Aikyam-Lab/Synoptic-Bench huggingface dataset:
DEEPENING WEST COAST TROUGH WILL CHANGE OUR ZONAL FLOW TO MORE SOUTHWEST DURING THE SHORT TERM. THE LOW LEVEL JET IS FORECAST TO STRENGTHEN AGAIN TO 40 TO 60KTS. ISOLATED ELEVATED STORMS MAY DEVELOP AHEAD OF THE SURFACE TROF WITH SCATTERED THUNDERSTORMS POSSIBLE TUESDAY NIGHT.
A PATTERN CHANGE IS UNDERWAY AS AN APPROACHING UPPER TROUGH BREAKS DOWN THE RIDGE.
1234 PM CDT MON SEP 14 2015 THE LOW CLOUDS ARE STILL HOLDING TOUGH FROM KBDE TO KBJI. COLD FRONT CURRENTLY BISECTING FA FROM NE-SW AND WILL CONTINUE TO DROP SOUTHWARD EXITING ALL BUT THE FAR SE BY SUNRISE. WITH COLD ADVECTION AND SOME MID/UPPER LEVEL CLOUDS TEMPERATURES WILL BE COOLER. AS LOW PRESSURE ORGANIZES OVER THE N PLAINS AHEAD OF NEXT WAVE SOUTHERLY FLOW WILL LIFT WARM FRONT NORTHWARD OVERNIGHT.
325 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL STALL OVER THE EASTERN U. UNSEASONABLE WARMTH THIS PD TIED TO BLDG RIDGE ALOFT AHD OF FAIRLY VIGOROUS TROUGHING DVLPG THROUGH THE NRN ROCKIES. LEAD ENERGY EJECTING NEWD OUT OF ROCKIES TROUGH MORE EVENLY PROGGED IN MED RANGE SOLUTIONS TO OCCUR LT THU. AS SUCH AND IN CONTEXT OF DILUTED EWD EXTENT OF LL THETA-E RIDGE WILL CONTRACT THU NIGHT POPS FURTHER W/WWD BIAS PREFERRED GIVEN ABOVE CONSENSUS SCENARIO.
INVERTED TROUGH EXTENDS FROM THE SOUTH CENTRAL LA COAST SOUTHWEST TO A WEAK LOW IN THE SOUTHWEST GULF OF MEXICO. CONVERGENCE ALONG THIS TROUGH COMBINED WITH DIFLUENCE ALOFT IS CAUSING SHOWERS AND THUNDERSTORMS TO GRADUALLY INCREASE IN THE COASTAL WATERS THIS AFTERNOON.
608 PM EDT MON SEP 14 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW A QUIET WEATHER PATTERN WILL STAY IN PLACE THROUGH THE REST OF THE WEEK WITH HIGH PRESSURE PRODUCING DRY WEATHER AND ABOVE AVERAGE HIGHS.
248 PM EDT MON SEP 14 2015 COOL CANADIAN HIGH PRESSURE WILL BRING LOW HUMIDITY AND COOL NIGHTS THROUGH MID WEEK. CANADIAN HIGH PRESSURE IS BROADLY CENTERED FROM WEST VIRGINIA THROUGH THE NORTH CAROLINA PIEDMONT AND SHOULD MOVE VERY LITTLE THROUGH TONIGHT. LOWS SHOULD FALL DEEP INTO THE 50S WITH SOME UPPER 40S IN NORMALLY COOLER LOCATIONS INLAND. A WELL MIXED BOUNDARY LAYER OF ABOUT 4500FT WILL YIELD HIGH TEMPERATURES IN THE LOW 80S AREA-WIDE WITH A FEW DEGREES SHAVED OFF THE IMMEDIATE COAST.
