Aikyam-Lab/Synoptic-Bench huggingface dataset:
303 AM CST FRI MAR 4 2016 THE UPPER TROUGH THAT BROUGHT PRECIP TO THE AREA YESTERDAY IS EAST OF ALABAMA AS OF 08Z WITH A LIGHT NORTHERLY FLOW IN ITS WAKE. THEY ARE STILL HOVERING IN THE LOWER TO MID 40S AND WILL NOT CHANGE MUCH THROUGH THE REST OF THE NIGHT. WHICH ARE IN THE LOWER TO MID 50S. THE CIRRUS CLOUDS CURRENTLY RIDING ALONG THE UPSTREAM RIDGE MAY IMPACT THE AREA TODAY BUT WILL DISSIPATE AS THE RIDGE FLATTENS THIS EVENING. LOWS TONIGHT ARE CURRENTLY FORECAST IN THE LOWER TO MIDDLE 30S AND THAT IS BASED ON THE FACT THAT THE CLOUDS WILL CLEAR OUT BY MIDNIGHT.
A SURFACE PRESSURE TROUGH WILL STRENGTHEN IN THE LEE OF THE ROCKIES WHICH WILL LEAD TO BREEZY SOUTH TO SOUTHWEST WINDS LOCALLY. ANOTHER COLD FRONT WILL BEGIN TO PUSH ITS WAY THROUGH THE REGION BEGINNING THIS EVENING.
TROUGH AXIS STILL EXTENDS WEST WITH WEAK RETURNS OVER SOUTHWEST IDAHO THUS HAVE LITTLE CONFIDENCE IN BEING ABLE TO COMPLETELY REMOVE PRECIP FROM REMAINDER OF OVERNIGHT FORECAST. THUS WEAKENED POPS ONLY SLIGHTLY AND MAINLY THROUGH THE SNAKE PLAIN AND CENTRAL MTNS WHERE TROUGH AXIS ALREADY MOVING THROUGH. SATELLITE SHOWS SOME CLEARING BEHIND TROUGH AXIS IN THE CENTRAL MTNS THUS DROPPED SKY COVER THERE SLIGHTLY OVERNIGHT AS WELL. LIMITED FORCING WITH THIS BAND FOR A SLIGHT CHANCE OF PRECIPITATION IN THE LOWER VALLEYS AND A CHANCE IN THE MOUNTAINS.
THE COLD FRONT LOOKS TO BE DRAPED ACROSS NORTHERN WYOMING AT THIS HOUR AND SHOULD CONTINUE TO ADVANCE SOUTHEASTWARD THROUGH TODAY AND ACROSS OUR EASTERN PLAINS BEGINNING AROUND SUNRISE. TEMPS WILL BE COOLER BEHIND THE FRONT AND WITH LESS WIND IN THE LATE AFTERNOON.
This along with mid level thermal ridging will boost temperatures well above normal this afternoon.
1230 AM EST FRI MAR 4 2016 A LOW PRESSURE SYSTEM WILL CROSS THE REGION TONIGHT. COOLER AND DRIER AIR WILL BUILD INTO THE REGION FRIDAY INTO THE WEEKEND. AN UPPER LEVEL SHORT WAVE TROUGH OVER ALABAMA THIS EVENING WILL CONTINUE TO MOVE EAST ACROSS THE SOUTHEASTERN STATES OVERNIGHT. AS THE UPPER LEVEL TROUGH MOVES TO OUR EAST RAIN IS EXPECTED TO END FROM WEST TO EAST.
WITH HIGH PRESSURE BRINGING BACK DRY WEATHER BY AFTERNOON.
HIGH TEMPS WILL BE WARMER IN THE EAST DUE TO A LONGER PERIOD OF SUNSHINE. DRY MID LEVEL AIR WILL THEN SPREAD EWD ACROSS SRN WI WITH DRIZZLE OR FREEZING DRIZZLE THEN EXPECTED THE REMAINDER OF THE NIGHT. THE IMPACT OF THE FREEZING DRIZZLE WILL PROBABLY BE SMALL SINCE TEMPS WILL BE NEAR THE FREEZING MARK AND ROADS WILL EITHER BE TREATED OR ALREADY HAVE SOME SNOW ON THEM. 2-3 INCHES FORECAST OVER THE NRN CWA TO LESS THAN AN INCH WEST AND SOUTH OF KMSN WHERE TEMPS WILL BE WARMER AND LESS LIFT AND QPF IS EXPECTED.
