Aikyam-Lab/Synoptic-Bench huggingface dataset:
938 AM EDT THU AUG 20 2015 A COLD FRONT OVER INDIANA WILL SLOWLY APPROACH THE AREA TODAY. FREEZING LEVELS QUITE HIGH AT NEARLY 5KM MEANING VERY WARM RAIN PROCESSES WILL DOMINATE AND INCREASE RAINFALL EFFICIENCY. COLD FRONT PUSHES EAST ACROSS THE AREA LATE THIS AFTERNOON INTO THE OVERNIGHT. FRONT PUSHES EAST FROM THE BLUE RIDGE LATE THIS EVENING. AND ANOTHER UPR LVL TROF/LOW PRES/CD FNT WL BE MOVG INTO THE UPR GRT LKS AND THEN INTO QUEBEC TUE/WED. WIDESPREAD SHRA/TSRA SPREADS EAST ACROSS THE DC METROS LATE THIS AFTERNOON THROUGH THE EVENING AS A COLD FRONT CROSSES THE AREA. THEN LULL BEFORE WIDESPREAD HEAVY AND GUSTY SHOWERS/THUNDERSTORMS LATE THIS AFTERNOON INTO THE OVERNIGHT AS A COLD FRONT CROSSES THE BAY BEFORE STALLING ALONG THE MID-ATLANTIC COAST.
749 AM EDT THU AUG 20 2015 A COLD FRONT ACROSS OHIO WILL MOVE EAST BY EARLY AFTERNOON. HIGH PRESSURE WILL THEN DRIFT NORTH INTO THE AREA AND DOMINATE THE WEATHER FOR THE WEEKEND. A COLD FRONT.
621 AM CDT THU AUG 20 2015 TODAY HEIGHTS BEGIN TO FALL ACROSS THE INTERMOUNTAIN WEST WHERE THE PREVAILING NORTHWEST FLOW ALOFT WILL FOCUS THE LEE TROUGH ON THE HIGH PLAINS. FRIDAY A TROUGH/DRY LINE WILL PUSH INTO THE FAR WESTERN PORTION OF NEB. MEANWHILE A COLD FRONT WILL BE PUSHING SOUTHEAST ACROSS THE NORTHERN ROCKIES. OTHER FOCUS FOR THE AFTERNOON WILL BE WEST OF THE TROUGH. THEN EYES FOCUS ON THE COLD FRONT.
GRADIENT AND MOISTURE ARE INCREASING FROM THE COASTAL WATERS INTO OUR AREA FROM THE SOUTH AS LOW PRESSURE DEVELOPS OVER THE TEXAS PANHANDLE AND THE FETCH BECOMES MORE SOUTHEASTERLY. NOTED SOME SHORT WAVE ENERGY AND THETA RIDGING TNITE CONTINUING INTO TUESDAY. WENT AHEAD AND INCREASED LATE NITE POPS WITH THE HIGHER CHANCES FROM THE COASTAL WATERS WHERE RADAR IS CURRENTLY SHOWING ACTIVITY NORTHWARD. 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.
VFR CONDITIONS EXPECTED TO CONTINUE WITH HIGH PRESSURE SUPPRESSING ANY CHANCE FOR RAIN.
With time this activity will spread eastward however latest trends in short term data suggest the highest chances for precip will remain just north of our forecast area.
THIS COMBINED WITH A BROAD INVERTED COASTAL TROUGH WILL BRING ADDITIONAL SHOWERS TO OUR SOUTHERN COASTAL ZONES AFTER MIDNIGHT TONIGHT.
935 PM EDT MON SEP 14 2015 THE NEAR TERM 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.
1013 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. 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.
