Aikyam-Lab/Synoptic-Bench huggingface dataset:
UPPER RIDGE HAS ESTABLISHED ITSELF OVER THE AREA WITH VERY WARM MID LEVEL TEMPERATURES AND SUBSIDENCE SUPPRESSING CONVECTIVE CHANCES. MODELS HAVE TRENDED WARMER WITH TEMPERATURES WEDNESDAY WITH BETTER MIXING AND BUMPED HIGHS UP TO BE SIMILAR TO TODAYS HIGHS. SOUTHER ZONES COULD BE A BIT COOLER WITH MORE AFTERNOON AND EVENING CLOUD COVER HELPING OUT. NAEFS SHOWED GOOD MOISTURE OVER THE AREA THU UNDER THE UPPER RIDGE. THE ECMWF BROUGHT A TROUGH INTO THE AREA ON MON WHILE THE GFS STARTED TO RETURN SW FLOW INTO THE AREA. SAT HAS THE POTENTIAL TO BE WARMER AHEAD OF A COLD FRONT.
Temperatures over most of the CWA should trend just a little warmer today than yesterday. SWly flow aloft will prevail over Norcal for the next several days with strong high pressure over the Desert SW/4-Corners area and low pressure centered off the B. A digging Ern Pac trof W of 130W on Fri will begin to strengthen SW flow over Norcal. We prefer the slower timing of the effects of the developing trof due to the strong Desert SW/4-Corners ridge.
MAINLY IN THE LOWER TO MID 60S AT 9 AM. AS THE UPPER LOW CONTINUES TO SPIN OVER EASTERN ONTARIO. DEEP UPPER TROF FOR LATE AUGUST SITUATED JUST NORTH OF LAKE HURON EARLY THIS MORNING IS FORECAST TO SLOWLY EDGE EAST OVER THE NEXT FEW DAYS. HOWEVER, ADDITIONAL PIECES OF ENERGY ARE SEEN ROTATING SOUTHWARD AROUND THE LARGE UPPER LOW AND THAT COMBINED WITH DAYTIME HEATING MAY LEAD TO A LEAST SOME SCATTERED CLOUD COVER ACROSS THE NORTH LATER THIS MORNING INTO THE AFTERNOON HOURS. 850 MB TEMPS A FEW DEGREES COOLER THAN WHAT WE HAD AROUND OUR AREA YESTERDAY WHICH SHOULD PRODUCE AFTERNOON HIGHS MOSTLY IN THE MIDDLE 70S.
1054 AM EDT TUE AUG 25 2015 CANADIAN HIGH PRESSURE WILL SETTLE TO OUR NORTH OVER THE NEXT COUPLE OF DAYS MAINTAINING MOSTLY DRY CONDITIONS THROUGH MOST OF THE WORK WEEK. AS THE HIGH SLIDES OFFSHORE OVER THE WEEKEND. AN UPPER TROF WILL DIG ACRS THE GREAT LAKES TO THE OHIO VALLEY. A COLD FRONT WILL SLOWLY PUSH TO THE ATLANTIC COASTAL PLAIN TODAY. THE SHORT TERM MODELS ARE IN GOOD AGREEMENT THAT THE UPPER TROUGH WILL BEGIN TO RETROGRADE.
957 AM EDT TUE AUG 25 2015 COOLER CONDITIONS AND SPARSE SHOWER CHANCES CAN BE EXPECTED UNTIL THE WEEKEND. ONLY MINOR ALTERATIONS TO HOURLY TRENDS AND TEMPS WERE NEEDED FOR THE MID MORNING UPDATE AS COLD AIR ASSOCIATED WITH AN ENCROACHING UPPER TROUGH ENCROACHES OVER THE UPPER OHIO REGION.
656 AM CDT TUE AUG 25 2015 SAME PESKY UPPER LOW CONTINUES TO SPIN OVER ONTARIO THIS MORNING. SHOULD SEE TEMPS BOTTOM OUT IN THE LOWER 40S HERE DURING THE NEXT FEW HOURS. HIGHS TODAY WILL REBOUND INTO THE LOW-MID 70S WEST TO UPPER 60S EAST. WHICH COULD BE COOLER IF THE CLOUD SHIELD SETS UP FURTHER WEST THAN CURRENTLY INDICATED.
A SOUTHWEST FLOW ALOFT WILL PERSIST AS THE AREA IS BETWEEN HIGH PRESSURE TO THE EAST AND TROUGH OF LOW PRESSURE TO THE WEST.
DEW POINTS SHOULD MIX OUT INTO THE LOW 50S THIS AFTERNOON MAKING IT EVEN MORE COMFORTABLE. HIGH PRESSURE CONTINUES TO BUILD INTO MIDDLE TENNESSEE WITH VFR WX THE NEXT 24 HRS.
