Aikyam-Lab/Synoptic-Bench huggingface dataset:
1132 PM EST TUE NOV 17 2015 HIGH PRESSURE WILL CROSS THE REGION OVERNIGHT THROUGH WEDNESDAY THEN EXIT TO THE EAST WEDNESDAY NIGHT.
1046 Water vapor imagery showing well defined upper level low over the panhandle of Oklahoma, with dry slot pushing into eastern Oklahoma and eastern Kansas. This low will continue to lift northeast into Kansas tonight. Will continue to see Moderate to heavy rainfall early this evening, mainly east of the highway 65 corridor. cannot rule out shower chances through at least the morning hours Wednesday as moisture wraps around the low, but models consistent in keeping this north of the area, so went with only 14 percent probabilities. We should finally see improvement as high pressure begins to build westward into the region which will continue into Wednesday night.
Afterward, High pressure works in and should gradually dry and cool our atmosphere.
1015 PM PST TUE NOV 17 2015 NEW AVIATION DISCUSSION OFFSHORE WINDS AND HIGH PRESSURE WILL RAISE TEMPERATURES TO ABOVE NORMAL INTO THE WEEKEND.
STRONG CLOSED LOW OVER SOUTH CENTRAL KANSAS IS KEEPING WINDS UP MORE THAN EARLIER THOUGHT. WEAK COLD FRONT ARRIVES WEDNESDAY EVENING.
HIGH PRESSURE WILL MOVE INTO THE OHIO VALLEY. MAY SHAVE A DEGREE OR TWO OFF OF THE HIGHS. WITH HIGH PRESSURE NOSING INTO THE OHIO VALLEY FOR THE NEXT COUPLE OF DAYS.
SOME OF THE LATEST HIGH RESOLUTION MODELS INDICATE ISOLATED LINGERING RAINS FOR THE NEXT SEVERAL HOURS MAINLY EAST OF THE HIGHWAY 59 CORRIDOR. THE SHALLOW COLD FRONT IS WELL OFF THE COAST THIS HOUR. THE COOLER AND DRIER AIR MASS OVER CENTRAL STATE WILL MAKE ITS WAY TO THE COAST THROUGH EARLY WEDNESDAY MORNING. /ISSUED 315 PM CST TUE NOV 17 2015/ THE UPPER LOW WAS MOVING OVER THE SOUTHERN PLAINS AT MID AFTERNOON WITH THE TRAILING UPPER TROUGH MOVING ACROSS THE CENTRAL PART OF TEXAS. THE ASSOCIATED COLD FRONT HAD ALREADY MOVED EAST AND OFF THE UPPER TEXAS COAST. THE HIGHLY AMPLIFIED WILL BECOME MORE ZONAL OVER THE NEXT SEVEN DAYS. LINGERING RAIN CHANCES WILL END DURING THE EVENING AS THE MAIN UPPER LEVEL TROUGH MOVES OVERHEAD. FOLLOWING THE NEXT COLD FRONT PASSAGE.
SUSTAINED SPEEDS IN THE 25 MPH RANGE WITH GUSTS TO 35 HAVE BEEN COMMON AND WILL CONTINUE UNTIL A COLD FRONT PASSES TONIGHT. THE COLD FRONT SHOULD SHIFT INTO MIDDLE TENNESSEE AND ALABAMA BY MIDDAY TOMORROW.
OUR LATEST COLD FRONT IS NOW EXITING LOWER ACADIANA. A BROKEN LINE OF SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A COLD FRONT IS ADVANCING EAST ACROSS THE REGION EARLY THIS EVENING. /ISSUED 417 PM CST TUE NOV 17 2015/ SHOWERS AND THUNDERSTORMS ALONG AND AHEAD OF A COLD FRONT THAT HAS MOVED THROUGH SOUTHEAST TEXAS AND IS CURRENTLY MOVING THROUGH SOUTHWEST LOUISIANA THIS EVENING.
UNDER VERY DRY NORTHWESTERLY FLOW BEHIND THE UPPER LOW THAT BROUGHT US THE VERY COOL TEMPERATURES THE LAST COUPLE OF DAYS CONTINUES TO LIFT OFF WELL TO THE EAST. ESPECIALLY ACROSS THE LOWER ELEVATIONS OF SOUTH-CENTRAL AZ. NORTHWEST FLOW CONTINUES ACROSS THE REGION THIS AFTERNOON AS DEEPENING LOW PRESSURE SLOWLY TREKS EASTWARD ACROSS THE CENTRAL PLAINS. VERY DRY AIR IN THE WAKE OF THIS LOW HAS RESULTED IN MOSTLY CLEAR SKIES ALONG WITH BELOW NORMAL TEMPERATURES /IN THE UPPER 50S AND LOWER 60S AS OF 20Z/ AND AT LEAST SOME DEGREE OF BREEZINESS ACROSS SOUTHEAST CALIFORNIA.
