Aikyam-Lab/Synoptic-Bench huggingface dataset:
943 PM CST SAT FEB 6 2016 NE-SW ORIENTED TROF AXIS ALOFT CONTINUES TO MOVE EAST ACRS THE LOWER MS VALLEY.
HIGH PRESSURE WILL SLIGHTLY MERGE INTO THE REGION OVERNIGHT JUST ENOUGH TO KEEP THE REGION QUIET. ON SUNDAY NIGHT, WE MAY SEE SOME INCREASING CLOUDS LATE, AHEAD OF AN APPROACHING GREAT LAKES TROUGH, AND ALSO ON THE VERY OUTER EDGES OF A DEEP OFFSHORE CYCLONE.
SFC TEMPS WILL BE CLOSE TO THE FREEZING MARK. ESPECIALLY ON BRIDGES AND OVERPASSES. TODAYS TEMPS IN THE LOW TO MID 30S WITH 40S ALONG THE BUFFALO RIDGE HAVE CREATED A DENSER SNOWPACK /LESS LIKELY TO BLOW AROUND/.
218 PM PST SAT FEB 6 2016 Strong high pressure will build over the Pacific Northwest Sunday bringing dry weather and light winds.
/ISSUED 345 PM CST SAT FEB 6 2016/ AN UPPER LEVEL LOW OVER SOUTHEAST TEXAS WILL CONTINUE TO MOVE SOUTHEAST INTO LOUISIANA TONIGHT. THE LOW CLOUDS ACROSS MOST OF THE EASTERN TWO-THIRDS OF NORTH TEXAS WILL BE ON THE DECREASE AFTER SUNSET. ANOTHER COLD FRONT WILL MOVE INTO NORTH TEXAS SUNDAY AFTERNOON AND MOVE THROUGH THE SOUTHEASTERN ZONES SUNDAY NIGHT. AS HIGH PRESSURE BUILDS IN BEHIND THE FRONT.
COLD FRONT WILL MOVE OVER NORTHERN OKLAHOMA AROUND 12Z AND CLEAR CENTRAL/SOUTHWEST OKLAHOMA TERMINALS AND KSPS BY 18Z.
CLOUDS HAVE BEGUN TO SLOWLY DECREASE ACROSS THE FORECAST AREA AS UPPER LEVEL TROUGH IS MOVING THROUGH TONIGHT. WEAK UPPER LEVEL RIDGING WILL MOVE OVER THE EASTERN TN VALLEY SUNDAY WITH TEMPERATURES SEVERAL DEGREES WARMER THAN TODAY.
751 PM MST SAT FEB 6 2016 HIGH PRESSURE WILL REMAIN THE DOMINANT WEATHER FEATURE OVER THE SOUTHWESTERN UNITED STATES THROUGH MUCH OF THE UPCOMING WEEK. STRENGTHENING HIGH PRESSURE OFF THE CALIFORNIA COAST IS EVIDENT ON WATER VAPOR IMAGERY THIS EVENING. SOME SPILLING OVER THE RIDGE AND INTO NORTHERN ARIZONA. NOTHING THICK ENOUGH TO HAVE ANY NEGATIVE IMPACT ON TEMPERATURES AND MID EVENING READINGS WERE GENERALLY IN THE LOW/MID 60S AS OF 0245Z. LOWS IN THE LOW TO MID 40S ACROSS THE DESERTS SEEMS MORE THAN PLAUSIBLE. RIDGING WILL REMAIN IN PLACE ACROSS THE AREA WITH STEADY WARMING OF THE BOUNDARY LAYER.
CLOUDS WILL DECREASE HEADING INTO TONIGHT AS THE LONG WAVE TROUGH AXIS MOVES OUT OF THE REGION. AN UPPER LEVEL TROUGH FROM THE NORTHERN PLAINS WILL BEGIN TO DIG SOUTHWARD SUNDAY.
925 PM EST SAT FEB 6 2016 A DEEP TROUGH OF LOW PRESSURE WILL CONTINUE TO DEVELOP ACROSS THE EASTERN UNITED STATES WITH CHANCES FOR SNOW SHOWERS AND TEMPERATURES SLOWLY RETURNING TO NEAR NORMAL VALUES. VERY QUIET WEATHER EXPECTED ON SUNDAY AS WEAK RIDGE BUILDS INTO OUR CWA. AND BEST MOISTURE ASSOCIATED WITH COLD FRONT IS LOCATED JUST NORTH OF OUR FORECAST AREA. SO EXPECT HIGHS MAINLY IN THE UPPER 20S MOUNTAINS TO MID/UPPER 30S WARMER VALLEYS. WHICH MAY KEEP TEMPS SLIGHTLY COOLER.
