Aikyam-Lab/Synoptic-Bench huggingface dataset:
444 AM EST WED JAN 13 2016 HIGH PRESSURE WILL BE IN PLACE THIS MORNING. HIGH PRESSURE AND CLEAR SKIES ARE IN PLACE THIS MORNING. WINDS ARE SLIGHTLY LESS ACROSS THE SOUTH AND TEMPERATURES A FEW DEGREES WARMER. DUE TO THIS LOCATIONS ACROSS THE SOUTHERN HALF OF THE FA ARE GENERALLY EXPECTED TO STAY WARMER THAN WIND CHILL ADVISORY CRITERIA. THERE ARE SOME SUBTLE INDICATIONS THAT THERE IS THE POTENTIAL FOR SOME VERY LIGHT DRIZZLE AND FREEZING DRIZZLE ACROSS THE FA THURSDAY MORNING.
GOOD FLYING WEATHER NEXT 24 HOURS AS HIGH PRESSURE WILL REMAIN IN CONTROL AS IT SLOWLY WORKS ACROSS OUR AREA.
9 PM SURFACE MAP SHOWED A COLD FRONT EXTENDING FROM THE NORTHERN MEMPHIS METRO TO JUST SOUTH OF JACKSON. A COLD FRONT IS DROPPING SOUTH THROUGH THE FORECAST AREA THIS AFTERNOON SHIFTING THE WINDS FROM THE SOUTHWEST TO THE NORTHWEST. THE FRONT WILL MOVE SOUTH OF THE REGION TONIGHT WITH HIGH PRESSURE BUILDING IN BEHIND THE FRONT. THE HIGH WILL MOVE TO THE EAST OF THE REGION ON WEDNESDAY. DRY WEATHER ON WARMER TEMPERATURES WILL BE FOUND ON THURSDAY AS HIGH PRESSURE IS OVER THE SOUTHEAST U. A COLD FRONT WILL MOVE ACROSS THE SOUTHERN PLAINS ON THURSDAY NIGHT.
THINK WITH CLOUDS AND WARMER AIR COMING IN FROM WESTERN AND CENTRAL ND WE SHOULD SEE SOME RISING TEMPS OVERNIGHT IN SOME AREAS.
OTHERWISE HIGH CLOUDS BEGIN TO INCREASE ESPECIALLY ACROSS THE NORTH AND CENTRAL ZONES AHEAD OF THE NEXT PACIFIC TROUGH. UPPER LEVEL RIDGING REMAINS IN PLACE TOMORROW BUT HIGH CLOUDS WILL CONTINUE TO WORK THEIR WAY INTO THE REGION THROUGHOUT THE DAY AND OVERNIGHT.
438 AM EST WED JAN 13 2016 BRIEF RIDGE OF HIGH PRESSURE WILL END SNOW SHOWERS THIS MORNING BUT TEMPERATURES WILL BE COLD. WITH WIND CHILL VALUES EXCEEDING -10 IN THE HIGHER TERRAIN IN WEST VIRGINIA. NORTHWEST FLOW IN THE BOUNDARY LAYER CONTINUES TO SUPPORT LAKE ENHANCED/UPSLOPE SNOW SHOWERS IN OUR NORTHERNMOST ZONES AND RIDGE COUNTIES THIS MORNING. WIND GUSTS AND SINGLE DIGIT TEMPERATURES HAVE ALLOWED FOR WIND CHILL VALUES TO FALL BELOW ZERO ACROSS MOST OF THE FORECAST AREA AND BELOW -10F IN THE RIDGES THIS MORNING. MANY LOCATIONS WILL RISE ABOVE FREEZING.
PROGRESSIVE UPPER LEVEL FLOW WILL CONTINUE TO BRING A SERIES OF WEAKER SHORT WAVE TROUGHS ACROSS THE CONUS. THIS WILL INCREASE THE WESTERLY FLOW ON THURSDAY AFTERNOON AND THEN DRAG A PACIFIC COLD FRONT THROUGH ON THURSDAY NIGHT.
STRONGER WAA WILL BE SEEN TOMORROW AS LOW PRESSURE MOVES ACROSS THE MIDWEST.
1112 PM CST TUE JAN 12 2016 ARCTIC COLD FRONT DRAPED ACROSS THE PLAINS IS STARTING TO RETREAT TO THE NORTHEAST AS A WARM FRONT. UPPER LEVEL RIDGE ACROSS THE WESTERN CONUS WITH A TROUGH ACROSS THE GREAT LAKES. RIDGE ACROSS THE WESTERN CONUS WILL SHIFT EAST WITH THE RIDGE AXIS ACROSS THE ROCKIES BY TOMORROW AFTERNOON.