1140 PM CST TUE NOV 17 2015 HIGH PRESSURE TO REBUILD OVERNIGHT BEHIND A COLD FRONT.
315 AM EST WED NOV 18 2015 A COLD FRONT WILL BRING SHOWERS LATER TODAY. COOLER TEMPERATURES ARE IN STORE BY THE END OF THE WEEK AND THROUGH THE WEEKEND. TIGHTENING PRESSURE GRADIENT AND DOWNLSOPING FLOW IS EXPECTED TO HELP SUSTAIN WIND GUSTS OVERNIGHT AND TODAY AS A COLD FRONT APPROACHES FROM THE WEST. ACROSS THE RIDGE TOPS AND VALLEYS NEARBY. THEREFORE A WIND ADVISORY WAS ISSUED FOR THE RIDGE ZONES AND VALLEYS WITHIN. LOW LEVEL MOISTURE TRANSPORT VIA SOUTHEAST FLOW MAY CAUSE LIGHT QPF ACROSS THE RIDGES DUE TO OROGRAPHIC LIFT. HAVE MAINTAINED CHANCE POPS IN THE HIGHER TERRAIN UNTIL THE FRONT APPROACHES. THE COLD FRONT WILL SWIFTLY CROSS THE REGION EARLY TONIGHT WITH WIDESPREAD SHOWERS.
905 PM PST TUE NOV 17 2015 OFFSHORE WINDS AND HIGH PRESSURE WILL RAISE TEMPERATURES TO ABOVE NORMAL INTO THE WEEKEND.
Across the remainder of West Central Texas, temperatures will be slightly warmer. So, we're looking at lows from the upper 30s to lower 40s, but could be a little cooler in some of our southern valley locations.
1216 AM PST WED NOV 18 2015 Strong and gusty winds will gradually decrease overnight as vigorous low pressure system exits the the area. Then a transition to cooler temperatures followed by more rain and snow showers is anticipated for late in the week. Gusts of 50 mph or more are still being reported in Uniontown, Alder Ridge and on the Camas Prairie. 06Z TAFS: A strong low pressure system is ejecting to the east and the trailing cold front is just about to drop south of Lewiston.
AREA OF RAIN ASSOC WITH MAIN UPPER LOW IN KANSAS LIFTING NORTHEAST IS A BIT FARTHER EAST THAN EARLIER PROGGED. THUS DID PUSH THE HIGH POPS A BIT EAST AND EAST OF THE RRV. SOME FOG NOTICED ESP EAST OF THE RRV ON THE WRN FLANK OF THE LOW CLOUDS WITH SEVERAL SITES FROM ROSEAU TO FOSSTON TO DTL DOWN 1/2 MILE OR LESS. CLEAR AREA OVER WRN FCST AREA WHERE TEMPS DROPPED INTO THE LOW 20S WILL WARM UP AS THERE IS A PERIOD OF SOUTHWEST WIND AHD OF THE FRONT AND COOLER AIR. HRRR INDICATES A BAND OF LIGHT PRECIP ALONG THE COLD FRONT ENTERING DVL REGION EARLY AFTN AND INTO RRV LATE AFTN.
AS THE WIND PROFILE VEERS SLIGHTLY TODAY TO THE SE, IN RESPONSE TO THE DEEP TROUGH ACROSS THE CENTRAL US AND WESTERN GULF COLD FRONT, A SOMEWHAT MORE MOIST AND UNSTABLE AIRMASS WILL BE DRAWN INTO THE ATLANTIC WATERS. IN ADDITION, SHOWERS MAY BE ARRIVING LATE DAY FOR HENDRY/GLADES/COLLIER FROM THE GULF WATERS, WELL AHEAD OF THE COLD FRONT. COLD FRONT SLOWS AND BEGINS TO STRETCH OUT ACROSS THE GULF OF MEXICO.
