEB 4 2015 STRONG NORTHERLY WINDS IN THE WAKE OF A COLD FRONT WILL CONTINUE TO DIMINISH DURING THE EARLY MORNING HOURS ON THURSDAY. VERY LIGHT FREEZING DRIZZLE MAY ALSO BE POSSIBLE BUT WOULD LIKELY BE LOCALIZED. RETURN SOUTHWEST BREEZES EXPECTED THURSDAY AS NEW LEE TROUGH FORMS WITH MODEST DRY NORTHWEST FLOW ALOFT. RMCQUEEN LITTLE CHANGE MADE TO THE EXTENDED WITH UPPER RIDGING PROJECTED TO GRADUALLY PASS ACROSS THE SOUTHERN HIGH PLAINS THROUGH MUCH OF THE PERIOD.
MAINLY NORTH OF I-80 AND OVER THE RIDGES. WIDESPREAD SNOW CONTINUES TO DRIFT SOUTHWARD WITH THE SLOW MOVING COLD FRONT. MODELS ARE SHOWING A MUCH COLDER AND DRIER AIR MASS FILLING IN BEHIND THE TROUGH. BUT MODELS ARE HITTING THE THREAT FOR SNOW SHOWERS HARDER ACROSS THE NORTH AND RIDGES. THE RIDGES WILL STAND THE BEST CHANCE FOR SNOW SHOWERS THROUGH THE MORNING AND INTO THE AFTERNOON AS AN OPTIMAL SETUP FOR UPSLOPE ACTIVITY ENSUES. AS THE MID- LEVEL RIDGE MOVES EASTWARD.
357 AM EST THU FEB 5 2015 STRONG COLD FRONT CROSSES OVERNIGHT.
327 AM CST Thu Feb 5 2015 Arctic high pressure is settling over central Illinois from the northwest this morning with temperatures ranging from -8 in Lacon to 19 at Mount Carmel Airport. As the center of the high approaches and crosses the state, winds will decrease through the morning eventually becoming light southerly by afternoon. High pressure builds back into the Midwest as an upper trof sets up more northwesterly flow aloft.
CLOUD COVER WILL CONTINUE THROUGH THE DAY AS A WEAK COLD FRONT MOVES THROUGH AROUND NOON.
EXPECT IFR CONDITIONS TO DEVELOP ACROSS THE REMAINDER OF THE REGION THROUGH THE OVERNIGHT HOURS AS THE COLD FRONT APPROACHES FROM THE NORTH. EXPECT WINDS TO EASE AND BECOME MORE EASTERLY LATE IN THE TAF PERIOD AS HIGH PRESSURE SETTLES INTO EAST TEXAS.
1153 PM CST WED FEB 4 2015 FOR 06Z TAFS /ISSUED 921 PM CST WED FEB 4 2015/ AS OF 03Z A BAND OF LIGHT RAIN JUST AHEAD OF THE COLD FRONT WAS MOVING THROUGH THE MEMPHIS AREA. THE COLD FRONT AND LIGHT RAIN SHOWERS SHOULD ENTER NW ALABAMA BETWEEN 04-06Z TONIGHT. TEMPERATURES HOLD JUST ABOVE FREEZING UNTIL AFTER 09Z AND ANY PRECIP FALLING BETWEEN 06-09Z SHOULD REMAIN LIQUID. THE HRRR/RAP/HIRES GUIDANCE HAVE THE BAND OF LIGHT SNOW/FLURRIES BEHIND THE COLD FRONT PUSHING THROUGH THE AREA AROUND 12Z. A FEW LOCATIONS IN THE HIGHER ELEVATIONS OF NE ALABAMA AND SOUTHERN MIDDLE TENNESSEE MAY SEE A DUSTING OF SNOW IN GRASSY AREAS AND ON ELEVATED SURFACES AROUND 12Z. TEMPERATURES ARE BACK ABOVE FREEZING SHORTLY AFTER SUNRISE THURSDAY. STUMPF COLD FRONT WAS ENTERING NW ALABAMA AS OF 0530Z.
