Aikyam-Lab/Synoptic-Bench huggingface dataset:
OTHERWISE EXPECT ANOTHER COOL/DRY/MOSTLY SUNNY DAY WITH HIGHS IN THE LOW/MID 60S. FOR TONIGHT EXPECT TEMPS TO ONCE AGAIN DROP INTO THE LOW/MID 30S WITH LIGHT WINDS.
AND THE SLIGHTLY WARMER TEMPERATURES AND BREEZY SOUTHWEST WINDS EXPECTED DURING THE DAY SUNDAY. UPPER LEVEL RIDGE AXIS CURRENTLY SITUATED OVER MINNESOTA WILL SHIFT TO THE EAST TONIGHT WITH THE TRAILING EDGE OF THE COLD AIR MASS LINGERING OVER PORTIONS OF THE WRN GREAT LAKES AND COMBINING WITH CLEAR SKIES AND CALM/LIGHT WINDS TO PRODUCE TEMPERATURES IN THE 20S ONCE AGAIN. AS THE HIGH PRESSURE MOVES EWD ON SUNDAY. A WARMER AIR MASS WILL BEGIN TO ADVECT IN FROM THE SW. THE DRY AIR MASS UNDER THE RIDGE WILL ALLOW SKIES TO REMAIN MOSTLY SUNNY THROUGH THE DAY SUNDAY. TEMPERATURES WILL ALSO BE A BIT COOLER AROUND THE LAKE AND COOK COUNTY AREA. WITH UPPER LEVEL RIDGING ACROSS THE NORTHLAND. A COLD FRONT WILL THEN MOVE INTO NORTHWESTERN MN BY 12Z MONDAY.
458 AM EDT SUN OCT 18 2015 A DEEP UPPER LEVEL TROUGH OVER EASTERN CANADA AND THE NORTHEAST STATES WILL BRING ONE MORE DAY OF WELL-BELOW NORMAL TEMPERATURES TO CENTRAL PA. WIDESPREAD NIGHTTIME SUBFREEZING CONDITIONS ARE EXPECTED TO END THE GROWING SEASON. COINCIDENT WITH THERMAL TROUGH PASSAGE AND STEEPENING LAPSE RATES. HIGH PRESSURE WILL MIGRATE EWD FROM THE LWR OH VALLEY LATER TODAY AND BE CENTERED OVER THE MD/WV PANHANDLE BY 12Z MONDAY. SETTING THE STAGE FOR WIDESPREAD FREEZING/SUBFREEZING CONDITIONS. THAT SAID THERE IS SOME SPREAD IN KEY SYNOPTIC FEATURES OVER THE LOWER 48.
THE MID/UPPER LEVEL TROUGH EXTENDS ACROSS THE NEW ENGLAND AREA. WITH AN UPPER RIDGE OVER THE HIGH PLAINS. AS THE UPPER RIDGE APPROACHES THE MISSISSIPPI VALLEY TONIGHT WHILE FLATTENING. THE LOWER LEVELS ARE DRY. THE 850 MB RIDGE AXIS MOVES ACROSS WISCONSIN TODAY.
WINDS WILL BE A LITTLE STRONGER AND GUSTIER CLOSER TO THE COAST BUT MIN RH VALUES SHOULD BE CLOSER TO 30-45 PERCENT THANKS TO THE SLIGHTLY COOLER AFTERNOON AND LINGERING WEAK CAA. TODAY EXPECTING A FEW STREAKS OF CIRRUS AND HIGHS IN THE LOWER TO MID 80S.
BUT THE GFS/NAM BOTH SUPPORT DEEP ENOUGH MOISTURE ARRIVING WITH THE SE WINDS TO HELP PUSH DEWPS THIS AFTERNOON UP INTO THE LOWER/MIDDLE 30S IN SOUTHERN/WESTERN MN. THE SURFACE COLD FRONT STILL LOOKS TO BE ON OUR WESTERN DOORSTEP AT DAYBREAK MONDAY.