1021 PM MST TUE NOV 17 2015 06Z TAF CYCLE CONDITIONS HAVE VASTLY IMPROVED ACROSS NORTHERN AND CENTRAL NEW MEXICO AS DRIER NORTHWEST FLOW PREVAILS BEHIND A DEPARTING LOW PRESSURE SYSTEM.
THOUGH SOME ROBUST CELLS CONTINUE TO TRACK NE OVER THE LOWER ATCHAFALAYA BASIN. OUR LATEST COLD FRONT IS NOW EXITING LOWER ACADIANA. A BROKEN LINE OF SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A COLD FRONT IS ADVANCING EAST ACROSS THE REGION EARLY THIS EVENING. /ISSUED 417 PM CST TUE NOV 17 2015/ SHOWERS AND THUNDERSTORMS ALONG AND AHEAD OF A COLD FRONT THAT HAS MOVED THROUGH SOUTHEAST TEXAS AND IS CURRENTLY MOVING THROUGH SOUTHWEST LOUISIANA THIS EVENING.
/issued 231 PM CST TUE NOV 17 2015/ Temperatures are much cooler today behind the front with highs in the Permian Basin only expected to be in the upper 50s to lower 60s. High winds at the base of the upper trough are moving over the region resulting in a tight pressure gradient and strong winds at the surface. Surface winds will begin to weaken this evening as the upper trough over the OK and TX panhandles moves northeastward. Temperatures will likely get to freezing or below across the higher elevations, southeast New Mexico plains, and parts of Gaines County. A broad upper level trough will be over the north central conus on Wednesday with west to northwest flow over the CWA.
FLIGHT WEATHER WILL DETERIORATE TODAY DUE TO AN APPROACHING COLD FRONT.
THIS EVENING THROUGH WEDNESDAY NIGHT 21Z SURFACE ANALYSIS SHOWED STACKED UPPER LOW OVER SOUTH CENTRAL KS WITH COLD FRONT INTO WESTERN MN. STACKED UPPER LOW OVER CENTRAL KS WILL MOVE INTO NORTHWEST MO OVERNIGHT. FAST MOVING UPPER TROUGH WILL RACE ACROSS SOUTHWEST CANADA INTO EASTERN MT BY MORNING. WARM AIR ADVECTION AHEAD OF IT IN THE LOWER TROPOSPHERE WILL RESULT IN NON-DIURNAL HOURLY TEMPERATURES LATER TONIGHT IN THE WEST. STRONG SUBSIDENCE/MIXING BEHIND COLD FRONT. EVEN THE HIGHER ELEVATIONS OF THE BLACK HILLS AND FAR SOUTHWEST SD.
1150 PM CST TUE NOV 17 2015 LATEST SURFACE ANALYSIS SHOWS A WARM FRONT INTO EASTERN MONTANA WITH THE POWERFUL COLD FRONT APPROACHING SOUTHEASTERN ALBERTA.
EXPECT VFR CONDITIONS TO PREVAIL THIS EVENING INTO WED MORNING AS DRIER AND COOLER AIR CONTINUES TO FILTER INTO THE RIO GRANDE VALLEY TONIGHT IN THE WAKE OF THE COLD FRONT MOVING OFFSHORE THE LOWER TEXAS COAST EARLY THIS EVENING. A COLD FRONT WILL CLEAR THE LAND AREAS BY THIS EVENING. SEASONAL WEATHER WILL CONTINUE ON WEDNESDAY WITH HIGH TEMPERATURES STILL FCST TO BE IN THE LOWER 80S.
A very weak cold front is over Oregon with some very light precipitation over the Northwest coast that is bringing very light precipitation.
An upper low over eastern Kansas early this morning will lift rapidly north-northeast today, with height rises over our area and the flow aloft becoming west-northwest. A weak and dry cold front will move south into the Big Country late tonight.
TEMPERATURES PROFILE ALSO A DEGREE OR TWO WARMER THAN EXPECTED. THE CONVECTION FROM LAST NIGHT CAUSED A MAJOR UPHEAVAL OF THE ATMOSPHERE AND DISPLACEMENT OF THE LOW FURTHER TO THE EAST. THIS ALLOWED WARMER AIR TO GET DRAWN NORTH AND WEST.
A COLD FRONT WILL APPROACH THE MOUNTAINS FROM THE WEST THIS EVENING.