1105 PM CST WED FEB 4 2015 /06Z TAFS/ A cold front has moved through all of West Central Texas resulting in north winds of 12 to 20 knots, with higher gusts, and MVFR/IFR ceilings. /ISSUED 508 PM CST WED FEB 4 2015/ /00Z TAFS/ A cold front continues to move through West Central Texas late this afternoon and should be through the Interstate 10 corridor by 03z. /ISSUED 352 PM CST WED FEB 4 2015/ (Tonight and Thursday) A strong cold front was approaching from the north this afternoon and was crossing the Red River as of 3 PM. A much colder airmass will filter in behind the front tonight, with overnight lows ranging from the mid 20s north, to the lower and middle 30s south.
341 AM CST THU FEB 5 2015 THE COLD FRONT HAS PASSED THROUGH THE CWA. FORTUNATELY THE UPPER TROUGH WILL MOVE ACROSS THE EASTERN US QUICKLY AND TEMPERATURES COLDER THAN THE TEENS WILL NOT IMPACT MIDDLE TN. TEMPERATURES WILL BE COOLER TODAY EVEN WITH ABUNDANT SUNSHINE AFTER THE CLOUD DECK MOVES THROUGH. IN THE WAKE OF THE COLD FRONT AS 850MB TEMPS WILL BE BELOW ZERO FOR THE DAY AS WELL.
347 AM CST Thu Feb 5 2015 (Today and Tonight) A strong cold front cleared the area overnight, leaving much colder temperatures and cloudy skies in its wake. Being behind the strong cold front, and with clouds in place most of the day, temperatures will be much cooler than yesterday with highs in the mid 40s into the lower 50s. Tonight, with clear skies and light winds, temperatures will drop into the lower 30s most areas, and possibly into the upper 20s in low lying areas and valley locations along the I-10 corridor.
STRONG TEMP GRADIENT COLD FRONT PUSHING THRU BNA APPROACHING 05/06Z. PROGRESSIVE DRY NWLY FLOW ALOFT ALONG WITH BUILDING RIDGING INFLUENCES BEHIND THIS FRONTAL PASSAGE WILL USHER IN SKC CONDITIONS MOST AREAS AFTER 05/12Z. STRONG COLD FRONT STARTS TO PUSH INTO OUR NW PORTION OF MID STATE AFTER 02/00Z. /ISSUED 223 PM CST WED FEB 4 2015/ COLD FRONT HAS WORKED DOWN INTO SOUTHERN ILLINOIS. WITH TEMPS GOING BELOW FREEZING QUICKLY TONIGHT AND LOWS IN THE 20S WE COULD BE LOOKING AT SOME TRAVEL ISSUES FOR THE MORNING COMMUTE. THIS SYSTEM WILL PULL EAST RATHER QUICKLY THURSDAY MORNING WITH HIGHS ON THURSDAY GETTING UP INTO THE LOW TO MIDDLE 30S UNDER PLENTY OF SUNSHINE.
540 PM CST WED FEB 4 2015 ARCTIC HIGH PRESSURE WILL MOVE INTO IA TONIGHT AND PASS EAST ON THURSDAY. WITH CLEARING ALREADY PRESENT ACROSS THE MAJORITY OF THE CWA AS A LARGE AREA OF ARCTIC HIGH PRESSURE BUILDS INTO THE STATE. CENTER OF THE HIGH EXPECTED TO DROP SOUTH SOUTHEAST THROUGH THE NIGHT JUST SKIRTING THE WESTERN CWA. MUCH WARMER PACIFIC AIR WILL FLOOD THE STATE. TEMPERATURES WILL NOT FALL OFF MUCH FROM THE HIGHS TOMORROW THOUGH THE NIGHT TOMORROW NIGHT WITH 30 TO 40 DEGREE TEMPS BY FRI.
1041 PM EST WED FEB 4 2015 LOW PRESSURE MOVING THROUGH NORTHERN FLORIDA TONIGHT WILL BE OFF THE SOUTHEAST COAST THURSDAY. THE LOW WILL BE WELL NORTHEAST OF THE FORECAST AREA BY LATE THURSDAY. DRY WEATHER WILL RETURN THURSDAY INTO THE WEEKEND AS HIGH PRESSURE SETTLES OVER THE AREA.
Freezing drizzle has developed in a more widespread fashion late this afternoon/early evening than initially expected. 00Z SGF sounding is in the air, and indicates that just enough dry air has remained in place within the ice crystal growth zone to result in freezing drizzle vs. This snow will continue to drop south through the area this evening, though most locations will experience a few hours of freezing drizzle ahead of the snow. Precipitation will end by late evening tonight, though as temperatures fall into the low teens, some travel impacts may continue into the morning hours. A much colder airmass was infiltrating the area this afternoon behind a cold front that had pushed into northern Arkansas. Let the warming trend begin as a massive upper level ridge builds across the nation's midsection through the next several days.