1123 PM MDT SAT OCT 17 2015 EARLY AFTERNOON WV IMAGERY AND RAP ANALYSIS INDICATED LONGWAVE TROUGH ACROSS THE EASTERN US WITH RIDGING ACROSS THE PLAINS AND INTO THE NORTHERN ROCKIES. A CLOSED UPPER LOW IS OFF THE NORTHERN CALIFORNIA COAST. LEE TROUGH WILL SHIFT EAST OVER OUR CWA WITH INCREASING WAA AND UNSEASONABLY WARM TEMPERATURES RETURNING. THE CENTRAL HIGH PLAINS WILL BE UNDER SOUTHWESTERLY TO SOUTHERLY FLOW ALOFT THE ENTIRE LONG PERIOD AHEAD OF A SLOW MOVING TROUGH SET TO MOVE OUT OF THE DESERT SOUTHWEST LATE IN THE WEEK.
1226 PM CDT TUE SEP 15 2015 STRONG SOUTHERLY GRADIENT AND VERY WARM TEMPERATURES AGAIN TODAY AS LOW PRESSURE DEEPENS TO THE WEST AND SHIFTS NORTH OF THE AREA.
356 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL REMAIN ANCHORED ACROSS THE NORTHEAST AND MID-ATLANTIC STATES FOR THE REMAINDER OF THE WORK WEEK. THE HIGH WILL SLOWLY DRIFT OFF THE EAST COAST LATE IN THE WEEK AS A COLD FRONT APPROACHES THE REGION FOR THE WEEKEND. WARMER AIR ALOFT AND WEAK SOUTHERLY FLOW WILL KEEP TEMPERATURES A BIT WARMER THAN LAST NIGHT. A BROAD H5 RIDGE OVER THE EASTERN THIRD OF THE NATION WILL REMAIN IN PLACE THROUGH THIS PERIOD. SPRAWLING HIGH PRESSURE ANCHORED OFF THE EAST COAST WILL EXTEND BACK ACROSS THE LOWER GREAT LAKES. AS A DEAMPLIFICATION IN THE PATTERN OVER WILL LEAD TO A VERY BROAD BASED LONG WAVE TROUGH OVER THE BULK OF NORTH AMERICA.
115 PM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY THROUGH LATE WEEK WITH DRY WEATHER AND WARM LATE SUMMER TEMPERATURES.
231 PM CDT TUE SEP 15 2015 COOLER TEMPERATURES AND MINIMAL CHANCES FOR SIGNIFICANT PRECIPITATION HIGHLIGHT THE SHORT TERM PERIOD. COULD BE A STRAY SHOWER OR TWO BUT IN GENERAL EXPECT A DRY PERIOD BEFORE THE NEXT WAVE LIFTS INTO THE REGION AND COMBINES WITH WEAK FRONTOGENETICAL FORCING BEHIND A COLD FRONT THAT PUSHES THROUGH THE FORECAST AREA THIS AFTERNOON AND THIS EVENING. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE NEAR AND TO NORTH OF THE LOW. THE LOW WILL CONTINUE TO PROPAGATE TO THE NORTHEAST BRINGING CHANCES OF MODERATE TO HEAVY RAINFALL.
HIGHS ARE EXPECTED TO BE JUST A FEW DEGREES COOLER ON WEDNEDAY.
440 PM EDT TUE SEP 15 2015 LIGHT SOUTHERLY FLOW IN THE OHIO VALLEY WILL PERSIST AS HIGH PRESSURE REMAINS EAST OF THE AREA.
231 PM PDT TUE SEP 15 2015 LOW PRESSURE ALONG THE WEST COAST WILL BRING ANOTHER DAY OF COOL TEMPERATURES AND BREEZY WINDS WEDNESDAY. A FEW SHOWERS WILL ALSO OCCUR WITH LIGHT SNOW SHOWERS AT THE HIGHEST ELEVATIONS.