1133 PM CST TUE NOV 17 2015 WATER VAPOR SATELLITE IMAGERY SHOWING STRONG UPPER LOW BEGINNING TO LIFT NORTHEAST OVER WESTERN OKLAHOMA AND KANSAS THIS AFTERNOON. AS THE UPPER LOW LIFTS NORTHEAST ALONG THE FRONT. WE SHOULD INCREASING RAIN SHOWERS AGAIN LATE EVENING AND EARLY WED MORNING AS THE TROUGH LIFTS INTO THE AREA. THERE IS A THREAT OF ISOLATED THUNDER AS THE LOW LIFTS NORTHEAST LATER TONIGHT AS WELL. THE TRANSITION PERIOD WILL OCCUR LATE WEDNESDAY AFTN/EARLY WEDNESDAY EVENING AS A STRONG COLD FRONT MOVES ACROSS THE AREA. THERE REMAINS SOME QUESTIONS ON WHETHER THERE WILL BE ENOUGH MOISTURE ON THE BACK SIDE OF THE COLD FRONT TO GENERATE A LIGHT DUSTING OF SNOW. THAT WILL BE THE MAIN FACTOR IN COOLER THE ATMOSPHERIC COLUMN TO PRODUCE SNOW AT THE SFC WEDNESDAY AFTN/EVENING.
spreading into NW AR toward morning on the back side of low pressure as it slowly lifts northeast away from the region. /ISSUED 925 PM CST TUE NOV 17 2015/ Upper low currently centered near the OK/KS border this evening. Upper low progged to lift northeast overnight.
/ISSUED 314 PM CST TUE NOV 17 2015/ GUSTY WEST TO NORTHWEST WINDS CONTINUE ACROSS OUR AREA THIS AFTERNOON AS A STACKED LOW PRESSURE SYSTEM MOVES SLOWLY NORTHEAST THROUGH THE SOUTHERN PLAINS CENTERED OVER SRN KS AND NRN OKLA. IN THE LOWER 50S. WITH LOWS NEAR OF SLIGHTLY BELOW FREEZING ACROSS MOST OF THE CAPROCK. TROUGHS OF VARYING AMPLITUDES PASSING TO OUR NORTH WILL SERVE TO DISLODGE UNSEASONABLY COOL AIR. THE FIRST INSTANCE OF THIS IS SCHEDULED LATE WED NIGHT AND WILL PALE IN COMPARISON TO A STRONGER COLD FRONT ABOUT 48 HOURS LATER.
/61/ SOUTHERLY WINDS WILL INCREASE TODAY AHEAD OF AN APPROACHING COLD FRONT.
This second wave will drag a weak cold front through the region late tonight.
DEEP LOW PRESSURE SYSTEM WILL CONTINUE GRINDING SLOWLY NORTH NORTHEAST FROM THE CENTRAL PLAINS INTO ONTARIO THROUGH THE PERIOD. A STRONG SOUTHERLY FLOW WILL BRING UNSEASONABLY WARM AIR TO THE FORECAST AREA TODAY BUT THE WINDSPEEDS WILL BE HIGH ENOUGH TO WARRANT A CONTINUATION OF THE HIGH WIND WARNING IN THE MOUNTAINS WITH A WIND ADVISORY ACROSS THE REMAINDER OF THE REGION.
230 AM CST WED NOV 18 2015 Strong low pressure area will continue to lift northward today and reach northern MN by late this afternoon. With center of low pressure area being a 989mb low, pressure gradient is very tight, so expecting very gusty winds today, with gusts to around 40 mph possible from late this morning into the afternoon. Gusty southeast, becoming south/southwest winds will allow temps to climb back to the lower 60s in the east and mid to upper 50s in the west. Upper air pattern will be transitioning to a broad trough that covers most of the CONUS.
346 AM EST WED NOV 18 2015 HIGH PRESSURE OVER NEW ENGLAND SLIDES OFFSHORE TODAY AS A COLD FRONT APPROACHES FROM THE WEST.
BILLINGS WRIGHT CURRENT SATELLITE/RADAR IMAGERY SHOWS UPPER LEVEL LOW PRESSURE CENTER SPINNING OVER SOUTHERN KANSAS WHICH WILL THEN MOVE SLOWLY NORTHEAST OVERNIGHT. THE LATEST HIGHER RESOLUTION GUIDANCE SHOWS SOME SCATTERED LIGHT RAIN SHOWERS MOVING NEAR THE CENTER OF THE LOW OVER SOUTH CENTRAL KANSAS THIS EVENING AND OVERNIGHT HOURS. THE GROUND IS WARM AND THE SURFACE TEMPERATURES WILL BE WARMER AS WELL.