THE BEST CONCENTRATION OF COVERAGE SHOULD SET UP ACROSS OUR EXTREME SOUTHERN ZONES OR NEAR THE LOWER TOLEDO BEND AND SAM RAYBURN COUNTRY OF DEEP EAST TEXAS INTO WEST CENTRAL LOUISIANA AND THIS IS WHERE I HAVE PAINTED CHANCE POPS FOR TUE. UPPER RIDGING BEGINS TO BUILD INTO OUR REGION FROM THE WEST FOR WED/THU TIMEFRAME WHICH WILL SHUT DOWN ANY PRECIPITATION CHANCES EXCEPT FOR VERY ISOLATED COVERAGE.
A TROUGH OF LOW PRESSURE WILL PASS THROUGH THE AREA TODAY INTO TUESDAY.
336 PM EDT MON SEP 14 2015 STRONG HIGH PRESSURE CONTINUES TO ENCOMPASS MUCH OF THE REGION. WE ARE CURRENTLY LOCATED ON THE LEFT SIDE OF THE HIGH. THE HIGH WILL ONLY TRANSITION SLIGHTLY EASTWARD THROUGH THE NEXT 24 HOURS. EXPECT ANOTHER GOOD RIDGE VALLEY SPLIT TO TAKE FORM OVERNIGHT AS WELL. AN UPPER LEVEL RIDGE WILL BUILD NORTHEAST INTO THE REGION BRINGING A RETURN TO WARM DAYTIME TEMPERATURES THROUGH THE REMAINDER OF THE WORK WEEK. LOW DEWPOINTS WILL PROMOTE LARGE DIURNAL RANGES AND COOL NIGHTS WITH LARGE RIDGE/VALLEY TEMPERATURE DIFFERENCES. A SHEARED OUT COLD FRONT WILL SWING ACROSS THE OHIO AND TENNESSEE VALLEYS OVER THE WEEKEND BRINGING OUR NEXT THREAT FOR SHOWERS.
breezy surface winds tonight will aid in keeping temperatures mild in the mid to upper 60s cwa-wide and even warmer in the central KS locations where wind speeds should be strongest.
LOW PRESSURE TROUGH DEVELOPING ALONG THE WEST COAST WILL CONTINUE TO BRING INCREASED MOISTURE INTO WESTERN WYOMING.
318 PM EDT MON SEP 14 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO NC TODAY AND REMAIN OVERHEAD THROUGH MID TO LATE WEEK. GENERALLY IN THE LOW 80S. OVERNIGHT LOWS IN THE LOW TO MID 50S EXPECTED.
ONCE AGAIN COMBINATION OF STRONG CONVECTIVE INHIBITION/LID INDICES 3C-7C/700MB TEMPS AROUND 12C DURING THE AFTN HOURS SUGGEST THE CHANCE FOR TSTM INITIATION WILL BE RATHER REMOTE JUST AHEAD OF A COLD FRONT APPROACHING THE NRN CWA. FOCUS FOR PCPN DEVELOPMENT WILL BE OVER THE SRN CWA THU NIGHT/ FRI WHERE FORCING/LLVL MOISTURE CONVG WILL INCREASE IN RESPONSE TO A COLD FRONT MAKING A PUSH SOUTH.
WITH SOME SHOWER ACTIVITY DEVELOPING IN THE HIGH COUNTRY AND INCREASING CLOUDS ACROSS THE PLAINS. THE LEESIDE PRESSURE TROUGH WILL DEEPEN RAPIDLY IN RESPONSE TO THE APPROACHING WAVE. AVERAGING 40 TO 45 KTS BY 12Z TUESDAY OVER THE HIGH COUNTRY.
700 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES BY TONIGHT.
Otherwise, mostly clear skies with coolest temperatures over southeastern Missouri and southern Illinois, in the low to mid 50s, and the warmest temps over central and northeast Missouri, in the low 60s.
A WEAKLY ORGANIZED UPPER HIGH MEANDERS AROUND OFF THE CAROLINA/GA/FL COAST THROUGH THE FIRST TWO PERIODS OF THE FORECAST. WITH THE LOW LEVEL FLOW BECOMING A MORE ORGANIZED EASTERLY.