WERE THE RESULT OF A PRESSURE GRADIENT BETWEEN A LARGE HIGH OVER THE MID ATLANTIC AND LOW PRESSURE IN THE CENTRAL AND NORTHERN PLAINS AND ITS RESULTING DEEP SOUTHERLY WARM ADVECTION FLOW. SOUTH WINDS WILL AGAIN BE GUSTY AND PERHAPS A LITTLE STRONGER THAN YESTERDAY AS THE STRENGTHENING LEE TROUGH CAUSES THE 30 TO 40 KT SW WINDS AT ROUGHLY 925 MB ON AREA 88D PROFILERS TO BECOME MORE SOUTHERLY. TONIGHT WILL AGAIN BE CLEAR TO PARTLY CLOUDY WITH SOUTH WINDS FROM AT LEAST 5 TO 10 MPH RESULTING IN MILD LOWS IN THE LOWER TO MID 60S.
700 PM EDT TUE SEP 15 2015 NOT A WHOLE LOT GOING ON WEATHER WISE AS THE RIDGE OF HIGH PRESSURE CENTERED OFF TO OUR EAST REMAINS IN CONTROL.
HIGH PRESSURE CONTINUES TO BE THE MAIN INFLUENCE ON THE WEATHER PATTERN FOR THE NEXT SEVERAL DAYS AS TEMPERATURES GRADUALLY WARM THROUGH THE WEEK. EXPECT OVERNIGHT LOWS TO RECOVER TONIGHT INTO WEDNESDAY MORNING AS LOWS REBOUND INTO THE LOW TO MIDDLE 50S. ALMOST IDENTICAL HIGHS FOR WEDNESDAY IN THE LOW 80S. THU-FRI: CANADIAN HIGH PRESSURE OVER THE MID-ATLANTIC/CAROLINAS WILL CONTINUE TO MODIFY IN THIS PERIOD AS THE UPPER LEVEL RIDGE ALONG THE EASTERN SEABOARD WEAKENS IN RESPONSE TO FURTHER AMPLIFICATION OF A LONGWAVE TROUGH OVER THE WESTERN CONUS. EXPECT DRY CONDITIONS AND NEAR NORMAL NORMAL HIGH TEMPERATURES IN THE LOWER TO MID 80S. EXTENDING NORTHEAST FROM A LOW PRESSURE SYSTEM OFFSHORE THE FL GULF COAST.
130 PM EDT TUE SEP 15 2015 HIGH PRESSURE AND DRY AIR WILL KEEP MOSTLY CLEAR SKIES THROUGH THE TAF PERIOD. TODAY AND TONIGHT A MID LEVEL SHORT WAVE RIDGE AXIS NOW SLIDING ACROSS LAKE HURON WILL ONLY SLOWLY INCH ITS WAY ACROSS THE ERN GREAT LAKES TODAY AND TONIGHT. THE RIDGE WILL CONTINUE AMPLIFYING DURING THE COURSE OF THE SHORT TERM. A PAIR OF SHORT WAVE TROUGHS UPSTREAM /CURRENTLY NEAR GREEN BAY AND ERN MINNESOTA/ WILL BE DEFLECTED WELL NORTH OF THE FORECAST AREA GIVEN THE EXPANDING RIDGE TO THE EAST. THE DEGREE OF WARMING IN THE LOW LEVELS. WILL STILL SUPPORT AFTERNOON HIGHS IN THE LOW 80S OVER MUCH OF THE FORECAST AREA.
624 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL DOMINATE THE WEATHER RIGHT INTO THE UPCOMING WEEKEND.
As was the case yesterday, any mixing to a higher height than indicated in models could bring highs several degrees warmer than forecast, but have settled with a mixing height of around 925 hPa and somewhat discounted the more extreme RAP solution which brings surface temperatures near 90 degrees and surface dewpoints down to the upper 40s.