636 AM CDT TUE AUG 25 2015 GRADUAL INCREASE IN RIDGING ALOFT OVER THE NEXT 24 HOURS WILL DO LITTLE TO CAUSE A DEVIATION FROM THE QUIET AND EXTREMELY PLEASANT CONDITIONS ACROSS THE AREA. ADDED BONUS TODAY WILL BE LIGHT WINDS NEAR THE RIDGE AXIS. STILL SEEING SOME PRETTY SIGNIFICANT DIFFERENCES IN THE LOCATION OF THE UPPER LOW AND SURFACE BOUNDARIES WHICH SPELL SOME MAJOR DIFFERENCES IN PRECIPITATION FOCUS. GFS AND NAM ARE FURTHER NORTH WITH THE LOW CENTER. TAKING THE UPPER LOW AND WARM FRONT THROUGH THE FORECAST AREA. THE CANADIAN AND EUROPEAN HOWEVER BRING THE LOW CLOSER TO THE I80 CORRIDOR WHICH WOULD RESULT IN A MUCH DRIER FORECAST FOR THE NORTHERN HALF OF THE FORECAST AREA.
NOT MUCH TO TALK ABOUT AS CANADIAN HIGH PRESSURE DRIFTS FROM THE GREAT PLAINS INTO THE GREAT LAKES AND OHIO VALLEY DURING THIS FORECAST PERIOD. TONIGHT WILL BE CLEAR WITH LOWS MOSTLY 50-55, WARMER IN URBAN CORES AND COOLER IN RURAL VALLEYS.
1028 AM EDT TUE AUG 25 2015 AVIATION SECTION HAS BEEN UPDATED BELOW QUIET AND COOL CONDITIONS FOR THE TIME OF YEAR CAN BE EXPECTED THROUGH THE WORK WEEK AS AN UPPER LOW OVER ONTARIO LIFTS NORTHEAST INTO QUEBEC AND HIGH PRESSURE AT THE SURFACE SLOWLY DRIFTS EASTWARD ACROSS THE REGION. WHICH HAS KEPT TEMPERATURES SIGNIFICANTLY WARMER THAN PREVIOUS FORECAST ACROSS THE NORTH. BUMPED UP SLIGHTLY ACROSS THE WEST AND SOUTHWEST AS THESE AREAS APPEAR LIKELY TO EITHER START THE DAY WARMER THAN MODEL FORECASTS OR RECEIVE AMPLE SUNSHINE. ADDITIONAL UPPER WAVE ROTATING AROUND THE LARGER CLOSED LOW WILL MOVE THROUGH THE AREA TONIGHT WHICH SHOULD KEEP THINGS AT LEAST PARTLY CLOUDY.
/428 AM MST/THE HIGH PRESSURE CENTER WILL SHIFT OVER INTO NEW MEXICO AND COLORADO TODAY ALLOWING FOR A MOISTENING SOUTHERLY FLOW TO DEVELOP OVER NORTHERN ARIZONA.
1101 AM EDT TUE AUG 25 2015 AN UNSEASONABLE STRONG UPPER TROUGH WILL DOMINATE THE WEATHER PATTERN OVER PENNSYLVANIA TODAY THROUGH THE REMAINDER OF THIS WEEK. COOLER AIR ALOFT WILL BRING CLOUDS.
CLOUDS ASSOCIATED WITH THE LOW PRESSURE OVER THE GRT LAKES ARE SLOWLY MOVING OUT OF THE AREA. TEMPERATURES WHICH HELD NEAR 60 FOR A LONG DURATION THIS EVENING AND EARLY MORNING HAVE QUICKLY DIPPED TO THE LOWER 50S. FORMING ANOTHER EXPANSION OF THE CLOUDS UNDER THE UPPER LOW.
/ISSUED 357 AM CDT TUE AUG 25 2015/ (Today and Tonight) What remains of a weak cold front may help initiate showers and thunderstorms this afternoon and evening. Models continue to maintain a dominate high pressure ridge aloft over the region. The GFS and ECMWF expand the upper ridge toward the east by mid week; this expansion will place more of Texas under the influence of the ridge, and it will push northerly flow aloft farther east as well.
THEY ARE DUE TO LOW PRESSURE SITTING OVER EASTERN ONTARIO.
