Aikyam-Lab/Synoptic-Bench huggingface dataset:
754 PM EDT Fri Sep 15 2017 High pressure will provide our region with beautiful weather through the weekend.
1006 PM EDT Fri Sep 15 2017 A large 500 hPa ridge with dominate our weather over the next 8 days. The only fly in the ointment is the trough and low pressure associated with Jose.
918 PM CDT Fri Sep 15 2017 Wx map shows weak high pressure ridging across the Gulf, yielding a light southeast flow across the coastal waters, nearly calm inland. Current forecast has this highlighted, and on track.
Evening surface observations indicated dewpoint rebounding to or lingering in the lower 60s in the DTW area. Once that burns off, mostly sunny skies and south winds 5 to 10 mph will bring temperatures into the lower 80s across most of the region by afternoon.
1220 AM EDT Sat Sep 16 2017 Quiet weather will persist through the first part of the weekend as a ridge of high pressure is slow to depart to the east.
1156 PM CDT Fri Sep 15 2017 Developing mean upper level troughing across the western U. More widespread thunderstorms are likely to develop Saturday afternoon along and ahead of a cold front that will be pushing into far eastern Nebraska and southwest Iowa. Storms will likely expand to the south and east across much of the area Saturday night before the cold front eventually stalls somewhere near or just south of I-70.
BASED ON THIS WESTERLY FLOW AND IN AREAS WHERE LITTLE OR NO SNOW COVER WILL EXIST WILL STAY CLOSE OR GO A FEW DEGREE WARMER THAN THE LATEST GUIDANCE. ELSEWHERE WILL GO SEVERAL DEGREES COOLER.
The general warming trend will continue into the weekend, with warmer H85 temps moving in, with the steady westerly and/or southerly component to the surface winds.
NOT SEEING AS MUCH FREEZING RAIN OVER NORTHEAST MISSISSIPPI.
344 PM CST THU MAR 5 2015 SKIES ARE CLEARING RAPIDLY ACROSS SOUTHEAST TEXAS ALLOWING MOST SITES TO REACH INTO THE LOW 40S THIS AFTERNOON. WINDS WILL BEGIN TO EASE THIS EVENING AS HIGH PRESSURE SETTLES INTO THE STATE. NORTHERN LOCATIONS COULD SEE IN EXCESS OF 10 HOURS OF SUBFREEZING TEMPERATURES WITH HIGHS IN THE UPPER 20S.
300 PM CST THU MAR 5 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.
HIGHS IN THE 60S AWAIT US OVER THE WEEKEND EVEN WITH A WEAK COLD FRONT SLATED TO MOVE THROUGH THE PANHANDLES.
THIS EVENING THROUGH FRIDAY NIGHT WATER VAPOR SHOWS LARGE RIDGE OVER THE FAR WRN CONUS. TROF CONTINUES TO CROSS THE WRN DAKOTAS WITH TEMPS WARMING WELL THROUGH THE 30S INTO THE 40S ACRS THE CWFA. UPPER RIDGE EXPECTED TO REMAIN STATIONARY ACROSS THE FAR WRN CONUS THROUGH FRIDAY WITH DRY NW FLOW OVER OUR CWFA. TEMPS WILL WARM EVEN FURTHER ON FRIDAY WITH 850MB TEMPS ABOUT 5C DEGREES OR SO WARMER THAN TODAY.
AN UPPER RIDGE AND HIGH PRESSURE WILL GIVE DRY WEATHER THROUGH THE WEEKEND.
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.
BUT THE HIGHER GUSTS ARE BECOMING MORE ISOLATED. WINTRY PRECIPITATION IS NO LONGER EXPECTED AS THE UPPER TROUGH TO OUR NORTH WEAKENS AND DRY AIR IN THE LOW-LEVELS MOVES IN FROM THE NORTH. UPPER AIR ANALYSIS LAST EVENING SHOWED A TROUGH EXTENDING FROM MINNESOTA TO THE NORTHERN BAJA PENINSULA. AT THE SURFACE THE COLD FRONT HAD MOVED THROUGH OUR CWA AND STRETCHED FROM CORPUS CHRISTI TO LAREDO AND UP THROUGH NORTHERN MEXICO TO THE BIG BEND. A SPLIT WILL DEVELOP IN THE UPPER PATTERN WITH A LOW CUTTING OFF NEAR THE BAJA PENINSULA AND THE NORTHERN PART OF THE TROUGH SWINGING DOWN THROUGH NORTHERN TEXAS TONIGHT. FRIDAY A RIDGE WILL BUILD UP FROM THE SOUTH. COLD AIR WILL SETTLE IN TONIGHT WITH FREEZING TEMPERATURES ACROSS THE ENTIRE CWA.