252 PM CDT TUE SEP 15 2015 LONG WAVE TROUGH EXTENDS ALONG THE WEST COAST INLAND THROUGH THE WESTERN THIRD OF THE COUNTRY. AN UPPER LEVEL RIDGE OF HIGH PRESSURE IS ESTABLISHED ACROSS THE EASTERN THIRD OF THE COUNTRY. AND REALLY WILL MOVE LITTLE THE NEXT 24 HRS AS SOUTHWEST FLOW ALOFT CONTINUES TO RUN PARALLEL ALONG THE TROUGH AXIS. VERY DRY AIR IS LOCATED TO THE WEST OF THE TROUGH ACROSS PORTIONS OF EASTERN COLORADO INTO THE NEBRASKA PANHANDLE.
101 PM EDT TUE SEP 15 2015 A STRENGTHENING UPPER LEVEL RIDGE AND NEARBY AREA OF HIGH PRESSURE WILL ALLOW FOR DRY WEATHER THROUGH THE REMAINDER OF THE WEEK. THE NEXT CHANCE FOR ANY RAIN WILL BE WITH A COLD FRONT SOMETIME OVER THE WEEKEND. WITH LOW TO MID 70S FOR THE HIGH TERRAIN.
245 PM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE OVERHEAD WILL CONTINUE THROUGH THE SHORT TERM PERIOD. WITH A DECENT RIDGE VALLEY SPLIT. HIGHS WILL BE IN THE LOW 80S BY TOMORROW.
HIGH PRESSURE WILL CONTINUE TO CONTROL OUR WEATHER THROUGH THE SHORT TERM YIELDING PLEASANT CONDITIONS. LOWS WILL BE A LITTLE WARMER THAN LAST NIGHT BUT STILL 5 TO 8 DEGREES BELOW NORMAL GIVING IT A FALL-LIKE FEEL.
THE LOW LEVEL REMNANT CIRCULATION OF LINDA HAS FINALLY MOVED ASHORE IN SRN CALIFORNIA. THROUGHOUT SERN ARIZONA TRAPPED BENEATH THE WARMER AIR ALOFT WAS BEING ADVECTED NORTHEAST IN THE STRONG H8-H7 FLOW.
THE LATEST IR SATL WAS SHOWING A LOW PRESSURE SYSTEM NEARING THE PACNW COAST THIS MORNING. MID AND HIGH LEVEL CLOUDS ASSOCIATED WITH THE LOW PRESSURE WAS MOVING ACROSS OUR AREA AND WILL CONTINUE TO DO SO TODAY. A BROAD UPPER LEVEL TROUGH OVER WESTERN CANADA WILL LINGER OVER THE PACIFIC NORTHWEST DURING THIS PERIOD. BRINGING MUCH COOLER WEATHER AND PRECIPITATION CHANCES THROUGH THE SHORT TERM.
THE WESTERN TROUGH WILL BE RE-ENFORCED BY ADDITIONAL HIGH LATITUDE ENERGY DROPPING INTO THE UPSTREAM SIDE WEDNESDAY AND WEDNESDAY NIGHT. THE ENERGY EJECTING OUT OF THE DOWNSTREAM SIDE OF THE TROUGH SPREADS THE STRONGEST LIFT TO OUR NORTH THROUGH THE NEXT 48 HOURS. CONFIDENCE NOT AS HIGH IN THE LOWER VALLEYS BUT CAN NOT BE RULED OUT. A WEAK COLD FRONT WILL BE DRIVEN INTO NORTHWEST COLORADO TOMORROW EVENING AND THIS IS WHERE THE BETTER FOCUS FOR SHOWERS WILL PERSIST INTO THE EARLY MORNING HOURS.
WINDY CONDITIONS WILL PREVAIL ACROSS THE REGION THROUGH LATE THU OR EARLY FRI BEFORE A COLD FRONT ARRIVES SHIFTING WINDS TO THE NORTH.
336 PM EDT TUE SEP 15 2015 HIGH PRESSURE LASTS THROUGH THE WEEK BRINGING WITH IT A PROLONGED PERIOD OF WARM AND DRY WEATHER.
335 PM EDT TUE SEP 15 2015 NOT A WHOLE LOT GOING ON WEATHER WISE AS THE RIDGE OF HIGH PRESSURE CENTERED OFF TO OUR EAST REMAINS IN CONTROL.