538 AM MDT TUE AUG 25 2015 HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE CENTRAL ROCKIES TODAY. THIS SHIFT IS THE RESULT OF THE HIGH BEING NUDGED EAST AS A DISTURBANCE ROTATES AROUND THE BACKSIDE OF THE HIGH. ALSO MOISTURE THAT HAS ACCUMULATED OVER THE NORTHERN BAJA REGION WILL BEGIN TO HEAD NORTHWARD TODAY CARRIED BY THE SOUTHERLY FLOW UP THE WEST SIDE OF THE HIGH. WHILE THE LOW CENTER MOVES INTO WYOMING BY LATE WED. THE NORTHWEST TO SOUTHEAST ORIENTED TROUGH WILL PASS OVER EASTERN UT/WESTERN CO THROUGH THE DAY. LOW TEMPERATURES WILL BE MUCH WARMER THAN RECENT READINGS. THE INCREASED CLOUDS AND PRECIPITATION ON WED WILL KEEP HIGH TEMPERATURES AS MUCH AS 15-20 DEGREES COOLER THAN TODAY'S HIGHS. NUMEROUS SHOWERS/STORMS EXPECTED WEDNESDAY EVENING GIVEN TROUGH PASSAGE AND A MOIST CONDITIONALLY UNSTABLE ENVIRONMENT. WITH RIDGE AXIS BUILDING OVER UTAH.
SLIGHTLY WARMER WEATHER IS EXPECTED THROUGH TOMORROW AS HIGH PRESSURE BUILDS OVER THE SOUTHWESTERN PORTION OF THE COUNTRY.
100 PM EDT TUE AUG 25 2015 AVIATION SECTION HAS BEEN UPDATED BELOW QUIET AND COOL CONDITIONS FOR THE TIME OF YEAR CAN BE EXPECTED THROUGH THE WORK WEEK AS AN UPPER LOW OVER ONTARIO LIFTS NORTHEAST INTO QUEBEC AND HIGH PRESSURE AT THE SURFACE SLOWLY DRIFTS EASTWARD ACROSS THE REGION. WHICH HAS KEPT TEMPERATURES SIGNIFICANTLY WARMER THAN PREVIOUS FORECAST ACROSS THE NORTH. BUMPED UP SLIGHTLY ACROSS THE WEST AND SOUTHWEST AS THESE AREAS APPEAR LIKELY TO EITHER START THE DAY WARMER THAN MODEL FORECASTS OR RECEIVE AMPLE SUNSHINE. ADDITIONAL UPPER WAVE ROTATING AROUND THE LARGER CLOSED LOW WILL MOVE THROUGH THE AREA TONIGHT WHICH SHOULD KEEP THINGS AT LEAST PARTLY CLOUDY.
CHANGES ARE AFOOT IN THE ATMOSPHERE TODAY AS THE WESTERN ATLANTIC RIDGE HAS BEEN SUPPRESSED INTO FAR SOUTH FLORIDA AS AN ANOMALOUS UPPER LEVEL TROUGH BRINGS A COLD FRONT THROUGH THE PANHANDLE THIS MORNING.
UPPER LVL RIDGE REMAINS CENTERED OVER FOUR CORNERS REGION WITH UPPER LOW DIGGING INTO THE GREAT LAKES REGION. WEAK COLD FRONT ASSOCIATED WITH THIS LOW WILL MOVE SOUTH THROUGH TEXAS THROUGH THE PERIOD. SLIGHTLY COOLER LOW/MID LVL TEMPERATURES. WITH HIGHS TOMORROW A COUPLE DEGREES COOLER.
THE HIGH PRESSURE CENTER WILL SHIFT OVER INTO NEW MEXICO AND COLORADO TODAY ALLOWING FOR A MOISTENING SOUTHERLY FLOW TO DEVELOP OVER NORTHERN ARIZONA.
1124 AM EDT TUE AUG 25 2015 HIGH PRESSURE. CLOUD DECK ASSOCIATED WITH THE UPPER LOW TO OUR NORTH WILL GRADUALLY SINK SOUTHWARD AND EDGE INTO NORTHERN PORTIONS OF THE FORECAST AREA. DEEP UPPER TROF SETTLES INTO E NORTH AMERICA. BROAD CYCLONIC FLOW AROUND UPPER LOW OVER GREAT LAKES REGION WILL BE RESPONSIBLE FOR SENDING PERTURBATIONS THRU THE OH VALLEY FROM TIME TO TIME.
709 AM EDT TUE AUG 25 2015 AVIATION A LARGE SLOW MOVING LOW PRESSURE SYSTEM OVER THE NORTHERN GREAT LAKES REGION WILL CONTINUE TO PRODUCE CLOUDS AND SCATTERED SHOWERS THROUGH WEDNESDAY ALONG WITH COOL TEMPERATURES IN THE 60S.
DRY WEATHER WILL PREVAIL ACROSS MUCH OF THE CENTRAL CALIFORNIA INTERIOR DURING THE NEXT SEVERAL DAYS AS A RIDGE OF HIGH PRESSURE PARKED OVER THE FOUR CORNERS REGION REMAINS IN CONTROL.
OUR REGION REMAINS SANDWICHED BETWEEN AN UPPER LOW OVER THE NORTHERN GREAT LAKES AND AN UPPER LEVEL RIDGE CENTERED NEAR THE FOUR CORNERS REGION.
