Aikyam-Lab/Synoptic-Bench huggingface dataset:
CLOUD COVER ASSOCIATED WITH THE UPPER LEVEL TROUGH IS CURRENTLY OVER THE REGION. A DRY SURFACE COLD FRONT, THAT WAS LOCATED FROM NORTH OF CSV TO NEAR PULASKI AT 20Z, SEPARATED TEMPERATURES IN THE LOW TO MID 60S EAST OF THE FRONT, TO THE MIDDLE AND UPPER 50S FURTHER WEST. TEMPERATURES WON'T COOL MUCH OVERNIGHT, WITH CLOUDS AND LIGHT WINDS EXPECTED TO KEEP READINGS FROM FALLING ANY LOWER THAN THE LOW-TO-MID 30S. ZONAL UPPER FLOW ALLOWS FOR AT LEAST ONE MORE DAY OF MILD TEMPERATURES ON WEDNESDAY, WITH HIGHS FORECAST TO BE IN THE LOW TO MID 50S.
832 PM EST TUE JAN 20 2015 WEAK COLD FRONT WILL CONTINUE TO SAG SOUTHWARD OVERNIGHT. WEDNESDAY SHOULD BE SLIGHTLY COOLER IN THE WAKE OF THE TRANSLATED DRY FROPA ALONG WITH NW SFC WINDS.
STILL NO STORMS TO BREAK DOWN THE UPPER RIDGE. BUT EVEN THEN THE UPPER RIDGE MAINTAINS.
1009 PM EST TUE JAN 20 2015 A RIDGE OF HIGH PRESSURE WILL PUSH ACROSS NEW YORK AND NORTHERN PENNSYLVANIA.
WITH SFC TEMPS A FEW DEGREES BELOW FREEZING THERE WILL BE AT LEAST SOME FREEZING FOG POTENTIAL.
/ISSUED 404 PM CST Tue Jan 20 2015/ Despite a cold front moving through the area this afternoon, temperatures have once again warmed to well above normal, in the middle 60s across southeast New Mexico to a balmy 80 degrees in Terrell county Texas. A southern stream trough is expected to continue to deepen and develop a closed circulation as it drops from the Four Corners Region toward West Texas over the next 24 hours. Precipitation chances will continue to increase by Wednesday night as the larger southern stream trough nears the area, and as temperatures drop, expect to see the rain begin to change over to snow first across the higher terrain of the Guadalupe, Davis, and Glass Mountains, as well as across southeastern New Mexico and the far northwestern Permian Basin.
ADDED SOME LIGHT FREEZING DRIZZLE TO THE FORECAST FOR EL PASO COUNTY FOR THE EVENING HOURS.
APPROACHING COLD FRONT NOW STRETCHING ACROSS CENTRAL LOUISIANA AND THROUGH INTERIOR SOUTHEAST TEXAS. WEAK LOW PRESSURE OVER CENTRAL TEXAS WILL CONTINUE MOVING SOUTH TO SE THIS EVENING WHILE SLOWLY WEAKENING KEEPING A WEAK ONSHORE FLOW IN PLACE THROUGH LATE TONIGHT OR VERY EARLY WED. THIS WILL SERVE TO INCREASE MOISTURE LEADING TO FOG OVERNIGHT AHEAD OF A COLD FRONT. BY WEDNESDAY MORNING A RIDGE OF HIGH PRESSURE WILL BEGIN TO BUILD IN FROM THE NORTH ALLOWING A SLIGHTLY COOLER AIRMASS TO FILTER IN THROUGH THE DAY.
HIGH PRESSURE OVER THE WESTERN ATLC CONTINUES TO MOVE FURTHER EAST AWAY FROM THE PENINSULA. A DRY ADVECTION PATTERN WILL PREVAIL ACRS CENTRAL FL AS A CONTINENTAL RIDGE OVER THE CENTRAL PLAINS/MID MS VALLEY NOSES ITS WAY INTO THE DEEP SOUTH. W/NWRLY SFC/LOW LVL FLOW WILL VEER TO THE N/NE THRU THE DAY AS THE RIDGE EXPANDS EWD. THEN NW TOWARDS DAYBREAK AS HIGH PRESSURE VENTURES FURTHER EAST INTO THE ATLC. LIGHT TO GENTLE SFC BREEZE WILL CONT TO VEER TO THE N THRU MIDDAY THEN TO THE NE BY SUNSET AS A HI PRES RIDGE BUILDS OVER THE DEEP SOUTH AND COLLAPSE THE GOMEX TROF.