CURRENT WATER VAPOR IMAGERY AND RAP UPPER AIR ANALYSIS INDICATES A TROUGH MOVING ACROSS THE SOUTHEASTERN U. A COLD FRONT IS WELL TO THE SOUTH INTO THE NORTHERN GULF OF MEXICO WITH HIGH PRESSURE MOVING INTO THE REGION. THE LATEST RAP INDICATES A TROUGH AT 850 MB THAT WILL KEEP SPRINKLES/DRIZZLE/FLURRIES ACROSS MUCH OF THE AREA THROUGHOUT THE EARLY MORNING HOURS. MODEL SOUNDINGS INDICATE THAT THE LOWEST 100- 200 MB OF THE ATMOSPHERE IS SATURATED WITH PW VALUES OF AROUND 0. THE GOOD NEWS IS THAT MOST OF THE LOCATIONS OUTSIDE OF THE HIGHER TERRAIN ARE ABOVE FREEZING AND ARE FORECAST TO REMAIN THAT WAY THROUGHOUT THE DAY. PW VALUES WILL DROP DOWN INTO THE QUARTER INCH RANGE WITH THE LOW LEVEL MOISTURE BECOMING MORE SHALLOW.
IT IS WARM AND SEASONABLY HUMID ALONG THE ISLAND CHAIN WITH TEMPERATURES IN THE MID 70S AND DEWPOINTS IN THE LOWER 70S. LOW PRESSURE WILL CONTINUE TO STRENGTHEN ALONG THE CAROLINA COAST EARLY THIS MORNING.
1117 PM CST THU MAR 3 2016 MAIN FORECAST CONCERN/CHALLENGE OVER THE NEXT 24 HOURS WILL BE BREEZY CONDITIONS ON FRIDAY FOLLOWING THE PASSAGE OF A SURFACE PRESSURE TROUGH FRIDAY MORNING. BREAKDOWN OF THE UPPER LEVEL RIDGE OVER THE INTERMOUNTAIN WEST WILL COMMENCE THROUGHOUT THE NIGHTTIME HOURS. AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. WHICH COULD POTENTIALLY KEEP HIGH TEMPERATURES SLIGHTLY COOLER.
359 AM CST FRI MAR 4 2016 AT H5 CLOSED LOW OVER GULF OF ALASKA WITH HEIGHT RISES INTO WESTERN CANADA. CLOSED LOW OVER THE NORTHEAST CONUS WITH STRONG WAVE MOVING ACROSS THE EASTERN CONUS FROM THE GREAT LAKES TO FLORIDA. AS A LONG WAVE TROUGH DEVELOPS ALONG THE WEST COAST.
CIRRUS CLUTTERS THE UPPER RIDGE ACROSS THE WESTERN STATES.
1102 PM EST THU MAR 3 2016 AN AREA OF LOW PRESSURE WILL MOVE OFF TO THE EAST TONIGHT. WEAK HIGH PRESSURE WILL BUILD IN FOR FRIDAY.
A DIRTY RIDGE OF HIGH PRESSURE IS BUILDING TO OUR WEST. WITH A FEW HIGH CLOUDS SPILLING OVER THIS RIDGE AND INTO SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS. AS THE GUSTY NORTHWEST WINDS HAVE DECOUPLED AND TEMPERATURES ARE RUNNING 5 TO 11 DEGREES COOLER THAN THIS TIME LAST NIGHT. BELIEVE OUR MORNING LOWS TOMORROW WILL BE 10 TO 15 DEGREES COOLER THAN THIS MORNING. THE EXTENDED MODELS CONTINUE TO SHOW A DEEP TROUGH OF LOW PRESSURE DIGGING INTO NORTHERN MEXICO AND TAPPING INTO SOME SUBTROPICAL MOISTURE.
1245 AM EST FRI MAR 4 2016 COLD HIGH PRESSURE IN PLACE WILL KEEP TEMPERATURES COLD THE REST OF TODAY AND OVERNIGHT. HIGH PRESSURE WILL THEN RETURN FOR THE WEEKEND INTO THE BEGINNING OF THE WEEK. LATEST SURFACE OBSERVATIONS SHOWING TEMPERATURES RUNNING A BIT WARMER THAN PREVIOUS FORECAST. BUT WILL SEE SOME CLOUDS ACROSS OUR SOUTHERN ZONES AS A LOW PRESSURE SYSTEM PASSES WELL OFF THE COAST OF NEW ENGLAND ON FRIDAY. TEMPERATURES ON FRIDAY WILL BE WARMER THAN TODAY. THE WEEKEND SHOULD BE FAIRLY BENIGN AS HIGH PRESSURE DOMINATES THE FORECAST FOR THE REST WEEK HEADED INTO THE WEEKEND.
DEWPOINT DEPRESSIONS ARE LOW AND WITH WEAK HIGH PRESSURE BUILDING IN WILL GO AHEAD AND ADD PATCHY FOG AREAWIDE. WITH THE HIGHEST CONCENTRATION OF LIGHTNING OCCURRING JUST SOUTH OF THE CWA.