A strong upper level ridge of high pressure continues to dominate the weather picture across the Rockies and adjacent High Plains. at the surface, a weak trough of low pressure had developed across eastern portions of wyoming and colorado and this feature is progged to remain nearly unchanged through the next 24 hours. Temperatures will continue to ease upward through the next few days as the lower atmosphere slowly warms.
612 AM CDT TUE AUG 25 2015 FOR 12Z TAFS /ISSUED 129 AM CDT TUE AUG 25 2015/ HIGH PRESSURE WAS SITUATED ACROSS THE CENTRAL AND NORTHERN PLAINS THIS MORNING ALLOWING A N-NWLY FLOW TO ADVECT DRIER AIR INTO THE TN VALLEY.
935 AM EDT TUE AUG 25 2015 THE MAIN FOCUS FOR SHOWERS AND ISOLATED STORMS TODAY WILL BE OVER THE EASTERN HALF OF VERMONT TODAY AS A COLD FRONT MOVES ACROSS THIS AREA.
728 AM EDT TUE AUG 25 2015 DEEP LOW PRESSURE NEAR JAMES BAY WILL MAINTAIN COOL. HIGH PRESSURE WILL BUILD ACROSS THE GREAT LAKES WITH TEMPERATURES RETURNING TO MORE SEASONABLE READINGS. THE PERIOD STARTS OUT WITH AN UPPER LOW NEAR HUDSON BAY. A COMBINATION OF LAKE PROCESSES AND A SPOKE OF ENERGY ROTATING AROUND PARENT UPPER LOW.
HIGH PRESSURE WILL RETURN FOR THE LATTER HALF OF THE WEEK INTO THE UPCOMING WEEKEND. HIGH PRESSURE IS CENTERED JUST EAST OF THE FORECAST AREA THIS MORNING. BUT CONVECTION WILL DEVELOP OVER SOUTHERN UTAH AND THE HIGHER TERRAIN OF NORTHERN AND CENTRAL UTAH THIS AFTERNOON.
HIGH PRESSURE CONTINUES TO BUILD INTO MIDDLE TENNESSEE WITH VFR WX THE NEXT 24 HRS.
COLUMN WARMS A LITTLE HOWEVER WITH COOLER START TEMPERATURES SHOULD BE PRETTY CLOSE TO YESTERDAY.
WITH TEMP TRENDS GRADUALLY CLIMBING INTO THE LOWER 70S RANGE FOR MANY LOCATIONS. STRONG HIGH PRESSURE OVER THE MIDWEST STATES SHOULD CONTINUE TO BUILD SLOWLY EWD WELL INTO THE AFTERNOON/EVENING HRS. LOOK FOR AFTERNOON HIGHS TO CLIMB COMFORTABLY INTO THE LOWER/MID 80S FOR MOST AREAS. 77 /ISSUED 129 AM CDT TUE AUG 25 2015/ HIGH PRESSURE WAS SITUATED ACROSS THE CENTRAL AND NORTHERN PLAINS THIS MORNING ALLOWING A N-NWLY FLOW TO ADVECT DRIER AIR INTO THE TN VALLEY.
1229 PM EDT TUE AUG 25 2015 A COLD FRONT WILL SLOWLY APPROACH TODAY THROUGH TONIGHT.
A COLD FRONT IS CURRENTLY PROGRESSING SOUTHWARD ACROSS THE FORECAST AREA. DRIER AND COOLER AIR WILL FILTER IN THE REGION THROUGHOUT THE DAY. HIGHS TODAY SHOULD ONLY REACH UPPER 90S TO JUST ABOVE 90 AS THE COOLER AIR MASS MOVES IN.
612 AM CDT TUE AUG 25 2015 HIGH PRESSURE REMAINS ANCHORED OVER THE RED RIVER VALLEY TODAY.
THE MAIN AVIATION CONCERN WILL BE A WEAK COLD FRONT MOVING INTO THE PANHANDLES AROUND 18Z WHICH WILL CAUSE WINDS TO SHIFT OUT OF A NORTHERLY DIRECTION. NORTHWESTERLY FLOW COURTESY OF A HIGH AMPLITUDE RIDGE OVER THE SOUTHWESTERN U. ACROSS THE OKLAHOMA PANHANDLE AND POSSIBLY THROUGH THE TEXAS PANHANDLE AS WELL BEFORE LEESIDE TROUGHING BEGINS TO DEVELOP AND SHIFT WINDS OUT OF THE SOUTH FOR THE WEEKEND. AS THE UPPER LEVEL RIDGE DEAMPLIFIES.
