Aikyam-Lab/Synoptic-Bench huggingface dataset:
405 AM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE BUILDS.
435 AM CDT FRI AUG 28 2015 SFC ANALYSIS SHOWS HIGH PRESSURE REMAINING ENTRENCHED FROM THE GREAT LAKES SWWD TO THE WRN GULF COAST STATES. WHILE A FRONTAL BOUNDARY IS NOTED FROM LOW PRESSURE OVER NEBRASKA TO THE TX PANHANDLE. WATER VAPOR IMAGERY SHOWS DEEP TROFFING OVER THE ERN CONUS WHILE RIDGING IS IN PLACE FROM THE DESERT SW TO THE MIDDLE MISSISSIPPI VALLEY. ALTHOUGH DEWPOINTS/LOW-LEVEL MOISTURE WILL BE ON THE RISE BEGINNING TODAY AS AN ONSHORE FLOW DEVELOPS ON THE BACKSIDE OF PASSING HIGH PRESSURE.
HIGH PRESSURE OVER THE AREA WILL HELP TO BRING A BREAK FROM SHOWER ACTIVITY FRIDAY MORNING. A WEAK PUSH OF MOISTURE WILL RIDE ALONG THE RIDGE FRIDAY AFTERNOON. WITH LITTLE TO NO SHOWER ACTIVITY ANTICIPATED OVER THE LOWER ELEVATIONS.
339 AM CDT FRI AUG 28 2015 OUR REGION REMAINS SANDWICHED BETWEEN THE UPPER RIDGE EXTENDING FROM THE DESERT SW INTO THE CENTRAL PLAINS. AND AN UPPER TROF OVER THE ERN U. A WEAK DISTURBANCE EDGING AROUND THE ERN PERIPHERY OF THE RIDGE WILL BRING A COLD FRONT INTO OUR REGION BY LATE TONIGHT/EARLY SATURDAY MAINLY FOR AREAS ALONG AND N OF I-20. A WEAK UPPER LEVEL LOW WILL DEVELOP AS THE ERN U.
337 AM EDT FRI AUG 28 2015 HIGH PRESSURE TODAY WILL BRING MOSTLY SUNNY SKIES AND WARMER TEMPERATURES.
228 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD EAST ACROSS THE STATE AND DRIFT OFF THE EAST COAST OVER THE WEEKEND. MUCH WARMER TEMPERATURES WILL MOVE INTO REGION FOR THE WEEKEND. WITH EXPECTED MINS RANGING FROM THE LOWER 40S IN THE COOLEST SPOTS UP NORTH. TO THE UPPER 50S IN THE LARGER METRO AREAS IN THE LOWER SUSQQ VALLEY. TO THE L80S ACROSS THE LOWER SUSQ VALLEY.
HIGH PRESSURE CURRENTLY OVER THE REGION WILL SLOWLY SHIFT EASTWARD THROUGH THE SHORT TERM PERIOD. ALOFT MID LEVEL FLOW WILL TRANSITION FROM NORTHWESTERLY TO EVENTUALLY SOUTHWESTERLY AS A TROUGH BEGINS TO APPROACH FROM THE WEST. MOISTURE RETURN WILL BEGIN TOMORROW WITH DEWPOINTS RISING INTO THE LOWER TO MID 60S BY SATURDAY MORNING. TEMPERATURES TOMORROW LOOK TO TOP OUT SOME 3-5 DEGREES WARMER THAN TODAY IN THE LOWER TO MID 80S. LOWS TOMORROW NIGHT WILL BE QUITE A BIT WARMER AS WELL IN THE MID 60S TO AROUND 70.
VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS AS HIGH PRESSURE PROVIDES SUBSIDENCE ACROSS DEEP SOUTH TEXAS. SUBSIDENCE AND DRY AIR WILL PREVAIL AS AN UPPER RIDGE REMAINS PARKED OVER THE DESERT SW AND AN UPPER TROUGH REMAINS EAST OF THE AREA.
EASTERLY LOW LEVEL FLOW AND AN UPPER LEVEL LONG WAVE TROUGH OVER THE APPALACHIANS TO THE CENTRAL GULF COAST WILL BE THE MAIN REASONS FOR INCREASING MOISTURE AND RAIN CHANCES. MOST SO ON SATURDAY AS AN UPPER LOW BECOMES BETTER DEVELOPED ALONG THE CENTRAL GULF COAST.
357 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVERHEAD WITH WARMING TREND TODAY INTO SATURDAY.
349 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD EAST ACROSS THE STATE AND DRIFT OFF THE EAST COAST OVER THE WEEKEND. MUCH WARMER TEMPERATURES WILL MOVE INTO REGION FOR THE WEEKEND. WITH EXPECTED MINS RANGING FROM THE LOWER 40S IN THE COOLEST SPOTS UP NORTH. TO THE UPPER 50S IN THE LARGER METRO AREAS IN THE LOWER SUSQQ VALLEY. TO THE L80S ACROSS THE LOWER SUSQ VALLEY.