AREA OF LIFT IS SHIFTING NORTHEAST AS EXPECTED WITH SIGNIFICANT DRYING ALOFT SPREADING ONTO THE PLAINS WITH SOME SUN APPEARING THROUGH BREAKS IN THE LOW LEVEL STRATUS DECK. NOT MUCH OF AN INVERSION AND FAIRLY SHEARED SO STRONG WINDS WILL PROBABLY STICK TO THE HIGHER MOUNTAINS AND THE MOST FAVORED PLACES. ON TRACK FOR A MUCH WARMER DAY ON THURSDAY. BUT WITH THE DOWNSLOPE WINDS CONTINUING IT WILL BE TRYING TO MIX THE WARMER AIR DOWN SO I DID NOT MAKE A BIGGER ADJUSTMENT.
508 PM CST WED FEB 4 2015 /00Z TAFS/ A cold front continues to move through West Central Texas late this afternoon and should be through the Interstate 10 corridor by 03z. /ISSUED 352 PM CST WED FEB 4 2015/ (Tonight and Thursday) A strong cold front was approaching from the north this afternoon and was crossing the Red River as of 3 PM. A much colder airmass will filter in behind the front tonight, with overnight lows ranging from the mid 20s north, to the lower and middle 30s south.
STRONG COLD FRONT STARTS TO PUSH INTO OUR NW PORTION OF MID STATE AFTER 02/00Z. /ISSUED 223 PM CST WED FEB 4 2015/ COLD FRONT HAS WORKED DOWN INTO SOUTHERN ILLINOIS. WITH TEMPS GOING BELOW FREEZING QUICKLY TONIGHT AND LOWS IN THE 20S WE COULD BE LOOKING AT SOME TRAVEL ISSUES FOR THE MORNING COMMUTE. THIS SYSTEM WILL PULL EAST RATHER QUICKLY THURSDAY MORNING WITH HIGHS ON THURSDAY GETTING UP INTO THE LOW TO MIDDLE 30S UNDER PLENTY OF SUNSHINE.
A cold front currently moving through the area will bring gusty winds out of the north to northeast. A cold front just moved across Lubbock with the cold air a little ways behind the front. Low clouds/fog along with much colder temps are in the northern TX Panhandle with Amarillo sitting at 28 degrees with freezing fog. The cold front will blast across the CWA late this aftn and evening. Temps will be colder tonight with freezing fog possible.
A STRONG WARM FRONT WILL BRING HEAVY RAIN AND WINDY CONDITIONS STARTING LATE TONIGHT AND CONTINUING ON THURSDAY.
637 PM EST WED FEB 4 2015 STRONG COLD FRONT CROSSES TONIGHT.
922 PM EST WED FEB 4 2015 STRONG COLD FRONT CROSSES TONIGHT.
334 PM MST WED FEB 4 2015 AREA OF LIFT IS SHIFTING NORTHEAST AS EXPECTED WITH SIGNIFICANT DRYING ALOFT SPREADING ONTO THE PLAINS WITH SOME SUN APPEARING THROUGH BREAKS IN THE LOW LEVEL STRATUS DECK. NOT MUCH OF AN INVERSION AND FAIRLY SHEARED SO STRONG WINDS WILL PROBABLY STICK TO THE HIGHER MOUNTAINS AND THE MOST FAVORED PLACES. ON TRACK FOR A MUCH WARMER DAY ON THURSDAY. BUT WITH THE DOWNSLOPE WINDS CONTINUING IT WILL BE TRYING TO MIX THE WARMER AIR DOWN SO I DID NOT MAKE A BIGGER ADJUSTMENT.
459 PM CST Wed Feb 4 2015 A much colder airmass was infiltrating the area this afternoon behind a cold front that had pushed into northern Arkansas. Let the warming trend begin as a massive upper level ridge builds across the nation's midsection through the next several days.