MAIN CONCERNS IN THE SHORT TERM REMAIN FOCUSED AROUND THE PERSISTENT LIGHT SNOW/FLURRIES WITH OCCASIONAL LIGHT FREEZING DRIZZLE TONIGHT THROUGH WEDNESDAY AFTERNOON. WITH SNOW AND INTERMITTENT LIGHT FREEZING DRIZZLE BEING REPORTED. THE REMAINDER OF THE NORTHLAND WILL LIKELY SEE SCATTERED FLURRIES AND OCCASIONAL LIGHT FREEZING DRIZZLE WITH MINIMAL TO NO ACCUMULATION EXPECTED. ALTHOUGH THE THREAT FOR FREEZING DRIZZLE REALLY HAS NOT MATERIALIZED AS ANTICIPATED TODAY.
HIGH PRESSURE ALOFT WILL EXPAND ACROSS THE WESTERN STATES DURING THE LATTER HALF OF THE WEEK. A FAIRLY STRONG UPPER RIDGE ALONG THE WEST COAST TUESDAY NIGHT WILL SHIFT EAST AND THEN ROLLOVER ACROSS THE GREAT BASIN LATE IN THE WEEK.
826 PM CST TUE JAN 20 2015 EVENING SFC ANALYSIS INDICATES DRY COLD FRONT SITUATED JUST ALONG THE NATCHEZ TRACE CORRIDOR. A DRY COLD FRONT JUST SOUTH OF A LINE FROM MLU TO GTR AT 02Z WILL MOVE THROUGH THE AREA TONIGHT. HIGH PRESSURE WILL BE RETURNING TONIGHT BEHIND A DRY COLD FRONT CURRENTLY PUSHING THROUGH THE REGION. LOWS TONIGHT WILL RANGE FROM THE UPPER 30S NORTH TO THE LOWER 40S SOUTH. HIGH PRESSURE AND LIGHT NORTHEASTERLY WINDS WILL PREVAIL ACROSS THE AREA ON WEDNESDAY WITH HIGHS MAINLY IN THE UPPER 50S NORTH TO MID 60S SOUTH.
As colder air continues to filter into the region behind a cold front that moved through the area earlier today, low clouds will form overnight, with MVFR conditions at all sites except KABI which be slower to degrade due to some drier air near that site. /ISSUED 401 PM CST TUE JAN 20 2015/ (Tonight and Wednesday) Cooler tomorrow with rain moving into the area. A cold front was located near a line from Midland to just north of Brownwood as of 2 PM this afternoon. So, tonight's overnight lows will be actually be warmer in some cases than last night. Southern areas where the persistent wind will help to keep the boundary layer mixed are only expected to drop into the lower 40s as opposed to the near freezing temperatures experienced this morning.
THANKS TO A DRY ATMOSPHERE IN THE LOWER LAYERS. A COLD FRONT IS PASSING THROUGH NW ALABAMA AND THROUGH MUSCLE SHOALS WITH A NORTHWEST WIND AND COOLER AIR FOLLOWING IT. THE HIGH CLOUDS HAVE FILLED IN AND SHOULD REMAIN THROUGH THE NIGHT WITH AN OCCASIONAL BREAK OR TWO. COOLER AIR AND SOME SUN RETURNS ON WEDNESDAY WITH HIGHS IN THE MIDDLE 50S.
800 PM PST TUE JAN 20 2015 A WEAK TROUGH OF LOW PRESSURE WILL DEEPEN THE MARINE LAYER TONIGHT INTO WEDNESDAY.
850 PM EST TUE JAN 20 2015 THE SHORT WAVE TROUGH HAS CLEARED THE AREA AND IS NOW LOCATED OFF THE EAST COAST OF FLORIDA. CLOUDINESS ASSOCIATED WITH THIS TROUGH HAS MOVED EASTWARD AS WELL AND DIMINISHED OVER THE REGION. TEMPERATURES ARE TRACKING WELL AND ARE PROJECTED TO REMAIN WARMER THAN 24 HOURS AGO AND 5-7 DEGREES ABOVE AVERAGE. ON WEDNESDAY A FRONTAL TROUGH WILL MOVE SOUTH THROUGH THE WATERS DURING THE DAY AS DEEPENING LOW PRESSURE MOVES NORTHEAST OFF THE MID ATLANTIC COAST.