SKIES ARE PARTLY TO MOSTLY CLOUDY WITH TEMPERATURES IN THE LOWER TO MID 80S ALONG THE ISLAND CHAIN. ALTHOUGH AN UPPER LEVEL TROUGH WILL REMAIN IN THE EAST CENTRAL GULF OF MEXICO. A LOW AND MID LEVEL WESTERN ATLANTIC RIDGE WILL EXPAND WESTWARD AND ACROSS SOUTH FLORIDA AND OUR REGION TODAY THROUGH SATURDAY. HIGH TEMPERATURES WILL RETURN TO NEAR OR JUST ABOVE 90 DEGREES WITH OVERNIGHT LOWS GENERALLY IN THE LOWER 80S.
A STRONG COLD FRONT WILL SLOWLY APPROACH THE REGION THIS AFTERNOON.
605 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TODAY.
131 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD INTO THE NORTH COUNTRY TONIGHT THROUGH FRIDAY AND PROVIDE THE REGION WITH DRY CONDITIONS AND CLEARING SKIES. THE HIGH WILL REMAIN OVER THE AREA INTO SATURDAY.
IF THE GFS FORECAST IS CORRECT THIS WOULD BE THE LOWEST PWAT RECORDED IN THE AUG SINCE RECORDS HAVE BEEN KEPT SINCE 1948. NORTHEAST TO NORTH FLOW BETWEEN UPPER RIDGE TO OUR WEST AND UPPER RIDGE TO OUR EAST TO MAINTAIN A 25KFT DEEP DRY LAYER WITH AN AVERAGE RH OF 10 PERCENT. DRY AIR CONTINUES IN PLACE BUT DEPTH BEGINS TO NARROW WITH SOUTH TEXAS REMAINING BETWEEN THE WESTERN RIDGE AND THE SLOW RETROGRADING TROUGH TO OUR EAST.
SO WILL IGNORE THE WARMER GUIDANCE FROM THE GFS. SOUTHWEST FLOW ALOFT THROUGH THE EXTENDED WILL LEAD TO LESS MOISTURE AVAILABILITY AND WARMER TEMPS. THE NORTHERN EXTENT OF THE CORE OF THE UPPER RIDGE. WITH LIGHT WINDS IN THE LOW LEVELS.
428 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL REMAIN OVERHEAD TODAY PROVIDING OUR REGION WITH FAIR AND DRY WEATHER WITH PLENTY OF SUNSHINE.
A QUIET SUMMERTIME FORECAST FOR TODAY WITH RIDGE OF HIGH PRESSURE SUPPRESSING THE THREAT FOR AFTERNOON THUNDERSTORMS AND BRINGING SUNNY SKIES. FOCUS FOR TOMORROW IS ON FIRE WEATHER AS RIDGE REMAINS IN PLACE BRINGING HOT AND DRY CONDITIONS. TROF ALONG THE WEST COAST PUSHES A BIT FURTHER INLAND SQUEEZING THE HEIGHT GRADIENTS OVER WESTERN AND CENTRAL MONTANA.
TEMPERATURES WILL BE A LITTLE WARMER AS WINDS TURN TO SOUTHEAST. UPPER LEVEL RIDGING WILL POKE INTO THE AREA FROM THE WEST. AN UPPER LEVEL TROUGH WILL BE LOCATED OVER THE CENTRAL AND NORTHERN PLAINS WHILE AN UPPER LEVEL LOW WILL BE SITUATED ALONG THE NORTHERN GULF COAST. THE UPPER LEVEL TROUGH TO THE NORTHWEST AND THE UPPER LOW TO THE SOUTH WILL MERGE TO FORM A BROAD UPPER TROUGH ACROSS THE MIDSOUTH.
AN ADDITIONAL AREA OF SHOWERS AND STRATIFORM RAIN HAS ALSO DEVELOPED ALONG THE BACK SIDE OF THE UPPER LOW IN EAST CENTRAL AND SOUTH CENTRAL SD. THIS ACTIVITY WILL ALSO GRADUALLY SHIFT EASTWARD WITH THE UPPER LOW. UPPER LEVEL RIDGING BUILDS INTO THE CENTRAL CONUS FOR THE UPCOMING WEEKEND.
300 AM PDT FRI AUG 28 2015 HIGH PRESSURE ALONG WITH WEAK OFFSHORE FLOW WILL BRING ABOVE NORMAL TEMPERATURES THROUGH SATURDAY. THE HIGH WILL WEAKEN OVER THE WEEKEND AND WILL BRING A COOLING TREND ALONG WITH AN INCREASE IN COASTAL CLOUDS. THIS EVENING THE UPPER PATTERN BEGINS TO CHANGE AS THE HIGH IS PUSHED TO THE S AND E BY AN APPROACHING UPPER TROF.