AN UPPER LOW OVER THE REGION THIS AFTERNOON IS BEGINNING TO HEAD OUT TO THE EAST. AND WITH THE DEPARTURE OF THE LOW THEY WILL BE EVEN HARDER TO FIND. IN THE WAKE OF THE UPPER SYSTEM A RIDGE OF HIGH PRESSURE WILL PROMOTE VERY LIGHT TO CALM WINDS OVERNIGHT WITH CURRENT CONSIDERABLE SURFACE DEWPOINT DEPRESSIONS SUGGESTING RADIATIONAL COOLING WITH BE QUITE EFFICIENT. THINKING IS THAT LOWS TONIGHT WILL ACHIEVE VALUES ON THE LOWEST SIDE OF AVAILABLE GUIDANCE AND FORECAST MINIMUMS WERE TWEAKED DOWN A BIT IN MANY CASES.
A COLD FRONT PUSHED THROUGH THE KEYS EARLIER THIS EVENING. THE COLD FRONT MADE ITS WAY SOUTH OF THE AREA. IT LOOKS LIKE A LOW PRESSURE HAS STARTED TO DEVELOP EAST OF NORTH FLORIDA OVER THE ATLANTIC WATERS. THIS LOW WILL STRENGTHENING OVERNIGHT AS IT MOVES NORTHEAST PARALLEL TO THE COAST OF THE CAROLINAS ON SUNDAY.
A FEW HIGH CLOUDS ARE PRESENT ACROSS THE FAR NW COUNTIES WRAPPING AROUND THE UPPER LOW WITH ADDITIONAL HIGH CLOUDS JUST SE OF THE FORECAST AREA.
NORTH WINDS SHOULD RELAX QUICKLY THIS EVENING AS HIGH PRESSURE SETTLES IN OVER THE AREA. AROUND SUNRISE IT SHOULD BE OVER THE MAJOR HUBS WITH CALM/LIGHT WINDS THEN WINDS BECOME MORE SOUTHWEST TO SOUTHEAST AS THE HIGH SLIDES AWAY TO THE EAST. ON SUNDAY A LARGE PLUME OF HIGH LEVEL PACIFIC MOISTURE SHOULD OVERSPREAD THE AREA BRINGING CIRRUS TO THE REGION AS LARGE UPPER TROUGH OVER THE GREAT LAKES DEEPENS.
SNOWFALL WILL WORK TO TAPER OFF OVERNIGHT AS HIGH PRESSURE GAINS STRENGTH OVER THE AREA. SUNDAY NIGHT THROUGH SATURDAY A LONG WAVE HIGH PRESSURE RIDGE OVER THE WESTERN U. SOME CLOUDS MAY SPILLOVER THE RIDGE AND SOME LEE ENHANCED CLOUDS MAY ALSO FORM BUT OVERALL THE AIR MASS WILL BE DRY WITH FEW CLOUDS OVERALL.
335 PM PST SAT FEB 6 2016 Strong high pressure will build over the Pacific Northwest Sunday bringing dry weather and light winds.
647 PM EST SAT FEB 6 2016 CLOUDS WILL BE ON THE INCREASE LATER TONIGHT INTO SUNDAY AS A COLD FRONT APPROACHES.
446 PM CST SAT FEB 6 2016 LIGHT SRLY TO VRB WINDS WILL BE SEEN OVERNIGHT AS HIGH PRESSURE SLOWLY SHIFTS EAST.
AS THIS SYSTEM BROADENS AND MOVES SOUTHEASTWARD TOWARD THE GREAT LAKES REGION IT WILL FORCE A WEAK COLD FRONT SOUTHWARD INTO THE AREA RESULTING IN NORTHWESTERLY SURFACE WINDS BY MORNING. HIGH AMPLITUDE RIDGING SETS UP ACROSS THE WESTERN U. LEESIDE TROUGHING SETS UP AND WE WILL SEE A GRADUAL WARMING OF TEMPERATURES.
CU HAS DISSIPATED AND ALL THAT IS NOTED ON REGIONAL IR IMAGERY IS THIN CIRRUS THAT WILL BE SPILLING SOUTHWARD INTO OUR REGION IN THE WAKE OF A STRONG UPPER LEVEL TROUGH AXIS. THIS RIDGE AXIS WILL SHIFT SOUTH AND EAST OVERNIGHT. OUR SFC WINDS ARE SLACKING AND STILL NW WITH HIGH PRESSURE AT KTPL AND DRIFTING E.
DRY AND MUCH WARMER FOR THE COMING WEEK. WATER VAPOR IMAGERY SHOWS HIGH PRESSURE OVER THE EASTERN PACIFIC WATERS WITH A WEAK TROUGH CURRENTLY MAKING ITS WAY AHEAD OF THIS FEATURE ACROSS THE FOUR CORNERS AND SOUTHWEST INTO SRN CALIFORNIA. TEMPERATURES REMAIN IN THE LOWER 40S TO THE LOWER 60S. VFR WITH A FEW PATCHES OF CIRRUS AS HIGH PRESSURE BUILDS IN FROM THE WEST. LARGE SCALE HIGH PRESSURE WILL CONTINUE TO SLOWLY PHASE IN FROM THE WEST FOR MUCH OF THE COMING WEEK. DIRTIED UP A BIT BY A WEAK LOW MEANDERING THROUGH THE BASE OF THE RIDGE SOUTH OF THE BORDER.