A TROUGH AXIS STRETCHING FROM THE WESTERN BAHAMAS SOUTH ACROSS EASTERN CUBA WILL CONTINUE TO MOVE WESTWARD. SURFACE WINDS ARE NE-E AHEAD OF THE TROUGH AND OUT OF THE SOUTHEAST BEHIND IT WITH INCREASING SPEEDS. THE TROUGH AXIS WILL MOVE WEST OF THE AREA ON TUE-WED AND INTO THE GULF OF MEXICO.
638 PM EDT MON SEP 14 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE COMMONWEALTH AND PREVAIL RIGHT INTO THIS WEEKEND. AS UPPER LOW DEPARTS AND TEMPS WARM ALOFT. TO THE L50S OVER PARTS OF THE LOWER SUSQ VALLEY. SEVERAL WAVES DIGGING THROUGH THE BASE OF A FAIRLY PROGRESSIVE WEST COAST TROUGH WILL HELP TO STEADILY AMPLIFY A DOWNSTREAM. RIDGE THAT WILL BRING ANOTHER 3-4 DAYS OF SPLENDID LATE SUMMER WEATHER. AS THIS RIDGE BUILDS AT THE SFC AND ALOFT THIS WEEK.
MID AFTERNOON TEMPS WERE IN THE LOWER TO MID 80S WITH MINIMUM HUMIDITY AROUND 25 TO 30 PERCENT. FOR TONIGHT HIGH PRESSURE WILL BE OVER THE EASTERN SEABOARD. LOWS WILL RANGE FROM THE LOWER TO UPPER 50S. WITH SOME RISING HEIGHTS THIS WILL RESULT IN SLIGHTLY WARMER TEMPS WITH HIGHS IN THE MIDDLE 80S. LARGE UPPER RIDGING WILL BUILD ACROSS THE EASTERN CONUS. FOR TUESDAY NIGHT LOWS WILL MODERATE INTO THE LOWER TO UPPER 60S.
LOWS BY EARLY TUESDAY WILL BE SEVERAL DEGREES WARMER THAN EARLY THIS MORNING. CONTINUED SOUTHERLY FLOW WILL STEER HIGHS BACK INTO THE LOWER TO MID 80S WITH THE HIGHER READINGS FAVORED IN THE SOUTHWEST FORECAST AREA.
COOLER THAN NORMAL TEMPERATURES ARE FORECAST THROUGH MIDWEEK BEFORE A WARMING TREND SETS IN FOR THE LATTER HALF OF THE WEEK.
While a cold front pushes into northwest Montana and north central Idaho. This cold front will interact with plume of moisture causing a band of light to moderate precipitation later tonight. The front should move out of the area by Tuesday afternoon causing a respite in precipitation, but temperatures on Tuesday should be around 20 degrees cooler compared to today.
HIGH PRESSURE REMAINS IN PLACE ACROSS THE MID SOUTH THIS MORNING AND WILL CONTINUE TO PROVIDE DRY AND PLEASANT LATE SUMMER WEATHER FOR THE FORECAST REGION TODAY. HIGH TEMPERATURES SHOULD TOP OUT IN THE LOWER 80S LATER TODAY.
MODELS SHOW H5 RIDGE WHICH WAS OVER EASTERN PORTIONS OF THE COUNTRY.
THIS LOW PRESSURE AREA WILL LIFT NORTH AS A WARM FRONT TONIGHT AND TUESDAY BRINGING ANOTHER MILD EVENING TONIGHT AND A WARM DAY ACROSS THE SOUTH TUESDAY. TROUGH.
324 PM EDT MON SEP 14 2015 MARINE HIGH PRESSURE WILL CONTINUE TO PROVIDE COMFORTABLE CONDITIONS ACROSS THE GREAT LAKES FOR THE NEXT FEW DAYS.
1232 PM CDT MON SEP 14 2015 FOR 18Z TAFS /ISSUED 1041 AM CDT MON SEP 14 2015/ ANOTHER CHILLY START THIS MORNING AS OVERNIGHT LOWS DIPPED EVEN COOLER THAN YESTERDAY INTO THE LOW TO MID 40S.