EXPECT LIGHT SOUTHERLY FLOW TO BECOME ESTABLISHED AT ALL SITES AFTER 20Z WEDNESDAY AS WEAK HIGH PRESSURE BEGINS TO SHIFT EAST OF TEXAS. COLD FRONT IS WELL SOUTH AND EAST OF THE CWA. HIGHS WEDNESDAY REBOUND INTO THE LOW TO MID 70S UNDER FULL SUN.
LOW PRESSURE AND AN ASSOCIATED COLD FRONT WILL APPROACH INDIANA FROM THE WEST TONIGHT AND CROSS THE STATE WEDNESDAY. AFTER THAT THE HOOSIER STATE IS GOING TO BE IN A PATTERN OF HIGH PRESSURE SYSTEMS AND COLD FRONTS TAKING TURNS AFFECTING OUR WEATHER.
WINDS WILL BACK TO THE EAST LESS THAN 5 KNOTS LATE WEDNESDAY NIGHT AS A WEAK COLD FRONT WORKS INTO THE METROPLEX. SOME CLOUDS ASSOCIATED WITH THE UPPER LEVEL LOW WERE APPROACHING THE NORTHWESTERN ZONES. AS THE UPPER LEVEL LOW MOVES NORTHEAST OVERNIGHT. /ISSUED 302 PM CST TUE NOV 17 2015/ A DOMINANT UPPER LOW CONTINUES TO AFFECT THE CENTRAL PORTION OF THE CONUS AND CAN BE SEEN ON SATELLITE MOVING EAST ALONG THE OKLAHOMA- KANSAS BORDER. THE COLD FRONT ASSOCIATED WITH THIS SYSTEM HAS MOVED INTO OUR WESTERN COUNTIES AND IS GENERATING STRONG SURFACE WINDS IN GRAHAM. BRECKENRIDGE. COOLER AND DRIER AIR WILL WORK ITS WAY INTO THE REGION BEHIND THE FRONT OVERNIGHT. THERE IS STILL SOME LINGERING MID-LEVEL MOISTURE WRAPPING AROUND THE UPPER LOW.
FOLLOWED BY A COLD FRONT AND STRONG WINDS. ANTICIPATE RIDGING AND CLEARING SKY ACROSS EASTERN NORTH DAKOTA. WITH TEMPERATURES DEPENDENT ON CLOUD COVER (CLEAR = BELOW FREEZING TEMPS. 75 INCHES (FAIRLY STRONG DEFORMATION ZONE FORCING AS THE MAIN UPPER LOW SWINGS NORTHWARD).
AIR TEMPERATURES IN MOST KEYS ISLAND COMMUNITIES AT THIS HOUR REMAIN PINNED NEAR OR JUST BELOW 80F THANKS TO FRESH EAST-SOUTHEAST BREEZES OFF A WARMER-THAN-AVERAGE OCEAN. THE LARGE-SCALE WEATHER PATTERN FEATURES A DEEP ANTICYCLONE CENTERED OVER THE WESTERN NORTH ATLANTIC WITH AN ASSOCIATED DEEP LAYER OF MODERATE-STRONG EASTERLIES OVER THE KEYS.
853 PM PST TUE NOV 17 2015 Strong and damaging winds are will continue through this evening as vigorous low pressure system tracks through the area. Then a transition to cooler temperatures followed by more rain and snow showers is anticipated for late in the week. Evening update 2: Cold front is moving south a touch quicker than previous thought and is already along an axis stretching from Walla Walla to Pullman and into southeastern Shoshone County. 06Z TAFS: A strong low pressure system is ejecting to the east and the trailing cold front is just about to drop south of Lewiston.
257 AM CST WED NOV 18 2015 An upper level low currently spinning over southeast Kansas will whisk off to the northeast today.
EXPECT A FEW LOWER CLOUDS IN THE NORTH IN THE MORNING AS ADDITIONAL MOISTURE COMES AROUND THE UPPER LOW MOVING THROUGH KANSAS.
202 AM EST WED NOV 18 2015 HIGH PRESSURE OVER NEW ENGLAND BUILDS SOUTH AND EAST TONIGHT. A WARM FRONT WILL LIFT NORTH OF THE AREA ON WEDNESDAY. A COLD FRONT SLOWLY APPROACHES FROM THE WEST LATE WEDNESDAY.