GENERAL LIGHT AND VARIABLE FLOW THROUGH THE OVERNIGHT WITH MFVR/IFR CEILINGS AHEAD OF AN APPROACHING COLD FRONT. BUT AREAS OF FOG AND THE LOWEST VISIBILITIES ALONG THE COAST AND COASTAL PLAINS. A COLD FRONT WILL ENTER THE NORTHERN BORDER OF THE AREA AROUND 09-10Z AND MAKE IT TO THE COAST AROUND 12Z. BUT FEEL THE LOW-LEVEL DRY AIR SHOULD EVAPORATE THE PRECIPITATION.
A QUICK DROP IS EXPECTED THIS EVENING AS THE HIGH MOVES IN FROM THE EASTERN DAKOTAS. THE SECOND CONCERN IS INCREASING SOUTHERLY WINDS ON THE BACKSIDE OF THE HIGH ON THURSDAY. THE WIND WILL BEGIN TO INCREASE OFF THE BUFFALO RIDGE LATE TONIGHT WITH SOME BLOWING SNOW POSSIBLE ACROSS WEST CENTRAL MN IN THE MORNING. LITTLE CHANGE TO THE HIGHS ON THURSDAY WITH READINGS RANGING FROM THE HIGH TEENS IN THE EAST TO THE LOWER AND MIDDLE 20S IN WEST CENTRAL MN DUE TO THE DOWNSLOPE WIND.
MVFR CONDITIONS WILL BECOME WIDESPREAD OVER THE NEXT SEVERAL HOURS AS A COLD FRONT AND LOW CLOUDS MOVE THROUGH THE STATE.
518 PM CST WED FEB 4 2015 WATER VAPOR SATELLITE IMAGERY SHOWS A MID-LEVEL TROUGH ROTATING SOUTHEAST ACROSS THE REGION. STEEP LAPSE RATES UNDER THIS TROUGH WAS PRODUCING SCATTERED-BROKEN CUMULUS AND A FEW FLURRIES. LOOK FOR THIS TROUGH TO SLIDE OFF TO THE EAST THIS EVENING AS HIGH PRESSURE BUILDS OVER THE UPPER MISSISSIPPI RIVER VALLEY REGION. VERY LIGHT WINDS EXPECTED OVERNIGHT AS THE HIGH DRIFTS OVERHEAD.
AN AREA OF LOW PRESSURE WILL MOVE ACROSS THE CENTRAL AND EASTERN GULF OF MEXICO TONIGHT WITH INCREASING WINDS AND BUILDING SEAS. A COLD FRONT WILL PUSH ACROSS THE WATERS ON THURSDAY WITH WINDS SHIFTING TO THE NORTH WITH WINDS NEAR ADVISORY LEVELS ACROSS THE REGION.
A COLD FRONT THIS EVENING WAS LOCATED ROUGHLY ALONG A LINE FROM MAF-ABI-MWL LINE AND RACING SOUTH. CURRENTLY MODELS AND TAFS INDICATE THE COLD FRONT WILL ENTER THE DRT AREA AROUND 08Z. STRONG N WINDS WILL DEVELOP BEHIND THE COLD FRONT AND PERSIST THROUGH MIDDAY ON THU. UPPER AIR ANALYSIS THIS MORNING SHOWED THE UPPER LOW HAD OPENED INTO A WAVE OVER TEXAS. A COLD FRONT WAS STRETCHED ACROSS OKLAHOMA AND THE TEXAS PANHANDLE. DURING THIS PERIOD THE UPPER TROUGH WILL MOVE OFF TO THE EAST AND NORTHWESTERLY FLOW WILL MOVE OVER TEXAS. THE SURFACE COLD FRONT WILL DROP THROUGH OUR CWA TONIGHT. NORTHERLY WINDS AND COOLER AIR WILL MOVE IN THURSDAY DURING THE DAY.
917 PM CST WED FEB 4 2015 CURRENTLY WATCHING A STRONG COLD FRONT WHICH AS OF 03Z WAS LOCATED NEAR A SRC/FSM/PRX/TRL/SJT LINE. MORE PATCHY LIGHT RAIN IS ONGOING FARTHER NORTH AHEAD OF AN APPROACHING COLD FRONT. COLD FRONT WILL SWEEP ACROSS THE AREA OVERNIGHT AND NELY WINDS WILL INCREASE TO BETWEEN 10 AND 15 KTS WITH A FEW GUSTS UP TO 20 KTS.