ABUNDANT HIGH CLOUDS WERE PRESENT OVER THE REGION THIS AFTERNOON AS AN UPPER TROUGH MOVED SOUTHEAST THROUGH THE AREA TODAY. THE UPPER TROUGH WILL SHIFT EAST OUT OF THE AREA LATE TONIGHT INTO EARLY TOMORROW MORNING ALLOWING HIGH PRESSURE TO BRIEFLY BUILD OVER THE REGION. THE HIGH RES ARW.
While the atmosphere is dry in the low-levels, some saturation is occurring as there has been light rain report out to our west. A fast zonal 500mb flow will develop over the Lower Ohio Valley over the next couple of days. Lows tonight will vary from the lower to mid 30s, while Wednesday's highs will range from near 50 south to the middle 40s north. By tomorrow evening, a sagging west to east orientated trough will move south across Indiana. This will spread some cloudiness as well as cooler temperatures as far south as central Kentucky. Expect low Wednesday night again in the lower to mid 30s.
850 PM MST Tue Jan 20 2015 The main change to the forecast was to add patchy freezing fog to some of the southwest valleys (including Helena and Bozeman) and also over a few river valleys of central Montana. Winds should be light and there should be enough low level moisture for at least patchy freezing fog.
710 PM EST TUE JAN 20 2015 A DRY COLD FRONT WILL MOVE THROUGH THE AREA WEDNESDAY MORNING.
An inverted trough over the eastern Gulf of Mexico will touch off some isolated to scattered showers overnight, mainly across our FL zones.
543 PM CST TUE JAN 20 2015 MAIN DRIVER OF SHORT TERM WX IS A WEAK CYCLONE WHICH IS SLATED TO CONTINUE TO PROPAGATE SOUTHEASTWARD FROM THE DAKOTAS THROUGH SOUTHERN MINNESOTA AND MAKE IT ACROSS NORTHEASTERN IA BY 12Z TONIGHT. THE GFS IS WAY UNDER-DOING MOISTURE IN THE LOW LEVELS OF THE ATMOS. LIGHT NORTHWEST FLOW WILL PERSIST ON WEDNESDAY AND WEDNESDAY NIGHT AS ONE LAST WEAK LOBE MOVES THROUGH THE DEPARTING 500 MB TROUGH. BUT SOME MIX OF RAIN AND SNOW IS LIKELY WITH SNOW THE PREDOMINANT P-TYPE ACROSS OUR NORTHERN COUNTIES AND PERIODS OF DRIZZLE OR FREEZING DRIZZLE POSSIBLE.
1100 PM EST TUE JAN 20 2015 HIGH PRESSURE WILL BUILD IN FROM THE WEST TONIGHT THROUGH WEDNESDAY. LOW PRESSURE WILL PASS OUT TO SEA SOUTH OF NEW ENGLAND WEDNESDAY NIGHT.
A WEAK COLD FRONT WILL PUSH THROUGH EARLY IN THE PERIOD.
MOSTLY CLOUDY SKIES AND SLIGHTLY COOLER TEMPERATURES ARE EXPECTED INTO EARLY WEDNESDAY AS A WEAK WEATHER SYSTEM MOVES THROUGH. WEAK LOW PRESSURE IS MOVING ACROSS THE AREA THIS EVENING WITH ENOUGH MOISTURE PRESENT IN THE LOW-MID LEVELS FOR RAINDROPS TO REACH THE LOWER ELEVATIONS. THROUGH WEDNESDAY MORNING A FEW VIRGA SHOWERS ARE EXPECTED WITH PERHAPS SOME LIGHT SHOWERS ACROSS THE HIGHER TERRAIN AND NORTHERN MOHAVE COUNTY.
INCREASED FIRST PERIOD POPS OVER NORTH CENTRAL NORTH DAKOTA AND TRENDED THE HIGHER POPS SOUTH THROUGH THE OVERNIGHT HOURS. CURRENT SURFACE ANALYSIS PLACES LOW SETTLING THROUGH THE UPPER MIDWEST WITH TROUGH EXTENDING UP INTO THE NORTHERN PLAINS. AN UPPER RIDGE WILL GRADUALLY PROPAGATE FROM THE EASTERN PACIFIC.
NEW DECKS ARE FORMING IN THIS LAYER WITH SOME MOISTURE EVIDENT EVEN HOURS AGO ON THE SOUNDING IN THE WAKE OF DEEPENING NE FLOW BEHIND THE BACKDOOR COLD FRONT. IT WILL BE A QUIET NIGHT WITH INCREASING CLOUDS AGAIN TOMORROW AHEAD OF THE COMING UPPER LEVEL LOW OVER S CA/AZ.