The mid to upper level flow pattern will gradually amplify over the next several days, with upper level troughing gradually developing over the western United States. This will lead to lee troughing and warmer temperatures in general. Lee troughing and resultant south winds are expected to result in low level moisture return from the Gulf of Mexico into the southern and central plains.
FOR 06Z AVIATION DISCUSSION BELOW TONIGHT WILL BE QUIET AS WEAK HIGH PRESSURE MOVES OVERHEAD. CLOUD COVER WILL SLOWLY ERODE WITH TEMPERATURES WILL LIKELY FALLING INTO THE LOWER TEENS IN WC WI AS SKIES CLR. TEMPERATURES WILL HOLD STEADY IN THE LOW TO MID 30S. DUE TO TEMPERATURES NEAR OR SLIGHTLY ABOVE FREEZING ONCE THE PRECIPITATION STARTS. HIGHEST TOTALS OF 1-2 INCHES WILL OCCUR IN WC WI WHERE NO MIXTURE OF RAIN IS EXPECTED AND TEMPERATURES WILL BE CLOSER TO FREEZING.
HOWEVER SOUNDINGS REMAIN FAIRLY DRY IN THE LOWER LEVELS. HIGH PRESSURE WILL PUSH SOUTH INTO IOWA FOR BEGINNING OF PERIOD.
332 AM CST FRI MAR 4 2016 High pressure will progress across IL today from NW to SE. Northeast areas will on the lower end of our temp range today, with around 40 for highs near Danville.
AND A FEW HOUR OF DRIZZLE/FREEZING DRIZZLE IS DEFINITELY POSSIBLE. SOME LIGHT ICING WHERE FREEZING DRIZZLE IS EXPERIENCED FOR A FEW HOURS THIS EVENING CAN/T BE RULED OUT EITHER.
949 PM MST THU MAR 3 2016 TONIGHT HIGH PRESSURE AND DRY CONDITIONS WILL PREVAIL. THE 500 MB RIDGELINE WILL MIGRATE OVER AND EAST OF THE CWA BY THE END OF THE NIGHT. THE RIDGE IS DIRTY WITH HIGH CLOUDS AND THESE WILL SLOWLY THICKEN TONIGHT AS WELL. THESE CLOUDS WILL HELP LOW TEMPS STAY 2 TO 4 DEGREES WARMER TONIGHT COMPARED TO THIS MORNING'S LOWS. BUT HIGH CLOUDS AHEAD OF THE NEXT TROUGH WILL ALREADY BE MOVING INTO EASTERN UTAH FRIDAY NIGHT.
1210 AM EST FRI MAR 4 2016 AVIATION AN AREA OF HIGH PRESSURE OVER SOUTHERN ILLINOIS WILL TRACK UP THE OHIO VALLEY TONIGHT AND FRIDAY.
COLD FRONT THROUGH SOUTH TEXAS LATE THIS EVENING AND WILL CONTINUE OFFSHORE OVERNIGHT. DRIER AND COOLER AIR WILL FILTER INTO THE REGION OVERNIGHT AS HIGH PRESSURE SETTLES FURTHER SOUTH. TONIGHT WILL BE MUCH COOLER WITH CAA AND LIGHT WINDS DROPPING LOWS INTO THE LOW TO MID 50S ACROSS MOST LOCATIONS OVERNIGHT. TOMORROW WILL BE A GOOD BIT COOLER THAN TODAY.
355 AM CST FRI MAR 4 2016 SPOTTY LIGHT FREEZING RAIN HAS BEEN OCCURRING OVER SOUTHWEST ND AND NORTHWEST SD OVER THE PAST FEW HOURS AND IS JUST NOW MOVING INTO NORTH CENTRAL SD. WILL CONTINUE MENTION OF LIGHT FREEZING RAIN OVER THE NORTHERN CWA OVER THE NEXT SEVERAL HOURS AS ACTIVITY CONTINUES TO PUSH EAST. LOOKING FOR HIGHS IN THE 40S AND 50S AND TRIED TO KEEP THE SNOW PACK AREAS A BIT COOLER THAN SURROUNDINGS. HIGHS ARE ACTUALLY A BIT TRICKY TODAY AS MODELS ARE TRYING TO GENERATE SOME CLOUD COVER ON THE BACK SIDE OF THE LOW PRESSURE OVER THE EASTERN CWA. THE WEEKEND IS LOOKING DRY AND VERY PLEASANT AS EVEN WARMER TEMPS MOVE IN.
1241 AM EST FRI MAR 4 2016 SNOW IS EXPECTED WITH LOW PRESSURE TONIGHT.
A WEAK RIDGE OF HIGH PRESSURE WAS LOCATED OVER CENTRAL TEXAS. THE RIDGE WILL MOVE EAST TODAY AND PRESSURES HAVE BEGUN TO FALL OVER EASTERN NEW MEXICO.