305 AM CST WED NOV 18 2015 Water vapor imagery depicts an impressive closed upper level low pressure system near the Wichita, Kansas area. As we head into this morning, that upper level low will pull northeast towards the Corn Belt. We will actually see a weak cold front slide through the area late tonight, but it will be "dry" in nature.
HAD TO ADJUST THE TIMING OF THE ARRIVAL OF MAIN BAND OF HEAVIER RAIN AND THUNDERSTORMS ASSOCIATED WITH UPCOMING COLD FRONT PASSAGE OVER THE NEXT 6-18 HOURS. /61/ SOUTHERLY WINDS WILL INCREASE TODAY AHEAD OF AN APPROACHING COLD FRONT.
LATEST WATER VAPOR IMAGERY SHOWS A POTENT TROUGH AND JET STREAK PLOWING ACROSS WESTERN/CENTRAL MONTANA PUSHING TOWARD NORTH DAKOTA. ASSOCIATED CLIPPER TYPE COLD FRONT NOW INTO SOUTHEAST ALBERTA WITH REGIONAL RADAR SHOWING A COUPLE OF LIGHTNING STRIKES ALONG THE FRONT NEAR GREAT FALLS MONTANA. A LEADING EDGE OF WEAK REFLECTIVITIES ASSOCIATED WITH A WARM FRONT NOW CROSSING INTO WESTERN NORTH DAKOTA. AND AWAIT THE COLD FRONTAL PASSAGE FOR INTRODUCING THE ISOLATED/SCATTERED RAIN/SNOW SHOWERS. THE COLD FRONT WILL SWEEP RAPIDLY ACROSS WESTERN NORTH DAKOTA MID MORNING.
1159 PM EST TUE NOV 17 2015 A COLD FRONT WILL BRING SHOWERS LATE WEDNESDAY. COOLER TEMPERATURES ARE IN STORE BY THE END OF THE WEEK AND THROUGH THE WEEKEND. TIGHTENING PRESSURE GRADIENT AND DOWNLSOPING FLOW IS EXPECTED TO HELP SUSTAIN WIND GUSTS OVERNIGHT AND TODAY AS A COLD FRONT APPROACHES FROM THE WEST. LOW LEVEL MOISTURE TRANSPORT VIA SOUTHEAST FLOW MAY CAUSE LIGHT QPF ACROSS THE RIDGES DUE TO OROGRAPHIC LIFT. HAVE MAINTAINED CHANCE POPS IN THE HIGHER TERRAIN UNTIL THE FRONT APPROACHES.
953 PM MST TUE NOV 17 2015 CLOSED UPPER LOW CIRCULATION MAY HAVE MOVED TO THE SRN PLAINS. MOISTURE WILL BE INCREASING OVER THE NRN MOUNTAINS AS THE NEXT TROUGH MOVES ACROSS THE NRN INTERMOUNTAIN REGION. DESPITE THE HIGHEST IMPACT BEING OVER RABBIT EARS PASS.
A COLD FRONT HAS REACHED THE COAST AND WILL SWEEP ACROSS OUR AREA TONIGHT WITH GUSTY WINDS. SOUTHWEST WINDS WILL BE STRONGEST OVER RIDGES AND ACROSS THE EAST SIDE AROUND MIDNIGHT AND GRADUALLY VEER TO NORTHWEST INTO WEDNESDAY MORNING.
306 AM CST WED NOV 18 2015 The stacked low pressure system currently over central KS is forecast to lift northeastward through the morning hours. At the surface an inverted trough bisected the area from southwest to northeast. Winds on the north side of the trough are currently out of the north which is driving low level cold advection. These cooler temperatures have caused areas of fog and low ceilings. As the low lifts through the area decent low level frontogenesis will cause enough lift for scattered showers on the northwest side of the trough. Temperatures will rise into the low to mid 50s today and winds increase out of the west southwest up to 25 mph. This evening the low pressure system becomes an open wave and lifts over the upper Midwest and Great Lakes region.
1010 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL PERSIST ACROSS THE AREA THROUGH THE WEEKEND. WK TROUGH ALOFT INVOF ERN STATES CONTS TO WEAKEN SUN NGT INTO MON. HIGH PRESSURE WILL REMAIN OVER THE NORTHERN PART OF THE MID ATLANTIC STATES AND LIGHT WINDS GRADUALLY SHIFTING TO E/SE.
WINDS STILL ON TRACK TO INCREASE DURING THE AFTERNOON AND EVENING AS A COLD FRONT APPROACHES FROM THE WEST.