TONIGHT RETURN FLOW AROUND STRONG HIGH PRESSURE CENTERED OVER THE CENTRAL APPALACHIANS WILL SEND 925 MB TEMPS UP TO AROUND 20 C BY TUESDAY MORNING. WITH SOME SEMBLANCE OF WARM FRONT LIFTING THROUGH.
THE WET AND BREEZY PERIOD WILL CONTINUE THROUGH TUESDAY AS MOIST SOUTHWEST FLOW PERSISTS WITH ENERGY FROM A STRONG TROUGH PUSHING INTO THE PACIFIC NORTHWEST.
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.
515 PM EDT MON SEP 14 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE COMMONWEALTH AND PREVAIL RIGHT INTO THIS WEEKEND. AS UPPER LOW DEPARTS AND TEMPS WARM ALOFT. TO THE L50S OVER PARTS OF THE LOWER SUSQ VALLEY. SEVERAL WAVES DIGGING THROUGH THE BASE OF A FAIRLY PROGRESSIVE WEST COAST TROUGH WILL HELP TO STEADILY AMPLIFY A DOWNSTREAM. RIDGE THAT WILL BRING ANOTHER 3-4 DAYS OF SPLENDID LATE SUMMER WEATHER. AS THIS RIDGE BUILDS AT THE SFC AND ALOFT THIS WEEK.
241 PM CDT MON SEP 14 2015 High pressure will remain centered to our east and in control of our weather through the near term.
146 PM CDT MON SEP 14 2015 A HIGH PRESSURE RIDGE REMAINS IN CONTROL OVER THE EASTERN UNITED STATES TODAY. THE RIDGE WILL BEGIN TO SHIFT SLOWLY ON TUESDAY AND SOME EASTERLY FLOW WILL BE PRESENT IN THE LOWER LEVELS DURING THE DAYTIME WITH MIXING. WILL CONTINUE TO SEE THE AIRMASS MODERATE WITH SLOWLY WARMING TEMPERATURES AS THE RIDGE SHIFTS. WITH SFC RIDGING CENTERED OVER THE EAST COAST EASTERLY SFC WINDS WILL PERSIST ACROSS THE FORECAST AREA THRU THE END OF THE WORK WEEK.
DEVELOPING IN THE VICINITY OF AN APPROACHING WARM FRONT. HIGHLIGHTING THE HIGHEST POPS SOUTH OF INTERSTATE 10 AND OVER THE WATERS DURING THIS TIME. THE COASTAL TROUGH OFF OF MEXICO IS EXPECTED TO SLOWLY PUSH ONTO THE NORTHEASTERN MEXICO COAST MID-WEEK.
1134 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.
337 PM EDT MON SEP 14 2015 SKIES WILL BECOME CLEAR OVERNIGHT AS A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT BUILDS NORTHEAST FROM THE OHIO VALLEY. THIS HIGH PRESSURE AREA WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE END OF THIS WEEK. EXPECTING THIS SHOWER ACTIVITY TO DIMINISH EARLY TONIGHT AS THE CLOSED UPPER LOW OVER NORTHERN MAINE MOVES EAST INTO THE CANADIAN MARITIMES OVERNIGHT. A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD NORTHEAST FROM THE OHIO VALLEY OVERNIGHT WITH SKIES SKIES CLEARING ACROSS THE REGION. A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE REMAINDER OF THIS WEEK.
TEMPERATURES RANGE FROM THE LOWER 80S IN RAIN COOLED AREAS TO THE UPPER 80S ELSEWHERE.
653 PM EDT MON SEP 14 2015 HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE REGION AND CONTROL OUR WEATHER THROUGH AT LEAST THE END OF THE WORK WEEK WITH MAINLY CLEAR SKIES. TEMPERATURES RANGE FROM THE LOW TO MID 50S IN THE TERRAIN TO LOW 70S IN THE MID HUDSON VALLEY. WITH SOME UPPER 60S OVER THE HIGHER TERRAIN.
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. A VERY DRY AREA OF HIGH PRESSURE OVERHEAD WILL KEEP CLEAR SKIES AND LIGHT WINDS AT ALL TAF SITES THROUGH THE FORECAST PERIOD.