ESPECIALLY FOR LOCATIONS SOUTH OF THE ADVANCING COLD FRONT. RAOB SOUNDINGS SOUTH OF KANSAS SHOW VERY DRY AIR IN THE LOW LEVELS WHICH SHOULD RESULT IN SURFACE DEWPOINTS MIXING OUT SOME.
351 AM EST FRI MAR 4 2016 WEAK FRONTAL BOUNDARY SAGGING SOUTHWARD ACROSS THE REGION THIS MORNING WITH HIGH PRESSURE BUILDING ACROSS OHIO IN ITS WAKE.
1159 PM EST THU MAR 3 2016 LOW PRESSURE WILL WEAKEN AS IT MOVES THROUGH THE LOWER OHIO VALLEY TONIGHT. HIGH PRESSURE OVER THE WESTERN GREAT LAKES AND UPPER MIDWEST WILL BUILD EAST INTO THE REGION ON FRIDAY.
HIGH PRESSURE ALOFT WILL REMAIN ACROSS THE GREAT BASIN THROUGH FRIDAY.
1134 PM CST THU MAR 3 2016 THE COLD FRONT HAS PUSHED WELL SOUTH OF THE TERMINALS LATE THIS EVENING AND WAS ACTUALLY MOVING OFF THE SOUTHEAST LOUISIANA COAST.
TONIGHT THROUGH FRIDAY IMAGERY SHOWS UPR LVL RIDGING ACROSS THE CNTRL ROCKIES STATES. WEAK LOW P TROF ACROSS ERN WY AND A DEVELOPING BUT WEAK COLD FRONT JUST WEST OF WY OVR WRN MT AND CNTRL ID. UPR LVL RIDGING HAS RETURNED ONCE AGAIN. THE RIDGE WILL BEGIN TO FLATTEN AS THE SW MOVES THRU WHILE SOME MAINLY MID/UPR MOISTURE MOVES INTO THE WRN MOUNTAINS THIS EVENING THRU THE OVERNIGHT PERIOD. AND THE CODY FOOTHILLS SEEING A BRIEF PERIOD THIS EVENING WHERE WEST WIND COULD O0CCASIONALLY GUST GREATER THAN 45 KTS BETWEEN 8PM AND 2AM BEFORE DECREASING AS THE UPR WAVE QUICKLY DISRUPTS THE SFC TROF IN PLACE OVER THE BIGHORN BASIN. A BIT COOLER THAN THURSDAY.
1253 AM EST FRI MAR 4 2016 AN AREA OF LOW PRESSURE WILL MOVE OFF TO THE EAST TONIGHT. WEAK HIGH PRESSURE WILL BUILD IN FOR FRIDAY.
WIND SPEEDS IN THE LOWEST 1500 FEET AGL WILL BECOME 30 TO 50KTS OUT OF THE SOUTHWEST OVER THE NEXT FEW HOURS. A COLD FRONT WILL MOVE INTO THE OKLAHOMA PANHANDLE TOMORROW AFTERNOON.
A FEW SHOWERS CONTINUE TO LINGER ACROSS CENTRAL GA AS THE 500MB TROUGH MOVES OFFSHORE THE SOUTHEAST COAST. BUFFER SOUNDINGS DO SHOW SOME IMPROVEMENT WITH CIGS AS THE WINDS SHIFT TO THE NW BEHIND THE TROUGH AT THE SURFACE AND ALOFT.
OTHERWISE MOSTLY SUNNY AND MILD TODAY UNDER PERSISTENT UPPER RIDGE.
1229 AM EST FRI MAR 4 2016 COLD HIGH PRESSURE IN PLACE WILL KEEP TEMPERATURES COLD THE REST OF TODAY AND OVERNIGHT. HIGH PRESSURE WILL THEN RETURN FOR THE WEEKEND INTO THE BEGINNING OF THE WEEK. BUT WILL SEE SOME CLOUDS ACROSS OUR SOUTHERN ZONES AS A LOW PRESSURE SYSTEM PASSES WELL OFF THE COAST OF NEW ENGLAND ON FRIDAY. TEMPERATURES ON FRIDAY WILL BE WARMER THAN TODAY. THE WEEKEND SHOULD BE FAIRLY BENIGN AS HIGH PRESSURE DOMINATES THE FORECAST FOR THE REST WEEK HEADED INTO THE WEEKEND.
319 AM CST FRI MAR 4 2016 A cool and quiet night is underway early this morning, with high pressure moving through the mid Mississippi Valley.