WHICH WOULD BE MORE LIKELY OVER THE HIGH TERRAIN AND NOT NEAR A TAF SITE.
STARTING IN EAST CENTRAL ND FROM MID AFTERNOON AND SPREADING EASTWARD ALONG AN EAST-WEST ORIENTED TROF AXIS INTO NORTHWEST MINNESOTA INTO THE EARLY EVENING. MORE STABLE H5 RIDGE BUILDING IN ALOFT. TEMPERATURES OVERALL WILL BE A BIT WARMER THAN SEASONAL NORMALS. WITH A WARM H5 RIDGE ALOFT AND LIGHT SOUTHERLY WINDS AT THE SURFACE. EXPECT SEASONABLY WARM AND DRY CONDITIONS WITH HIGH TEMPERATURES RANGING FRM THEMID 80S IN CENTRAL MINNESOTA LAKES COUNTRY TO THE LOWER 90S IN THE DEVILS LAKE BASIN.
424 AM MDT FRI AUG 28 2015 TRAILING DISTURBANCE ON BACK SIDE OF DEPARTING UPPER TROF WILL MOVE THROUGH THE AREA EARLY THIS MORNING. NORTHERLY FLOW WILL USHER IN COOLER TEMPERATURES ACROSS THE PLAINS. MEANWHILE LESS CLOUD COVER AND DRIER CONDITIONS SHOULD RESULT IN WARMER TEMPERATURES FOR THE MOUNTAIN AREAS ALONG THE CONTDVD. DRIER AIR AND CLEARING SKIES OVERNIGHT SHOULD ALLOW TEMPERATURES TO BE COOLER THAN PAST COUPLE. SHADED BLENDED GUIDANCE TOWARDS THE COOLER SIDE OF VALUES.
1201 AM CDT FRI AUG 28 2015 UPPER LEVEL TROUGH MOVING ACROSS THE CWA THIS EVENING. MEANWHILE RIDGING REDEVELOPING ACROSS THE WESTERN ROCKIES. THE LOW PRESSURE SYSTEM/TROUGH PUSHING EAST ACROSS THE AREA WILL BE THE AREA TO FOCUS ON. TOMORROW THE RIDGE BEGINS TO EXPAND ACROSS THE AREA. SOUTH FLOW IN THE LOW LEVELS WILL BRING WARM/DRY AIR FROM NORTHERN NEW MEXICO AND SOUTHERN COLORADO TO WESTERN NEBRASKA.
HIGH PRESSURE SHIFTING TO THE SOUTHEAST OF THE REGION IS BEGINNING TO BRING IN SOME DRIER CONDITIONS FROM THE WEST. WHICH IS NORMALLY UNFAVORABLE FOR MONSOON STORMS TO MOVE INTO THE LOWER DESERTS. THERE IS JUST A SLIGHT CHANCE OF AN ISOLATED STORM OVER THE LOWER DESERTS THROUGH THE REST OF THIS EVENING.
410 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES AND OHIO VALLEY WILL DRIFT EAST TODAY. THIS WILL ALLOW WEAK LOW PRESSURE TO TRACK EAST FROM THE CENTRAL PLAINS TO THE CENTRAL LAKES ON SATURDAY NIGHT. HIGH PRESSURE CENTERED OVER WESTERN NY WILL SLOWLY DRIFT EASTWARD TODAY. HIGH PRESSURE WILL CONTINUE MOVING EASTWARD OVERNIGHT ALLOWING A WEAK WARM FRONT TO LIFT INTO OHIO. THIS INCREASE IN MOISTURE AND AN APPROACHING AREA OF LOW PRESSURE MAY ALLOW FOR SOME SCATTERED THUNDERSTORMS DEVELOPMENT ACROSS THE WESTERN HALF OF THE REGION.
THIS EVENING THROUGH FRIDAY NIGHT UPPER LEVEL ANALYSIS HAS UPPER LOW MOVING ACROSS THE NORTHERN PLAINS. WITH UPPER RIDGE REBUILDING ACROSS THE GREAT BASIN AREA. LOW PRESSURE IS CENTERED OVER SOUTHERN NEBRASKA WITH INVERTED TROF THROUGH THE CENTRAL DAKOTAS. LOWS TONIGHT WILL BE IN THE LOWER 50S TO MID 60S. THERMAL RIDGE WILL SHIFT INTO THE NORTHERN HIGH PLAINS.