UPPER LOW OVER AL WILL CONTINUE TO MOVE EAST OVERNIGHT. HOWEVER THERE STILL COULD BE SOME SCT CLOUDS ARND OVERNIGHT THAT MAY KEEP TEMPS A FEW DEGREES WARMER THAN MOS VALUES. CLOUDS WILL DECREASE HEADING INTO TONIGHT AS THE LONG WAVE TROUGH AXIS MOVES OUT OF THE REGION. AN UPPER LEVEL TROUGH FROM THE NORTHERN PLAINS WILL BEGIN TO DIG SOUTHWARD SUNDAY.
1046 PM EST SAT FEB 6 2016 HIGH PRESSURE WILL KEEP FAIR AND RELATIVELY MILD CONDITIONS IN PLACE FOR THE REMAINDER OF THE WEEKEND. COAST AND CLIPPER LOW STREAKING INTO NRN MN ARE SANDWICHING THE HIGH. MAX TEMPS SHOULD REACH THE LOW-MID 40S OR +5-10F ABOVE NORMAL FOR EARLY FEB. CONSIDERABLE SPREAD AND UNCERTAINTY EXISTS WITH THE LEADING EDGE OF UPPER TROUGH PROGRESSING THROUGH THE OH VALLEY APPROACHING THE APPALACHIANS BY THE END OF THE PERIOD.
252 PM PST SAT FEB 6 2016 HIGH PRESSURE WILL BUILD OVER THE GREAT BASIN, KEEPING DRY CONDITIONS IN PLACE WITH GENERALLY LIGHT WINDS AND VALLEY INVERSIONS. HIGH PRESSURE CONTINUES TO BUILD OVER THE REGION OVER THE NEXT FEW DAYS WITH LIGHT WINDS AND DRY CONDITIONS. MOSTLY CLEAR SKIES TONIGHT WILL LEAD TO STRONG COOLING AND PATCHY FREEZING FOG IN THE VALLEYS OF THE NORTHERN SIERRA TONIGHT AND INTO SUNDAY MORNING. SOME RIDGE TOP GUSTS COULD APPROACH 40 MPH ESPECIALLY IN MONO COUNTY AND COULD IMPACT RECREATIONAL OUTDOOR AND BACK COUNTRY ACTIVITIES.
633 PM EST SAT FEB 6 2016 A DEEP TROUGH OF LOW PRESSURE WILL CONTINUE TO DEVELOP ACROSS THE EASTERN UNITED STATES WITH CHANCES FOR SNOW SHOWERS AND TEMPERATURES SLOWLY RETURNING TO NEAR NORMAL VALUES. UPPER LEVEL TROUGH OVER EASTERN CANADA LOOKS TO BE STAYING NORTH OF OUR AREA AS IT MOVES EAST TONIGHT. VERY QUIET WEATHER EXPECTED ON SUNDAY AS WEAK RIDGE BUILDS INTO OUR CWA. AND BEST MOISTURE ASSOCIATED WITH COLD FRONT IS LOCATED JUST NORTH OF OUR FORECAST AREA. SO EXPECT HIGHS MAINLY IN THE UPPER 20S MOUNTAINS TO MID/UPPER 30S WARMER VALLEYS. WHICH MAY KEEP TEMPS SLIGHTLY COOLER.
1036 PM EST SAT FEB 6 2016 HIGH PRESSURE WILL KEEP FAIR AND RELATIVELY MILD CONDITIONS IN PLACE FOR THE REMAINDER OF THE WEEKEND. COAST AND CLIPPER LOW STREAKING INTO NRN MN ARE SANDWICHING THE HIGH. MAX TEMPS SHOULD REACH THE LOW-MID 40S OR +5-10F ABOVE NORMAL FOR EARLY FEB. CONSIDERABLE SPREAD AND UNCERTAINTY EXISTS WITH THE LEADING EDGE OF UPPER TROUGH PROGRESSING THROUGH THE OH VALLEY APPROACHING THE APPALACHIANS BY THE END OF THE PERIOD.
345 AM EDT THU SEP 24 2015 A LARGE AREA OF HIGH PRESSURE OVER EASTERN CANADA WILL DRIFT SOUTHEAST ACROSS NEW ENGLAND THIS WEEKEND. A RIDGE FROM THIS HIGH WILL CONTINUE TO DOMINATE THE WEATHER OVER THE LOCAL AREA.
A BROAD/WEAK UPPER LOW POSITIONED OVER THE FLORIDA PANHANDLE WAS SENDING HIGH ALTITUDE MOISTURE NORTHWARD. THIS LOWERED BIGGER PICTURE LOW TEMPERATURES INTO THE LOWER 60S FOR OUR CENTRAL AREAS.