927 PM MST THU MAR 3 2016 DIRTY UPPER RIDGE MAKING SLOW EASTWARD PROGRESS ACROSS COLORADO. MODELS STILL SHOWING A SHALLOW COLD FRONT SLIDING SOUTH ACROSS NORTHEAST COLORADO TOMORROW MORNING. NOT MUCH MOISTURE WITH THIS SURGE OF SLIGHTLY COOLER AIR. UPPER LEVEL MOISTURE COMING UP AND OVER THE UPPER RIDGE MOVING INTO COLORADO. WILL GO WITH SOME MINOR POPS IN THE HIGH MOUNTAINS ON FRIDAY. FRIDAY'S HIGHS ARE MAYBE 1-3 COLDER WITH A SLIGHTLY COOLER AIRMASS TO MOVE IN WITH THE UPSLOPE. UPPER RIDGE WILL MOVE OVER COLORADO THIS WEEKEND WITH FLOW ALOFT BECOMING LIGHT SOUTHWESTERLY.
AN AREA OF LOW PRESSURE WILL DEEPEN AS IT TRACKS QUICKLY NORTHEAST UP THE CAROLINA COAST EARLY THIS MORNING AND THEN OFF THE MID-ATLANTIC COAST THIS AFTERNOON.
350 AM CST FRI MAR 4 2016 High pressure will drift southeast into the OH Valley today.
243 AM EST FRI MAR 4 2016 ARCTIC HIGH PRESSURE WILL CREST OVER THE AREA LATE TONIGHT INTO FRIDAY. LOW PRESSURE MOVING OFF THE MID ATLANTIC STATES WILL PASS WELL SOUTH OF THE AREA FRIDAY INTO FRIDAY NIGHT. TEMPS SHOULD RECOVER TO AFTN HIGHS ABOUT 10 DEG WARMER THAN YSTDY WITH NRN PTNS OF THE FA REMAINING MCLR. CLDS WILL BEGIN TO DECREASE ACROSS E CNTRL AND DOWNEAST PTNS OF THE FA LATE TNGT AS THE LOW TRACKS TO S OF ERN NOVA SCOTIA. WHATS LEFT OF THE SFC HI WILL CONT RIDGING ACROSS THE N TNGT ALLOWING ONE MORE NGT OF RADIATIONAL COOLING AND LOW TEMPS WELL BELOW ZERO OVR BROAD VLY AREAS. HIGH PRESSURE DOMINATES WITH SLOWLY MODERATING TEMPERATURES.
THESE SHOWERS WILL GRADUALLY END AFTER MIDNIGHT AS THE SHORT WAVE MOVES AWAY FROM THE AREA AND THE UPPER RIDGE REBUILDS OVER WESTERN MONTANA. SKIES HAVE BEGUN TO CLEAR FROM THE WEST AS HIGH PRESSURE BUILDS BACK IN OVER THE AREA.
A large area of stratus behind the associated cold front continues to build into the area, and this should lead to a cloudy start to the day. Exactly how fast this process occurs may have an impact on the high temperatures, but we stayed close to a consensus approach for now with highs mainly in the mid-upper 60s.
1001 PM EST WED NOV 18 2015 A CROSSING COLD FRONT WILL BRING SHOWERS TONIGHT.
CHATTANOOGA AIRPORT, TN 49 65 41 60 / 50 10 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 50 62 38 56 / 90 10 0 0 OAK RIDGE, TN 51 62 38 56 / 80 10 0 0 TRI CITIES AIRPORT, TN 50 62 37 55 / 100 10 0 0 NC.
WEAK COLD FRONT WILL TURN WINDS NORTHERLY THURSDAY NIGHT AND ANOTHER ROUND OF COLD AIR ADVECTION.
543 PM MST WED NOV 18 2015 UPDATED TO DROP THE HIGH WIND WARNING FOR ALL BUT FALLON AND CARTER COUNTIES. BUT EVEN THESE GUSTS SHOULD STAY UNDER 50 MPH SO HAVE CANCELLED THE HIGH WIND WARNING FOR MOST LOCATIONS. WEAK COLD FRONT WILL TURN WINDS NORTHERLY THURSDAY NIGHT AND ANOTHER ROUND OF COLD AIR ADVECTION.
THE WINDS HAVE HELPED PUSH TEMPS UP WELL INTO THE 60S FOR MOST LOCATIONS AND WE/LL LIKELY SEE A FEW HIGHS IN THE LOWER 70S IN THE SRN AREAS BEFORE TEMPS START COMING DOWN AROUND 5 PM OR SO. A COLD FRONT WILL ALSO MOVE THROUGH THE AREA OVERNIGHT. HIGHS ON THURSDAY WILL BE MAINLY IN THE 50S TO LOWER 60S DUE TO THE COOLER AIR BEHIND THE FRONT.
707 PM EST WED NOV 18 2015 MODERATE RAIN IS EXPECTED OVERNIGHT BEFORE A COLD FRONT PUSHES ACROSS PENNSYLVANIA ON THURSDAY.