SURFACE MAP SHOWS A RIDGE OF HIGH PRESSURE SITUATED TO OUR NORTH AND WEST, BUT FINALLY POISED TO SHIFT EAST OF MIDDLE TENNESSEE TODAY, ALLOWING FOR RETURN SOUTHERLY FLOW AND WARMER, MORE SEASONAL TEMPERATURES.
656 AM EDT FRI AUG 28 2015 THE CENTER OF HIGH PRESSURE WILL SLIP INTO THE APPALACHIANS TODAY.
LONG WAVE TROUGH ALONG THE EASTERN STATES EXPECTED TO MOVE EAST AND FILL. LEAVING AN UPPER LOW WEST OF THE FORECAST AREA FRIDAY AND FRIDAY NIGHT. AT THE LOWER LEVELS. CLOSED LOW THEN EJECTS INTO THE SE OVERNIGHT SAT INTO SUN.
Strong cold front Saturday, Pattern change this weekend & next. The strongest winds will be ahead and along the cold front as it makes its way through.
BROAD UPPER LEVEL TROUGH WILL KEEP ABOVE NORMAL TEMPERATURES ACROSS THE AREA THROUGH TONIGHT. LOW LEVEL SE TO SW WINDS WILL BE ON THE INCREASE OVER HIGHER TERRAIN OF SE OREGON TODAY AS UPPER LEVEL SW WINDS INCREASE AHEAD OF A COLD FRONT OFFSHORE. THE COLD FRONT WILL MOVE ONSHORE EARLY SATURDAY MORNING AND BRING GUSTY SW TO W WINDS ACROSS OREGON SATURDAY AND SW IDAHO SATURDAY AFTERNOON AND EVENING. A LOW PRESSURE CENTER MAY FORM ON THE FRONT LATE SATURDAY ACROSS S-CENTRAL IDAHO WHERE ISOLATED THUNDERSTORMS WITH GUSTY WINDS ARE ALSO EXPECTED. MODELS CONTINUE TO AGREE ON A LONGWAVE TROUGH OVER THE NORTHERN INTERMOUNTAIN REGION.
351 AM MDT FRI AUG 28 2015 HIGH PRESSURE BUILDS BACK IN TODAY AS PWATS DROP BACK DOWN TO NEAR NORMAL VALUES. A DEEP TROUGH WILL COME ASHORE OVER THE PACNW SATURDAY MORNING AND WILL FORCE THE RIDGE AXIS TO SHIFT TO THE NE.
238 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVERHEAD WITH WARMING TREND FRIDAY INTO SATURDAY.
640 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES AND OHIO VALLEY WILL DRIFT EAST TODAY. THIS WILL ALLOW WEAK LOW PRESSURE TO TRACK EAST FROM THE CENTRAL PLAINS TO THE CENTRAL LAKES ON SATURDAY NIGHT. HIGH PRESSURE CENTERED OVER WESTERN NY WILL SLOWLY DRIFT EASTWARD TODAY. HIGH PRESSURE WILL CONTINUE MOVING EASTWARD OVERNIGHT ALLOWING A WEAK WARM FRONT TO LIFT INTO OHIO. THIS INCREASE IN MOISTURE AND AN APPROACHING AREA OF LOW PRESSURE MAY ALLOW FOR SOME SCATTERED THUNDERSTORMS DEVELOPMENT ACROSS THE WESTERN HALF OF THE REGION.
Water vapor imagery shows a departing synoptic trof with subsidence in its wake. A light northerly wind is expected today in the wake of a weak passing cold front. High pressure will ridge across the central plains with weak southerly flow developing on the backside of the departing high be Saturday evening.
218 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL REMAIN OVERHEAD TODAY PROVIDING OUR REGION WITH FAIR AND DRY WEATHER WITH PLENTY OF SUNSHINE.
WEATHER CONDITIONS ARE EXPECTED TO BE QUIET GOING INTO SATURDAY AS HIGH PRESSURE BUILDS IN. THE OVERALL SYNOPTIC PATTERN CONSISTS OF A CLOSED LOW TRACKING EWD ACROSS SRN MN INTO CENTRAL WI. AND A SECONDARY UPPER TROUGH DROPPING IN FROM THE NW THROUGH THE ND/NWRN MN REGION. THESE TWO FEATURES WILL PHASE TOGETHER ACROSS THE GREAT LAKES TONIGHT AND SATURDAY AS HIGH PRESSURE BUILDS IN FROM THE WEST. AS TEMPERATURES WARM INTO THE LOWER 80S AND LOW LEVEL MOISTURE INCREASES. BUT THE HIGHEST PROBABILITY WILL BE ALONG AND NORTH OF US HIGHWAY 2 THIS EVENING. THE FRONT WILL LINGER ACROSS THE AREA TONIGHT AND INTO EARLY SATURDAY BEFORE GETTING PUSHED TO THE EAST AS HIGH PRESSURE BUILDS IN ON SATURDAY.