WARMER TOMORROW. THE WEAK WARM FRONT CURRENTLY ACROSS NORTHWEST WISCONSIN WILL GRADUALLY DRIFT SOUTHWARD AND DISSIPATE. TEMPS A LITTLE WARMER DUE TO WARM AIR ADVECTION TAKING PLACE THROUGH THE DAY. WEAK UPPER RIDGING BUILDING IN THURSDAY NIGHT INTO FRIDAY WILL BRING MAINLY DRY CONDITIONS FOR MOST AREAS OF THE NORTHLAND.
SHOULD SEE SLIGHTLY COOLER TEMPERATURES ON FRIDAY WITH THE SHOWER ACTIVITY AND MORE CLOUD COVER IN PLACE. ANOTHER RAIN-FREE DAY IS EXPECTED ACROSS SOUTH TEXAS WITH UPPER LEVEL RIDGING STILL CONTROLLING THE SENSIBLE WEATHER, THOUGH A CHANGE IS EXPECTED BY LATE TONIGHT. THE RIDGING SHIFTS OFF TO THE WEST AND ALLOWS WEAK MID-LEVEL IMPULSES TO DIVE DOWN FROM THE NORTH- NORTHWEST ACROSS THE REGION.
WARM AND DRY WEATHER WILL CONTINUE THROUGH THE SHORT TERM PERIOD AS STRONG UPPER LEVEL RIDGE REMAINS THE DOMINANT FEATURE. WEAK COLD FRONT WILL BEGIN TO PUSH INTO OUR AREA LATE FRIDAY NIGHT.
THE RIDGE AXIS WILL BE MAINLY OVER IOWA AND WISCONSIN FRIDAY NIGHT AS IT SLIDES SOUTHEAST. MID LEVEL RIDGING WILL BE BUILDING ACROSS THE ROCKIES AND THE NORTHERN PLAINS INTO THE WEEKEND.
WARM AND DRY CONDITIONS PREVAIL AS AN UPPER LEVEL RIDGE AMPLIFIES OVER THE INTERIOR WESTERN STATES. WARM TEMPERATURES MAY PROVIDE JUST ENOUGH INSTABILITY TO PRODUCE ISOLATED LIGHT SHOWERS WITH POSSIBLE THUNDER OVER THE HIGHER TERRAIN OF SOUTHWEST AND SOUTH CENTRAL MONTANA LATE FRIDAY AFTERNOON.
253 AM CDT THU SEP 24 2015 A WEAK UPPER LOW CONTINUES TO ROTATE OVER SE AL/SW GA AS OF 07Z. HIGHS SHOULD GET INTO THE LOWER TO UPPER 80S WITH HIGHEST VALUES TO THE WEST WHERE LESS CLOUDS WILL BE PRESENT. AS THE BROAD UPPER LOW MOVES TO THE NORTH. THE E-NE FLOW WRAPS IN MUCH MORE MOISTURE AND COOLER AIR INTO THE REGION TONIGHT. SCATTERED SHOWERS THEN CONTINUE ON FRIDAY WITH SATURATED CONDITIONS AND PLENTY OF LIFT UNDER THE UPPER LOW. BUT WITH THE COOLING ALOFT UNDER THE LOW. HIGHS FRIDAY WILL BE NOTICEABLY COOLER. AS BROAD HIGH PRESSURE SETS UP OVER THE NORTHEASTERN STATES AND BUILDS SOUTH INTO THE CAROLINAS. THE PREVIOUSLY MENTIONED LOW WILL PRESS NORTH AGAINST THE HIGH HELPING TO KEEP A MOIST SE FLOW ACROSS MUCH OF THE S.
SOUTHWEST FLOW AHEAD OF A LARGE UPPER TROUGH OFF THE COAST IS PUMPING A FAIR AMOUNT OF HIGH CLOUD OVER OUR AREA THIS MORNING. THERE IS A WEAK COLD FRONT APPROACHING 130W RIGHT NOW THAT WILL APPROACH THE COAST THIS AFTERNOON AND EVENING. ANY DYNAMICS ASSOCIATED WITH THE FRONT WILL DIMINISH TONIGHT AND CAUSE THE PRECIPITATION TO FALL APART, BUT THE COOLER AIR BEHIND THE FRONT WILL OOZE ONTO THE WEST SIDE ON FRIDAY AND KNOCK TEMPERATURES DOWN A FEW DEGREES. THE UPPER TROUGH AXIS GETS CLOSER OVER THE WEEKEND AND ONSHORE FLOW BECOMES MORE PROMINENT WHICH WILL CHOP ANOTHER 5-10 DEGREES OFF HIGH TEMPERATURES FOR WEST SIDE LOCATIONS.
102 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION FOR THE NEXT SEVERAL DAYS.