251 AM CST WED JAN 13 2016 A cooler airmass have overspread parts of northeast OK and northwest AR tonight. with a dissipating cold front analyzed across southern OK into southern AR. Increasing low-level warm air advection will result in even warmer conditions for Thursday. Improving moisture will also bring a chance of showers and perhaps a few thunderstorms by Thursday night as a cold front pushes through.
High pressure gradually moves east with return flow setting the stage for moderating temps through Thursday.
UPPER TROUGH WILL COMBINE WITH ISENTROPIC UPGLIDE/COASTAL TROUGH TONIGHT AND THURSDAY. WITH THE HIGHER WINDS WELL OFFSHORE.
THESE DOWNSLOPE WINDS ARE ALSO GIVING THE WESTERN HALF OF THE CWA LOW RH READINGS IN THE TEENS THANKS TO DEWPTS DROPPING INTO THE LOW TEENS TO SINGLE NUMBERS ABOVE/BELOW ZERO. SOME LOCALES WILL BE A FEW DEGREES WARMER THAN LAST NIGHT. UPPER TROUGH WORKING SOUTH INTO THE PACIFIC COAST IS GOING TO SHIFT UPPER RIDGE OVER THE ROCKIES/PLAINS REGION. ALL AREAS SHOULD EASILY REACH INTO THE LOWER TO MID 50S. A RIDGE OVER THE ROCKIES WILL SHIFT EAST AND FLATTEN WEDNESDAY NIGHT IN ADVANCE OF A TROUGH THAT WILL MOVE ACROSS THE PLAINS THURSDAY NIGHT.
1222 AM EST WED JAN 13 2016 A DRY COLD FRONT WILL CROSS THE REGION OVERNIGHT. THEN HIGH PRESSURE WILL PREVAIL THROUGH THURSDAY.
Mid level ridging will develop on Thursday in conjunction with southwest winds will bring above average temps to the area with some places approaching 60 degrees.
An upper level ridge axis will move east into the central and northern Rockies late tonight and Wednesday as an upper level trough exits the eastern Pacific and begins to cross the western United States. Given this warming trend along with the 850mb temperatures at 00z Thursday the highs across western Kansas should easily climb into the mid 50s.
314 AM EST WED JAN 13 2016 DRY AND COOL CONDITIONS WILL PREVAIL THROUGH THURSDAY RESULTING FROM HIGH PRESSURE OVER THE REGION.
1234 AM EST WED JAN 13 2016 HIGH PRESSURE WILL BUILD IN TONIGHT. THE CIRCULATION AROUND HIGH PRESSURE CENTERED TO THE SOUTH WILL BRING MILDER TEMPERATURES AND DRY WEATHER ON THURSDAY. A TRANSITION WILL OCCUR THURSDAY WHEN A BROAD UPPER RIDGE IS FORECAST TO PUSH INTO THE OHIO VALLEY. INCREASING CLOUDS AHEAD OF THE NEXT LOW PRESSURE SYSTEM SHOULD HELP KEEP TEMPERATURES HIGH ENOUGH FOR ALL LIQUID PRECIP SHOULD ANY SHOWERS DEVELOP LATE THURSDAY NIGHT.
213 AM EDT WED OCT 21 2015 HIGH PRESSURE SOUTH OF THE REGION WILL MAINTAIN A MILD SOUTHWEST FLOW OVER THE REGION THROUGH AT LEAST THURSDAY.
THESE WINDS WILL DIMINISH ONLY SLOWLY AND ONLY MINIMALLY LATER THIS WEEK AND INTO THE WEEKEND THANKS TO THE HIGH PRESSURE BEING REINFORCED FROM THE NORTH.
113 AM EDT WED OCT 21 2015 HIGH PRESSURE WEAKENING. COLD FRONT SINKS SOUTH THURSDAY NIGHT.
WARMER WEATHER WILL LIKELY RETURN BY THE WEEKEND AS A WEAK RIDGE OF HIGH PRESSURE DEVELOPS. SYNOPTICALLY A WEAK RIDGE WILL MOVE THROUGH THE AREA TODAY.
248 AM MST WED OCT 21 2015 A DEEP AREA OF LOW PRESSURE CENTERED OVER ARIZONA WILL GRADUALLY SHIFT TO THE EAST DURING THE DAY ON THURSDAY. MUCH COOLER AIR TODAY AND THURSDAY WILL RESULT IN TEMPERATURES WELL BELOW NORMAL.