1034 PM EST TUE JAN 20 2015 A WEAK COLD FRONT WILL APPROACH FROM THE NORTH WITH HIGH PRESSURE SLIDING FARTHER OFF THE SOUTHEAST COAST TONIGHT.
/ISSUED 400 PM EST TUE JAN 20 2015/ A WEAK TROUGH OF LOW PRESSURE IS MOVING ACROSS SOUTH FLORIDA. AS THIS LOW CROSSING THE CWA, ANOTHER LOW WILL FORM OFF THE OUTER BANKS OF NORTH CAROLINA. THIS NEW LOW WILL BRING A WEAK COLD FRONT INTO THE AREA.
1021 PM EST TUE JAN 20 2015 A DRY COLD FRONT WILL MOVE THROUGH THE AREA OVERNIGHT INTO WEDNESDAY MORNING.
659 PM EST TUE JAN 20 2015 HIGH PRESSURE WILL BUILD IN FROM THE WEST TONIGHT THROUGH WEDNESDAY. LOW PRESSURE WILL PASS OUT TO SEA SOUTH OF NEW ENGLAND WEDNESDAY NIGHT.
647 PM EST TUE JAN 20 2015 AN AREA OF WEAK LOW PRESSURE OVER THE NORTHERN PLAINS WILL MOVE EAST ACROSS THE AREA ON WEDNESDAY.
MOSTLY CLOUDY SKIES AND SLIGHTLY COOLER TEMPERATURES ARE EXPECTED INTO EARLY WEDNESDAY AS A WEAK WEATHER SYSTEM MOVES THROUGH. THROUGH WEDNESDAY MORNING A FEW VIRGA SHOWERS ARE EXPECTED WITH PERHAPS SOME LIGHT SHOWERS ACROSS THE HIGHER TERRAIN AND NORTHERN MOHAVE COUNTY.
609 PM MST TUE JAN 20 2015 ADDED SOME LIGHT FREEZING DRIZZLE TO THE FORECAST FOR EL PASO COUNTY FOR THE EVENING HOURS.
Added patchy freezing fog towards daybreak, but kept the advisory dense fog at this time with temperatures generally remaining at or above the freezing mark most of the night.
534 PM CST Tue Jan 20 2015 Lingering sunshine is rapidly fading across the CWA, as the low cloud deck has advanced as far southeast as Decatur and Paris, while mid and high clouds spread east from Missouri. The lower clouds have stopped the temperature rise in the north with mid/upper 30s this afternoon, while mid 40s to around 50 degrees were observed further south where the sunshine had lingered the longest. With this type of system, the highest snow chances are generally along/north of the track, and the forecast soundings across our northern CWA show little in the way of snow- generating ice crystals in the -10 to -20C layer. As the low passes to our east later in the day, there may be enough cyclonic flow/weak cold air advection for some scattered flurries across the north into Wed.
1040 PM EST TUE JAN 20 2015 AN AREA OF WEAK LOW PRESSURE OVER IOWA WILL MOVE EAST ACROSS THE AREA ON WEDNESDAY.
SLIGHTLY COOLER AIR WILL MOVE INTO THE REGION THROUGH THE REST OF THE WEEK. WITH HIGH PRESSURE PROVIDING DRY CONDITIONS. SURFACE TEMPERATURES MAY BE NEAR FREEZING. SO SOME FREEZING RAIN IS NOT OUT OF THE QUESTION. ANY ACCUMULATIONS WOULD BE QUITE LIGHT AND SURFACE TEMPERATURES SHOULD BE NEAR OR JUST ABOVE FREEZING.
Pacific upper level ridging is building in behind the trough, with drier northerly flow developing. This has gradually been clearing the Valley today of the low clouds and fog, with low stratus clouds beginning to erode over the northern San Joaquin Valley. The upper level ridge will become unusually strong for this time of year by the end of the week.
601 PM EST TUE JAN 20 2015 AN AREA OF WEAK LOW PRESSURE SYSTEM OVER THE NORTHERN PLAINS THIS EVENING WILL MOVE EAST ACROSS NORTHERN OHIO ON WEDNESDAY. THE LOW WILL MOVE ACROSS PENNSYLVANIA TOMORROW NIGHT.