LOOK FOR OUR NEXT SHOT OF RAIN ON WEDNESDAY AS A COLD FRONT SLIDES ACROSS THE REGION. COOLER THAN NORMAL TEMPERATURES ARE FORECAST THROUGH MIDWEEK BEFORE A WARMING TREND SETS IN FOR THE LATTER HALF OF THE WEEK. TEMPERATURES WILL REMAIN BELOW AVERAGE GIVEN THE COOLER AIR MASS ALOFT. BY WEDNESDAY MORNING THE AXIS OF A LONGWAVE TROF WILL EXTEND FROM THE PAC NW COAST DOWN TO NORCAL AND THEN CONTINUE TO ADVANCE TO THE SOUTHEAST THROUGH THE DAY. AN ASSOCIATED COLD FRONT WILL PUSH INTO THE NORTH BAY LATE WEDNESDAY MORNING OR EARLY IN THE AFTERNOON WITH MOISTURE SPREADING ACROSS SONOMA COUNTY.
Snow levels will remain fairly low with the highest peaks receiving a few inches of new snow by Wednesday afternoon.
LOOK FOR MOSTLY CLEAR TO PARTLY CLOUDY SKIES WITH HIGHS IN THE LOW/MID 80S.
UPDATE ISSUED AT 927 AM CDT TUE SEP 15 2015 LOW PRESSURE OVER SOUTHEAST MONTANA INTO NORTH CENTRAL SOUTH DAKOTA WITH A WARM FRONT NORTHEAST FROM HERE INTO NORTHERN MINNESOTA. DRAGGING WITH IT A WARM FRONT ACROSS THE REGION. SCATTERED SHOWERS ARE POSSIBLE ALONG THE WARM FRONT THIS MORNING. THIS EVENING WILL SEE THE BEST CHANCE FOR THUNDERSTORMS WHEN UPPER LEVEL SUPPORT ARRIVES VIA A SHORT WAVE TROUGH AND JET STREAK. THE EXTENDED BEGINS WEDNESDAY AND FEATURES A LONGWAVE TROUGH OVER THE WESTERN US WITH A DOWNSTREAM BROAD RIDGE OVER THE GREAT LAKES.
Cooler temperatures will continue through Wednesday then gradual warming into the weekend. This has allowed for continued cloud cover and cooler temperatures across the area.
A DRIER AND MORE STABLE AIR MASS WILL MOVE INTO UTAH BEHIND THE EXITING UPPER LEVEL TROUGH LATE IN THE WEEK. A VERY MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE AHEAD OF THE UPPER TROUGH POSITIONED OVER THE PACIFIC NORTHWEST THIS MORNING.
256 PM CDT TUE SEP 15 2015 AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE MID SOUTH FOR THE REMAINDER OF THIS WEEK.
229 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER FOR THE REST OF THE WEEK. BENIGN CONDITIONS CONTINUE WITH A MAINLY CLEAR SKY AND LIGHT WINDS UNDER A HIGH PRESSURE RIDGE. RIVER VALLEY FOG MAY DEVELOP WEDNESDAY MORNING AND TEMPERATURES WILL REACH A FEW DEGREES WARMER THAN TODAY. RIDGING WILL CONTINUE ACROSS THE MID ATLANTIC AND NORTHEAST CONUS THROUGH THE PERIOD. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
305 PM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE OVERHEAD WILL CONTINUE THROUGH THE SHORT TERM PERIOD. WITH A DECENT RIDGE VALLEY SPLIT. HIGHS WILL BE IN THE LOW 80S BY TOMORROW.
130 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THROUGH LATE WEEK.
There is a potential that the low clouds could reach as far as KABI after 12z. Some low clouds will affect far southeast counties through mid morning, otherwise skies will be mostly sunny today with afternoon highs topping out in the lower to middle 90s. A lee trough will result in south winds of 10 to 20 mph again today, diminishing around sunset.