QUIET WEATHER PATTERN CONTINUES WITH HIGH PRESSURE IN CONTROL.
HIGH PRESSURE WILL CONTINUE ITS DOMINANCE OVER THE AREA WITH FAIR SKIES AND TEMPERATURES THAT ARE A LITTLE WARMER EACH DAY.
EXPECT A MOSTLY SUNNY DAY WITH SLIGHTLY MILDER TEMPERATURES IN THE LOWER 60S.
432 AM CDT WED OCT 21 2015 THE WEATHER PATTERN FEATURING A STRONG ANTICYCLONE OVER THE ARKLAMISS IS RELATIVELY UNCHANGED WITH PRECIPITABLE WATER REMAINING NEAR OR BELOW AN INCH. DEEPER MOISTURE IS EXPECTED TO RETURN THURSDAY NIGHT AS THE LOW LEVEL FLOW INCREASES AND BECOMES MORE SOUTHERLY.
313 AM EDT WED OCT 21 2015 HIGH PRESSURE WEAKENING. COLD FRONT SINKS SOUTH THURSDAY NIGHT AND WASHES OUT OVER THE AREA.
305 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL LINGER OVER THE REGION INTO THURSDAY WITH TEMPERATURES WARMING EACH EACH DAY.
123 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL MAINTAIN DRY AND WARM WEATHER UNTIL A COLD FRONT CROSSES ON THURSDAY. TROUGH IS PROGGED TO DEEPEN AS IT DIGS TOWARD EASTERN CANADA AND DRAGS A COLD FRONT ACROSS THE REGION THURSDAY.
COLD FRONT'S WORKING THROUGH THE CWA. THE MODELS THEN SHOW THE LARGE UPPER LEVEL LOW PRESSURE TROUGH IN THE SOUTHWEST US EJECTING NORTHEAST AND INTO OUR REGION THURSDAY AND THURSDAY NIGHT.
651 AM EDT WED OCT 21 2015 AVIATION A LOW PRESSURE SYSTEM LOCATED IN THE UPPER MISSISSIPPI VALLEY THIS MORNING WILL TRACK EAST TODAY INTO ONTARIO. THIS SYSTEM WILL SEND A COLD FRONT THROUGH LOWER MICHIGAN THIS AFTERNOON AND EVENING.
A COLD FRONT WILL SWEEP THROUGH ON THURSDAY WITH ADDITIONAL SHOWERS. AS THE SFC CYCLONE MOVES THROUGH THE GREAT LAKES REGION TODAY, THE FRONT WILL MOVE NORTHWARD.
AND ARE ASSOCIATED WITH THE LAST VESTIGES OF LIFT AND MOISTURE IN THE NECK OF AN UPPER TROUGH. UPPER LEVEL RIDGE WILL WEAKEN OVER THE AREA WITH A DRY COLD FRONTAL PASSAGE OVER SE OREGON PRE-DAWN THURSDAY AND THROUGH SW IDAHO BEFORE NOON.
WEAK COLD FRONTS ARE EXPECTED TO PUSH THROUGH THE PANHANDLES EVERY FEW DAYS THROUGHOUT THE WEEK AHEAD. AS THE UPPER LOW SPINS EASTWARD THROUGH SOUTHERN AZ/NM TODAY. ADDITIONAL MOISTURE WILL CONTINUE TO BE LIFTED AHEAD OF THE LOW. WITH ANOMALOUSLY DEEP LOW PRESSURE TO OUR WEST AND RIDGING TO OUR EAST. CLEARING IS EXPECTED TO BEGIN IN WESTERN COUNTIES BY TOMORROW AFTERNOON AS THE UPPER LOW LIFTS INTO COLORADO AND A DRY SLOT WORKS INTO THE REGION.
349 AM CDT WED OCT 21 2015 MOISTURE LOADING AHEAD OF THE NEXT COLD FRONT WILL CONTINUE TODAY BRINGING ANOTHER 20% SHOT AT GETTING SOME LIGHT SHOWERS AROUND AGAIN TODAY. THE COLD FRONT THAT WILL MOVE THROUGH THE PLAINS STATES WILL BRING A GOOD BIT OF MOISTURE FROM THE EXTREME SOUTHERN GULF AND FROM THE EASTERN PACIFIC.
HIGH PRESSURE WILL REMAIN ACROSS THE CAROLINAS AND WEAKEN SOMEWHAT WHILE A SERIES OF WEAK COASTAL TROUGHS MOVE INLAND ACROSS NE FL. BUILDING RIDGE ALOFT WEST OF THE AREA RESULTS IN A WARMING TREND ESPECIALLY INLAND WHERE AFTERNOON TEMPS WARM TO THE LOWER/MID 80S BY THURSDAY WHILE COASTAL AREAS REMAIN IN THE UPPER 70S WITH THE ONSHORE FLOW.