TEMPERATURES HAVE HAD LITTLE TROUBLE WARMING UP IN THE LOWER ELEVATIONS WITH MID 30S TO MID 40S IN THE HIGH VALLEYS AND UPPER 40S TO UPPER 50S LOWER VALLEYS. WITH CONCERNS MAINLY ASSOCIATED WITH TRAVEL AT THE HIGHER ELEVATIONS INCLUDING VAIL PASS. THE GRADIENT STAYS RATHER TIGHT AT MOUNTAIN TOP LEVELS ON THURSDAY SO EXPOSED RIDGES ARE LIKELY TO BE BREEZY.
A COLD FRONT PUSHED WESTWARD ACROSS THE PLAINS THIS MORNING WITH WIDESPREAD STRATUS FILLING IN BEHIND THE FRONT. THE UPPER LEVEL PATTERN WILL CONTINUE TO PROGRESS THROUGH THURSDAY WITH THE UPPER LEVEL RIDGE BUILDING TO THE WEST SHIFTING INTO THE ROCKIES. LEE TROUGHING IS FORECAST TO DEVELOP LATE TONIGHT WITH WESTERLY WINDS BEGINNING TO MIX. INFLUENCES OF THE UPPER RIDGE WILL BEGIN TO BE FELT. MOZLEY UPPER RIDGE WILL DRIFT SLOWLY EASTWARD ACROSS THE ROCKIES FRI/SAT. COOLER AIR WILL SPREAD SOUTH SUN AS WEAK COLD FRONT DROPS INTO THE STATE. FLAT UPPER RIDGE THEN REBUILDS MON/TUE. UPPER TROUGH DROPS SOUTH INTO THE GREAT BASIN LATE TUE. STILL MODEL DIFFERENCES REGARDING HOW FAR WEST GREAT BASIN TROUGH/LOW DIGS.
450 PM PST WED FEB 4 2015 UPDATED AVIATION SECTION HIGH PRESSURE WILL RESULT IN MILD AND DRY WEATHER THROUGH THE END OF THE WEEK.
637 PM EST WED FEB 4 2015 LOW PRESSURE IN THE NORTHERN GULF OF MEXICO WITH ITS TAILING COLD FRONT APPROACHING SOUTH FLORIDA LATE IN THE PERIOD WILL CAUSE AN INCREASED CLOUD COVER OVERNIGHT AND EARLY THURSDAY WITH ALSO SOME RAIN CHANCES INCREASING. /ISSUED 246 PM EST WED FEB 4 2015/ WATER VAPOR SATELLITE IMAGERY SHOWS AN AREA OF LOW PRESSURE CURRENTLY LOCATED OVER THE TEXAS COASTAL WATERS MOVING EASTWARD. A WARM FRONT WILL TAKE SHAPE OVER NORTH CENTRAL FLORIDA TODAY, KEEPING THE PRECIPITATION TO THE NORTH THROUGH THE EVENING HOURS. BEHIND THE FRONT, HIGH PRESSURE WILL BUILD IN ONCE AGAIN. THIS HIGH SHOULD KEEP THE WEATHER DRY THROUGH THE WEEKEND.
5 TO 1 INCHES EXPECTED TONIGHT LOCALLY HIGHER POSSIBLE IN SOME AREAS ESPECIALLY OVER NE FL WHERE CONVERGENCE ON THE NORTH SIDE OF THE LOW WILL BE STRONGEST AFTER MIDNIGHT THROUGH EARLY THU MORNING. PRECIP WILL CLEAR FROM NW-SE EARLY THU MORNING WITH CLEARING SKIES INTO THE AFTN WITH HIGHS WARMING INTO THE LOW 60S. VCTS AT GNV MAINLY BETWEEN 04Z-09Z AS WEAK ELEVATED INSTABILITY DEVELOPS WITH APPROACHING UPPER TROUGH.