A large area of high pressure extending from WI through east TX will shift east tonight while pressure falls over the high plains represent the approaching warm air advection.
1252 PM EST THU MAR 5 2015 A WAVE OF LOW PRESSURE WILL TRACK SOUTH OF PENNSYLVANIA BY LATER TODAY AND THIS EVENING.
WHILE HIGH PRESSURE THE SURFACE CONTINUES TO MOVE AWAY. SOUTHERLY WINDS SHOULD KEEP LOWS TONIGHT WARMER THAN LAST NIGHT.
1007 AM MST THU MAR 5 2015 THE WARM-UP BEGINS TODAY AS A LEE-SIDE PRESSURE TROF COMBINES WITH LLVL WAA. A DECOUPLED AIR MASS EAST OF THIS TROF THIS TROF AND CLEAR SKIES/SNOW PACK HAS ALLOWED TEMPS TO FALL BELOW ZERO DOUGLAS- CHADRON. LLVL GRADIENT HAS TIGHTENED WEST OF THE TROF BOOSTING WIND GUSTS 40-50 MPH. MIXING DOWN WARMER TEMPS ALOFT RESULTING IN TEMPS IN THE TEENS. PRESSURE TROF WILL CONTINUE SLIDING EAST THIS MORNING SO WOULD ACTUALLY EXPECT SOME MODERATION BEFORE SUNRISE.
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.
SNOW COVER WILL LIKELY WIND UP BEING THE RESTRAINING FACTOR IN SURFACE TEMPERATURES AS THE AIR OFF THE GROUND CONTINUES TO WARM TO ABOVE FREEZING. WITH AIRMASS CONTINUING TO WARM THE RIDGES AND FOOTHILLS MAY NOT SEE MUCH COOLING. LOW LYING AREAS SHOULD DECOUPLE AND COOL OFF BUT STILL 10-15 DEGREES WARMER THAN THIS MORNING. MADE SOME MINOR ADJUSTMENTS FOR MORE CLOUD COVER THIS AFTERNOON AND MORE WIND IN THE HIGHER MOUNTAINS.
252 PM EST THU MAR 5 2015 A STRONG COLD FRONT WILL MOVE THROUGH THE FORECAST AREA THIS AFTERNOON.
HIGH PRESSURE PROVIDES DRY AND COLD WEATHER FRIDAY. STILL EXPECTING HIGH TEMPS IN THE LOWER TO MID 20S. REMAINS IN A PERSISTENT BUT FLATTER TROUGH ALOFT.
TEMPERATURES WERE RANGING FROM THE LOWER 20S IN SOUTHERN MIDDLE TENNESSEE. AS DRIER AIR ASSOCIATED WITH HIGH PRESSURE MOVES INTO THE FORECAST AREA. EXPECT TEMPS ACROSS THE FORECAST AREA TO WARM ABOVE FREEZING FINALLY BY AROUND 16Z ON FRIDAY. HIGH PRESSURE WILL BE SETTLED ACROSS THE REGION ON FRIDAY.
The line of showers (which is occasionally producing an isolated cloud to ground lightning strike along its path) continues to march steadily eastward this afternoon out ahead of a fairly strong cold front. While this line of showers is relatively thin, the decision to raise PoPs earlier in the day appears to be well justified, and in fact, when all is said and done both final PoPs and QPF may end up being slightly on the low side.
343 PM EST THU MAR 5 2015 A WAVE OF LOW PRESSURE WILL TRACK SOUTH OF PENNSYLVANIA BY LATER TODAY AND THIS EVENING.
221 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.
HIGH PRESSURE WILL BUILD ACROSS THE WESTERN STATES OVER THE COMING DAYS. HIGH PRESSURE WAS BUILDING OVER THE FAR WESTERN UNITED STATES ON THURSDAY WITH A WEAK LOW SPINNING OVER NORTHERN BAJA CALIFORNIA. FOR THE COMING WEEK, HIGH PRESSURE WILL CONTINUE TO SLOWLY BUILD ACROSS THE WESTERN STATES USHERING IN A MILD AIR MASS OF PACIFIC ORIGINS.