258 AM CDT THU SEP 24 2015 LATEST WATER VAPOR SATELLITE IMAGERY INDICATING UPPER LEVEL LOW/TROUGH SPINNING OVER EASTERN NEBRASKA WITH SEVERAL PIECES OF ENERGY ROTATING AROUND THE UPPER LEVEL TROUGH INTO THE NORTHERN PLAINS AND UPPER MIDWEST. 05Z RAP SUGGEST WEAK IMPULSES ROTATING AROUND UPPER LEVEL TROUGH TO LIFT NORTHWARD INTO PARTS OF NORTHERN IOWA/SOUTHERN MINNESOTA TODAY.
A MILD WARMING TREND REMAINS ON TRACK THROUGH FRIDAY AS HIGH PRESSURE BUILDS OVER SOUTHERN AND CENTRAL CALIFORNIA. FOR THE WEEKEND A TROUGH OF LOW PRESSURE WILL PROMOTE COOLER MORE SEASONABLE TEMPERATURES AND CONTINUED DRY WEATHER.
404 AM CDT THU SEP 24 2015 (Today and Tonight) Upper low along the Texas Panhandle and New Mexico state line is expected move slowly south today and tonight. West Central Texas, however, will be under the influence of an upper level ridge, keeping the region for the most part, dry. With more mid/upper level clouds, highs today should be in the lower 90s. It will be cooler tonight with lows in the lower and mid 60s, due to light winds and dry air.
SFC AND UPPER RIDGING CONTINUES TO BRING FAIR WEATHER INTO THE WEEKEND.
324 AM CDT THU SEP 24 2015 259 AM CDT QUIET WEATHER WILL REMAIN ACROSS NORTHERN ILLINOIS AND NORTHWEST INDIANA THROUGH THE REMAINDER OF THE WEEK AS HIGH PRESSURE DOMINATES THE GREAT LAKES REGION. WEAK AREA OF LOW PRESSURE OFF TO OUR WEST WILL CONTINUE TO RESULT IN SHOWERS AND THUNDERSTORMS OVER IOWA WITH BLOWOFF MID AND HIGH LEVEL CLOUD COVER ADVECTING OVERHEAD. DEUBELBEISS 259 AM CDT AMPLIFIED UPPER RIDGE WILL BE IN PLACE CENTERED ACROSS THE NORTHERN PLAINS AND CANADIAN PRAIRIES FRIDAY NIGHT WHILE AN UPPER LOW IS UNDERCUTTING THE RIDGE AND MEANDERING ACROSS THE GULF STATES. MODELS HAVE NOW TRENDED FARTHER NORTH WITH THIS UPPER LOW.
440 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL BRING QUIET WEATHER TO THE REGION FOR THE NEXT SEVERAL DAYS.
THE UPPER LOW CONTINUES TO SPIN JUST TO THE EAST OF THE AREA. THE HIGHEST COVERAGE WILL BE ACROSS EASTERN ZONES. CLOSER TO THE INFLUENCE OF THE UPPER LOW. LOWS TONIGHT WILL RANGE FROM THE LOW 60S INLAND TO AROUND 70 NEAR THE COAST.
UPPER LVL RIDGE WHICH HAS DOMINATED OUR REGION FOR SEVERAL DAYS HAS RETROGRADED SW INTO NRN MX. THE SECOND IS CURRENTLY OVER NRN NE AND WILL MOVE SOUTH INTO THE SRN PLAINS BEFORE MERGING WITH THE TX TROUGH DURING THE WEEKEND. THE THIRD TROUGH IS OVER THE FL PANHANDLE AND WILL DRIFT NORTH TOWARDS THE OHIO RIVER VALLEY. WEAK ASCENT FROM THE THREE TROUGHS WILL SPREAD OVER THE AREA TODAY THROUGH THE WEEKEND.
TODAY THROUGH FRIDAY NIGHT LATEST SFC ANALYSIS SHOWS LOW PRESSURE CENTERED OVER CENTRAL NEBRASKA WITH BANDS OF SHOWERS WRAPPING AROUND THE LOW AND INTO TRIPP CO IN SC SD. SHOWERS OVER SOUTH CENTRAL SOUTH DAKOTA WILL END BY MIDDAY AS THE LOW MOVES EAST AND THE CLOUD COVER WILL BREAK UP FROM WEST TO EAST AS AN UPPER RIDGE BUILDS INTO THE REGION FROM THE WEST. AS TEMPS COOL INCREASING THE RH EXPECT TO SEE THE RETURN OF THE LOW STRATUS AND POSSIBLY AREAS OF FOG OVERNIGHT. SUBSIDENCE ASSOCIATED WITH THE UPPER RIDGE AND MIXING DUE TO DIURNAL HEATING WILL CLEAR OUT THE CLOUDS EARLY ON FRIDAY. DRY AIR OVER NORTHEASTERN WYOMING AND SOUTHWESTERLY WINDS WILL ALLOW TEMPS TO RISE INTO THE 80S OVER NORTHEASTERN WYOMING ON FRIDAY WHILE MOIST SOUTHEASTERLY FLOW OVER SOUTH CENTRAL SOUTH DAKOTA WILL KEEP HIGHS COOLER.