CURRENT UPPER LEVEL RIDGING IS WEAK BUT WILL BE STRENGTHENING OVER THE NEXT FEW DAYS. RIDGE AMPLIFICATION SHOULD REACH ITS PEAK ON THU NT. THE SLOW WARMING TREND WILL CONTINUE ALONG WITH THE RIDGE AMPLIFICATION.
244 AM PDT WED OCT 21 2015 A LOW PRESSURE SYSTEM WILL MOVE EAST INTO ARIZONA TODAY WHICH WILL BRING WARMER AND DRIER WEATHER AND A NORTHERLY OFFSHORE FLOW. HIGH PRESSURE BUILDING OVER THE WEST COAST WILL BRING YET ANOTHER WARMING TREND WITH HIGH TEMPERATURES EXPECTED TO BE ABOUT 10 DEGREES ABOVE NORMAL FOR THIS TIME OF YEAR. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO GUSTY NORTHERLY FLOW WILL PERSIST TODAY AS THE UPPER LOW PRESSURE SYSTEM GRADUALLY ACCELERATES NORTHEAST ACROSS ARIZONA TODAY. IT WILL BE JUST A TOUCH WARMER TODAY WITH LESS CLOUD COVER AND UPPER HEIGHTS BEGINNING TO REBOUND. BRIEF RIDGING TONIGHT INTO THURSDAY WILL THEN TRANSITION BACK INTO MORE OF A NORTHERLY GRADIENT COMPONENT.
247 AM EDT WED OCT 21 2015 HIGH PRESSURE SOUTH OF THE REGION WILL MAINTAIN A MILD SOUTHWEST FLOW OVER THE REGION TODAY. A RATHER STRONG COLD FRONT WILL PUSH ACROSS THE REGION THURSDAY AFTERNOON AND EVENING.
THE UPPER LEVEL LOW PRESSURE SYSTEM HAS FINALLY MIGRATED INTO TEH DESERT SOUTHWEST HELPING BREAK DOWN THE RIDGE AFFECTING THE CENTRAL PLAINS. AS THE LOW SHIFTS EASTWARD. THE MID LEVEL TROUGH AXIS/FRONTAL BOUNDARY WILL CONTINUE TO SLIDE SOUTHEAST TODAY FROM ITS CURRENT POSITION ACROSS THE SANDHILLS. THE UPPER LEVEL LOW WILL BEGIN TO SHIFT MORE EASTWARD.
WITH TEMPS RANGING FROM THE LOWER 40S TO LOWER 50S. AN UPPER LOW WILL CONTINUE TO MOVE SLOWLY NORTHEAST ACROSS THE SOUTHWESTERN CONUS TODAY. WHILE THE SOUTHEAST CONTINUES TO BE UNDER A BROAD UPPER RIDGE. THE BROAD UPPER RIDGE WILL AMPLIFY DURING THE REMAINDER OF THE WORKWEEK.
AN INCREASE IN TEMPERATURES ACROSS OUR AREA WILL BE ASSOCIATED WITH 500MB HEIGHT RISES IN ADVANCE OF THE TROUGH.
636 AM EDT WED OCT 21 2015 ABOVE NORMAL TEMPERATURES AND MAINLY DRY WEATHER WILL CONTINUE TODAY IN A SOUTHERLY FLOW BETWEEN HIGH PRESSURE TO THE SOUTHEAST AND LOW PRESSURE TO THE NORTHWEST.
336 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL EXTEND OVER THE AREA THROUGH THURSDAY.
WITH HIGH PRESSURE OVER THE SRN/MID ATLANTIC BASIN IN CONTROL OF THE OVERALL WX PATTERN. TEMPS THUS FAR ARE A COUPLE OF DEGREES WARMER COMPARED TO THIS TIME LAST NIGHT. WITH HIGH PRESSURE OVER THE SRN/MID ATLANTIC BASIN IN CONTROL OF THE OVERALL WX PATTERN ACROSS THE REGION.
Otherwise, high pressure will lead to a pleasant fall afternoon with highs from 5-10 degrees above normal. A weak upper trough will pass through on Thursday, generating a few light showers and slightly cooler temperatures but overall little impact.