1133 AM CST THU MAR 5 2015 HIGH PRESSURE SLIDES ACROSS THE UPPER MISSISSIPPI RIVER VALLEY REGION TODAY PROVIDING UNSEASONABLY COLD TEMPERATURES AND MOSTLY SUNNY SKIES. THE HIGH SLIDES EAST OF THE AREA TONIGHT AS A WEAK TROUGH PUSHES EAST ACROSS THE NORTHERN PLAINS. SOUTHERLY WINDS WILL MAKE IT FEEL EVEN COOLER WITH WIND CHILL VALUES IN THE SINGLE DIGITS TO TEENS BELOW ZERO. HIGH TEMPERATURES ARE EXPECTED TO WARM INTO THE LOWER 30S ON FRIDAY.
BTL HIGH PRESSURE REMAINS FIRMLY ENTRENCHED ALONG THE WEST COAST. THE THERMAL TROUGH THAT BROUGHT MODERATE NORTHERLY WINDS WILL SHIFT INLAND TODAY BUT IS EXPECTED TO REDEVELOP THIS WEEKEND WITH LIGHT TO MODERATE NORTHERLIES RETURNING. THE LARGE SCALE RIDGE CURRENTLY OVER THE PACIFIC NORTHWEST WILL REMAIN IN PLACE FOR SEVERAL MORE DAYS.
WITH LEE TROF/WARM FRONT ACROSS CENTRAL MONTANA/WYOMING. DRY AND WARMER FOR FRIDAY.
FLOW WILL BECOME MORE SOUTHWESTERLY LATE AS UPPER LEVEL LOW OVER BAJA CALIFORNIA BEGINS TO MOVE EASTWARD WITH THE MAIN FLOW.
There could still be some pockets of freezing fog on e slopes of the Davis Mtns, but that too will slowly lift. /ISSUED 338 AM CST Thu Mar 5 2015/ Upper level trough axis approaching the region with precipitation occurring east of the forecast area across central and east Texas. Have also canceled the High Wind Warning for Guadalupe Pass due to recent trends.
Will remain in the freezer today with the Arctic air mass in place and temperatures will struggle to reach the freezing mark. For the KSGF, KJLN, and KBBG TAFS: High pressure will be over the region and will result in clear skies and VFR conditions through Thursday morning. Northerly winds will occur this afternoon as the high slides south then will go light this evening as it settles overhead. The high will then start to slide east overnight resulting in winds becoming southeasterly early Friday morning, and the winds will continue to swing over to the south/southwest and become gusty during the morning hours Friday.
A COLD FRONT WILL MOVE INTO NORTH AND CENTRAL FLORIDA TONIGHT WITH LIGHT AND VARIABLE WINDS FORECAST ACROSS THE REGION STARTING AROUND 03Z.
HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT AND CENTER ITSELF OVER THE AREA BY LATE TONIGHT. WILL CONTINUE AN SPS THROUGH EARLY TOMORROW MORNING ADDRESSING THE SLICK ROADS AND REFREEZING TONIGHT.
FREEZING DRIZZLE AND SNOW WILL CONTINUE TO TAPER OFF EARLY THIS EVENING. SKIES WILL CLEAR TONIGHT WHICH WILL ALLOW FOR SOME LATE NIGHT FREEZING FOG FORMATION. FRIDAY WILL GET OFF TO A COLD START WITH MANY AREAS ONLY BRIEFLY GETTING ABOVE FREEZING IN THE AFTERNOON.
THIS WILL CONTINUE THROUGH FRIDAY BASED ON POSITION OF UPPER RIDGE.
A WELL-DEVELOPED ANTICYCLONE IS IN CHARGE ACROSS THE WESTERN CARIBBEAN AND WESTERN ATLANTIC OCEAN. THE LOW LEVEL RIDGE AXIS ASSOCIATED WITH THIS SYSTEM STRETCHES ACROSS THE SOUTHERN FLORIDA PENINSULA. DEWPOINTS ARE IN THE LOWER 70S.
COLD FRONT HAS MOVED SOUTHEAST OF THE TAF SITES. LATE NIGHT MVFR FREEZING FOG POSSIBLE.