BECAUSE OF THE CIRCULATION OF THESE FEATURES AROUND THE LARGE RIDGE TO THE WEST.
THERE HAS BEEN SOME DISAGREEMENT IN THE HANDLING OF THE ACTIVITY FRIDAY BUT IT IS LIKELY THAT THE LOW LEVEL MOISTURE FIELD WAS NOT ACCURATELY RESOLVED.
744 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL EXTEND FROM THE OHIO VALLEY EASTWARD INTO THE DELMARVA REGION THROUGH FRIDAY. HIGH PRESSURE WILL CONTINUE TO RIDGE INTO THE FORECAST AREA FRIDAY. TEMPERATURE GUIDANCE HAS BEEN CONSISTENT WITH HIGHS IN THE LOW 90S AND LOWS IN THE UPPER 60S FRIDAY NIGHT.
HIGH PRESSURE WILL MAINTAIN DRY AND SEASONABLE CONDITIONS ACROSS THE OHIO VALLEY THROUGH FRIDAY.
929 PM EDT THU AUG 13 2015 A LINGERING UPPER TROUGH WILL PRODUCE SCATTERED SHOWERS INTO EARLY THIS EVENING MAINLY ACROSS NH AND THE MOUNTAINS OF WESTERN MAINE. THE TROUGH MOVES EAST TONIGHT AND HIGH PRESSURE BUILDS EAST INTO THE REGION TONIGHT AND FRIDAY.
754 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL PERSIST ACROSS THE AREA THROUGH THE WEEKEND. WK TROUGH ALOFT INVOF ERN STATES CONTS TO WEAKEN SUN NGT INTO MON. HIGH PRESSURE WILL REMAIN OVER THE NORTHERN PART OF THE MID ATLANTIC STATES AND LIGHT WINDS GRADUALLY SHIFTING TO E/SE.
SEEMS LIKE A PLAUSIBLE SOLUTION BASED OFF WATER VAPOR AND THE POSITION OF THE UPPER RIDGE TO THE WEST.
Huber (Friday night through Thursday) The center of the upper ridge will move westward this weekend, with surface temperatures dropping 2-3 degrees.
SHOULD BE A QUIET AND ANOTHER QUIET NIGHT ON TAP FOR THE COAL FIELDS WITH HIGH PRESSURE COMMANDING THE SENSIBLE WEATHER. WITH TROUGHING ALONG THE EASTERN SEABOARD. RIDGING ACROSS THE ROCKIES. AND TROUGHING OFF OF THE WEST COAST. DAMPENING THE WESTERN CONUS TROUGH AS IT MOVES IN ACROSS THE PACIFIC NORTHWEST. THE UPPER LEVEL RIDGE AXIS WILL SHIFT TOWARDS THE GREAT LAKES.
AND WITH THE UPPER RIDGING OVER THE REGION THE CAP SHOULD BE STRONG ENOUGH TO SUPPRESS ANY CU AND/OR THUNDERSTORMS.
721 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL EXTEND FROM THE OHIO VALLEY EASTWARD INTO THE DELMARVA REGION THROUGH FRIDAY. HIGH PRESSURE WILL CONTINUE TO RIDGE INTO THE FORECAST AREA FRIDAY. TEMPERATURE GUIDANCE HAS BEEN CONSISTENT WITH HIGHS IN THE LOW 90S AND LOWS IN THE UPPER 60S FRIDAY NIGHT.
WEAK FRONTAL TROUGH TO OUR NORTH IS FORECAST BY THE 18Z GFS TO SAG THROUGH NORTHERN SECTIONS OVERNIGHT. WEAK FRONTAL BOUNDARY/TROUGH WILL SHIFT FARTHER SOUTHWARD INTO LAKE/VOLUSIA COUNTIES FRI. MODELS INDICATE RELATIVELY COOLER MID LEVEL TEMPS. THE MID LEVEL TROUGH RETROGRADES TO THE MISSISSIPPI RIVER DELTA/NORTH CENTRAL GULF COAST SAT AND STAYS IN THE AREA SUN. HIGH PRESSURE RIDGE BUILDS FROM THE WESTERN ATLANTIC INTO THE MID MISSISSIPPI RIVER VALLEY(TENN/ARKANSAS. WEAK FRONTAL TROUGH IS FORECAST TO SAG TO NEAR OUR NORTHERN TERMINALS ESPECIALLY KDAB/KSFB/KLEE TONIGHT. THE LOW BUT CONFIDENCE IS TOO LOW TO MENTION AT THE TERMINALS YET SINCE UPPER LEVEL SOUTHWEST WINDS SHOULD CONTINUE TO PUSH SOME DEBRIS CLOUDS ACROSS THE AREA.