CHATTANOOGA AIRPORT, TN 39 59 34 52 / 0 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 39 54 33 48 / 0 0 10 10 OAK RIDGE, TN 39 55 34 49 / 10 10 10 0 TRI CITIES AIRPORT, TN 37 53 29 45 / 10 10 10 10.
845 PM CST TUE JAN 20 2015 ADDED PATCHY FOG/FREEZING FOG TONIGHT EAST OF A ENID TO GUTHRIE TO ADA TO ATOKA LINE. DO NOT THINK FOG/FREEZING FOG WILL GET VERY DENSE OR CAUSE ANY SIGNFICANT PROBLEMS TONIGHT INTO WEDNESDAY MORNING.
FOLLOWED BY HIGH PRESSURE ALOFT EXPANDING ACROSS THE WESTERN STATES DURING THE LATTER HALF OF THE WEEK.
AT THE SURFACE AND IN THE LOWER TO MID LEVELS. THE WESTERN EDGE OF A 1020 MB ANTICYCLONE FROM THE WEST CENTRAL ATLANTIC POKES WESTWARD TO ACROSS CENTRAL FLORIDA. WITH ABOVE NORMAL MOISTURE IN THE LOWER TO MID TROPOSPHERE. TEMPERATURES ACROSS THE ISLANDS ARE IN THE LOWER TO MID 70S WITH DEWPOINTS IN THE MID TO UPPER 60S. THE HIGH TEMPERATURE IN KEY WEST HIT 86 DEGREES.
/ISSUED 359 PM CST TUE JAN 20 2015/ COLD FRONT IS ORIENTED ALONG OR JUST NORTH THE I-20 CORRIDOR THIS AFTERNOON AS IT MAINTAINS STEADY PROGRESS ACROSS THE REGION. TEMPERATURES WILL RUN ONLY SLIGHTLY COOLER ON WEDNESDAY WITH PACIFIC MOISTURE INCREASING.
611 PM EST TUE JAN 20 2015 A WEAK COLD FRONT WILL APPROACH FROM THE NORTH WITH HIGH PRESSURE SLIDING FARTHER OFF THE SOUTHEAST COAST TONIGHT.
TEMPS WILL FALL BELOW FREEZING THIS EVENING AS WE AWAIT THE NEXT CLIPPER. BROAD CLOSED 700 MB LOW WILL TRACK FROM BENTON HARBOR TO SOUTH OF DETROIT KEEPING THE HIGHEST ACCUMULATION POTENTIAL GENERALLY ALONG THIS TRACK.
COLD FRONT WILL SAG INTO NORTHERN AR ON WEDNESDAY WITH ADDITIONAL CLOUDS AND A WIND SHIFT TO THE N TO NW.
805 PM MST TUE JAN 20 2015 AREA WEBCAMS AND SATELLITE SHOWS DENSE FREEZING FOG EXPANDING RAPIDLY OVER THE UPPER SNAKE PLAIN THIS EVENING AND STARTING TO MAKE SOME PROGRESS DOWN THE SNAKE PLAIN. ELECTED TO ISSUE A FREEZING FOG ADVISORY FOR TONIGHT AND TOMORROW MORNING FROM AMERICAN FALLS THROUGH REXBURG.
404 PM CST Tue Jan 20 2015 Despite a cold front moving through the area this afternoon, temperatures have once again warmed to well above normal, in the middle 60s across southeast New Mexico to a balmy 80 degrees in Terrell county Texas. A southern stream trough is expected to continue to deepen and develop a closed circulation as it drops from the Four Corners Region toward West Texas over the next 24 hours. Precipitation chances will continue to increase by Wednesday night as the larger southern stream trough nears the area, and as temperatures drop, expect to see the rain begin to change over to snow first across the higher terrain of the Guadalupe, Davis, and Glass Mountains, as well as across southeastern New Mexico and the far northwestern Permian Basin.
944 PM EST TUE JAN 20 2015 HIGH PRESSURE PASSING TO THE NORTH WILL NOSE INTO THE AREA THROUGH WEDNESDAY MORNING.
549 PM CST TUE JAN 20 2015 /00Z TAFS/ VFR CONDITIONS PREVAIL ACROSS NORTH TEXAS THIS EVENING AS A SURFACE COLD FRONT CONTINUES TO SLIDE SOUTH ACROSS THE AREA.