206 PM CST THU MAR 5 2015 WARMER AND MORE ACTIVE WEATHER IS IN THE FORECAST FOR THE SHORT TERM.
1145 AM CST THU MAR 5 2015 ARCTIC HIGH PRESSURE OVER THE REGION 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. WINDS HAVE BEEN DECREASING AS THE LOW LEVELS STABILIZE EARLY TODAY. WINDS TODAY WILL BE LIGHT NORTHWEST GENERALLY 10 MPH OR LESS AS THE HIGH PRESSURE SOUTHEAST. WHERE THE CENTER OF THE HIGH WILL TRACK. THE HIGH MOVING EAST AND FALLING PRESSURES OVER THE PLAINS WILL INDUCE A CHANGE TO SOUTHERLY WINDS. AS MID CLOUDS ASSOCIATED WITH THE SHORT WAVE TROF. FOLLOWING THE LOWS OF AROUND ZERO IN THE EAST 1/2 TO 5 TO 10 IN THE FAR WEST.
EXPECT SURFACE RIDGING INFLUENCES TO MODERATE THRU SAT NIGHT.
915 AM PST THU MAR 5 2015 Mild high pressure will build over the Inland Northwest the next few days bringing a prolonged period of dry weather.
THE PATTERN ALOFT FEATURED NORTHWEST FLOW ACROSS THE CENTRAL PLAINS AS AN UPPER RIDGE BUILDS OVER THE PACIFIC NORTHWEST. HEIGHTS ALOFT WILL CONTINUE TO RISE ACROSS OUR REGION DURING THE NEXT 24 HOURS AS THE EASTERN CONUS TROUGH LIFTS OUT. AND TOP OUT IN THE MID 50S TO THE LOWER 60S. HAVE WENT WITH THE WARMER SIDE OF GUIDANCE. MORE IN LINE WITH GFS/MAV THAN NAM/MET AS THE NAM INITIALIZED WITH TOO MUCH SNOW ON THE GROUND AND THIS IS REFLECTED IN THE COOLER GUIDANCE TEMPS. WITH THE WARMER TEMP FORECAST AND LOW DPS. CURRENTLY HAVE LOW RELATIVE HUMIDITY VALUES IN THE LOW 20TH PERCENTILE FOR LOCATIONS WEST OF A LINE FROM PHILLIPSBURG TO OSBORNE KANSAS.
213 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.
AS A MATTER OF FACT, THIS DISTURBANCE WILL ALTER THE MSLP PATTERN SUCH THAT WE WILL SEE INCREASED WESTERLY LOW LEVEL DOWNSLOPE MOMENTUM, LEADING TO MUCH WARMER TEMPERATURES FRIDAY.
SLIGHT 500 MB RIDGING ALONG WITH NEGATIVE VORTICITY ADVECTION WILL TRANSLATE OVER THE STATE DURING THE EVENING AND OVERNIGHT HOURS. NAM BUFKIT SOUNDINGS SHOW SOME DECENT MOISTENING IN THE LOWER LEVELS. SOUTHWEST SFC WINDS ALONG WITH SOME STRONG LOW LEVEL WARM AIR ADVECTION WILL BRING HIGHS FRIDAY INTO THE 30S AND EVEN ABOVE FREEZING IN SOME LOCATIONS IN OUR FAR WESTERN COUNTIES. WITH EVEN WARMER TEMPERATURES INTO THE AFTERNOON HOURS FRIDAY. WITH GUSTS REACHING INTO THE LOWER TO MID 20KT ACROSS THE FORECAST AREA.
246 PM CST THU MAR 5 2015 ARCTIC HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE MIDSOUTH OVER THE NEXT SEVERAL DAYS.
448 PM EST THU MAR 5 2015 A STRONG COLD FRONT WILL BE SOUTHEAST OF THE AREA TONIGHT.
THE HIGHER SUN ANGLE THIS TIME OF YEAR IS ALSO CONTRIBUTING AS WELL. WL HAVE TO CONTEND WITH WIDESPREAD FREEZING OF SLUSH AND STANDING WATER TNGT INTO FRI. BUT ANY WATER ON SURFACES WILL REFREEZE TONIGHT AS TEMPS DROP WELL BELOW FREEZING. WARMER ON FRIDAY. WITH AFTERNOON READING STRUGGLING TO REACH FREEZING.