A BROAD UPPER TROF IS DIGGING INTO THE WESTERN STATES THIS EVE. A SHORT WAVE IN THE BASE OF THIS TROF IS WELL DEFINED IN WATER VAPOR IMAGERY CURRENTLY MOVING INTO ERN NV AND DYNAMICS AHEAD OF THIS WAVE GAVE A BIG BOOST TO THE CONVECTION ACROSS OUR CWA THIS AFTN INTO THIS EVE. EXPECT CONVECTION TO REMAIN ACTIVE OVERNIGHT THRU TUE AS THE SHORT WAVE OPENS UP AND LIFTS NEWD PHASING WITH THE WEST COAST WAVE AS IT TOO LIFTS NEWD IN RESPONSE TO A NEW TROF DIGGING THRU THE ERN PAC INTO THE PACNW.
1017 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.
918 PM EDT MON SEP 14 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK.
MOVING WEST TO EAST ACROSS THE CENTRAL PLAINS THE PRESSURE GRADIENT INCREASED DUE TO THE TRANSITION FROM LEE TROUGHING CENTERED OVER THE HIGH PLAINS TO HIGH PRESSURE EAST OF THE MISSISSIPPI RIVER VALLEY. THESE STRONG WINDS WILL ALLOW FOR CONVERGENCE TO INCREASE ALONG THE LEE TROUGH DURING THE AFTERNOON HOURS.
947 PM EDT MON SEP 14 2015 A LARGE HIGH PRESSURE SYSTEM WILL BUILD IN, TO BRING DRY WARM WEATHER, FOR MOST OF THE WEEK.
837 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. 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.
LOOPING SATELLITE WATER VAPOR AND INFRARED IMAGERY INDICATE A MID/UPPER LEVEL TROUGH AXIS ALONG THE CASCADE CRESTS, WHICH WILL SWING THROUGH EASTERN SECTIONS OF WA/OR OVERNIGHT. THE NEW 00Z RUN FROM NAM12 MODEL SHOWS RAIN ENDING IN FAR EASTERN WALLOWA COUNTY BY 3 AM AS THE TROUGH AXIS EXITS THE REGION INTO IDAHO. LOOK FOR INCREASING MID AND HIGH CLOUDS TUESDAY AFTERNOON AHEAD OF A COUPLE OF FAST MOVING MID/UPPER LEVEL DISTURBANCES MOVING SOUTHEAST TOWARD THE PACIFIC NORTHWEST ON THE WESTERN FLANK OF A LONG WAVE MID/UPPER LEVEL TROUGH CENTERED OFFSHORE ALONG 130W. MID AND HIGH CLOUDS CONTINUE THIS EVENING AS A MID/UPPER LEVEL SHORT WAVE HAS MOVED INLAND AND SWINGS THROUGH THE EASTERN FLANK OF A LONG WAVE TROUGH JUST OFFSHORE AND MOVES ACROSS THE EASTERN SECTIONS OF WA/OR OVERNIGHT WITH SOME CLEARING EXPECTED OVERNIGHT.
UPDATED THE FORECAST TO BUMP UP DEWPTS A BIT AS LIGHT ADVECTION OF SLIGHTLY MORE MOIST AIR HAS RESULTED IN DEWPTS MAINLY IN THE LOWER 50S OVER CENTRAL KY. LOW TEMPS STILL LOOK TO BOTTOM OUT IN THE LOWER 50S WITH A FEW UPPER 40S POSSIBLE. AS HIGH PRESSURE OVER OR JUST EAST OF COMBINED WITH RIDGING ALOFT PROVIDE DRY CONDITIONS AND CLEAR SKIES.
625 PM CDT MON SEP 14 2015 AVIATION DISCUSSION 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.
727 PM EDT MON SEP 14 2015 A LARGE HIGH PRESSURE SYSTEM WILL BUILD IN, TO BRING DRY WARM WEATHER, FOR MOST OF THE WEEK.
The 00Z model data is a little more aggressive with the low cloud development. 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.
A LOW PRESSURE SYSTEM WILL KEEP THE AREA COOL AND UNSETTLED THROUGH TUESDAY.