401 PM CST TUE JAN 20 2015 (Tonight and Wednesday) Cooler tomorrow with rain moving into the area. A cold front was located near a line from Midland to just north of Brownwood as of 2 PM this afternoon. So, tonight's overnight lows will be actually be warmer in some cases than last night. Southern areas where the persistent wind will help to keep the boundary layer mixed are only expected to drop into the lower 40s as opposed to the near freezing temperatures experienced this morning.
409 AM CST MON FEB 2 2015 COLD FRONT HAS PLOWED INTO CENTRAL ALABAMA THIS MORNING.
BOUTS OF MVFR/IFR TODAY AS A COLD FRONT MOVES ACROSS THE TERMINALS. BREEZY SOUTH TO SOUTHWEST WINDS AHEAD OF THE COLD FRONT WILL SHIFT TO NORTHWESTERLY AS THE BOUNDARY MOVES ACROSS THE WATERS FROM NORTHWEST TO SOUTHEAST TODAY.
LOOK FOR DRIER AND MUCH WARMER WEATHER OVER THE NEXT SEVERAL DAYS AS A HIGH PRESSURE RIDGE MOVES INTO THE WESTERN STATES. HIGH TEMPERATURES THROUGH MUCH OF THE WEEK WILL BE 10 TO 20 DEGREES WARMER THAN NORMAL.
NORTH/NORTHWEST WINDS WILL DECREASE AND BECOME LESS GUSTY THIS MORNING AS A LARGE AREA OF HIGH PRESSURE BUILDS OVER THE REGION FROM THE PLAINS.
LATEST SATELLITE IMAGERY SHOWED AN UPPER TROUGH PUSHING INTO THE REGION FROM THE NORTHWEST. WINDS WILL BE ON THE GUSTY SIDE THIS MORNING WITH THE TIGHT PRESSURE GRADIENT AS HIGH PRESSURE BUILDS IN FROM THE PLAINS.
755 AM EST MON FEB 2 2015 A COLD FRONT WILL MOVE ACROSS THE REGION TODAY.
Scattered flurries and light snow showers will be possible for awhile early this morning, but most of the day will be precip free as high pressure builds in from the west. The high will bring a shot of cold air with it. Still, readings will likely fall into the lower half of the 20s. A brief warming trend will get going Tue/Wed as the high moves off to the east and winds become more southerly. Will go with small rain chances Wed afternoon as yet another cold front pushes in from the nw.
A short lull in the weather pattern tonight as high pressure briefly moves through. Southerly winds, a switch to WAA brings the highs up for Tuesday into the 30s.
932 AM EST MON FEB 2 2015 PREFRONTAL TROUGH ACCOMPANIED BY A LINE OF SHOWERS IS QUICKLY MOVING EAST ACROSS THE FORECAST AREA THIS MORNING. THE COLD FRONT ITSELF WITH A THERMAL BOUNDARY IS NOW ENTERING NORTHWESTERN COUNTIES. A COLD FRONT WILL CROSS AREA WATERS TODAY.
ATMOS SHOULD EVENTUALLY MOISTEN THRU THE DAY AND TUE NT AS UPGLIDE OVER THE DEVELOPING COASTAL TROF BECOMES BETTER ESTABLISHED. FAIRLY GOOD AGREEMENT THIS COASTAL TROF WILL SET UP WELL OFFSHORE AND HEAVY RAIN SHOULDN'T BE A THREAT INLAND. PRECIP CHANCES WILL COME TO AN END BY WED AFTN AS UPPER TROF PASSES THRU AND MERGES INTO THE MEAN ERN TROF. COLD FRONT WILL MAKE ITS WAY ACROSS THE AREA LATE WED NIGHT. AS HIGH PRESSURE FINALLY SETTLES OVER THE REGION. THIS EAST FLOW SHOULD REMAIN IN PLACE TUES/WEDS OUT AHEAD OF ANOTHER STRONG COLD FRONT THAT IS FCST TO MOVE OFF THE UP- PER TX COASTLINE WEDS NIGHT/EARLY THURS MORNING. 41 GENERALLY VFR CONDITIONS IN THE WAKE OF THE COLD FRONT.
222 AM PST MON FEB 2 2015 HIGH PRESSURE OVER THE SIERRA NEVADA TODAY WILL WEAKEN TODAY AND TUESDAY AS WEAK SYSTEMS MOVE INTO OREGON AND WASHINGTON. HIGH PRESSURE WILL STRENGTHEN AGAIN FOR MIDWEEK WITH CONTINUED MILD TEMPERATURES AND DRY CONDITIONS. AFTER THIS WAVE MOVES THROUGH, THE RIDGE SLOWLY STARTS REBUILDING ALTHOUGH SCT SHOWERS REMAIN POSSIBLE TUESDAY NEAR THE OREGON BORDER. WITH MORE CLOUDS TONIGHT AND A WARMER START TUESDAY, IT COULD GET QUITE WARM IN WESTERN NEVADA IF FULL MIXING TAKES PLACE.