/ISSUED 349 PM CST WED NOV 18 2015/ A COLD FRONT WILL MOVE ACROSS THE FORECAST AREA THIS EVENING AND OVERNIGHT.
1011 PM EST WED NOV 18 2015 A COLD FRONT WILL MOVE ACROSS THE REGION OVERNIGHT.
Also tweaked temperature curve tonight as observations have shown temperatures actually rising just out ahead of the cold front. Extrapolation of current clouds trends suggest that the southern end of the low clouds will be exiting our northern counties this evening, but there is a fair amount of mid and high level clouds that will quickly move in behind this "clearing". Generally went a degree or so above the warmest guidance, with the exception of the eastern Ozarks where decoupling could occur in some of the low-lying/sheltered areas.
A SURFACE COLD FRONT MOVED ACROSS THE PLAINS LATE IN THE AFTERNOON WHICH HAS SHIFTED THE BOUNDARY LAYER FLOW TO THE NORTHAND BROUGHT THE THREAT OF STRONG DOWNSLOPE WINDS TO AN END. MOISTURE TRAPPED OVER THE MOUNTAINS WILL CONTINUE PRODUCING LIGHT SNOW SHOWERS OVER THE HIGHER RIDGES THROUGH THE NIGHT. THEN WINDS WILL DROP OFF AS THE HIGH PRESSURE BUILDS INTO NORTHEAST COLORADO. WITH THE HIGH BUILDING IN. BUT SOMEWHAT COOLER TEMPERATURES WITH SOME LINGERING SNOW SHOWERS IN THE MOUNTAINS.
NO CHANGE TO THE HIGH WIND WARNING NEEDED AT THIS TIME.
942 PM EST WED NOV 18 2015 MODERATE RAIN IS EXPECTED OVERNIGHT BEFORE A COLD FRONT PUSHES ACROSS PENNSYLVANIA ON THURSDAY.
300 PM PST WED NOV 18 2015 MAINLY CLEAR SKIES AND A SLIGHT WARMING TREND ARE EXPECTED THROUGH THE REST OF THIS WEEK AND INTO THE WEEKEND DUE TO HIGH PRESSURE. A FAIRLY STRONG UPPER LEVEL RIDGE OF HIGH PRESSURE WILL REMAIN ANCHORED OVER THE EASTERN PACIFIC DURING THE NEXT 72 HRS WHILE A DRY NORTHWEST FLOW ALOFT RESIDES OVER THE GOLDEN STATE. A SHORT WAVE TROUGH IN THE NORTHERN BRANCH WILL FLATTEN THE EPAC RIDGE.
BILLINGS WRIGHT A SECONDARY UPPER WAVE WILL DIVE INTO THE BASE OF THE TROUGH OVER THE CENTRAL CONUS. A SECONDARY FRONT WILL MOVE THROUGH TONIGHT BEFORE HIGH PRESSURE BUILDS IN THURSDAY. HIGHS WILL BE SLIGHTLY COOLER ON THURSDAY.
637 PM EST WED NOV 18 2015 A CROSSING COLD FRONT WILL BRING SHOWERS TONIGHT.
603 PM CST WED NOV 18 2015 STRONG PACIFIC COLD FRONT MOVING ACROSS THE AREA THIS AFTERNOON. IN THE WAKE OF THE COLD FRONT. THE CENTER OF THE HIGH IS OFF TO THE SW AND MODELS KEEPS WINDS AROUND 10 MPH. TOMORROW THE HIGH WILL SHIFT TO THE SOUTH WITH WINDS SLOWING TURNING MORE TO THE WEST DURING THE DAY. COOLER AIR IN PLACE WITH HIGHS STRUGGLING TO GET INTO THE LOWER 40S.
A WEAK COLD FRONT IS APPROACHING FROM THE NORTHWEST WHILE WEAK HIGH PRESSURE SITS OVER THE LOWER MISSISSIPPI VALLEY. TEMPERATURES WILL COOL DOWN TO NEAR NORMAL LEVELS WITH LOWS THURSDAY MORNING IN THE LOW TO MID 40S. A SECOND COLD FRONT WILL PUSH THROUGH THE REGION ON THURSDAY. HIGH PRESSURE WILL SETTLE INTO THE REGION THURSDAY NIGHT BRINGING COLDER AIR INTO THE FORECAST AREA.
An upper level trough is currently spreading east across the central U. Gusty southwesterly winds and cooler conditions are occurring across the area this afternoon as the system passes through.
HAVE TRENDED POPS DOWN IN THE EASTERN HIGHLANDS THOUGH KEPT SOME MENTION OF SHOWERS UNDER THE INFLUENCE OF THE WESTERLY FLOW INTO THE HIGHER TERRAIN.