316 PM EDT TUE SEP 15 2015 SYNOPTIC SCALE PATTERN FEATURING A LONG WAVE TROUGH ACROSS THE WESTERN CONUS AND DOWNSTREAM RIDGE OVER THE EASTERN CONUS. THIS INCREASE IN CLOUD COVER WILL KEEP LOW TEMPS A FEW DEGREES WARMER THAN LAST NIGHT.
245 PM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY THROUGH LATE WEEK WITH DRY WEATHER AND WARM LATE SUMMER TEMPERATURES.
535 PM EDT TUE SEP 15 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK. TEMPS WILL BE SEASONAL WITH HIGHS IN THE LOW TO MID 80S AND OVERNIGHT LOWS IN THE UPPER 50S TO LOWER 60S. HIGH PRESSURE WILL REMAIN THE DOMINATE FEATURE THROUGH THE WEEKEND.
AN UPPER RIDGE STRETCHING WSW FROM AN UPPER HIGH SITUATED OFF THE EAST COAST WILL SPLIT THROUGH WEDNESDAY.
132 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER AND WARMER TEMPERATURES THROUGH THE WORK WEEK.
1226 PM CDT TUE SEP 15 2015 FOR 18Z TAFS /ISSUED 1107 AM CDT TUE SEP 15 2015/ OVERNIGHT LOWS WERE STILL COOL BUT WARMER THAN YESTERDAY RANGING FROM THE MID 40S TO MID 50S. TEMPS ARE ALREADY APPROACHING THE MAX TEMPS FROM YESTERDAY AND LOOKING TO GET INTO THE LOW 80S FOR TODAY. AN AREA OF WEAK LOW PRESSURE IN THE GULF WILL SEND HIGH CLOUDS UP INTO THE TN VALLEY.
609 PM EDT TUE SEP 15 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK. TEMPS WILL BE SEASONAL WITH HIGHS IN THE LOW TO MID 80S AND OVERNIGHT LOWS IN THE UPPER 50S TO LOWER 60S. HIGH PRESSURE WILL REMAIN THE DOMINATE FEATURE THROUGH THE WEEKEND.
THROUGH TONIGHT SOUTHEAST MI WILL REMAIN UNDER THE INFLUENCE OF RIDGING BOTH ALOFT AND AT THE SFC THROUGH THE OVERNIGHT. WITH THE UPPER LEVEL TROUGH JUST UPSTREAM AND THE RIDGE AXIS SLIDING EAST OF THE AREA. THIS WILL FAVOR LOW TEMPS A FEW DEGREES ABOVE GUIDANCE IN THE MID/UPPER 50S WITH A FEW COOL SPOTS DIPPING INTO THE LOW 50S.
WEDNESDAY WILL REMAIN COOLER THAN NORMAL WITH A FEW LINGERING SHOWERS OVER THE MOUNTAINS IN THE MORNING.
145 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL PROVIDE DRY WEATHER AND WARMER TEMPERATURES THROUGH THE WORK WEEK.
THE MODERATING OCEAN EFFECT SHOULD BECOME LESS OF AN INFLUENCE FOR THE INTERIOR WITH LOWS IN THE LOW/MID 70S WEST TO EAST. THE INTERIOR WHERE THE OCEANS MODERATING EFFECT SHOULD NOT BE AS GREAT LOWS IN THE LOW/MID 70S.
625 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BRING DRY AND WARMER WEATHER FOR THE REST OF THE WEEK. BENIGN CONDITIONS CONTINUE WITH A MAINLY CLEAR SKY AND LIGHT WINDS UNDER A HIGH PRESSURE RIDGE. RIVER VALLEY FOG MAY DEVELOP WEDNESDAY MORNING AND TEMPERATURES WILL REACH A FEW DEGREES WARMER THAN TODAY. RIDGING WILL CONTINUE ACROSS THE MID ATLANTIC AND NORTHEAST CONUS THROUGH THE PERIOD. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
SET UP BETWEEN RIDGING EXTENDING FROM THE SERN CONUS INTO THE GREAT LAKES AND A TROUGH ALONG THE WEST COAST. LOW PRESSURE SITS OVER WRN PORTIONS OF ND. WITH A SOUTHWARD EXTENDING TROUGH AXIS RUNNING THROUGH WEST- CENTRAL NEB INTO WRN KS/OK. WITH 3 PM DPTS IN THE LOWER/MID 40S TO LOWER 50S. THE UPPER LEVEL RIDGE AXIS WILL BE MUCH FURTHER EAST ACROSS THE EASTERN COAST.