WITH A COLD FRONT BRINGING A WHOLESALE CHANGE IN AIR MASS RESULTING IN A NOTABLE DROP IN TEMPS EVERYWHERE BEFORE DAWN. 19Z SFC ANALYSIS SHOWS THE HIGH PRESSURE WEAKENING TO THE SOUTHEAST OF KENTUCKY WHILE THE ARCTIC COLD FRONT SINKS TOWARD THE STATE FROM THE NORTHWEST. THE MODELS ARE IN GOOD AGREEMENT ALOFT THROUGH THE SHORT TERM WITH FAST FLOW OVER THE OHIO VALLEY THAT QUICKLY TRANSITIONS INTO A DECENT SIZED TROUGH MOVING THROUGH BY 12Z THURSDAY. THIS TROUGH WILL PUSH ITS ENERGY ACROSS EASTERN KENTUCKY LATE TONIGHT WITH GENERAL NORTHWEST FLOW TO FOLLOW BUT LITTLE IN THE WAY OF ADDITIONAL ENERGY. HAVE FAVORED THE HIGHER RESOLUTION NAM12 AND HRRR FOR WEATHER DETAILS.
THE COLD FRONT HAS PUSHED INTO NORTHWEST TENNESSEE EARLY THIS EVENING. A COLD FRONTAL PASSAGE WILL BRING A WIND SHIFT TO THE NORTHWEST OVERNIGHT. WILL HAVE TO WATCH RADAR TRENDS ASSOCIATED WITH THE COLD FRONT. AS THIS SYSTEM BEGINS TO EXIT TO THE EAST OUR ATTENTION QUICKLY TURNS TO A STRONG COLD FRONT THAT WILL ENTER FROM THE NW THIS EVENING AND CROSS THE CWA OVERNIGHT. MUCH DRIER AND COOLER AIR WILL SETTLE INTO THE REGION IN THE WAKE OF THE FRONT. HIGHS ON THURSDAY WILL STRUGGLE TO RISE INTO THE LOW 40S IN THE NORTH WITH SOME LOW/MID 50S IN THE SOUTHEAST. WITH GOOD RADIATIONAL COOLING TEMPS WILL FALL INTO THE LOW/MID 20S WITH SOME UPPER TEENS POSSIBLE IN THE CLIMATOLOGICALLY COOLER VALLEYS IN THE NORTH.
656 PM CST WED FEB 4 2015 LIGHT RAIN HAS BEEN INCREASING OVER NE LA/SWRN MS IN RESPONSE TO APPROACHING UPPER LEVEL TROUGH OVER CNTRL LA. AND HRRR GUIDANCE SHOWS SOME LIGHT QPF EXTENDING A BIT FARTHER EAST BEFORE THE TROUGH SHEARS EASTWARD. THE ANTICIPATED COLD FRONT IS CURRENTLY PASSING THROUGH SOUTHEAST OK AND NORTHWEST AR AND MAKING ITS WAY SOUTHWARD. PRECIP WILL COME TO AN END AROUND 12Z TOMORROW MORNING AND AFTER THIS WE WILL BE IN FOR COOLER TEMPS AND CLEARING SKIES. HIGHS ARE EXPECTED TO RANGE FROM THE LOW 40S TO THE LOW 50S FROM NORTH TO SOUTH.
643 PM EST WED FEB 4 2015 COLD FRONT WORKING ACROSS NORTHERN OH/NW PA FIRST THING THIS EVENING.
THE MID LEVEL TROUGH CURRENTLY IN THE CENTRAL GULF OF MEXICO IS MOVING EAST AT AROUND 25 KNOTS WITH A BAND OF SHOWERS AND A FEW THUNDERSTORMS AHEAD OF IT. /ISSUED 637 PM EST WED FEB 4 2015/ LOW PRESSURE IN THE NORTHERN GULF OF MEXICO WITH ITS TAILING COLD FRONT APPROACHING SOUTH FLORIDA LATE IN THE PERIOD WILL CAUSE AN INCREASED CLOUD COVER OVERNIGHT AND EARLY THURSDAY WITH ALSO SOME RAIN CHANCES INCREASING. /ISSUED 246 PM EST WED FEB 4 2015/ WATER VAPOR SATELLITE IMAGERY SHOWS AN AREA OF LOW PRESSURE CURRENTLY LOCATED OVER THE TEXAS COASTAL WATERS MOVING EASTWARD. A WARM FRONT WILL TAKE SHAPE OVER NORTH CENTRAL FLORIDA TODAY, KEEPING THE PRECIPITATION TO THE NORTH THROUGH THE EVENING HOURS. BEHIND THE FRONT, HIGH PRESSURE WILL BUILD IN ONCE AGAIN. THIS HIGH SHOULD KEEP THE WEATHER DRY THROUGH THE WEEKEND.