509 PM MST WED NOV 18 2015 WINDS ARE DECREASING IN NORTHEASTERN WYOMING AND THE BLACK HILLS SO HAVE ENDED THE HIGH WIND WARNING OVER THOSE AREAS. THIS EVENING THROUGH THURSDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTHERN MANITOBA. WITH COLD FRONT ACROSS THE CENTRAL DAKOTAS. ANOTHER AREA OF LOW PRESSURE IS LOCATED ACROSS NORTHERN MN. VERY TIGHT PRESSURE GRADIENT IN PLACE BEHIND THE LOWS ACROSS NORTHERN AND CENTRAL PLAINS. UPPER LEVEL ANALYSIS SHOWS LOW PRESSURE OVER WESTERN WI AND CENTRAL SK. WINDS WILL BECOME EAST- SOUTHEASTERLY AS LOW PRESSURE MOVES SOUTHEAST ACROSS WY AND INTO THE CENTRAL HIGH PLAINS.
635 PM EST WED NOV 18 2015 A LOW PRESSURE SYSTEM OVER THE WESTERN GREAT LAKES WILL PUSH A COLD FRONT THROUGH OUR AREA TOMORROW BRING WINDY CONDITIONS WITH RAIN SHOWERS. COOLER AIR WILL FOLLOW THE FRONT FOR THE WEEKEND WITH RAIN AND SNOW SHOWERS. TGT GRADIENT WILL KEEP THE LOW CLDS AND WINDS UP OVRNGT. HIGHEST GUSTS WILL CONT TO BE OVER THE HIGHER RIDGES OF THE FINGER LAKES. AREA REMAINS IN A BROAD UPR TROF CNTRD OVER CNTRL LAKES.
601 PM EST WED NOV 18 2015 WIDESPREAD SHOWERS AND A FEW THUNDERSTORMS WILL OCCUR AHEAD OF A COLD FRONT TONIGHT. MILD TEMPERATURES THROUGH THURSDAY AFTERNOON THEN COOLER BUT DRY WEATHER THROUGH THE WEEKEND. THE COLD FRONT IN THE TENNESSEE VALLEY WILL MOVE SLOWLY TOWARD THE REGION. WIDESPREAD CONVECTION AHEAD OF THE COLD FRONT IN ALABAMA IN REGION OF STRONG LOW LEVEL CONVERGENCE/DEEP AND STRONG MOISTURE FLUX OFF GULF OF MEXICO. NAM MODEL CONTINUES TO SUGGEST A SECONDARY WEAKER CONVECTIVE LINE ALONG COLD FRONT IN THE EARLY AFTERNOON. COLD FRONT MOVES OFFSHORE THURSDAY NIGHT WITH HIGH PRESSURE BUILDING IN FROM THE WEST.
WEAK COLD FRONT WILL CAUSE SURFACE WINDS TO VEER TO NORTHEAST AND INCREASE IN SPEED THIS EVENING. AS A WEAK COLD FRONT MOVES THROUGH THE AREA TONIGHT WINDS WILL TURN OUT OF THE NORTH AGAIN.
COOLER TEMPERATURES. AFTER A DAY WHICH SAW HIGHS IN THE 60S ACROSS THE LOWER DESERTS OVER SOUTH-CENTRAL AZ. ALONG WITH THE HIGH CLOUDINESS AND SLIGHTLY WARMER AIR ALOFT. EXPECTED LOWS TONIGHT WILL LIKELY END UP A BIT WARMER THAN WHAT WE SAW LAST NIGHT. DRY NORTHWESTERLY UPPER LEVEL FLOW WILL CONTINUE INTO THE WEEKEND WITH WARMING IN THE MID-LEVELS FINALLY TRANSLATING TO WARMER SURFACE TEMPERATURES OVER THE NEXT COUPLE DAYS. SKIES WILL GENERALLY REMAIN CLEAR THROUGH THE WEEKEND EXCEPT FOR OCCASIONAL THIN CIRRUS SPILLING OVER THE RIDGE ORIENTED TO OUR WEST.
TEMPERATURES WILL COOL DOWN TO NEAR NORMAL LEVELS WITH LOWS THURSDAY MORNING IN THE LOW TO MID 40S. A SECOND COLD FRONT WILL PUSH THROUGH THE REGION ON THURSDAY. HIGH PRESSURE WILL SETTLE INTO THE REGION THURSDAY NIGHT BRINGING COLDER AIR INTO THE FORECAST AREA.