323 AM MDT WED OCT 21 2015 THE CLOSED LOW OVER SOUTHERN ARIZONA THIS MORNING WILL MAKE A NORTHEASTWARD TRAJECTORY OVER THE NEXT TWO DAYS. THE GREATEST LIFTING WILL OCCUR ON THURSDAY MORNING AND AFTERNOON AS THE CLOSED LOW CROSSES OVER COLORADO WITH H7 TEMPS OF 0C TO 1C. PRECIPITATION LOOKS PROBABLE IN MUCH OF THE ELEVATED AREAS OF WESTERN COLORADO ON THURSDAY AS THE LOW PRESSURE PASSES AND EJECTS THROUGH THE ROCKIES. THE MAIN UPPER LOW WILL BE FILLING AND LIFTING QUICKLY NORTHEAST AND OUT INTO THE PLAINS THURSDAY NIGHT AS UPSTREAM KICKER DIVES INTO THE GREAT BASIN.
A COLD FRONT WILL BRING A CHANCE FOR SHOWERS TONIGHT.
109 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL EXTEND OVER THE AREA THROUGH THURSDAY.
315 AM EDT WED OCT 21 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THURSDAY. A DRY COLD FRONT CROSSES THE REGION THURSDAY NIGHT. HIGH PRESSURE BUILDS BACK OVER THE AREA FOR THE UPCOMING WEEKEND. H5 RIDGE REMAINS OVR THE RGN. ANTHR MSTLY SUNNY BUT COOLER DAY. HIGH PRESSURE WILL CONTINUE TO DOMINATE THE MID ATLANTIC REGION INTO THE COMING WEEKEND WITH CONDITIONS GENERALLY REMAINING VFR. THE NEXT COLD FRONT DROPS THRU THE AREA LATE THURS NIGHT INTO FRI MORN.
WHILE BREEZY CONDITIONS WILL REMAIN POSSIBLE OVER CENTRAL AND EASTERN NORTH DAKOTA THROUGH WEDNESDAY MORNING IN THE WAKE OF THE LOW. STRATUS OVER MUCH OF CENTRAL NORTH DAKOTA WILL ALSO BEGIN TO CLEAR FROM WEST TO EAST AS UPPER LEVEL RIDGING APPROACHES THE NORTHERN PLAINS FROM THE WEST COAST. TODAY WILL FEATURE SLIGHTLY COOLER TEMPERATURES AND DRY WEATHER.
217 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE END OF THE WEEK. A PRESSURE RIDGE WILL CONTINUE TO EXTEND INTO THE FORECAST AREA FROM THE NORTHEAST RESULTING IN MOSTLY CLEAR SKIES AND CALM WINDS.
202 AM EDT WED OCT 21 2015 A WEAK COLD FRONT WILL DROP THROUGH THE AREA TONIGHT, AND RETURN AS A WARM FRONT ON WEDNESDAY WITH A FEW SHOWERS, MAINLY ACROSS THE NORTH. A SLIGHTLY STRONGER COLD FRONT WILL CROSS THE AREA ON THURSDAY WITH A BETTER THREAT OF SHOWERS. COLD FRONT CONTINUES ITS PUSH SOUTH ACROSS CENTRAL PORTION OF FORECAST AREA AT THIS TIME.
BOTH NAM AND GFS HOLD OFF THRUST OF LLVL MOISTURE ADV UNTIL EARLY THURSDAY WHEN SWRN CLOSED UPPER LOW BEGINS TO LIFT TWD THE PLAIN STATES.
602 AM EDT WED OCT 21 2015 HIGH PRESSURE SOUTH OF THE REGION WILL MAINTAIN A MILD SOUTHWEST FLOW OVER THE REGION TODAY. A RATHER STRONG COLD FRONT WILL PUSH ACROSS THE REGION THURSDAY AFTERNOON AND EVENING.
A weak cold front on Thursday is expected to bring temperatures down into the upper 50s to low 60s for the end of the week into the weekend. Additional locations that will be favored for freezing temperatures include Republic to Danville, Ione to Usk, and Coolin/Priest Lake Area. /sb 06Z TAFS: High pressure will deliver mostly clear skies and light winds through 00z. High pressure flattens Wed evening allowing a weak frontal boundary across Central WA 00-06z.
305 AM PDT WED OCT 21 2015 HIGH PRESSURE RETURNS TO THE REGION, BRINGING DRY WEATHER AND GENERALLY LIGHT WINDS FOR THE NEXT FEW DAYS.
325 AM EDT WED OCT 21 2015 ABOVE NORMAL TEMPERATURES AND MAINLY DRY WEATHER WILL CONTINUE TODAY IN A SOUTHERLY FLOW BETWEEN HIGH PRESSURE TO THE SOUTHEAST AND LOW PRESSURE TO THE NORTHWEST.