356 AM EDT MON SEP 14 2015 BROAD HIGH PRESSURE IS CENTERED OVER THE TENNESSEE VALLEY. TEMPERATURES ALONG THE KEYS ISLAND CHAIN ARE IN THE LOWER 80S. THE WEAKENING BOUNDARY DRAPED ACROSS THE STATE WILL BE BRIDGED BY THE EXPANSIVE HIGH PRESSURE TO ITS NORTH AS THAT HIGH PRESSURE OOZES EASTWARD TODAY AND TUESDAY.
MAIN FEATURES OF THE SHORT TERM INVOLVE THE TRANSITION FROM WARM AND DRY CONDITIONS TO A SEASONABLE AND WETTER PATTERN AS A PACIFIC TROUGH MOVES IN FROM THE WEST.
/06Z TAFS/ VFR SKIES SHOULD CONTINUE THROUGH AT LEAST 04Z TUES AS A LOW LEVEL RIDGE PUSHES DRY AIR WEST FROM EAST TX. WITH LOWS MAYBE A DEGREE OR TWO ABOVE THE COOLER TEMPERATURES SEEN THIS MORNING. AGAIN WINDS ARE EXPECTED TO DECREASE TO LIGHT AND VARIABLE AS HIGH PRESSURE OFF THE COAST WEAKENS AND THE DIURNAL PRESSURE GRADIENT RELAXES. LOW LEVEL MOISTURE RECOVERY WILL BEGIN MOST SIGNIFICANTLY LATE MONDAY NIGHT AS THE 850 MB FLOW ENHANCES OVER THE RIO GRANDE VALLEY AND UP INTO THE PANHANDLE DUE TO LOW PRESSURE OFF THE LEE OF THE ROCKIES.
THE UPR TROF WL DEEPEN ALONG THE WEST COAST THE NEXT FEW DAYS WHILE RIDGES BECOME ESTABLISHED NR 160W AND OVER ERN NOAM. AND TUESDAY MUCH WARMER AIR ALOFT WL SURGE ACRS THE AREA TDA. BUT THE LOWER SEPTEMBER SUN ANGLE WL NO LONGER SUPPORT MIXING TO 850 MB IN A WAA REGIME SUCH AS THIS.
A LARGE RIDGE OF CANADIAN HIGH PRESSURE WILL REMAIN IN PLACE ACROSS THE REGION FOR THE NEXT SEVERAL DAYS. WILL ALLOW TEMPERATURES TO DROP INTO THE LOW TO MID 40S THIS MORNING. AND INTO FROM THE MID 40S TO THE LOWER 50S LATE TONIGHT INTO EARLY TUESDAY MORNING. STRONG SUBSIDENCE ASSOCIATED WITH THE RIDGE WILL KEEP ANY FOG THAT FORMS CONFINED TO OUR VALLEY LOCATIONS AND NEAR LARGE BODIES OF WATER THIS MORNING AND LATE TONIGHT INTO TUESDAY MORNING. HIGHS ON TUESDAY WILL BE SLIGHTLY WARMER. STRONG SUBSIDENCE ASSOCIATED WITH A RIDGE OF HIGH PRESSURE SHOULD KEEP FOG CONFINED TO VALLEY LOCATIONS AND NEAR BODIES OF WATER OVERNIGHT INTO EARLY MONDAY MORNING.
WHILE SURFACE ANALYSIS SHOWS A RIDGE OF HIGH PRESSURE STRETCHING FROM THE TENNESSEE VALLEY TO THE NORTHERN GULF OF MEXICO. SKIES ARE MAINLY CLEAR OVER OUR FORECAST AREA EARLY THIS MORNING AND TEMPERATURES ARE AVERAGING WELL BELOW NORMAL OVER MUCH OF OUR INTERIOR WITH 4 AM CDT READINGS IN THE LOWER TO MID 50S. TEMPERATURES ARE WARMER NEAR THE IMMEDIATE COAST/BEACHES. WHERE OBSERVATIONS INDICATED READINGS IN THE LOWER 60S TO AROUND 70.
BROAD AREA OF H500 HEIGHT FALLS ACROSS THE PAC NW ASSOCIATED WITH DEEPENING UPPER TROUGH APPROACHING THE COAST.
327 AM CDT MON SEP 14 2015 THE 07Z MSL PLOT SHOWS LOW PRESSURE CENTERED ALONG THE WYOMING- MONTANA LINE NEAR GILLETTE WITH A DRY LINE EXTENDING ACROSS NORTHWEST AND WESTERN SOUTH DAKOTA AND THROUGH WESTERN NEBRASKA. A LONG WAVE TROUGH WILL TRANSLATE EAST ACROSS THE INTERMOUNTAIN WEST MID-WEEK.