634 PM MST WED NOV 18 2015 WINDS HAVE DIMINISHED BELOW HIGH WIND CRITERIA FOR ALL BUT FAR NORTHWESTERN SOUTH DAKOTA SO HAVE REPLACED THE HIGH WIND WARNING FOR MOST AREAS WITH A WIND ADVISORY FOR MOST OF WESTERN AND SOUTH CENTRAL SOUTH DAKOTA. WINDS ARE DECREASING IN NORTHEASTERN WYOMING AND THE BLACK HILLS SO HAVE ENDED THE HIGH WIND WARNING OVER THOSE AREAS. THIS EVENING THROUGH THURSDAY NIGHT CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER SOUTHERN MANITOBA. WITH COLD FRONT ACROSS THE CENTRAL DAKOTAS. ANOTHER AREA OF LOW PRESSURE IS LOCATED ACROSS NORTHERN MN. VERY TIGHT PRESSURE GRADIENT IN PLACE BEHIND THE LOWS ACROSS NORTHERN AND CENTRAL PLAINS. UPPER LEVEL ANALYSIS SHOWS LOW PRESSURE OVER WESTERN WI AND CENTRAL SK. WINDS WILL BECOME EAST- SOUTHEASTERLY AS LOW PRESSURE MOVES SOUTHEAST ACROSS WY AND INTO THE CENTRAL HIGH PLAINS.
SOME ACCUMULATION OF AT LEAST 1-2 INCHES SHOULD EXTEND SOUTHWARD TO AT LEAST THE HIGHWAY 2 CORRIDOR. AND THE ADVISORY MAY NEED TO BE EVENTUALLY EXTENDED INTO THE HIGHWAY 61 CORRIDOR.
THIS LIKELY IS DUE TO INCREASED WINDS SPEEDS MIXING WARMER AIR JUST ABOVE THE BOUNDARY LAYER TO THE SURFACE. MOST LOCATIONS LOW TEMPERATURES ARE SLIGHTLY WARMER THAN THE PREVIOUS FORECAST. /ISSUED 349 PM CST WED NOV 18 2015/ A COLD FRONT WILL MOVE ACROSS THE FORECAST AREA THIS EVENING AND OVERNIGHT.
Extrapolation of current clouds trends suggest that the southern end of the low clouds will be exiting our northern counties this evening, but there is a fair amount of mid and high level clouds that will quickly move in behind this "clearing". Generally went a degree or so above the warmest guidance, with the exception of the eastern Ozarks where decoupling could occur in some of the low-lying/sheltered areas.
LOWS WILL BE IN THE LOWER AND MIDDLE 40S. WITH THE BOUNDARY LAYER TROF/FRONT MOVING SLOWLY EASTWARD THE FORECAST HAS BEEN EXTREMELY CHALLENGING. COLD FRONT IS NOW ACROSS THE IN/IL STATE LINE WITH SIGNIFICANTLY DRIER AND COOLER AIR. THIS IS ALSO ASSOCIATED WITH THE LOW LEVEL JET AND WE ARE SEEING CONVECTIVELY DRIVEN WIND GUSTS AHEAD OF THE FINE LINE. EXPECT TO SEE THE WINDS INCREASE AS THE AFOREMENTIONED COLD FRONT MOVES THROUGH OVERNIGHT. THE BEGINNING OF THE PERIOD AN UPPER TROF WILL TRAVERSE THE GTLKS REGION THU TAKING ON A NEG TILT FRI AS IT LIFTS NE OF THE REGION.
QPF AMOUNTS HAVE BEEN ON THE LOW SIDE WITH TOWER SNOTEL INDICATING BETWEEN 0. GUSTY WINDS HAVE DEVELOPED OVER MOFFAT AND WESTERN ROUTT COUNTY AS NOTED BY THE HIGH RESOLUTION MODELS.
A COLD FRONT IS CURRENTLY MOVING INTO THE WESTERN FLORIDA PANHANDLE.
909 PM EST WED NOV 18 2015 A LOW PRESSURE SYSTEM OVER THE WESTERN GREAT LAKES WILL PUSH A COLD FRONT THROUGH OUR AREA TOMORROW, BRINGING WINDY CONDITIONS WITH RAIN SHOWERS. COOLER AIR WILL FOLLOW THE FRONT FOR THE WEEKEND WITH RAIN AND SNOW SHOWERS. TGT GRADIENT WILL KEEP THE LOW CLDS AND WINDS UP OVRNGT. HIGHEST GUSTS WILL CONT TO BE OVER THE HIGHER RIDGES OF THE FINGER LAKES. AREA REMAINS IN A BROAD UPR TROF CNTRD OVER CNTRL LAKES.
A weak cold front will move across the area overnight, shifting winds to the north and northeast for Thursday. /issued 352 PM CST WED NOV 18 2015/ (Tonight and Thursday) Northwest flow is in place aloft as an upper level low moves north through eastern MN/western WI this afternoon. However, expect temperatures to be just a few degrees warmer than last night, so will not issue another Frost Advisory tonight. Although a cold front will move into the area early tomorrow morning, temperatures will still be relatively mild with highs from the lower 60s north of I-20 to near 70s along and south of the I-10 corridor.