621 PM EDT MON SEP 14 2015 AN UPPER LEVEL AREA OF LOW PRESSURE WILL PULL OUT OF THE REGION TONIGHT ENDING THE SHOWER THREAT. LATEST HRRR MODEL HRLY SIM RADAR REF OUTPUT SHOWS MOST OF THE REST OF THE SHWR ACTIVITY DISSIPATING LATE TNGT AS THE UPPER LOW MOVES ESE FROM NRN ME INTO CNTRL NB. THIS IS ACTIVITY IS ASSOCIATED WITH AN UPPER LEVEL LOW WHICH SHOWS UP NICELY ON RADAR. CONDITIONS WILL BECOME MOSTLY DRY AFTER MIDNIGHT AS THE LOW PROPAGATES EWRD AWAY FROM OUR CWA AND A RIDGE BUILDS IN FROM THE WEST. THE RIDGE WILL BRING MUCH WARMER TEMPS AND MOSTLY SUNNY SKIES TO THE FCST AREA TOMORROW. RIDGING AT ALL LEVELS EXPECTED THROUGH THIS PERIOD BRINGING FANTASTIC LATE SUMMER WEATHER TO MAINE.
An upper level ridge will be in place across the region through the middle portions of the week with highs warming into the middle to upper 80s.
202 PM EDT MON SEP 14 2015 A LARGE AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE COMMONWEALTH AND PREVAIL RIGHT INTO THIS WEEKEND. IT'S A BRIGHT SUNNY AND DRY DAY ACROSS THE COMMONWEALTH AS HIGH PRESSURE NOSES IN FROM THE OHIO VALLEY. TO THE M70S ACROSS THE LOWER SUSQ VALLEY. LOWS RANGING FROM THE MID 40S OVER THE FAR NORTH TO AROUND 50 IN THE SOUTH WILL AVERAGE SEVERAL DEG COOLER THAN NORMAL. SEVERAL WAVES DIGGING THROUGH THE BASE OF A FAIRLY PROGRESSIVE WEST COAST TROUGH WILL HELP TO STEADILY AMPLIFY A DOWNSTREAM. RIDGE THAT WILL BRING ANOTHER 3-4 DAYS OF SPLENDID LATE SUMMER WEATHER. AS THIS RIDGE BUILDS AT THE SFC AND ALOFT THIS WEEK.
THIS BOUNDARY IS EXPECTED TO PUSH BACK NORTHWARD TONIGHT AS A WARM FRONT AND BY 00Z WED.
328 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES BY TONIGHT.
303 PM CDT MON SEP 14 2015 AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD EAST INTO THE MID SOUTH OVER THE NEXT COUPLE OF DAYS AND REMAIN OVER THE REGION THROUGH MUCH OF THE REMAINDER OF THE WEEK. DRY WEATHER AND WARMER TEMPERATURES CAN BE EXPECTED THROUGH THE WEEK.
217 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD OVER THE MID-ATLANTIC AND REMAIN OVER THE AREA THROUGH MUCH OF THE WEEK. A COLD FRONT SWINGS THROUGH THE REGION THIS WEEKEND. HIGH PRESSURE TAKING HOLD OF THE REGION UNDER A BUILDING RIDGE ALOFT THRU TONIGHT. DECENT RADIATIONAL COOLING WILL AID TEMPS IN DROPPING INTO THE 40S WEST OF THE BLUE RIDGE. ANOTHER DAY OF DRY CONDITIONS WITH THE HIGH STRENGTHENING OVER THE MID-ATLANTIC. SLIGHTLY WARMER TEMPS WITH HIGHS REACHING INTO THE 80S ACROSS EASTERN PORTIONS OF THE CWA AS WAA OVERSPREADS THE AREA. RISING HEIGHTS WITH THE BUILDING RIDGE ALOFT AND WAA AT THE SFC KEEPS A WARMING TREND CONTINUING THROUGH THE END OF THE WEEK.