Broad upper level ridging is expected to remain over much of the CONUS Friday through the weekend.
THE RIDGE PATTERN CENTERED OVER THE FOUR CORNERS AREA WILL PREVENT THE DISTRICT FROM SEEING THIS POSSIBLE WEATHER. WITH THE COOLER AIR FADING. UPPER AIR ANALYSIS AND SATELLITE IMAGERY IS SHOWING A DEEP TROF DIGGING OFF THE WEST COAST THAT WILL AFFECT CENTRAL CALIFORNIA WEATHER DURING THE LATTER PERIODS. WHILE THE RIDGE/TROF PATTERN WILL REMAIN SEMI-STATIONARY AS A BLOCKING PATTERN. THE TROF IS EXPECTED TO WIN OUT AND MOVE CLOSER THE REGION DURING THE WEEKEND. WITH THE LOWERING OF HEIGHTS.
LIGHTNING AND WSR-88D RADAR MOSAIC SHOWED THE CLOSED MID LEVEL LOW PRESSURE SYSTEM AND IT/S BANDED RAIN AND THUNDERSTORMS OVER EASTERN NEBRASKA AND WESTERN IOWA. COULD SEE AN UPTICK IN STRENGTH WITH MAX HEATING AND IT WOULD NOT BE UNUSUAL TO GET A FUNNEL CLOUD WITH THE CLOSED LOW IN THE AREA. THE DAYSHIFT CAN ASSESS HOW INTENSE THE RAIN IS WITH THE LOW SHOULD A PART OF THE WATCH NEED TO BE EXTENDED.
THE UNDERLYING WEAK SURFACE GRADIENT FROM HIGH PRESSURE OVER NORTHERN ONTARIO IS THEN SUPPORTING A MIXTURE OF FOG AND STRATUS AS THE LAKE MOISTURE MOVES INLAND. THE LOW LEVEL MOISTURE WILL MIX OUT BY LATE MORNING AND WE WILL BE BACK TO THE INFLUENCE OF LARGER SCALE HIGH PRESSURE THAT HAS BEEN SO PERSISTENT OVER THE LAST FEW DAYS.
A WEAKENING MID/UPPER TROUGH/SHEAR ZONE WAS CENTERED OVER THE NORTHEASTERN GULF OF MEXICO. THE WEAK UPPER SOUTHWESTERLY JET ON THE SOUTHERN FLANK OF THE TROUGH APPEARS TO BE SITUATED AT JUST THE RIGHT POSITION TO FAVOR SOUTHERN FLORIDA. AS THE GULF BASIN UPPER TROUGH WEAKENS/MOVES WEST AND A WEAK SUBTROPICAL RIDGE BECOMES MORE INFLUENTIAL. WEAK HIGH PRESSURE WILL FLUCTUATE IN POSITION AND INTENSITY.
As an upper trough weakens and moves east tonight, most of the light showers will be moving east of Dodge City. For Thursday, upper troughing will continue to move away from the Central Plains with skies becoming mostly sunny. A weak cold front moves into the Wakeeney to Syracuse area late in the afternoon with light south to southwest winds shifting light north. Highs warm into the mid 80s, except slightly cooler east of Dodge City where lingering clouds are forecast. For Thursday night and Friday, a strong upper ridge will build into the Rockies and Intermountain West with a weak disturbance riding the upper ridge and into the Great Plains. Lows on Thursday night will be around 60 with highs on Friday in the low to mid 80s.
136 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL REMAIN IN PLACE INTO FRIDAY. ALTHOUGH TONIGHT MAY BE SLIGHTLY WARMER THAN LAST NIGHT. AND MIN TEMPS IN THE LOWER HALF OF THE 50S SHOULD BE COMMON. PREVIOUS DISCUSSION > A RIDGE OF HIGH WILL CONTINUE TO DOMINATE OUR WEATHER OVERNIGHT. MID LEVEL RIDGE WILL REMAIN OVER THE AREA THURSDAY WITH SOME INCREASE IN MID AND HIGH LEVEL MOISTURE FROM THE EAST AHEAD OF AN UPPER LOW OVER THE SE. TEMPERATURES WILL BE ONLY SLIGHTLY WARMER THAN TODAY WITH HIGHS GENERALLY IN THE LOWER 80S. TEMPS WILL BE A LTL MILDER WITH LOWS FROM THE LOWER 50S NW TO THE UPPER 50S SE. AXIS OF FAVORABLE 8H CONVERGENCE WILL DEVELOP INTO OUR SRN COUNTIES AROUND THE PERIPHERY OF THIS LOW.
This flow will advect cooler 850mb temps into the region compared to yesterday. This, coupled with more cloud cover, is expected to result in cooler temps. Still, have trended cooler tonight given low dewpoints and slightly cooler temps expected today.