1151 PM CDT THU AUG 13 2015 ANOTHER QUIET NIGHT WITH HIGH PRESSURE REMAINING IN CONTROL OF THE LOCAL WEATHER. HIGH PRESSURE DOMINATING THE WEATHER ACROSS THE REGION. LIGHT SOUTHWESTERLY WINDS EXPECTED TO DROP OFF EVEN MORE IN THE OVERNIGHT HOURS UNDER THE RIDGE AND ADOPT A BIT OF VARIABILITY IN THE LACK OF PATTERN. MODELS INDICATE THAT THE HIGH PRESSURE WILL BE SLOW TO DRIFT OFF TO THE EAST, AND SO THE RETURN OF LOW LEVEL MOIST AIR WILL ALSO BE GRADUAL.
703 PM EDT THU AUG 13 2015 HIGH PRESSURE WILL MAINTAIN DRY WEATHER AND WARMER TEMPERATURES THROUGH FRIDAY.
MAX TEMPS TOMORROW WILL BE A BIT COOLER THAN TODAY. \/HODANISH THE UPPER LEVEL RIDGE WILL SLOWLY MOVE INTO THE DESERT SOUTHWEST AS AN UPPER LEVEL TROF MOVES ACROSS THE PACIFIC NORTHWEST INTO SRN CANADA OVER THE WEEKEND.
THE WAVE SHOULD CONTINUE TO MOVE AROUND THE PERIPHERY OF THE UPPER HIGH AND THROUGH THE PLAINS TONIGHT.
/ISSUED 353 PM CDT THU AUG 13 2015/ UPPER LEVEL RIDGE REMAINS SITUATED OVER AND JUST WEST OF THE PANHANDLES. FRIDAY'S WEATHER LOOKS FAIRLY SIMILAR WITH POSITION OF THE RIDGE NOT CHANGING MUCH.
The short term period continues to be a rather benign period with high pressure at the surface and rising heights/ridging aloft. ECMWF spreads QPF northwest across our entire region due to an upper level low moving across the PAH forecast area, while the Canadian show this upper low farther east and only putting any QPF over our southeast counties.
COLD FRONT WITH WIND SHIFT TO SW-W AND PRESSURE RISES WAS ACROSS CENTRAL OREGON PAST ELLENSBURG WA AND REDMOND OREGON. MVFR CONDITIONS POSSIBLE DUE TO WILDFIRES IN THE LOWER TREASURE AND BAKER VALLEYS. SERLY 10-20 KTS WITH GUSTS 20-30 KTS ALONG RIDGETOPS AND S OF THE SNAKE.
HIGH PRESSURE ALOFT BUILDING INTO THE REGION FROM THE EAST WILL BRING VERY HOT HIGH TEMPERATURES THIS WEEKEND WITH AN OVERALL DECREASE IN THUNDERSTORM ACTIVITY.
HIGH PRESSURE (1019 MILLIBARS) WAS BUILDING OVER THE OHIO AND TENNESSEE VALLEYS. BROAD TROUGHING EXTENDS ALONG THE U. SUBSTANTIAL RIDGING COVERS MUCH OF THE ROCKIES AND SOUTHERN PLAINS STATES. ONSHORE FLOW WILL TEND TO STRENGTHEN OVER COASTAL SOUTHEAST GA OVERNIGHT AS THE PRESSURE GRADIENT TIGHTENS WITH RIDGING EXPANDING TO OUR NORTH. LOWS WILL RANGE FROM THE LOWER 70S INLAND TO THE UPPER 70S AT THE COAST. INLAND HIGHS WILL GENERALLY REACH THE LOWER 90S. HIGH PRESSURE WILL STRENGTHEN OVER THE MID-ATLANTIC REGION.
THE UPPER HIGH NR THE FOUR CORNERS MOVES VERY LITTLE THRU FRIDAY. HIGH TEMPS WILL BE WARMER FOR FRIDAY WITH HIGHS CLIMBING WELL INTO THE 80S WITH 90S BELOW 5500 FEET.
WITH GENERALLY LIGHT AND VARIABLE WIND FLOW THROUGH THE LOWEST 10000 FEET OF THE ATMOSPHERE.