1157 PM EDT MON SEP 14 2015 THE INFLUENCE OF A LARGE AREA OF HIGH PRESSURE OVER THE MID ATLANTIC STATES WILL ENSURE FAVORABLE AVIATION CONDITIONS IN SE MICHIGAN FOR THE REST OF TONIGHT THROUGH TODAY AND TUESDAY NIGHT. 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.
1125 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. 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.
1204 AM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER FOR THE REST OF THE WEEK. CLEAR SKIES ARE EXPECTED THROUGH THE DAY UNDER HIGH PRESSURE. 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.
SO EXPECTING TEMPERATURES TO BE A LITTLE WARMER TONIGHT. TWEAKED THE HOURLY VALUES TO ACCOUNT FOR SLIGHTLY WARMER TEMPERATURES IN A FEW SPOTS.
920 PM PDT MON SEP 14 2015 A TROUGH OF LOW PRESSURE WILL BRING CLOUDY SKIES AND SHOWERS ALONG WITH BELOW NORMAL TEMPERATURES THROUGH TUESDAY.
1230 AM EDT TUE SEP 15 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.
1031 PM EDT MON SEP 14 2015 SKIES WILL GRADUALLY BECOME MOSTLY CLEAR OVERNIGHT FROM WEST TO EAST AS A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT BUILDS NORTHEAST FROM THE OHIO VALLEY. THIS HIGH PRESSURE SYSTEM WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE END OF THIS WEEK.
748 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. WITH SOME UPPER 60S OVER THE HIGHER TERRAIN.
/ISSUED 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.
1011 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD INTO THE REGION AT THE SURFACE AND ALOFT.
/ISSUED 625 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.
739 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.
UPPER LEVEL TROUGH IS PUSHING ONTO THE WEST COAST. COLD FRONT WILL PUSH ACROSS THE REGION AFTER MIDNIGHT AND INTO THE MAGIC VALLEY AROUND NOON MDT TUESDAY.
A BREEZY AND WARM DAY WITH DEWPOINTS IN THE MIXED LAYER BELOW THE INVERSION ALOFT CREEPING INTO THE LOWER 60S. A WEAK WAVE DOES RIDE UP THE BACK SIDE OF THE RIDGE BY LATE TUESDAY AFTERNOON. STARTING TONIGHT MAINLY AT HIGHER ELEVATIONS AND THE LEE OF THE BUFFALO RIDGE. THE LOW LEVEL JET WHICH LOOKED GOOD YESTERDAY IS STILL THERE BUT LOOKING PRETTY BROAD.
848 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 WILL BUILD OVERHEAD TONIGHT AND REMAIN IN CONTROL THROUGH THE END OF THE WEEK ALTHOUGH IT WILL BEGIN WEAKENING ON WED. RISING HEIGHTS WITH THE BUILDING RIDGE ALOFT AND WAA AT THE SFC KEEPS A WARMING TREND CONTINUING THROUGH THE END OF THE WEEK.
1000 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.
WITH A LOW PRESSURE CENTER AT THE CENTRAL BORDER OF MONTANA AND WYOMING AND ANOTHER CENTER OVER WESTERN SOUTH DAKOTA. THE COOL HIGH PRESSURE CENTER WAS OVER ONTARIO NEAR HUDSON BAY. THE SOURCE OF COOLER AIR WITH DEWPOINTS IN THE 40S AND 50S. THIS MORE HUMID AIR WILL BE MOVING NORTHWARD OVER THE TOP OF THE COOLER AIR OVER NORTH DAKOTA. 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.
QUIET WEATHER CONDITIONS AGAIN TONIGHT WITH THE DRY RIDGE PATTERN IN PLACE. CHATTANOOGA AIRPORT, TN 54 83 56 82 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 52 81 54 81 / 0 0 0 0 OAK RIDGE, TN 52 80 54 81 / 0 0 0 0 TRI CITIES AIRPORT, TN 46 80 47 80 / 0 0 0 0.