650 AM EST MON FEB 2 2015 A COLD FRONT WILL MOVE ACROSS THE REGION TODAY. WITH A MIXTURE OF FREEZING RAIN AND RAIN ACROSS THE SOUTHERN HALF OF THE AREA.
311 AM MST MON FEB 2 2015 LATEST SATELLITE AND UPPER AIR ANALYSIS INDICATE A LONG WAVE RIDGE OVER THE WEST COAST AND A LONG WAVE TROUGH CENTERED OVER THE MISSISSIPPI RIVER VALLEY. WITH SOME SUBTLE SMALLER SCALE TROUGHS. AT THE SURFACE A WARM FRONT WAS PROGRESSING EAST ACROSS THE HIGH PLAINS.
/ISSUED 339 AM CST MON FEB 2 2015/ NORTH WINDS WILL DIMINISH THIS MORNING AS HIGH PRESSURE SETTLES OVER THE AREA. SOUTHERLY WINDS WILL RETURN BY AFTERNOON AS THE RIDGE OF HIGH PRESSURE MOVES OFF TO THE EAST BUT IT WILL STILL BE A CHILLY AFTERNOON WITH MOST PLACES REMAINING IN THE 30S FOR HIGHS TODAY.
BY TONIGHT COLD HIGH PRESSURE BUILDS IN WITH DIMINISHING WINDS. HIGH TEMPS TUES WILL BE WARMER THAN MONDAYS MARKS.
812 AM EST MON FEB 2 2015 A COLD FRONT WILL MOVE ACROSS THE REGION TODAY.
Although snowfall has largely decreased across the region, re-freezing of moisture on roadways will cause a slick morning commute. A few places may see 1-2 inches of snow especially along US-93 between Whitefish and Eureka, US-2 between Happy's Inn and Marion, Polebridge and Georgetown Lake area. Untreated surfaces could become slick once again tonight as temperatures cool and ground temperatures are near freezing. Tuesday: A low pressure area will track from central Oregon to just south of Lemhi County Tuesday night.
530 AM CST MON FEB 2 2015 FOR 12Z TAFS /ISSUED 304 AM CST MON FEB 2 2015/ AS OF 09Z THE COLD FRONT THAT BROUGHT THE HEAVY RAIN OVERNIGHT IS EAST OF THE FORECAST AREA. WATER VAPOR ANALYSIS INDICATES THAT THE TRAILING UPPER TROUGH IS PUSHING THROUGH ARKANSAS AND INTO MISSISSIPPI AS WELL. TEMPS ARE FALLING QUICKLY WITH THE UPPER TROUGH WITH TEMPS ALREADY BELOW FREEZING IN EASTERN ARKANSAS. AS THE UPPER TROUGH MOVES THROUGH. THE NEW FORECAST IS A DEGREE OR TWO COOLER THAN THE PREVIOUS BUT MAY STILL BE TOO WARM IN REALITY AND MAY NEED TO BE MONITORED. LOWS RIGHT NOW ARE FORECAST IN THE LOWER TO MIDDLE 20S. HIGH PRESSURE. HIGHS TUES WILL GET INTO THE UPPER 40S AND WED INTO THE LOWER 50S AGAIN WITH LOWS NEAR NORMAL.
517 AM CST MON FEB 2 2015 ANALYSIS AT 2 AM SHOWS CLEAR SKIES WITH DIMINISHING NW WINDS AS HIGH PRESSURE MOVES IN FROM THE NW.
522 AM EST MON FEB 2 2015 LOW PRESSURE EXITING NORTHEAST OF THE AREA. WHIPS COLD FRONT OVERNIGHT/EARLY MONDAY. HIGH PRESSURE CROSSES TUESDAY.
519 AM CST Mon Feb 2 2015 Early this morning radar and surface observations show some lingering light snow (flurries really) persisting across central Missouri as the deformation zone following the upper level trough swings through.
A STRONG AREA OF HIGH PRESSURE WILL REMAIN ALONG THE CALIFORNIA COAST.