141 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL EXTEND ACROSS THE REGION FOR MUCH OF THE WEEK. A WEAK TROUGH OF LOW PRESSURE WILL DEVELOP OFF THE SOUTHEAST U. LOWS WILL MAINLY BE IN THE LOWER TO MID 60S. DRY CONDITIONS WILL PERSIST AS CANADIAN HIGH PRESSURE HOLDS FIRM. HIGHS WILL TOP OUT IN THE LOWER-MID 80S. THE LOW-LEVEL FLOW WILL VEER TO THE NORTHEAST MONDAY NIGHT AS THE CENTER OF HIGH PRESSURE REFORMS NEAR THE VIRGINIA TIDEWATER AND A COASTAL TROUGH BEGINS TO DEVELOPS JUST OFF THE COAST. LOWS WILL RANGE FROM THE UPPER 50S WELL INLAND TO THE LOWER 70S AT THE BEACHES.
142 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL EXPAND ACROSS THE SOUTHERN GREAT LAKES TONIGHT.
249 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER THIS WEEK. MOSTLY CLEAR AND DRY CONDITIONS ARE EXPECTED TODAY UNDER BUILDING HIGH PRESSURE. RIDGING AND WEAK WARM ADVECTION ARE PROGGED TO PERSIST ACROSS THE REGION THROUGH THE PERIOD BRINGING DRY WEATHER AND TEMPERATURES AROUND 5 DEGREES ABOVE SEASONAL LEVELS. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH RIDGING PROGGED ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUES TO SWING OUT ACROSS THE NORTHEAST WHILE MODERATELY AMPLIFIED RIDGING IS DOMINATING THE REMAINDER OF THE COUNTRY. LOW PRESSURE WILL CONTINUE TO DEEPEN ALONG THE FRONT RANGE. HIGHS WILL AGAIN BE SLIGHTLY WARMER CLIMBING INTO THE UPPER 80S TOMORROW AS WINDS INCREASE TO NEAR 15 TO 20 MPH WITH GUSTS TO 30 MPH.
247 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH LATE WEEK. THE NEXT COLD FRONT APPROACHES FROM THE NORTHWEST LATE THIS WEEKEND. AN UPPER LOW CENTERED OVER UPSTATE NEW YORK WITH THE TROUGH AXIS EXTENDING SOUTH ALONG THE EASTERN SEABOARD WILL LIFT NORTHEAST WITH UPPER RIDGING BUILDING ACROSS THE REGION TODAY. RIDGE OF HIGH PRESSURE SURFACE AND ALOFT WILL BE ANCHORED JUST TO THE NORTH AND BE ORIENTED SOUTHWEST TO NORTHEAST.
AS A DEEPENING PLAINS TROF AND BUILDING MID ATLANTIC RIDGE YIELD AN ONSHORE FLOW ACROSS THE NORTHWEST GULF COAST REGION. THIS WILL RESULT IN A RATHER ABRUPT RETURN OF LOW LEVEL MOISTURE AND WARMER TEMPERATURES. NOTABLY IN OVERNIGHT LOWS WHICH ARE EXPECTED TO BE A GOOD 10 DEGREES WARMER BY TUE MORNING.
A STRONG UPPER LEVEL TROUGH WAS LOCATED NEAR 140W 42N AS OF 0830Z. WITH AROUND A TENTH OF AN INCH FORECAST IN THE LOWER ELEVATIONS. THERE WILL BE PARTIAL CLEARING AND COOLER TEMPERATURES. HIGHS WILL BE NEAR 70 IN THE LOWER ELEVATIONS. BECAUSE THIS FIRST SYSTEM IS JUST ONE PART OF THE OVERALL LONGWAVE TROUGH BECOMING ESTABLISHED TO OUR WEST.
BREEZY SOUTHERLY WINDS WILL PERSIST TODAY AS A TROUGH OF LOW PRESSURE REMAINS ANCHORED ACROSS THE CENTRAL HIGH PLAINS AND A RIDGE OF HIGH PRESSURE WILL REMAIN SITUATED ACROSS THE OHIO VALLEY AREA. THE H85 THERMAL RIDGE WILL EXPAND ACROSS CENTRAL KANSAS HELPING TO DRIVE HIGH TEMPERATURES INTO THE LOWER AND MIDDLE 90S.
152 AM EDT MON SEP 14 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO NC TODAY AND REMAIN OVERHEAD THROUGH MID TO LATE WEEK. CANADIAN HIGH PRESSURE WILL BUILD INTO THE AREA FROM THE TN VALLEY TONIGHT. EXPECT OVERNIGHT LOWS TO RANGE FROM THE MID 40S IN THE USUAL RURAL COOL LOCATIONS TO THE LOWER 50S SE (TOWARDS THE COLDER SIDE OF GUIDANCE). AN AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL MAINTAIN A DRY AND STABLE ATMOSPHERE ACROSS THE REGION.