AND BREEZY CONDITIONS ARE STILL EXPECTED MID INTO LATE WEEK AS A QUASI STATIONARY LEE TROF ALONG THE EASTERN EDGE OF THE ROCKIES KEEPS A SOMEWHAT TIGHT PRESSURE GRADIENT AT THE SURFACE.
413 PM EDT MON SEP 14 2015 HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD INTO THE REGION AND CONTROL OUR WEATHER THROUGH AT LEAST THE END OF THE WORK WEEK WITH MAINLY CLEAR SKIES. STLT PICS SHOW THE UPPER LEVEL TROF QUICKLY EXITING THE REGION. WITH SOME UPPER 60S OVER THE HIGHER TERRAIN.
IN ADVANCE OF A LONGWAVE TROUGH APPROACHING THE COAST. TEMPERATURES WILL BE SIGNIFICANTLY COOLER BEHIND THE FRONT AND DEPENDING ON ITS PROGRESSION.
A WEAK 500MB TROUGH IS MOVING ACROSS NORTHERN MEXICO WITH DIFFLUENCE ALOFT OWING TO ONGOING MID LEVEL SHOWERS ACROSS THE WESTERN THIRD OF THE CWA. THE WEAK SURFACE BOUNDARY IS MOVING NORTHWARD WITH A SURGE OF MOISTURE IN THE WAY OF SHOWERS HAS MOVED INLAND INTO THE LOWER VALLEY. COASTAL TROUGHING WILL MAINTAIN THROUGH THE PERIOD AND EXTEND SOUTHWARD TO A LOW PRESSURE CENTER INTO THE BAY OF CAMPECHE WHICH IS EXPECTED TO MOVE LITTLE IN THE SHORT TERM.
The front will return as a warm front over our offshore coastal waters overnight, which will allow a slight chance for rain overnight over the northern Gulf waters and near Apalachicola. Highs today will stay in the low to mid 80s and overnight lows will be in the 60s.
154 PM 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. TEMPS HAVE CLIMBED INTO THE LOW TO UPPER 70S ACROSS THE AREA. 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.
404 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH LATE WEEK. THE NEXT COLD FRONT APPROACHES FROM THE NORTHWEST BY NEXT MONDAY. ANOTHER UNSEASONABLY COOL NIGHT AHEAD WITH HIGH PRESSURE BUILDING OVER THE AREA. TEMPERATURES WILL REBOUND TO AROUND 80 OR THE LOWER 80S ACROSS THE AREA. THIS TROFFING ALONG WITH WEAK SHRT WV ENERGY MOVING UP FROM SW WILL RESULT IN SLIGHT CHC SHOWERS COASTAL SECTIONS WED NIGHT INTO SAT. WEAK COLD FRONT WILL APPROACH SUN AND MOVE THROUGH MONDAY WITH SLGT CHC TSTMS.
123 PM EDT MON SEP 14 2015 MOSTLY CLEAR SKIES PERSISTING THROUGH TAF PERIOD AS LARGE HIGH PRESSURE CENTERED OVER WEST VIRGINA HOLDS FIRM. THE POSITION OF THE LOW LEVEL ANTICYCLONE WILL SUSTAIN A LOW LEVEL SOUTHWESTERLY GRADIENT ACROSS LOWER MI THROUGH THE SHORT TERM AND WILL PLACE SE MI WITHIN A PERSISTENT LOW LEVEL WARM AIR ADVECTION REGIME. RECENT WATER VAPOR IMAGERY SHOWS A SMALLER SCALE MID LEVEL ANTICYCLONE OVER THE UPPER MS VALLEY. THIS ALONG WITH THE DRY LOW LEVEL AIR WITHIN THE RETURN FLOW OF THE LARGE LOW LEVEL ANTICYCLONE WILL PROVIDE AMPLE SUNSHINE TODAY.
430 PM EDT MON SEP 14 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW A QUIET WEATHER PATTERN WILL STAY IN PLACE THROUGH THE REST OF THE WEEK WITH HIGH PRESSURE PRODUCING DRY WEATHER AND ABOVE AVERAGE HIGHS.