CHATTANOOGA AIRPORT, TN 42 24 47 30 / 40 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 44 23 45 28 / 70 0 0 0 OAK RIDGE, TN 40 24 45 29 / 60 0 0 0 TRI CITIES AIRPORT, TN 44 19 42 23 / 70 10 0 0 NC.
SURFACE OBSERVATIONS INDICATE AREAS OF DENSE FOG IN THE KITTITAS AND YAKIMA VALLEYS AND ACROSS THE LOWER COLUMBIA BASIN OF WASHINGTON AND OREGON.
424 AM CST MON FEB 2 2015 SURFACE ANALYSIS HAS AN AREA OF HIGH PRESSURE JUST TO THE SOUTHEAST OF THE FORECAST AREA EARLY THIS MORNING. ALL THAT AND THE NEW SNOW MAKE FOR A CHALLENGE FOR THE HIGHS THIS AFTERNOON. FURTHER TO THE SOUTHWEST WHERE ONLY A COUPLE OF INCHES OF SNOW FELL TEMPERATURES WILL BE WARMER. LOWS TONIGHT WILL BE MUCH WARMER THAN WHAT IS CURRENTLY OCCURRING.
THERE IS A SLIGHT CHANCE FOR FREEZING RAIN EARLY THIS MORNING SO ADDED WORDING TO THE FORECAST. SOME LOWER VALLEY TEMPERATURES ARE HOVERING NEAR FREEZING WITH A WARM LAYER ALOFT. BOTH OF WHICH ARE NEAR FREEZING.
However, a secondary cold front is still progged to blast through the region early this morning bringing much colder air and changing light precip over to snow showers. As temperatures fall well into the 20s behind the cold front, any light snow would stick and may cause slick spots.
THE UPPER LEVEL LOW CENTERED NEAR THE SOUTHERN END OF BAJA CALIFORNIA WILL MOVE INTO NORTH-CENTRAL MEXICO BY TUE MORNING. AHEAD OF THE LOW. DESPITE THE HIGH POPS ACROSS THE CWA. 00Z GUIDANCE HAS COME IN COOLER.
330 AM PST MON FEB 2 2015 HIGH PRESSURE ALOFT WILL KEEP A WARM AND DRY AIR MASS IN PLACE THROUGH MIDWEEK.
/ISSUED 340 AM CST MON FEB 2 2015/ CURRENT OBSERVATIONS ACROSS MIDDLE TN SHOW THAT THE COLD FRONT ASSOCIATED WITH OUR CURRENT SYSTEM IS ALL THE WAY THROUGH THE AREA. RANGING FROM THE LOW 40S ON THE PLATEAU TO LOW 30S NEAR THE TN RIVER. NO PRECIP IS EXPECTED WITH THIS TROUGH.
555 AM EST MON FEB 2 2015 RAIN WILL CHANGEOVER TO SNOW THIS MORNING AS MUCH COLDER AIR MOVES IN BEHIND A DEPARTING LOW PRESSURE SYSTEM.
A COLD FRONT IS EXPECTED TO MOVE THROUGH THE KEYS LATER IN THE EVENING.
A LEE TROUGH OF LOW PRESSURE ACROSS THE PLAINS WILL ENSURE PLENTY OF DOWNSLOPE WARMING.
420 AM PST MON FEB 2 2015 UPDATED AVIATION SECTION HIGH PRESSURE ALOFT WILL KEEP A WARM AND DRY AIR MASS IN PLACE THROUGH MIDWEEK.
SERIES OF MOIST UPPER LEVEL IMPULSES WILL SHIFT THROUGH THE LOW AMPLITUDE WNW FLOW ALOFT THROUGH TUESDAY. 9 MICRON IMAGERY INDICATE AREAS OF LOW AND MID CLOUDS OVER IDAHO /FOG AND STRATUS ACROSS THE LOWER T.
516 AM CST MON FEB 2 2015 SURFACE ANALYSIS HAS AN AREA OF HIGH PRESSURE JUST TO THE SOUTHEAST OF THE FORECAST AREA EARLY THIS MORNING. ALL THAT AND THE NEW SNOW MAKE FOR A CHALLENGE FOR THE HIGHS THIS AFTERNOON. FURTHER TO THE SOUTHWEST WHERE ONLY A COUPLE OF INCHES OF SNOW FELL TEMPERATURES WILL BE WARMER. LOWS TONIGHT WILL BE MUCH WARMER THAN WHAT IS CURRENTLY OCCURRING.