330 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE END OF THE WEEK. A PRESSURE RIDGE WILL CONTINUE TO EXTEND INTO THE FORECAST AREA FROM THE NORTHEAST RESULTING IN MOSTLY CLEAR SKIES AND CALM WINDS.
621 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL CONTINUE TO BRING A WARMING TREND THROUGH THURSDAY.
439 AM CDT WED OCT 21 2015 THE WEATHER PATTERN FEATURING A STRONG ANTICYCLONE OVER THE ARKLAMISS IS RELATIVELY UNCHANGED WITH PRECIPITABLE WATER REMAINING NEAR OR BELOW AN INCH. DEEPER MOISTURE IS EXPECTED TO RETURN THURSDAY NIGHT AS THE LOW LEVEL FLOW INCREASES AND BECOMES MORE SOUTHERLY.
131 AM EDT WED OCT 21 2015 A WEAK COLD FRONT WILL DROP THROUGH THE AREA TONIGHT, AND RETURN AS A WARM FRONT ON WEDNESDAY WITH A FEW SHOWERS, MAINLY ACROSS THE NORTH. A SLIGHTLY STRONGER COLD FRONT WILL CROSS THE AREA ON THURSDAY WITH A BETTER THREAT OF SHOWERS. COLD FRONT CONTINUES ITS PUSH SOUTH ACROSS CENTRAL PORTION OF FORECAST AREA AT THIS TIME.
AN UPPER LEVEL HIGH PRESSURE RIDGE EXTENDS OVER THE EASTERN PACIFIC AND WEST COAST. THE RIDGE WILL WEAKEN SOMEWHAT TODAY AS A WEAK IMPULSE MOVES ACROSS ON THURSDAY. THIS WILL BRING COOLER TEMPERATURES TO THE AREA AS WELL AS LOCALLY BREEZY CONDITIONS IN THE HILLS. EXPECT SLIGHTLY WARMER TEMPERATURES ACROSS THE AREA WITH HIGHS RANGING FROM THE 70S AT THE COAST TO THE 80S INLAND. AND BRING COOLER TEMPERATURES TO THE AREA.
A COLD FRONT WILL MOVE INTO THE AREA THURSDAY WITH RAIN SHOWERS LIKELY. NEXT COLD FRONT PRODUCING RAIN SHOWERS WILL APPROACH THE REGION BY THURSDAY MORNING. COLD FRONT WILL BE PASSING THROUGH THE REGION ON THURSDAY PRODUCING A VERY GOOD CHANCE FOR LIGHT RAINFALL ACROSS MUCH OF THE AREA.
237 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL CONTINUE TO BRING A WARMING TREND THROUGH THURSDAY.
444 AM CDT WED OCT 21 2015 WATER VAPOR IMAGERY INDICATES AN UPPER LEVEL LOW OVER MANITOBA. WITH SFC OBSERVATIONS INDICATING LOW PRESSURE ACROSS THE NORTHERN RED RIVER VALLEY. SENDING A COLD FRONT THROUGH THE REGION. HIGH PRESSURE MOVES OVERHEAD BY THURSDAY MORNING. LEADING TO A CHILLY NIGHT WITH MIN TEMPS NEAR FREEZING.
Upper level ridging is expected to continue across the region as well. Temperatures this morning will start off in the upper 30s to the lower 40s at most locations but then warm into the mid-upper 70s. The coolest readings will be in the east with warmer readings out across the west.
339 AM CDT WED OCT 21 2015 An upper level ridge is currently over the central U. as an upper level low is located across the southwestern U. The upper level ridge and a southwest upper level flow pattern will remain over the region through Thursday. As a result the very warm conditions will continue today and Thursday as highs warm into the upper 70s to the lower 80s each afternoon.
HIGH PRESSURE WILL BUILD TO OUR SOUTH THROUGH THURSDAY. A COLD FRONT WILL PASS THROUGH THE AREA THURSDAY EVENING.
A SERIES OF SHORT WAVE TROUGHS WILL BE LIFTING OUT OF THE UPPER LOW MOVING ACROSS THE EXTREME SOUTHWEST UNITED STATES TONIGHT AND WEDNESDAY. ALONG WITH THE SHORT WAVE TROUGHS ALOFT. THERE WILL BE A COLD FRONT MOVING SOUTHWARD ACROSS THE FORECAST AREA BETWEEN 06-12Z TONIGHT.