154 AM EDT MON SEP 14 2015 AFTER LINGERING CLOUDS AND SHOWERS DEPART BY EARLY AFTERNOON, A LARGE HIGH PRESSURE SYSTEM WILL BUILD IN, TO BRING DRY WARMER WEATHER, FOR MUCH OF THIS WEEK. WRAP-AROUND MOISTURE AROUND THE BACK-SIDE OF A DEEP UPPER TROUGH AXIS WILL KEEP CLOUDS OVER MUCH OF THE AREA THIS MORNING, ALONG WITH FREQUENT SHOWERS/SPRINKLES, ESPECIALLY FOR CENTRAL NY. HOWEVER, THERE IS GOOD AGREEMENT AMONGST THE LATEST RUNS OF OUR HIGH- RESOLUTION MODELS, THAT THESE SHOWERS/SPRINKLES WILL DISSIPATE RATHER QUICKLY IN THE 10 AM-1 PM TIME FRAME, AS THE ABOVE MENTIONED TROUGH FILLS, AND LIFTS OUT TO THE NORTHEAST. VERY QUIET WEATHER IS FORESEEN THIS PERIOD, AS AN EXPANSIVE RIDGE SURFACE AND ALOFT BUILDS OVER THE EASTERN STATES, IN RESPONSE TO A PERSISTENT UPPER TROUGH AXIS RESIDING FROM BRITISH COLUMBIA DOWN THE WEST COAST OF THE U.
355 AM EDT MON SEP 14 2015 HIGH PRESSURE BUILDS OVER THE LOCAL AREA THROUGH THE END OF THE WEEK.
122 AM EDT MON SEP 14 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION THROUGH MONDAY WILL SETTLE OVER THE MID ATLANTIC BY MIDWEEK.
334 AM CDT MON SEP 14 2015 CURRENT SURFACE ANALYSIS SHOWS A CLOSED LOW OVER NORTHEAST WYOMING. AND THE ASSOCIATED TROUGH EXTENDING FROM SOUTHWEST TO NORTHEAST ACROSS SOUTH DAKOTA. MEANWHILE A COOLER AIR MASS IS OOZING OUT OF NORTH DAKOTA. AND WHERE THE HIGHEST TEMPERATURES ARE FORECAST.
425 AM CDT MON SEP 14 2015 TODAY WILL BE ANOTHER BREEZY DAY AND IT WILL BE WARMER. WHICH WILL SLOWLY WORK ITS WAY TO SW FLOW AS A TROUGH DIGS INTO THE WEST AND HIGH PRESSURE BUILDS OVER THE SE. RIDGING AND SW FLOW ALOFT GET USHERED OUT AT THE END OF THE WEEK AND THE ASSOCIATED FRONTAL BOUNDARY WILL COOL OFF TEMPS JUST A BIT BACK INTO THE LOWER 70S. LATE IN THE WEEK THE TROUGH MAKES ITS WAY INTO/THROUGH THE PLAINS AND THE ASSOCIATED FRONTAL BOUNDARY WILL MOVE THROUGH.
137 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL BE OVER THE REGION INTO MONDAY. SHOULD ALLOW HIGH TEMPS TO RISE INTO THE LOW TO UPPER 70S ON MONDAY. TRANQUIL WX TO START AS RIDGING SFC AND ALOFT BLD ACRS THE LAKES THROUGH MID PD AHD OF VIGOROUS SW TROUGH EJECTS OUT OF THE NRN ROCKIES. UNTIL THEN TURNING MUCH WARMER W/WELL ABV NORMAL TEMPS MANIFESTING BY TUE AND CONTG THROUGH FRI. RIDGE AXIS MOVG ACROSS NRN INDIANA EARLY THIS MORNING. SWLY GRADIENT WILL INCREASE TODAY AS THE RIDGE MOVES EAST TO THE APPALACHIANS AND LOW PRESSURE DEEPENS OVER THE NRN HIGH PLAINS.
THE DEEP UPPER TROUGH HAS PUSHED TO THE EASTERN U.