/ISSUED 538 AM CST FRI FEB 26 2016/ UPPER LEVEL TROUGHING REMAINS IN PLACE ACROSS THE EASTERN HALF OF THE UNITED STATES WITH NORTHWEST FLOW REMAINING OVER THE MID SOUTH. HIGH PRESSURE CONTINUES TO BUILD IN AND WILL PROVIDE DRY WEATHER CONDITIONS ALONG WITH CONTINUED COOL AFTERNOON TEMPERATURES TODAY.
1207 PM EST FRI FEB 26 2016 HIGH PRESSURE SLOWLY BUILDS INTO THE REGION THROUGH THE WEEKEND. BUT WILL BRING A SECOND SHOT OF COOLER AIR INTO THE LOCAL AREA. AND ANOTHER UPR TROF APPROACHING THE LOCAL AREA FM THE OH VALLEY. THE UPR TROUGH MOVES OFFSHORE BY SATURDAY AFTN.
& NAM SHOWS A TROUGH OVER THE ERN U. AND A TROUGH OVER THE PACIFIC NW 12Z SAT. THE TROUGH OVER THE PACIFIC NW WILL MOVE INTO THE NORTHERN PLAINS 12Z SUN AND THROUGH THE AREA SUN INTO SUN NIGHT.
/ISSUED 628 AM EST FRI FEB 26 2016/ HIGH PRESSURE INFLUENCE WILL RESULT IN A DRY FORECAST THROUGH THE SHORT TERM. WILL SEE COOLER THAN NORMAL LOWS AGAIN TONIGHT.
345 PM CST FRI FEB 26 2016 ANOTHER BEAUTIFUL DAY AS REGIONAL HIGH PRESSURE HAS MAINTAINED SUNNY SKIES AND VARIABLE BREEZES. AS WESTERN CONUS UPPER RIDGING AMPLIFIES.
314 PM CST FRI FEB 26 2016 High pressure will set up over the northern Gulf states Fri/Sat, after precipitation free H50 short waves pushes through this evening.
DANGEROUS FIRE WX CONDITIONS SATURDAY ESPECIALLY OVER N-CNTRL KS WHERE WINDS/RH HAVE NECESSITATED ISSUANCE OF A RED FLAG ALOFT: THE WRN USA RIDGE WILL DEAMPLIFY AND BE FORCED E ONTO THE PLAINS TONIGHT. SO NW FLOW WILL BACK AND BECOME W TOMORROW AS THE RIDGE AXIS MOVES OVERHEAD. SURFACE: A LEE-SIDE TROF WILL MATURE THIS AFTERNOON AND THEN BROADEN AND EXPAND E OVER THE PLAINS TONIGHT. WITH HIGH PRES OVER THE GULF COAST AND A COLD FRONT DROPPING TO THE US-CAN BORDER TOMORROW AFTERNOON.
THEREFORE SE ND SHOULD SEE TEMPS INTO THE 50S ON SATURDAY AS WE SHOULD HAVE A DECENT SOLAR COMPONENT PLUS THE LOWER ALBEDO. UPPER RIDGE OVER THE ROCKY MNTS WILL BREAK DOWN TONIGHT AND SATURDAY.
A MODERATING TREND IN TEMPERATURES ARE EXPECTED WITH REESTABLISHED SEFLOW WITH LOWS TONIGHT AROUND 5-7 DEGREES WARMER THAN LAST NIGHT AND LOWS SATURDAY NIGHT WARMER STILL.
THEN A COLD FRONT WILL DROP SOUTH INTO THE BORDER REGION SATURDAY AFTERNOON. WE KEPT SATURDAY DRY AS MOST OF THE MODELS SUGGEST THE PRECIPITATION WITH THE COLD FRONT WILL REMAIN NORTH OF THE FRONT THROUGH THE AFTERNOON.
SUBJECTIVE 12Z UPPER AIR ANALYSIS INDICATES NORTHWESTERLY UPPER-LEVEL FLOW ACROSS THE CENTRAL US IN A RIDGE-WEST/TROUGH-EAST REGIME.
AT THE SURFACE A RIDGE OF HIGH PRESSURE WAS SLIDING THROUGH THE FORECAST AREA PROVIDING QUIET WEATHER. MUCH WARMER AIR THEN PUSHES INTO THE REGION TONIGHT INTO EARLY SATURDAY MORNING WARMING FROM -8 C THIS AFTERNOON TO +6 C BY SATURDAY AFTERNOON. THERE ARE HINTS IN THE ECMWF THAT WE COULD BE A LITTLE WARMER.
SURFACE RIDGING OVER EAST TEXAS IS EXPECTED TO SLOWLY MOVE EASTWARD ACROSS THE GULF COAST STATES NOW THROUGH SATURDAY. WITH THE CENTER OF THE RIDGE MOVING TOWARD ALABAMA. LOOK FOR MINIMAL CLOUD COVER ACROSS CENTRAL ALABAMA UNDER THIS RIDGE AND WITH THE COOLEST TEMPERATURES OF THE WEEK ON TAP FOR TONIGHT.