146 AM EDT WED OCT 21 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH THE MIDDLE OF THE WEEK.
402 AM CDT WED OCT 21 2015 A DEEP UPPER TROUGH OVER AZ. WITH READINGS INTO THE LOWER TO MID 60S BEGINNING TO WORK NWD INTO THE REGION. AS THIS UPPER LOW MOVES NORTHEAST INTO THE CENTRAL HIGH PLAINS.
A REAL MESS BEGINNING TO TAKE SHAPE AS AN UPPER LEVEL LOW OVER THE SW U.
419 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL MAINTAIN DRY AND WARM WEATHER UNTIL A COLD FRONT CROSSES ON THURSDAY. TROUGH IS PROGGED TO DEEPEN AS IT DIGS TOWARD EASTERN CANADA AND DRAGS A COLD FRONT ACROSS THE REGION THURSDAY.
A weak cold front will pass through the area tonight resulting in subtle cooling for Thursday but little chance of precipitation. These temperatures will be slightly warmer than normal for this time of year. That equates to highs in the 60s to lower 70s or roughly 10 to 15 degrees warmer than the seasonal normals. It will also result in slightly cooler high temperatures for Thursday.
Deep layer ridging remains in place with a moderate low level easterly flow advecting Atlantic moisture into the local region. Max temps will be in the lower to mid 80s.
421 AM EDT WED OCT 21 2015 HIGH PRESSURE AND A MAINLY DRY AIRMASS WILL CONTINUE ACROSS THE FORECAST AREA. EASTERLY FLOW WILL INCREASE THE LOWER LEVEL MOISTURE OVER PORTIONS OF CENTRAL GA TODAY.
AND WARM AIR ADVECTION ON NOSE OF 850 MB 30- 40KT WIND MAX ACCOUNTING FOR THE LOWER LAYER Q-VECTOR CONVERGENCE PUSHING THROUGH THE REGION AHEAD OF THE MID LEVEL TROUGH. WITH A TRAILING SURFACE COLD FRONT CROSSING THE STATE THIS AFTERNOON/EVENING. MOISTURE AGAIN IN QUESTION WITH FORECAST SOUNDINGS FAIRLY DRY IN THE LOWER LAYERS THOUGH NAM IS MORE MOIST THROUGH THE COLUMN THAN GFS. THEN SPREAD IT ACROSS THE EASTERN TWO-THIRDS OF THE CWA WITH THE STRONG FRONTOGENETIC RESPONSE TO THE COLD FRONT AND MID LEVEL TROUGH PASSAGE. 925MB THERMAL RIDGE NOSES ACROSS SRN WI AHEAD OF COLD FRONT TO ALLOW HIGHS TO REACH THE LOW 70S. MEDIUM 500 MILLIBAR RIDGE AXIS BUILDS UP ACROSS IA/MN INTO WRN WI.
However, deep layer synoptic scale lift will not commence over the region until late this afternoon or evening to the east of a large upper low wobbling eastward over Arizona, then over the Four Corners region tonight. The severe threat may last well into the evening, especially considering colder temperatures aloft moving over the region as the large upper low nears.
627 AM EDT WED OCT 21 2015 HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE END OF THE WEEK. AN UPPER RIDGE WILL CONTINUE BUILDING EAST OVER THE SOUTHEASTERN STATES TODAY WHILE HIGH PRESSURE RIDGES INTO THE REGION AT THE SURFACE.
124 AM EDT WED OCT 21 2015 BRINGING A RETURN OF MUCH WARMER AIR OVER THE NEXT FEW DAYS.
AFTERNOON HIGHS WILL WARM INTO THE LOW TO MID 60S.
WARMER WEATHER WILL LIKELY RETURN BY THE WEEKEND AS A WEAK RIDGE OF HIGH PRESSURE DEVELOPS. BUT UPPER LOW WAS TOO FAR SOUTH TO BRING ANY SHOWERS TO L. AS THE UPPER LOW CONTINUES TO MOVE WELL SOUTH INTO BAJA. EXPECT HIGHS TO REACH THE UPPER 80S IN THE WARMEST VALLEY LOCATION AND THE LOWER 80S FOR INLAND COASTAL AREAS OF LA/VTU COUNTIES. THE CENTRAL COAST WILL ALSO EXPERIENCE SOME MORNING OFFSHORE WINDS WHICH SHOULD HELP TO WARM UP SAN LUIS OBISPO INTO THE LOWER 80S. THIS WILL ALSO BE SHORT LIVED AS HIGH PRESSURE BUILDS BEHIND THE QUICK MOVING TROUGH.
Cooler highs in the 60s can be expected across far western Kansas where cloud cover will be thicker along with developing rainfall.