RAPID EWD EXODUS OF POS TILTED MID TROPOSPHERIC TROF THROUGH LWR GRTLKS INTO ERN STATES FOLLOWED BY LESSER AMPLITUDE TROFFING INTO WRN GRTLKS FRI TO SOLIDIFY DRY CP ARCTIC AIRMASS ACRS REGION OVERNIGHT INTO EARLY FRI.
252 PM CST Thu Mar 5 2015 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.
231 PM CST THU MAR 5 2015 MUCH WARMER AND QUIETER CONDITIONS PREVAILING ACROSS EASTERN OKLAHOMA AND WESTERN ARKANSAS TODAY IN THE WAKE OF YESTERDAYS WINTRY MESS. THE INTENSE MARCH SUN IN COMBINATION WITH TEMPERATURES ABOVE FREEZING MOST AREAS HAS LED TO A STEADY DECREASE IN THE SNOW COVER ACROSS THE REGION. THE VERY COLD TEMPERATURES IN THESE AREAS COULD LEAD TO REFREEZING OF ANY MELTED SLEET/SNOW ON ROADWAYS OVERNIGHT. BUT HIGHS IN THE LOW TO MID 40S SHOULD GO A LONG WAY TOWARD MELTING WHAT REMAINS ON THE GROUND.
Upslope flow against the higher terrain continues to keep clouds in place along the eastern slopes. An upper level low that had previously broke away from the upper trough that affected the region yesterday will begin to drift east over northern Mexico today.
1226 PM CST THU MAR 5 2015 A SURGE OF WARMER AIR SHOULD MOVE OFF THE HIGH PLAINS THIS AFTN AND SWEEP EAST TO NEAR HIGHWAY 183 BY LATE AFTN. A BATCH OF MID AND HIGH LEVEL CLOUDS SHOULD MOVE ACROSS THE FCST AREA WITH SOME ADDITIONAL WARMING IN THE LOWER LEVELS AND AN INCREASE IN WIND SPEEDS BELOW 700 MB. RIDGE BUILDS ACROSS THE WEST COAST AND HEIGHTS WILL BE ON THE INCREASE ACROSS THE HIGH PLAINS.
HAVE THEREFORE MADE UPWARD ADJUSTMENTS TO THE HIGH TEMPS FOR TODAY. WITH THE UPPER LEVEL TROF AXIS NOW SLIDING BY TO OUR EAST. AS RIDGING CONDITIONS AND EXISTING SNOW/ICE COVER WILL KEEP HIGHS GENERALLY IN THE 30S. WARMER STILL OVER THE WEEKEND AS MID-LEVEL HEIGHTS RISE IN THE WAKE OF THE EXITING LONGWAVE TROF.
SHORT TERM: (Through Late This Afternoon) An upper level TROF axis extends from MN to central KS early this morning with a W-SW flow resulting over our region. Canadian high pressure was centered over the Mid-MO river valley. The primary cold front is well to our south, near the Gulf of Mexico coastline, and there appears to be a weak secondary cold front pushing thru northern MO and central IL now as evidenced by some pressure rises, a lull in the winds, and a reinforcing shot of CAA. The upper level TROF axis is expected to swing thru by early this afternoon leaving behind NW flow aloft in its wake.
1136 AM CST THU MAR 5 2015 FOR 18Z TAFS /ISSUED 930 AM CST THU MAR 5 2015/ AREAS WEST OF JACKSON AND DEKALB COUNTIES IN ALABAMA ARE ALL WELL BELOW FREEZING AND HAVE EXPERIENCED LIGHT ICE ACCUMULATIONS AND UP TO AN INCH OR TWO OF SLEET ACCUMULATION OVER THE PAST FEW HOURS. THE UPPER TROUGH IS MOVING THROUGH EASTERN ARKANSAS NOW WHICH IS HELPING TO QUICKLY PUSH THE PRECIP OUT OF THE AREA. TEMPS ARE STILL FORECAST TO RISE SLIGHTLY TODAY BUT PROBABLY WILL NOT GET ABOVE FREEZING IN MOST AREAS.
High pressure aloft will keep the airmass warm and dry.
1250 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 weather.