723 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. VERTICALLY STACKED LOW PRESSURE SYSTEM CONTINUES TO PULL AWAY FROM THE AREA THROUGH NEW BRUNSWICK AND ACROSS THE CANADIAN MARITIMES OVERNIGHT. A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BUILD NORTHEAST FROM THE OHIO VALLEY OVERNIGHT WITH RIDGE AXIS REACHING NRN NY BY 12Z TUESDAY. GENERALLY LOOKING AT EARLY AM LOWS IN THE LOWER 50S. A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE REMAINDER OF THIS WEEK.
748 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.
SFC ANALYSIS ALSO SHOWS A TROUGH AXIS PUSHING WESTWARD ACROSS CUBA AND FL STRAITS.
814 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL STALL OVER THE MID ATLANTIC REGION AND STRENGTHEN EARLY THIS WEEK. 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.
747 PM EDT MON SEP 14 2015 AVIATION HIGH PRESSURE WILL CONTINUE TO PROVIDE COMFORTABLE CONDITIONS ACROSS THE GREAT LAKES FOR THE NEXT FEW DAYS.
MOISTURE RETURN HAS BEGUN IN THE LOW LEVELS AS DEWPOINTS HAVE RISEN AT LEAST SEVERAL DEGREES SINCE THIS MORNING THROUGH 5000 FEET.
1107 PM EDT MON SEP 14 2015 AN UPPER LEVEL AREA OF LOW PRESSURE WILL DRIFT OVERHEAD TONIGHT. HIGH PRESSURE WILL REMAIN NEARLY STATIONARY JUST OFF THE EAST COAST THROUGH MUCH OF THE WORK WEEK.
SUBSIDENCE UNDER THE INFLUENCE OF HIGH PRESSURE ALONG WITH LIMITED MOISTURE ADVECTION KEEPS FLIGHT WEATHER CONDITIONS QUITE NICE THROUGH THE PERIOD.
953 PM EDT MON SEP 14 2015 AS THE TROUGH ACROSS THE REGION CONTINUES TO MOVE WESTWARD. /ISSUED 806 PM EDT MON SEP 14 2015/ A TROUGH MOVING WESTWARD HAS ENTERED THE LOCAL ATLANTIC WATERS AND WILL CONTINUE MOVING WESTWARD THIS EVENING AND OVER NIGHT. 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.
806 PM EDT MON SEP 14 2015 A TROUGH MOVING WESTWARD HAS ENTERED THE LOCAL ATLANTIC WATERS AND WILL CONTINUE MOVING WESTWARD THIS EVENING AND OVER NIGHT. 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.
920 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES BY TONIGHT.
942 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BUILD EASTWARD INTO THE MID-ATLANTIC STATES BY TONIGHT.
A MODERATE TO STRONG EASTERLY WIND FLOW WILL REDEVELOP LATE TONIGHT AND CONTINUE THROUGH EARLY TUESDAY AS STRONG HIGH PRESSURE CONTINUES TO BUILD ALONG THE EASTERN SEABOARD AND SOUTHEAST STATES. HIGHER WINDS AND SEAS MOSTLY DURING THE LATE NIGHT AND MORNING HOURS WILL CONTINUE THROUGH MUCH OF THE WEEK AS A WELL DEFINED THERMAL GRADIENT DEVELOPS EACH NIGHT BETWEEN INLAND AREAS AND THE WARMER GULF WATERS. 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.
THE REGION WILL SEE A GRADUAL INCREASE IN HIGH- AND MID-LEVEL CLOUD COVER THIS EVENING AS WIDESPREAD MOISTURE ARRIVES AHEAD OF A COLD FRONT CURRENTLY IN MOVING ACROSS IDAHO.