610 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER THIS WEEK. HIGH PRESSURE BUILDING IN ACROSS THE REGION WILL RESULT IN MOSTLY CLEARS SKIES THE REMAINDER OF THE DAY AND OVERNIGHT. DRY CONDITIONS AND A WARMING TREND IN TEMPERATURES CAN BE EXPECTED THROUGH THE WEEK AS HIGH PRESSURE REMAINS THE DOMINANT FEATURE. 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.
1221 PM 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.
THE UPPER LEVEL LOW WILL CONTINUE TO MOVE AWAY FROM THE REGION TONIGHT AND UPPER LEVEL HEIGHTS WILL BUILD OVER THE AREA. WHICH WILL ALLOW FOR MAX TEMPS TO BE A LITTLE WARMER EACH DAY.
MOISTURE IS ON THE INCREASE WITH INCREASING COVERAGE OF SHOWERS ACROSS THE LOWER VALLEY HEADING INTO THE MIDDLE VALLEY. HAVE TEMPO SHRA IN THE LOWER VALLEY TAF SITES AND WILL METWATCH FOR MFE.
1127 AM PDT MON SEP 14 2015 A dry cold front will continue to push through the region this morning bringing breezy conditions and cooler temperatures. Cooler and showery conditions will prevail through the week as a series of Pacific storms move through the region. A second band of light rain will develop to the southeast along the leading cold front.
WATER VAPOR IMAGERY SHOWED A TROUGH DIGGING OFF THE PACIFIC NW COAST THIS AFTERNOON. THIS TROUGH WILL BE THE MAIN WEATHER MAKER FOR THE SHORT-TERM PERIOD. THE MOISTURE WILL POOL ALONG A COLD FRONT THAT WILL MOVE E INTO THE AREA LATE. THE COLD FRONT WILL CONTINUE MOVING E THROUGH THE AREA ON TUE AND PRECIPITATION WILL FILL IN BEHIND IT AS THE 700 MB FRONT MOVES INTO THE AREA. THE TROUGH THAT WAS OFFSHORE THIS AFTERNOON WILL APPROACH THE AREA ON WED AND PARTIALLY PUSH THROUGH THE AREA WED NIGHT. CONTINUED THE HIGH POPS OVER CENTRAL AND W ZONES WITH LOWER POPS E. LOW PRESSURE SYSTEM AND FRONT WILL SWEEP E OUT OF THE AREA WED NIGHT AND PRECIPITATION CHANCES WILL DECREASE OVERNIGHT. SNOW LEVELS WILL DROP TO AROUND 9000 FT WED NIGHT SO EXPECT LIGHT SNOW OVER THE HIGH TERRAIN.
Temperatures will eventually top out in the lower 90s across most of the area and gusty south winds will diminish around sunset. Sunny skies and south winds of 10-15 mph will highlight an otherwise benign day with afternoon temperatures in the low to mid 90s. Johnson (Tuesday Night through Monday) The forecast area will continue under the influence of an upper level high stationed over Central Texas through the end of the week. As a result, dry conditions will prevail along with afternoon highs in the low to mid 90s and morning lows primarily in the lower 70s.
WITH DRY HIGH PRESSURE PROVIDING AMPLE SUNSHINE THIS AFTERNOON. /ISSUED 348 AM EDT MON SEP 14 2015/ HIGH PRESSURE HAS SETTLED IN ACROSS THE SOUTHEAST REGION WITH UNSEASONABLY COOL TEMPERATURES AND LOW HUMIDITY. HIGH PRESSURE WILL DRIFT EAST BECOMING SITUATED OVER THE MID ATLANTIC BY LATE TUESDAY. THE LOW LVL /SFC-H85/ FLOW WILL BECOME EAST-SOUTHEAST TODAY AND EXPECT THIS TO CONTINUE THROUGH TUESDAY. TEMPS WILL GRADUALLY MODIFY BOTH TODAY AND TUESDAY AS A S/W RIDGE BUILDS ACROSS THE REGION.