HIGH PRESSURE OVER THE AREA WILL DRIFT SOUTHEAST TONIGHT BUT NOT BEFORE CLEAR SKIES AND LIGHT WINDS CONSPIRE TO BRING ONE LAST NIGHT OF NEAR TO BELOW ZERO TEMPERATURES AWAY FROM CHICAGO. TIGHT PRESSURE GRADIENT BETWEEN HIGH PRESSURE DEPARTING TO SOUTHEAST AND LOW PRESSURE TO THE NORTH WILL RESULT IN GUSTY SOUTHWEST WINDS. DID TREND CLOSER TO WARMER SIDE OF GUIDANCE BASED ON CLIMO OF EXPECTED 850/925 MB TEMPS BY THE AFTERNOON. STEADY SOUTHWEST WINDS AHEAD OF A WEAK COLD FRONT WILL KEEP LOWS IN THE 20S FRIDAY NIGHT.
THE FREEZING LINE HAS MOVED INTO NORTHERN PICKENS. AND JEFFERSON COUNTIES JUST AHEAD OF THE BAND OF SLEET AND FREEZING RAIN. FREEZING RAIN ADVISORY UNTIL 3 PM CST THIS AFTERNOON FOR THE FOLLOWING COUNTIES: BIBB.
348 PM EST THU MAR 5 2015 CANADIAN HIGH PRESSURE WILL BUILD IN FROM THE WEST THROUGH FRIDAY.
LESS ABUNDANT WARMING AND A RELATIVELY FRESH SNOWPACK WILL HOLD HIGH TEMPERATURES CLOSER TO FREEZING IN EAST CENTRAL SD AND SOUTHWEST MINNESOTA.
109 PM EST THU MAR 5 2015 A WINTER STORM WILL TRACK OFF TO THE EAST AS HIGH PRESSURE BEGINS TO NOSE IN FROM THE WEST THIS AFTERNOON. HIGH PRESSURE WILL SETTLE INTO THE REGION TONIGHT INTO FRIDAY. MID LEVEL S/W TROF TO DROP SE THRU THE GREAT LAKES/OH VLY THIS AFTN.
High pressure currently centered through the Mid MS Valley will gradually retreat eastward tonight with southerly winds and low level warm advection developing in its wake. Meanwhile a well-defined short wave trof currently moving through the north central Plains will also dig into the area overnight bringing an increase in mid- high clouds to primarily northern parts of the CWA. The prominent eastern NOAM longwave trof will weaken some but west-northwest flow will persist.
A SURFACE LEE TROUGH WILL BE POSITIONED JUST WEST OF KGUY AND KDHT THROUGH THE PERIOD RESULTING IN LIGHT SOUTHWESTERLY WINDS OF LESS THAN 12 KTS AT BOTH TERMINALS. DEPENDING ON THE EXACT POSITION OF THE TROUGH. FURTHER EAST AWAY FROM THE LEE TROUGH WHERE THE GRADIENT IS STRONGER WINDS WILL BE HIGHER.
259 PM EST FRI FEB 6 2015 HIGH PRESSURE WILL PREVAIL THROUGH THE WEEKEND.
MODEL 925MB SOME 5 DEGREES C COOLER THAN 900 MB AT 21Z TODAY. EVEN WARMER CONDITIONS WILL BE LIKELY FOR SATURDAY.
WIND SPEEDS WILL INCREASE ON SATURDAY AS A WEAK TROUGH OVER WEST TEXAS DEEPENS. CIRRUS RIDING UP AND OVER THE NORTHERN EXTENT OF CENTRAL MEXICO UPPER RIDGING. LIGHT SURFACE WINDS VEERING MORE ONSHORE THIS AFTERNOON MAY ALSO AID IN WARMING THE LOWER LEVELS UP ENOUGH TO PROMOTE BETTER MIXING OUT OF THIS STUBBORN DECK.
1000 AM MST FRI FEB 6 2015 EARLY MORNING WV IMAGERY AND RAP H5 ANALYSIS SHOW LARGE SCALE RIDGE ACROSS THE WESTERN US INTO SOUTHERLY CANADA. AT THE SURFACE A WARM FRONT HAS LIFTED OVER OUR CWA AND IS CURRENTLY EXTENDING FROM NEAR KMCK TO SOUTHWEST KANSAS. MODELS CONTINUE TO SHOW STRONG RIDGING AND A VERY WARM AND DRY AIR MASS SETTLING OVER OUR CWA TODAY AND LASTING AT LEAST THROUGH SATURDAY.