A WEAK ANTICYCLONE SPINS OVER WESTERN CUBA. THE LOW LEVEL TROUGH AXIS WILL PRESS WESTWARD OVERNIGHT. ESPECIALLY SINCE THERE WILL BE A MERGING HIGH PRESSURE SYSTEM ACROSS THE WESTERN NORTH ATLANTIC.
928 PM PDT MON SEP 14 2015 A TROUGH ALONG THE WEST COAST WILL BRING MOISTURE FROM THE REMNANTS OF FORMER HURRICANE LINDA INTO THE REGION OVERNIGHT.
SE MICHIGAN WILL REMAIN BETWEEN A BROAD REGION OF HIGH PRESSURE CENTERED OVER THE MID ATLANTIC STATES AND A COLD FRONT THAT WILL BE WEAKENING OVER THE UPPER MIDWEST. 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.
A DEEPENING LEE TROUGH OUT EAST WILL ALLOW FOR BREEZY SW WINDS DURING THE MID TO LATE AFTERNOON HOURS. AN UPPER LEVEL TROUGH TRAVERSING THE CENTRAL AND NORTHERN ROCKIES FROM CALIFORNIA WILL SHOULD DRAW ENOUGH MOISTURE NORTHWARD FOR A BRIEF UPTICK IN SHOWER AND THUNDERSTORM COVERAGE ACROSS NORTHWEST AND WEST CENTRAL NEW MEXICO TONIGHT.
910 PM EDT MON SEP 14 2015 AN UPPER LEVEL AREA OF LOW PRESSURE WILL DRIFT OVERHEAD TONIGHT. HIGH PRESSURE WILL REMAIN NEARLY STATIONARY JUST OFF THE EAST COAST THROUGH MUCH OF THE WORK WEEK.
740 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.
77 /ISSUED 249 PM CDT MON SEP 14 2015/ A LARGE AREA OF HIGH PRESSURE CENTERED ACROSS THE APPALACHIANS THIS AFTERNOON WAS PROVIDING FOR PLENTY OF SUNSHINE AND SLIGHTLY BELOW NORMAL TEMPS IN THE MID-UPPER 70S. THE HIGH PRESSURE RIDGE AXIS IS EXPECTED TO MOVE SLOWLY NORTHEAST WITH TIME THROUGH THE WEEK.
1057 PM EDT MON SEP 14 2015 COOL CANADIAN HIGH PRESSURE WILL BRING LOW HUMIDITY AND COOL NIGHTS THROUGH MID WEEK. WITH THE CENTER OF A DOME OF HIGH PRESSURE TO PARTIALLY MOVE OVERHEAD OVERNIGHT. 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.
1225 AM EDT TUE SEP 15 2015 AVIATION HIGH PRESSURE WILL CONTINUE TO PROVIDE COMFORTABLE CONDITIONS ACROSS THE GREAT LAKES FOR THE NEXT FEW DAYS.
955 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND. A WEAK TROUGH OF LOW PRESSURE WILL DEVELOP OFF THE SOUTHEAST U.
920 PM EDT MON SEP 14 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER THIS WEEK. STILL COULD SEE LOCALIZED FOG IN THE COOLER VALLEYS BUT DO NOT THINK THIS WILL BE PARTICULARLY DENSE OR WIDESPREAD. ANOTHER SUNNY DAY IS FORECAST FOR TUESDAY WITH AFTERNOON HIGHS ABOUT 6-8 DEGREES WARMER THAN TODAY. CL 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.
957 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 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.
HIGH AMPLITUDE UPPER RIDGING ALONG THE WEST COAST AS PACIFIC FRONTAL SYSTEM APPROACHES. RIDGE AXIS SHIFTS EAST THIS MORNING AS FRONT BEGINS PUSHING INLAND ACROSS FAR NORTHERN PORTIONS OF CALIFORNIA. DRIER AND WARMER WEATHER ON TAP THIS WEEK AS UPPER RIDGING REESTABLISHES ITSELF OVER CALIFORNIA.