MEANWHILE A COLD FRONT CONTINUES TO APPROACH FROM THE NORTHWEST AND CURRENTLY EXTENDS FROM AROUND FORT SMITH TO JONESBORO TO BOWLING GREEN. LIGHT RAIN ASSOCIATED WITH AN UPPER LEVEL TROUGH WILL BE MOVING OUT IN THE NEXT FEW HOURS. A STRONG COLD FRONT WILL BRING A PERIOD OF MVFR CATEGORY CIGS TO TAF SITES LATE TONIGHT INTO THURSDAY MORNING ALONG WITH GUSTY NORTH SFC WINDS. /EC/ PRECIP WILL COME TO AN END AROUND 12Z TOMORROW MORNING AND AFTER THIS WE WILL BE IN FOR COOLER TEMPS AND CLEARING SKIES. HIGHS ARE EXPECTED TO RANGE FROM THE LOW 40S TO THE LOW 50S FROM NORTH TO SOUTH.
PATCHY DRIZZLE/FREEZING DRIZZLE WILL BE POSSIBLE THIS EVENING AT A FEW TAF SITES. A COLD FRONT CONTINUES TO MOVE SOUTHWARD ACROSS THE HIGH PLAINS OF WEST TEXAS INTO WESTERN AND CENTRAL OKLAHOMA. WITH SPOTTY REPORTS OF LIGHT FREEZING DRIZZLE AND/OR FREEZING FOG. THIS MAY LEAD TO A FEW SLICK SPOTS ON BRIDGES AND OVERPASSES IN THESE AREAS. SPOTTY SNOW AND OR SLEET MAY OCCUR AS WEAK LIFT OVERSPREADS THE SUB FREEZING AIRMASS TONIGHT. THOUGH A FEW SLICK SPOTS MAY DEVELOP ON BRIDGES AND OVERPASSES IF ANY RESIDUAL MOISTURE FREEZES BEHIND THE FRONT LATER THIS EVENING.
A cold front just passed southeast of Lawrenceville at mid afternoon with a snow band pressing ese to along I-72 and has been weakening the past few hours. Clouds to decrease from the nw later this evening and overnight as nnw winds 10-20 mph and some higher gusts of 20-25 mph diminish as well especially overnight as 1036 mb arctic high pressure over the central Dakotas settles to the IA/MO/IL border area by mid morning Thu. For Wed, more significant wave moves through the Great Lakes with trailing cold front.
WIDESPREAD RAIN WITH A FEW STORMS WILL OVERSPREAD EC FL TONIGHT DEAMPLIFYING SHORT WAVE TROUGH OVER LA/MS WILL CONTINUE TO SHEAR OUT AS IT PHASES WITH NORTHERN STREAM TROUGH. THIS FEATURE WILL CROSS CENTRAL FL LATE TONIGHT/EARLY THU AND SWING A COLD FRONT THROUGH THE AREA DURING THE DAY. A COLD FRONT WILL BE ON THE DOORSTEP OF LAKE/VOLUSIA COUNTIES NEAR SUNRISE AND CONTINUE SOUTHEASTWARD THRU THE DAY. GUIDANCE INDICATES BREEZY/GUSTY CONDS AS THE LOW PRESSURE SYSTEM NEARS/PASSES ON THU. SOUTHERLY FLOW WILL INCREASE AHEAD OF WEAK LOW PRESSURE APPROACHING FROM THE GULF OF MEXICO. STRONG OFFSHORE FLOW EARLY THU WILL VEER TO THE NORTH BEHIND THE COLD FRONT AND PRODUCE HAZARDOUS BOATING CONDITIONS SO THE SMALL CRAFT ADVISORY ALREADY IN PLACE FOR ALL THE WATERS LOOKS GOOD FOR THU.
411 PM PST WED FEB 4 2015 A RIDGE OF HIGH PRESSURE WILL BRING DRY WEATHER AND ABOVE NORMAL AFTERNOON TEMPERATURES TO THE CENTRAL CALIFORNIA INTERIOR THROUGH AT LEAST THURSDAY WITH PATCHY LATE NIGHT AND MORNING FOG IN THE SAN JOAQUIN VALLEY.