329 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL ALLOW FOR ABUNDANT SUNSHINE AND ABOVE NORMAL TEMPERATURES TODAY BEFORE AN UPPER LEVEL DISTURBANCE BEGINS TO APPROACH FROM THE SOUTHEAST ON FRIDAY.
THE UPPER LOW OVER THE FL PANHANDLE WILL SLOWLY LIFT NORTHWARD INTO SW GA BY TOMORROW MORNING AND ALONG THE AL/GA STATE LINE THROUGH THE DAY ON FRIDAY. HAVE LEANED TOWARD COOLER MAV OVER EASTERN AREAS FOR TEMPERATURES THIS AFTERNOON WITH A MET OR MET/MAV MIX OVER WEST AND NORTH GA. MID AND UPPER LEVEL LOW HAS ROTATED NORTHWARD BUT TO VARYING DEGREES. SHOULD SEE A RESPITE FROM THE HIGH RAIN CHANCES AS MOISTURE REMAINS PLENTIFUL BUT MOISTURE IS LACKING. TIMING OF SHRA IS TRICKY WITH THE LOW BUT HAVE HELD OFF UNTIL AFTER 18Z ALL TAF LOCATIONS.
415 AM MDT THU SEP 24 2015 A MOIST LOW-LEVEL AIR MASS REMAINS IN PLACE ACROSS MUCH OF THE HIGH PLAINS EARLY THIS MORNING. OVERALL A TRANQUIL PERIOD OF WEATHER THROUGH EARLY IN THE WEEKEND WITH UPPER- LEVEL RIDGING BECOMING ESTABLISHED OVER THE CENTRAL ROCKIES.
325 AM EDT THU SEP 24 2015 HIGH PRESSURE OVER THE REGION WILL PREVAIL AGAIN TODAY. THIS WILL ALLOW DAYTIME TEMPERATURES TO FREELY RISE BACK UP THE LOW 80S FOR HIGHS TODAY. A CLOSED LOW CURRENTLY POSITIONED OVER THE PANHANDLE OF FLORIDA AND SURROUNDING AREAS.
HIGH PRESSURE IS CURRENTLY CENTERED OVER NORTHERN ONTARIO AND IS KEEPING THINGS DRY OVER MUCH OF THE EASTERN HALF OF THE U. THE WEATHER PATTERN WILL START TO CHANGE SOME ON FRIDAY AS AN UPPER LEVEL LOW CURRENTLY LOCATED OVER SOUTHEAST ALABAMA BEGINS TO DRIFT NORTH.
WITH AN UPPER LEVEL LOW MEANDERING NORTHWEST ACROSS THE SOUTHEASTERN STATES.
414 AM EDT THU SEP 24 2015 A LARGE AREA OF HIGH PRESSURE OVER THE NORTH COUNTRY WILL CONTINUE TO DOMINATE THE REGIONS WEATHER RIGHT THROUGH THE WEEKEND, WITH NO RAIN IN THE FORECAST.
UPPER LOW BRINGS MOISTURE INTO THE AREA LATE THIS WEEK INTO THE WEEKEND. HIGH PRESSURE OVERHEAD WITH CLEAR SKIES AND CALM WINDS WILL AGAIN LEAD TO RIVER VALLEY FOG LATER TONIGHT. BUT IT MAY NOT BE AS INTENSE IN EXTENT AND DENSITY AS IT WAS THIS MORNING DUE TO THE WARMER TEMPERATURES TODAY AND LACK OF RESIDUAL MOISTURE. AND MODELS ARE STARTING TO TREND TOWARDS MOISTURE SPREADING INTO THE LOWLANDS. WITH CHANCE TO SLIGHT CHANCE ACROSS THE LOWLANDS. PARTICULARLY ACROSS THE LOWLANDS. AS AN UPPER LEVEL LOW LIFTS SLOWLY NORTHWEST FROM THE SOUTHEASTERN STATES.
644 AM EDT THU SEP 24 2015 THE DRY WEATHER WILL CONTINUE THROUGH THE WEEKEND AS HIGH PRESSURE DOMINATES OUR WEATHER. HIGH PRESSURE AT THE SURFACE AND UN THE LOWER LEVELS OF THE ATMOSPHERE WILL CONTINUE TO BUILD SOUTHEASTWARD AND IS EXPECTED TO PASS OVER NEW ENGLAND OVER THE WEEKEND KEEPING THE REGION DRY.
AS EAST PACIFIC TROUGH CONTINUES OFFSHORE. EXCEPT SW GUSTS AROUND 15 MPH ACROSS OREGON EACH AFTERNOON AND ACROSS IDAHO RIDGES FRIDAY AFTERNOON. A DRIER AND WARMER FORECAST WITH THE ECMWF MORE PREFERRED IS PRESENTED.