A CLOSED LOW. THE LOW FINALLY OPENS UP THURSDAY AND LIFTS TO THE NORTHEAST.
AN UPPER RIDGE OVER THE PACIFIC NORTHWEST WILL MOVE EAST. AND A WEAK COLD FRONT WILL MOVE INTO WESTERN WASHINGTON LATER TODAY WITH A CHANCE OF RAIN AT THE COAST AND IN THE NORTH.
348 AM CDT WED OCT 21 2015 HIGH PRESSURE BUILDING IN THIS AM. MIXED DOWN WINDS POTENTIALLY PEAK MID DAY AROUND 20G30KT WITH A WEAKENING GRADIENT THEREAFTER AS THE HIGH SLIDES OVERHEAD THIS AFTERNOON. WILL SEE FAVORABLE RADIATIONAL CONDITIONS TONIGHT AS THE HIGH CONTINUES TO THE SOUTH AND EAST.
STRONG HIGH PRES RIDGE COVERING THE CTRL-ERN CONUS FROM THE MS RVR VLY EWD HAS EXPANDED INTO THE ATLC AS IT HAS WEAKENED BY 2-3MB.
351 AM CDT WED OCT 21 2015 A COLD FRONT ACROSS WESTERN MINNESOTA EARLY THIS MORNING WILL SWEEP EASTWARD AND BE EAST OF WEST CENTRAL WI BY LATE IN THE MORNING. HIGH PRESSURE WILL SETTLE IN TONIGHT ALONG WITH DIMINISHING WIND EARLY IN THE EVENING. MANY AREAS SHOULD SEE LOWS IN THE LOWER TO MIDDLE 30S.
Oroville is getting some northeast wind draining from the Feather River Canyon and is mild in lower 70s, while much lighter winds across the northern San Joaquin valley are allowing temps to cool into the lower to mid 50s at Stockton and Modesto. Dry and mild weather will continue for NorCal heading into the weekend as high pressure dominates.
A LOW PRESSURE SYSTEM MOVING SLOWLY ACROSS SOUTHERN ARIZONA WILL CONTINUE TO BRING A CHANCE OF SHOWERS AND THUNDERSTORMS AREA-WIDE TONIGHT INTO WEDNESDAY. A DRYING TREND WILL START THURSDAY INTO THE WEEKEND ALONG WITH WARMER TEMPERATURES. THE UPPER LOW RESPONSIBLE FOR THE DEVELOPMENT OF THESE SHOWERS AND THUNDERSTORMS WAS STARTING TO EXIT SONORA MEXICO AND MOVE THROUGH SOUTHERN ARIZONA THIS MORNING. LATEST MODELS TRACK THIS UPPER LOW NORTHEAST THROUGH ARIZONA AND INTO THE FOUR CORNERS REGION BY EARLY THURSDAY. RAIN CHANCES WILL BE ON THE INCREASE AGAIN THIS MORNING INTO THE AFTERNOON HOURS BEFORE DECREASING AS THE UPPER LOW MOVES NORTH OF THE AREA. A DRYING TREND CAN BE EXPECTED IN THE WAKE OF THE LOW PRESSURE SYSTEM.
Lows at sunrise Wednesday ranging from the lower 20s NW to near 30 at Medicine Lodge.
216 AM PST TUE FEB 23 2016 DRY WEATHER WILL CONTINUE FOR THE NEXT SEVERAL DAYS AS A RIDGE OF HIGH PRESSURE DOMINATES THE PATTERN.
631 AM EST TUE FEB 23 2016 HIGH PRESSURE NORTH OF THE REGION WILL MOVE EAST TODAY AND PERMIT LOW PRESSURE TO TRACK TOWARDS THE OHIO VALLEY FROM THE SOUTHWEST OVERNIGHT TONIGHT. THE LOW PRESSURE WILL STRENGTHEN AND CROSS NORTHEAST THROUGH THE AREA ON WEDNESDAY.
A STRONG LONG WAVE RIDGE JUST OFF THE WEST COAST WILL PROGRESS EAST THROUGH TUESDAY NIGHT.
541 AM CST TUE FEB 23 2016 UPPER LEVEL LOW DIGGING ACROSS THE SOUTHERN PLAINS WITH RIDGE AMPLIFYING ACROSS THE WEST. NORTHWEST FLOW IS ACROSS THE HIGH PLAINS. A WEAK COLD FRONT IS DRIFTING SOUTHEAST ACROSS THE NORTHERN PLAINS. COLD FRONT WILL PUSH ACROSS THE AREA THIS MORNING WITH NORTHWEST WINDS ON THE INCREASE.