SO A FEW DEGREES WARMER THAN YESTERDAY. UPPER LEVEL RIDGING WILL REPLACE THE DEPARTING UPPER TROUGH OVER THE EASTERN U. THIS RIDGE WILL THEN SHIFT SOUTHWESTWARD LATE IN THE WEEK AND BECOME CENTERED OVER TEXAS. NORTHERN MEXICO AND THE LOWER MISSISSIPPI VALLEY. /CAB/ HIGH PRESSURE IS ALREADY SLIDING TO THE EAST WITH WINDS BEGINNING TO VEER WITH ERLY WINDS EXPECTED BY EARLY THIS AFTN. WINDS WILL GENERALLY BE ERLY THROUGH THE WEEK AND MODERATE IN INTENSITY BUT THERE ARE SOME INDICATIONS THAT WEEK LOW PRESSURE IN THE GULF COULD TIGHTEN THE GRADIENT LATE THIS WEEK RESULTING IN ERLY WINDS AROUND 15-20KTS SO WILL KEEP AN EYE ON THIS AS HEADLINES MAY BE NEEDED BY THU.
COOLER TEMPERATURES WILL OCCUR MONDAY AND TUESDAY FOLLOWED BY A WARMING TREND LATER THIS WEEK.
UPPER TROUGH WILL PULL AWAY TODAY ALLOWING FOR UPPER RIDGING TO BEGIN BUILDING THIS WAY FROM SOUTHERN PLAINS.
325 AM EDT MON SEP 14 2015 COOL AND DRY HIGH PRESSURE WILL SETTLE OVER THE REGION THROUGH MIDWEEK.
THUNDERSTORMS CRESTING THE UPPER RIDGE OVER OKLAHOMA THIS EARLY MORNING. THE WORK WEEK WILL CONTINUE TO SEE THE RETURN FLOW OFF OF THE GULF OF MEXICO DEEPEN THROUGH THE LOWER LEVELS WITH TIME. THE UPPER RIDGE WILL REFORM OVER THE MID SOUTH WITH NO SOLID COLD FRONTS ON THE HORIZON.
332 AM CDT MON SEP 14 2015 The primary forecast concern over the next several days will be the potential for isolated nocturnal convection as the LLJ continues to strengthen and shift eastward ahead of developing lee-side low pressure in the High Plains.
925 MB TEMPS WARMING TO THE HIGH TEENS CELSIUS AND MIXING WELL THROUGH THAT LEVEL FAVORS HIGHS REACHING THE UPPER 70S TO LOWER 80S. ALSO AIDING THE WARMING WILL BE GUSTY SOUTH-SOUTHWEST WINDS AND DEWPOINTS REMAINING IN THE LOWER TO MID 50S. RC 304 PM CDT AN AMPLIFIED BUT LOW WAVELENGTH PATTERN WILL MOVE LITTLE DURING MIDWEEK WITH AN UPPER TROUGH ACROSS THE EASTERN PACIFIC AND FAR WESTERN U. AND A DEVELOPING RIDGE ACROSS THE EASTERN U. MULTIPLE LOW PRESSURE SYSTEMS WILL MOVE FROM THE UPPER MIDWEST TO SOUTHERN HUDSON BAY THROUGH THE WEEK. THE LOW-LEVEL THERMAL RIDGE THAT IS EXPECTED TO MOVE OVER THE REGION WILL UNDULATE SOME THROUGH THE WEEK WITH EACH AFOREMENTIONED LOW TO OUR NORTH.
424 AM MDT MON SEP 14 2015 SOUTHWEST FLOW ALOFT AHEAD OF AN UPPER LEVEL TROUGH WILL BE THE MAIN WEATHER INFLUENCE THE NEXT SEVERAL DAYS. WHILE TEMPERATURES ARE EXPECTED TO REMAIN ABOVE NORMAL THROUGH THE SHORT TERM PERIOD PARTICULARLY OVER THE HIGHER ELEVATIONS OF SOUTHEAST WYOMING.
525 AM EDT MON SEP 14 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER THIS WEEK. MOSTLY CLEAR AND DRY CONDITIONS ARE EXPECTED TODAY UNDER BUILDING HIGH PRESSURE AS REMAINING CLOUDS OFF LAKE ERIE ERODE. RIDGING AND WEAK WARM ADVECTION ARE PROGGED TO PERSIST ACROSS THE REGION THROUGH THE PERIOD BRINGING DRY WEATHER AND TEMPERATURES AROUND 5 DEGREES ABOVE SEASONAL LEVELS. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH RIDGING PROGGED ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
1223 AM CDT MON SEP 14 2015 FOR 06Z TAFS /ISSUED 757 PM CDT SUN SEP 13 2015/ 00Z ANALYSIS INDICATED A 1020MB HIGH PRESSURE CELL CENTERED IN SERN KY WITH A RIDGE AXIS EXTENDING INTO NRN AL AND MS. HIGH PRESSURE CURRENTLY OVER THE REGION WILL SHIFT EASTWARD TODAY.
THE WEAK UPPER RIDGE MOVES ACROSS SOUTHERN WISCONSIN PUSHES EAST WITH A WEAK WEEST/SOUTHWEST FLOW FROM WYOMING TO WISCONSIN LATER TODAY.