230 AM PDT THU SEP 24 2015 HIGH PRESSURE ALOFT WILL BRING ABOVE NORMAL TEMPERATURES TO THE AREA THROUGH THE WEEKEND.
WEAK S/W ENERGY LIFTING NE OUT OF THE PLAINS UPPER TROF WILL IMPACT THE NW PART OF THE FORECAST AREA THIS MORNING. AS THE UPPER TROF DRIFTS SOUTH AND WEAKENS. HUDSON BAY HIGH PRESSURE WILL DOMINATE OUR WEATHER. BUT THIS SEEMS UNLIKELY DUE TO RIDGING AT THE SFC AND ALOFT.
623 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL KEEP DRY CONDITIONS WITH ABOVE AVERAGE TEMPERATURES THROUGH FRIDAY. BROAD HIGH PRESSURE CENTERED WELL NORTH WILL KEEP ITS GRIP ON OUR REGION. CLOUDS WILL BEGIN TO SLOWLY INCREASE FROM THE SOUTH FRIDAY AS A WEAK LOW PRESSURE SYSTEM MOVES NORTHWARD FROM THE SOUTHEASTERN US. TAX LAYER MOISTURE LOOKS TO START TO TICK UPWARD TOWARD THE WEEKEND AS A DECAYING UPPER LOW SLOWLY MEANDERS NORTHWARD. THE UPPER LOW CURRENTLY NEAR TALLAHASSEE FLORIDA LOOKS TO SLOWLY MOVE TOWARD THE LOWER OHIO VALLEY THROUGH THE WEEKEND.
TONIGHT WILL ONCE AGAIN BE COMFORTABLY COOL WITH MOSTLY CLEAR SKIES AND LOWS DROPPING INTO THE LOWER AND MIDDLE 50S. SHORT TERM CONCERNS REMAIN MINIMAL WITH UPPER RIDGE FIRMLY IN CONTROL AND DRY LOW LEVEL EASTERLY FLOW. 925 AND 850MB TEMPS MAYBE A DEGREE COOLER TODAY BUT CONTINUED DRYING SHOULD ALLOW FOR ANOTHER NICE DIURNAL RISE WITH TEMPS AGAIN NEARING 80 FOR HIGHS. GRADUAL DECAY OF MID LVL BASED FORCING WITHIN NERN PERIPHERY OF THIS SYS ALG W/NRN BOUND OF LL THETA-E RIDGE XPCD REMAINING SOUTH OF LOCAL CWA SUGGESTS A CONTD HOLD TWD A DRY FCST.
612 AM EDT THU SEP 24 2015 HIGH PRESSURE WILL ALLOW FOR ABUNDANT SUNSHINE AND ABOVE NORMAL TEMPERATURES TODAY BEFORE AN UPPER LEVEL DISTURBANCE BEGINS TO APPROACH FROM THE SOUTHEAST ON FRIDAY.
250 AM EDT THU SEP 24 2015 HIGH PRESSURE DOMINATES THE AREA.
DEEP FETCH OF ATLANTIC MOISTURE BETWEEN STRONG CANADIAN HIGH PRESSURE BUILDING INTO THE AREA AND OFFSHORE LOW PRESSURE SYSTEM RETROGRADING INLAND INTO THE SOUTHEASTERN U. -VINCENT ONLY SLIGHT DIFFERENCES IN THE PATTERN FOR THURSDAY ACROSS CENTRAL NC AND THAT IS A MORE EASTERLY FLOW THAT WILL ENHANCE MOISTURE TRANSPORT EVEN MORE INTO THE AREA AS THE UPPER LEVEL LOW CONTINUES TO SIT OVER THE DEEP SOUTH. INSOLATION WILL ONLY ALLOW TEMPERATURES TO REACH THE LOW TO MID 70S FOR HIGHS ACROSS THE AREA WITH LOWS ON THURSDAY NIGHT IN THE LOW 60S NW TO UPPER 60S SE.
A MID/UPPER LEVEL LOW WILL REMAIN JUST EAST OF THE FORECAST AREA AS IT CONTINUES TO GRADUALLY LIFT NORTH FROM THE FLORIDA PANHANDLE INTO THE TENNESSEE VALLEY DURING THE PERIOD. HIGH PRESSURE AT THE SURFACE WILL REMAIN BUILT INTO THE CWA FROM THE NORTHEAST. LOWS TONIGHT AND FRIDAY NIGHT WILL FALL INTO THE LOW AND MIDDLE 60S.
410 AM MDT THU SEP 24 2015 AMPLIFIED RIDGE AXIS TILTED TOWARD THE NORTHEAST CUTS ACROSS EASTERN UTAH/WRN COLORADO TODAY AND FRIDAY.
WINDS WILL REMAIN FROM THE NE AROUND BROAD TROFFING TO OUR SOUTH.
ALONG AND NORTH OF AN ELEVATED WARM FRONT ACROSS THE DAKOTAS AND MN. AND ONLY THE LOWER HALF OF THE 50S ACROSS EASTERN UPPER. LARGE AREA OF CANADIAN HIGH PRESSURE WHICH DROPPED OVER HUDSON BAY AND ONTARIO EARLIER IN THE WEEK.