DEW POINTS ON THE PLAINS HAVE PLUNGED TO THE LOWER 20S RESULTING IN RELATIVE HUMIDITIES DOWN TO 10 PERCENT.
THE SHORT TERM APPEARS RATHER BENIGN WITH COOLER TEMPERATURES AND PARTLY CLOUDY SKIES. A COLD FRONT CONTINUES TO MOVE THROUGH THE REGION THIS MORNING. A FEW LIGHT SHOWERS HAVE DEVELOPED ACROSS SOUTHWESTERN NORTH DAKOTA IN THE HIGHER TERRAIN. WITH SURFACE SUPPORT IN THE FORM OF A COLD FRONT.
245 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER THIS WEEK. HIGH PRESSURE BUILDING IN ACROSS THE REGION WILL RESULT IN MOSTLY CLEARS SKIES THE REMAINDER OF THE DAY AND OVERNIGHT. DRY CONDITIONS AND A WARMING TREND IN TEMPERATURES CAN BE EXPECTED THROUGH THE WEEK AS HIGH PRESSURE REMAINS THE DOMINANT FEATURE. 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.
209 PM EDT MON SEP 14 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK.
Winds will diminish to generally 12 kts or less by 01z, although gusty conditions will be possible at KABI during the late evening hours as the low-level jet intensifies. Highs will mainly be in the lower 90s.
WILL CONTINUE TO WARM UP TODAY OVER YESTERDAY, AND EVENTUALLY REACH INTO THE LOW TO MID 80S BY TUESDAY AFTERNOON.
HIGH PRESSURE OVER THE TENNESSEE RIVER VALLEY/SOUTHERN APPALACHIAN MOUNTAINS WILL BUILD EAST OVER THE MID-ATLANTIC UNITED STATES. THE END-OF-SUMMER PREVIEW MUCH OF THE WEST CENTRAL FLORIDA EXPERIENCED THIS MORNING WILL BE REPLACED WITH SLIGHTLY WARMER AND MORE HUMID CONDITIONS ON TUESDAY MORNING. TUESDAY SHOULD BE A DEGREE OR TWO WARMER AS WELL FOR MAXIMUM TEMPERATURES THAN TODAY.
329 PM EDT MON SEP 14 2015 AN UPPER LEVEL AREA OF LOW PRESSURE WILL PULL OUT OF THE REGION TONIGHT ENDING THE SHOWER THREAT. THIS IS ACTIVITY IS ASSOCIATED WITH AN UPPER LEVEL LOW WHICH SHOWS UP NICELY ON RADAR. CONDITIONS WILL BECOME MOSTLY DRY AFTER MIDNIGHT AS THE LOW PROPAGATES EWD AWAY FROM OUR CWA AND A RIDGE BUILDS IN FROM THE WEST. THE RIDGE WILL BRING MUCH WARMER TEMPS AND MOSTLY SUNNY SKIES TO THE FCST AREA TOMORROW. RIDGING AT ALL LEVELS EXPECTED THROUGH THIS PERIOD BRINGING FANTASTIC LATE SUMMER WEATHER TO MAINE.
/issued 121 PM CDT MON SEP 14 2015/ Upper ridge will build northward resulting in a continuation of unseasonably warm wx for the region. An upper trough will move ashore the NW coast the next couple of days and then move east. This trough will not be able to dislodge the ridge but will pass over the top of it. Expect little change in the day to day wx this week with few clouds and a breezy south wind due to a leeside trough over eastern CO extending down across the area.
HIGHS ON SATURDAY WILL RANGE FROM THE LOW 80S WEST TO LOW 90S EAST/NORTHEAST.
WITH THE HIGHEST POTENTIAL OF STRONGER STORMS ANTICIPATED FROM LATE THIS AFTERNOON INTO THIS EVENING AND THEN AGAIN SATURDAY AFTERNOON.
ESPECIALLY FROM TUCSON WESTWARD AND OVER THE HIGHER TERRAIN.
140 PM EDT FRI JUN 5 2015 AVIATION TODAY WILL BE CLOUDY AND COOLER COMPARED TO YESTERDAY.