TONIGHT THROUGH SATURDAY NIGHT A QUICK MOVING TROUGH AND ASSOCIATED COLD FRONT WILL ZIP THROUGH THE AREA ON SATURDAY WITH IMPACTS FROM THIS SYSTEM EXPECTED THROUGH SATURDAY NIGHT. WILL BE WITH THE COLD FRONT. A FLASH OR TWO OF LIGHTNING CAN NOT BE RULED OUT THIS TIME OF YEAR EITHER AS THERE WILL BE SOME INSTABILITY WITH THE TROUGH. SO AREAS OF THE TETONS AND THE BRIDGERS. THE LOWER ELEVATIONS WILL LIKELY SEE LESS THAN 2 INCHES ALL AREAS.
WARMER WEATHER WILL BE IN STORE FOR THE UPCOMING WEEKEND.
840 AM PST FRI FEB 26 2016 WEAK ONSHORE FLOW WILL CREATE SLIGHTLY COOLER WEATHER IN THE COAST AND VALLEYS AND SOME WARMING FOR THE MOUNTAINS AND DESERTS THROUGH THE WEEKEND.
High pressure with clear skies will dominant tonight. Overnight lows are mainly expected to be in the lower to middle 30s across the area. A few normally colder areas could briefly reach freezing for around an hour, but due to the short duration and limited scope, a freeze warning does not appear necessary.
SLIGHTLY TIGHTER SURFACE PRESSURE GRADIENTS WILL KEEP SLIGHTLY ELEVATED WINDS FOR THE REMAINDER OF THIS AFTERNOON BUT SHOULD BECOME LIGHT THIS EVENING AS THE RIDGE SETTLES IN OVER THE GULF COAST STATES AND GRADIENTS RELAX. SLIGHTLY WARMER ON SATURDAY.
LOWS WILL BE ABOUT 10 DEGREES WARMER THAN LAST NIGHT. AND NO FROST OR FREEZING TEMPERATURES ARE EXPECTED. SUNNY AND WARMER CONDITIONS WILL PREVAIL THIS WEEKEND WITH TEMPERATURES CONTINUING TO MODERATE TO ABOVE NORMAL.
This will enhance the lee trough development, and subsequently, the pressure gradient.
A RIDGE OF HIGH PRESSURE EXTENDED INTO THE DESERT SOUTHWEST AND THEN NORTH ACROSS THE INTERMOUNTAIN WEST WHILE A TROUGH EXTENDED FROM CENTRAL CANADA INTO THE SOUTHEASTERN STATES. HIGH PRESSURE IS CENTERED OVER THE LOWER MS VALLEY REGION. HEIGHTS WILL RISE AS MID LEVEL RIDGING BUILDS ACROSS THE OH VALLEY AND SOUTHEAST. WITH SOUTHERLY TO SOUTHWESTERLY LOW LEVEL FLOW AND INCREASINGLY WESTERLY FLOW AT MID LEVELS AS THE RIDGING BUILDS IN. THE SOUTHERLY FLOW AROUND THE HIGH ON SATURDAY NIGHT SHOULD FAVOR A RIDGE VALLEY TEMPERATURE SPLIT. WHILE THE RIDGES REMAIN IN THE UPPER 30S TO NEAR 40. FLURRIES CONTINUE TO DIMINISH FROM WEST TO EAST WHILE LOW STRATOCU IS LEADING TO CIGS IN THE LOWER END OF VFR OR MVFR RANGE. THE LOW CLOUDS SHOULD LINGER FOR MUCH OF THE FIRST 12 TO 18 HOURS OF THE PERIOD.
HIGH PRESSURE IN CONTROL WITH WINDS SHIFTING SLOWLY FROM ENE TO ESE THROUGH THE PERIOD.
high pressure will slide over the region today which should result in mostly sunny skies and warmer temperatures as weak warm air advection gets underway. with slightly cooler conditions expected across far north-central Missouri. a notable warming trend will get underway tomorrow as a leeside trough develops across the Front Range thanks to incoming northern stream energy approaching from the Intermountain West. afternoon highs on Saturday should easily climb into the lower to middle 60s across much of the area.
THEREFORE SE ND SHOULD SEE TEMPS INTO THE 50S ON SATURDAY AS WE SHOULD HAVE A DECENT SOLAR COMPONENT PLUS THE LOWER ALBEDO. UPPER RIDGE OVER THE ROCKY MTNS WILL BREAK DOWN TONIGHT AND SATURDAY.