1229 PM EST FRI FEB 6 2015 HIGH PRESSURE OVER THE OHIO VALLEY WILL SINK INTO THE DEEP SOUTH TODAY.
102 PM EST FRI FEB 6 2015 HIGH PRESSURE WILL MOVE OFF TO THE SOUTHEAST TODAY. THE HIGH WILL PUSH OFF THE ATLANTIC COAST WHILE LOW PRESSURE ORGANIZES OVER THE NORTHERN PLAINS.
313 PM EST FRI FEB 6 2015 HIGH PRESSURE WILL BRING ANOTHER COLD NIGHT TO THE AREA.
Pacific moisture aloft will continue to move over an upper level ridge axis and across Montana. Also, below freezing temperatures continue in the Milk River Valley although models continue to insist that it will be pushed out by strong Chinook winds over the plains. /ISSUED 335 AM MST Fri Feb 6 2015/ Strong/energetic SW flow aloft persists through this weekend as a series of weather disturbances eject out of a deep trough in the eastern Pacific and move NE across the region.
353 PM EST FRI FEB 6 2015 DRY WEATHER WILL PERSIST THROUGH SATURDAY BETWEEN HIGH PRESSURE TO THE SOUTHEAST AND LOW PRESSURE TO THE NORTHWEST.
350 PM EST FRI FEB 6 2015 HIGH PRESSURE WILL MOVE SOUTH OF THE STATE INTO TONIGHT AS A COLD FRONT MOVES SOUTHEAST THROUGH NEW YORK STATE. THIS COLD FRONT WILL PUSH INTO THE NORTH ON SATURDAY BEFORE STALLING OUT OVER THE NORTHERN MOUNTAINS.
/ISSUED 401 AM EST FRI FEB 6 2015/ HIGH PRESSURE STRETCHES FROM NEW ENGLAND BACK THROUGH EASTERN TEXAS. AND TEMPERATURES ARE CURRENTLY AROUND 10 DEGREES COOLER THAN THIS TIME YESTERDAY. HIGH PRESSURE AT THE SURFACE WILL CONTINUE THROUGH THE SHORT TERM PERIOD OF THE FORECAST.
ALONG WITH LAKE EFFECT SNOW TODAY/TONIGHT AS A TROUGH OF ARCTIC AIR SWEEPS OVER THE WESTERN GREAT LAKES REGION. DUE TO THE APPROACHING RIDGE AND RELATIVELY SHORT DURATION FOR LES.
VERY MILD CONDITIONS ACROSS THE AREA TODAY AS WE REMAIN UNDER THE INFLUENCE OF STRONG RIDGING ALOFT.
305 PM CST Fri Feb 6 2015 Main story in the near term will be the potential for fog to develop generally north of the Missouri River, where several inches to almost a foot of snow still remains; and much warmer temperatures moving into the region tomorrow. Advection fog is likely north of the MO river as warmer air continues to be transported northward over the snowpack. An upper level ridge will build over the region tomorrow with 850mb temps of 14-16 degrees. Steep lapse rates below 925mb will allow some of that warmer air to mix down to the surface, and with general southwesterly surface flow ahead of lee troughing on the High Plains, temperatures are expected to reach into the 60s to near 70 in areas without snow cover.
1215 PM EST FRI FEB 6 2015 HIGH PRESSURE THROUGH TONIGHT.
Warming trend has begun today and will continue through Saturday, with a broad upper ridge over Mexico and the adjacent southwest U. Given the low-level pattern with dry air and 850mb temperatures 17-18 deg C, going with highs above MOS guidance on Saturday.
Gusty winds will also continue in Grangeville/Camas Prairie and in the high terrain through tonight. Precipitation will decrease in northern Idaho and northwest Montana early Saturday morning but another warm front will quickly follow and spread rain from south to north through the day. This warm front will be in northern Idaho and northwest Montana Saturday afternoon with rain expected into Saturday night.
MODEL REMAIN IN AGREEMENT ADVERTISING A RATHER GENEROUS WARM UP THE NEXT SEVERAL DAYS IN RESPONSE TO AN AMPLIFYING RIDGE BUILDING OVER THE CNTRL CONUS. MEDIUM RANGE PROGS ARE ADVERTISING A THRUST OF CAA SWEEPING INTO THE LOWER 48 NEXT TUES. IN RESPONSE TO AN AMPLIFYING PATTERN CONSISTING OF A DEEP TROF EAST AND RIDGE WEST.