AS OF 03Z A BAND OF LIGHT RAIN JUST AHEAD OF THE COLD FRONT WAS MOVING THROUGH THE MEMPHIS AREA. THE COLD FRONT AND LIGHT RAIN SHOWERS SHOULD ENTER NW ALABAMA BETWEEN 04-06Z TONIGHT. TEMPERATURES HOLD JUST ABOVE FREEZING UNTIL AFTER 09Z AND ANY PRECIP FALLING BETWEEN 06-09Z SHOULD REMAIN LIQUID. THE HRRR/RAP/HIRES GUIDANCE HAVE THE BAND OF LIGHT SNOW/FLURRIES BEHIND THE COLD FRONT PUSHING THROUGH THE AREA AROUND 12Z. A FEW LOCATIONS IN THE HIGHER ELEVATIONS OF NE ALABAMA AND SOUTHERN MIDDLE TENNESSEE MAY SEE A DUSTING OF SNOW IN GRASSY AREAS AND ON ELEVATED SURFACES AROUND 12Z. TEMPERATURES ARE BACK ABOVE FREEZING SHORTLY AFTER SUNRISE THURSDAY. WINDS SHIFT TO THE NORTHWEST BETWEEN 05-06Z AS THE COLD FRONT PUSHES ACROSS THE AREA.
1020 PM EST WED FEB 4 2015 A COLD FRONT WILL EXIT THE AREA OVERNIGHT.
/ISSUED 305 PM CST WED FEB 4 2015/ 20Z SURFACE MAP SHOWED A COLD FRONT OVER SOUTHEAST MO. WITH WEST PLAINS IN THE LOWER 50S. ABOUT THE TIME THE SURFACE FREEZING LINE DROPS TO A POSITION PARALLEL AND ABOUT 30 MILES NORTH OF I40. WHERE SNOWFALL AND CONCURRENT SUBFREEZING TEMPS LIMIT MELTING.
529 PM CST WED FEB 4 2015 A FEW BREAKS IN THE OVERCAST ACROSS SOUTHEAST TEXAS EARLY THIS EVENING BUT CONDITIONS ARE EXPECTED TO DETERIORATE AHEAD OF AN APPROACHING COLD FRONT. ANOTHER REINFORCEMENT OF COOLER AIR WILL MOVE INTO SOUTHEAST TEXAS TOMORROW AS A RELATIVELY WEAK COLD FRONT MOVES THROUGH THE AREA IN THE MORNING. THERE MAY BE SOME PATCHY FOG AHEAD OF THE COLD FRONT EARLY IN THE MORNING.
A HIGH PRESSURE SYSTEM OVER THE WESTERN NORTH ATLANTIC WILL MOVE FARTHER EASTWARD OVERNIGHT. A WEAK LOW PRESSURE SYSTEM WILL MOVE NORTHEASTWARD ACROSS THE GULF OF MEXICO OVERNIGHT AND THURSDAY. AN ASSOCIATED COLD FRONT WILL SWEEP THROUGH THE FLORIDA KEYS THURSDAY EVENING. IN WAKE OF THE COLD FRONT. A HIGH PRESSURE AREA WILL BUILD IN FROM THE NORTH.
1007 PM EST WED FEB 4 2015 A COLD FRONT CROSSES THE REGION LATE TONIGHT. LOW PRESSURE WILL INTENSIFY AS IT SHIFTS INTO THE MARITIMES ON THURSDAY WITH A STRONG NORTHWEST FLOW SETTING UP IN ITS WAKE. A RIDGE OF HIGH PRESSURE WILL BUILD IN FROM THE WEST THURSDAY NIGHT.
HIGH PRESSURE STRENGTHEN ACROSS THE REGION THROUGH THE REMAINDER OF THE WEEK. WATER VAPOR LOOP SHOWS A RIDGE ALONG THE WEST COAST. AND INCREASING WINDS ALONG THE RIDGELINES SLIGHTLY BASED ON OBSERVATIONS. MID LEVEL RIDGING BUILDING ACROSS THE GREAT BASIN THIS AFTERNOON WILL SLOWLY TRANSLATE EASTWARD THROUGH THE REMAINDER OF THE WEEK. AS THIS RIDGE AXIS SLIDES EAST OF THE FORECAST AREA THURSDAY INCREASING SOUTHWESTERLY FLOW ALOFT COUPLED WITH A SOUTHERLY GRADIENT SHOULD KEEP MOST VALLEY LOCATIONS FAIRLY WELL MIXED.