1246 PM EST FRI FEB 26 2016 A DRY COLD FRONT WILL CROSS THE REGION EARLY TODAY THEN HIGH PRESSURE BUILDS IN FROM THE WEST THROUGH SATURDAY. THE HIGH WILL FOLLOWED BY A COLD FRONT MOVING THROUGH BY MIDWEEK. CURRENT FORECAST REMAINS ON TRACK FOR THE AFTERNOON AS 1033 MB HIGH PRESSURE OVER EASTERN TEXAS WILL GRADUALLY BUILD TO THE EAST.
1250 PM EST FRI FEB 26 2016 STRONG NORTHWEST WINDS WILL CONTINUE TO GENERATE UPSLOPE SNOW SHOWERS WEST OF THE BLUE RIDGE THROUGH THIS MORNING. HIGH PRESSURE BUILDS TONIGHT.
106 PM MST FRI FEB 26 2016 LATEST SATELLITE IMAGERY AND UPPER AIR ANALYSIS DEPICT A FAIRLY CLEAR SKY OVER THE EASTERN GREAT BASIN AND THE HIGH PLAINS AHEAD OF THE UPPER LEVEL RIDGE AXIS. TO THE WEST A LONG BAND OF CLOUD COVER WAS MOVING ONSHORE WITH AN UPPER LEVEL TROUGH. AT THE SURFACE A TROUGH HAD MOVED THROUGH DURING THE LATE NIGHT/EARLY MORNING HOURS. THE BREEZY WINDS HAVE SHIFTED EAST AHEAD OF THE RIDGE. FOR TONIGHT LOW LEVEL WARM AIR ADVECTION WILL ALLOW LOWS TO BE A FEW DEGREES WARMER THAN LAST NIGHT. PREVIOUS HIGH TEMPERATURE FORECAST IS WARMER THAN ALMOST ALL MODEL DATA. COULD SEE TEMPERATURES A COUPLE DEGREES WARMER THAN THAT.
MOSTLY SUNNY AND WARMER WITH RETURN FLOW BY THE AFTERNOON AS HIGH PRESSURE ADVANCES EAST INTO THE NORTH CENTRAL GULF.
THE CLOUDS ARE ASSOCIATED WITH A SMALL AREA OF MOISTURE THAT CROSSED THROUGH THE AXIS OF THE HIGH PRESSURE RIDGE THAT WILL REMAIN OVER THE STATE TODAY.
SOME BREAKS IN THE CLOUDS EARLY THIS MORNING ACROSS PARTS OF CENTRAL IL AND EASTERN WI BUT THE LOW LEVELS REMAIN FAIRLY MOIST SO EXPECTING PARTLY TO MOSTLY CLOUDY SKIES TODAY. GENERALLY EAST OF I-57 WILL BE TRICKY AND HAVE MAINTAINED COOLER TEMPS ACROSS THIS AREA. LOW PRESSURE WILL MOVE INTO THE NORTHERN PLAINS TONIGHT.
BY TONIGHT THE CENTER OF THE HIGH WILL MOVE EAST AND SOUTHERLY FLOW WILL RETURN SLOWLY PULLING SOME MOISTURE NORTHWARD. HIGHS ON SATURDAY SHOULD CLIMB TO THE LOW/MID 70S WITH BREEZY SOUTHERLY WINDS.
AND SATURDAY LAKE-EFFECT SNOW SHOWERS WILL QUICKLY COME TO AN END EARLY THIS MORNING ACROSS FAR NORTH CENTRAL WISCONSIN AS HIGH PRESSURE TURNS WINDS TO A WESTERLY DIRECTION. HIGH PRESSURE WILL PASS TO THE SOUTH TODAY. KEEPING THE WEATHER DRY THROUGH SATURDAY AS UPPER LEVEL RIDGING HOLDS ACROSS THE WESTERN GREAT LAKES. THE MAIN STORY WILL BE TEMPERATURES EARLY THIS WEEKEND AS THE RIDGE SLIDES OFF TO THE EAST. ALLOWING WARMER AIR TO ADVECT IN FROM THE SOUTH AS 850 MB TEMPERATURES CLIMB INTO THE SINGLE DIGITS ABOVE ZERO. THIS WARMER AIRMASS WILL ALLOW DAYTIME HIGHS TO SOAR INTO THE 40S ACROSS THE AREA ON SATURDAY.
A COLD FRONT WILL SPREAD LIGHT RAIN INTO WESTERN WASHINGTON THIS AFTERNOON AND EVENING. POST-FRONTAL SHOWERS WILL DIMINISH SATURDAY MORNING AS AN UPPER LEVEL RIDGE MOVES OVER THE AREA.
AS THE TROUGH AXIS FINISHES PUSHING THROUGH. NW WINDS IN THE 5-10KT RANGE THIS AFTERNOON SHOULD BECOME LIGHT/VARIABLE AFTER SUNSET AS HIGH PRESSURE MOVES ACROSS THE GULF COAST TONIGHT.