633 AM CST SUN FEB 21 2016 A cold front was positioned directly over the Interstate 44 corridor at 3am this morning. For tonight, much cooler temperatures are expected with lows falling into the 30s. A cold Canadian long wave trough will park across the Hudson Bay, bringing in a series of frontal passages to the Ozarks.
THE UPPER LEVEL RIDGE CURRENTLY IN CONTROL OVER SOUTHERN OREGON AND NORTHERN CALIFORNIA WILL EFFECTIVELY SHUT THE SYSTEM DOWN AS IT MOVES ONSHORE, AND COMPARED TO PREVIOUS EVENTS, VERY LITTLE IMPACTS ARE EXPECTED. PRECIPITATION WILL BE LIGHT AND MAINLY CONCENTRATED ALONG THE COAST AND THE HIGHER TERRAIN OF THE CASCADES, WHERE UPSLOPE PRODUCTION WILL BE STRONGEST.
None of the high resolution models show any precip east of the Wenatchee area for the 18Z to 00Z period. Min temps fell below the freezing mark for most of the forecast area this morning but mostly clear skies over the last couple of hours have allowed temps to rise above freezing east of the Waterville. /Kelch 18Z TAFS: High clouds will thicken this morning before a fast moving cold front brings lower ceilings with isolated showers to the western TAF site areas between 22Z and 02Z.
1209 PM CST SUN FEB 21 2016 /18Z TAFS/ Mid and upper level clouds are obscuring the behavior of low clouds developing behind the cold front that is moving through the area. The cold front is expected to move through KSJT and KBBD in the next 2-3 hours, and the I-10 corridor later this afternoon. A cold front will slowly move through the area today, with north winds of 6 to 12 knots behind it. Cooler temperatures will also filter in behind the front along with north winds of 10 to 15 mph.
MOST OF THESE ARE LIKELY SPRINKLES, TO VERY LIGHT ACCUMULATIONS, AND SHOULD CONTINUE IN THIS MANNER THROUGH THE AFTERNOON AS HIGH PRESSURE BEGINS TO WEAKEN TODAY. /ISSUED 444 AM EST SUN FEB 21 2016/ HIGH PRESSURE REMAINS IN CONTROL THIS SUNDAY MORNING.
1259 PM EST SUN FEB 21 2016 TEMPERATURES WILL BE COOLER TODAY.
WEAK HIGH PRESSURE WILL BUILD OVER CENTRAL AND SOUTHWEST MONTANA TODAY.
in the lower to mid 40s during the days and a bit below freezing at night.
1000 AM MST SUN FEB 21 2016 UPPER FLOW WILL BE NORTHWESTERLY TODAY AND TONIGHT AND THEN BECOME MORE WESTERLY AS THE UPPER TROUGH APPROACHES THE HIGH PLAINS.
The front is advancing south and will clear out the low level moisture. SKIES RANGE FROM CLEAR TO IFR THIS MORNING ACROSS EASTERN OKLAHOMA AND WESTERN ARKANSAS AS A COLD FRONT MOVES THROUGH THE REGION. /ISSUED 321 AM CST SUN FEB 21 2016/ A cold front has entered northeast Oklahoma early this morning and will sweep south across the rest of the forecast area today. Temperatures will be quite a bit cooler behind the front today, but will still be several degrees above normal.
A cold front will slowly move through the area today, with north winds of 6 to 12 knots behind it. Cooler temperatures will also filter in behind the front along with north winds of 10 to 15 mph.
/ISSUED 444 AM EST SUN FEB 21 2016/ HIGH PRESSURE REMAINS IN CONTROL THIS SUNDAY MORNING.
337 AM MST SUN FEB 21 2016 UPPER FLOW WILL BE NORTHWESTERLY TODAY AND TONIGHT AND THEN BECOME MORE WESTERLY AS THE UPPER TROUGH APPROACHES THE HIGH PLAINS.