UPPER TROF OVERHEAD RESULTING IN SOME SCATTERED MID/HIGH CLOUDS. WHICH MAY HAVE A VERY MINOR IMPACT ON THE HIGH TEMPERATURE FORECAST. A WEAK SURFACE TROF PASSES THROUGH SATURDAY NIGHT WHICH.
Will aim for highs ranging from the upper 30s in the Blue Grass to the middle 40s in the Bowling Green region, though there are some rather large breaks in the cloud cover upstream and if we can get more sunshine than currently progged then temps may get a little warmer than forecast. Return surface flow and rising heights, plus plenty of sunshine, will result in much warmer temperatures on Saturday with afternoon readings well into the 50s.
224 PM EST FRI FEB 26 2016 HIGH PRESSURE WILL CONTINUE AT THE SURFACE OVER THE CWFA THROUGH THE SHORT TERM PERIOD.
WINDS LOOK TO DIMINISH TO 3 TO 7 MPH OVERNIGHT WITH THE HIGHEST WINDS ALONG THE EAST COAST. OVERALL THESE SPEEDS DON'T IMPACT WIND CHILLS VERY MUCH, WITH THE LOWEST READINGS LIKELY ONLY A DEGREE OR TWO BELOW THE ACTUAL TEMPERATURE.
ALSO LOWERED LOW TEMPS TONIGHT BY A DEGREE OR SO GIVEN A COOLER START TO THE NIGHT. DRY CONDITIONS WILL CONTINUE WITH WARMER TEMPS. THE UPPER LEVEL RIDGE BUILDS OVERHEAD WITH GUSTY SW WINDS BRINGING WARMER AIR INTO THE REGION. TEMPS COULD BE WARMER THAN WHAT IS CURRENTLY FORECAST. CURRENTLY HAVE HIGHS IN THE LOW TO MID 50S ACROSS ILLINOIS AND IN THE MID TO UPPER 40S ACROSS NORTHWEST INDIANA. THE STRONG WINDS AND WARMER TEMPS SHOULD QUICKLY MELT THE SNOW LEADING TO VERY SOGGY CONDITIONS GIVEN THE HIGH MOISTURE CONTENT OF THE SNOW.
THIS IS THE RESULT OF AN AXIS OF A STRONG RIDGE OF HIGH PRESSURE POSITIONED FROM WESTERN MISSOURI TO TEXAS LOOKING TO MAINTAIN A MODERATE TO STRONG OFFSHORE FLOW THROUGH MID MORNING. WINDS AND SEAS ARE EXPECTED TO LOWER BY LATE IN THE MORNING AS THE RIDGE AXIS MOVES CLOSER TO THE CENTRAL GULF COAST. HIGH PRESSURE AXIS FROM KANSAS TO TEXAS MOVES EAST ACROSS THE FORECAST AREA TODAY AND TONIGHT. OVERNIGHT LOWS DOWN TO AT/OR A FEW DEGREES BELOW FREEZING OVER THE INTERIOR.
HIGH PRESSURE WAS CENTERED OVER THE ARK-LA-TEX AREA THIS AFTERNOON. THE HIGH WILL CONTINUE TO MOVE SOUTHEAST AND REACH THE GULF COAST OVERNIGHT. WINDS WILL BE FROM THE SOUTHWEST WHICH WILL ALLOW WARMER AIR TO MOVE INTO THE REGION. TEMPERATURES WILL BE SOME 10 TO 15 DEGREES WARMER THAN TODAY WITH HIGHS MAINLY IN THE LOWER 60S.
A SHORT WAVE TROUGH WAS MOVING SOUTHEAST ACROSS WISCONSIN AND EASTERN IOWA. TEMPERATURES ARE WARMER IN THE WAKE OF THIS SYSTEM THAN AHEAD OF IT. A WARM FRONT WILL MOVE EAST ACROSS THE AREA TONIGHT. HOWEVER IN THE WAKE OF THE WARM FRONT. DUE TO THIS LOWERED THESE DEW POINTS BY 5F TO TREND TOWARD THESE LOWER DEW POINTS.
234 PM EST FRI FEB 26 2016 HIGH PRESSURE BUILDS IN FROM THE WEST THROUGH SATURDAY.
339 PM CST FRI FEB 26 2016 (Tonight and Saturday) The surface anticyclone has settled over east TX this afternoon, with southerly winds increasing to 8-12 mph across west central TX. Skies remain mostly sunny with current temperatures in the low to mid 60s. This will keep temperatures above freezing across West Central TX, with overnight lows ranging from the mid 30s in low- lying areas to the lower 40s, mainly across the Big Country. We'll maintain mostly sunny skies throughout the afternoon with temperatures warming into the lower 70s across much of the area.