HIGHS IN THE LOWER/MID 80S WILL PREVAIL. HIGH PRESSURE WILL REMAIN NORTH OF THE REGION.
MAINLY IN THE LOWER LEVELS AND SOUTH OF THE COAST. MAX TEMPS TODAY ARE EXPECTED TO BE SLIGHTLY WARMER THAN YESTERDAY. WITH LOWS TONIGHT EXPECTED TO RANGE FROM THE LOWER 60S OVER NORTHERN INLAND COUNTIES TO THE LOW TO MID 70S AT THE COAST.
339 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL DOMINATE THE WEATHER RIGHT INTO THE UPCOMING WEEKEND.
SFC ANALYSIS SHOWING A SLIGHTLY TIGHTER PRESSURE GRADIENT ACROSS THE LOWER MISS VALLEY AS WELL WHICH IS HELPING TO GENERATE SLIGHTLY STRONGER SOUTHEAST WINDS. ESPECIALLY DOWN SOUTH EVEN WITH THE HIGHER POPS FORECASTED ACROSS THIS REGION.
BNDRY LYR THETA-E ADV STEADILY INCREASES DURING THE AFTN HOURS JUST AHEAD OF A STAGNANT THERMAL BNDRY/DEEP SFC TROF PROGGED TO EXTEND FROM ABOUT THE ERN DAKOTAS TO WRN KS EARLY THIS EVENING. ALL THIS IN PART TO INTENSE WARM FRONT.
250 PM EDT TUE SEP 15 2015 A STRONG RIDGE OF HIGH PRESSURE ANCHORED ALONG THE EAST COAST WILL BRING WARM AND DRY WEATHER THROUGH THE END OF THE WEEK. THIS STRONG RIDGING IS LEADING TO PLENTY OF SUBSIDENCE AND MOSTLY CLEAR SKIES. RIDGE WILL CONTINUE TO MOVE EAST OVER THE NEXT 24 HOURS. WITH THE RIDGE AXIS POSITIONED OVER THE STATE BY TOMORROW AFTERNOON. A STRONG, WARM RIDGE OF HIGH PRESSURE ANCHORED ALONG THE EAST COAST WILL BRING VERY WARM MIDSUMMER LIKE WEATHER THROUGH THE END OF THIS WEEK.
THE UPPER LEVEL TROUGH OVER THE FOLLOWED BY A DRIER AND MORE STABLE AIR MASS BY THE END OF THE WEEK.
213 PM EDT TUE SEP 15 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK. TEMPS WILL BE SEASONAL WITH HIGHS IN THE LOW TO MID 80S AND OVERNIGHT LOWS IN THE UPPER 50S TO LOWER 60S.
SOME MOISTURE CREEP DOES LOOK INEVITABLE THOUGH OVER THE FAR WEST WITH TIME AND WILL MOSTLY BE SEEN IN SLIGHTLY WARMER OVERNIGHT TEMPS WHEN COMPARED TO THE EAST. SLOW RIDGING ALOFT HAS ALREADY BEGUN WORKING ON TEMPS AS THE MID/UPPER 80S SEEN TODAY ARE AROUND TWO DEGREES WARMER THAN YESTERDAY.
325 PM CDT TUE SEP 15 2015 RIDGING ACROSS THE SOUTHEAST CONUS AND A DEVELOPING TROUGH NEAR THE WEST COAST HAS LED TO SOUTHWEST FLOW ALOFT ACROSS THE CENTRAL AND SOUTHERN PLAINS. THE UPPER TROUGH WILL REMAIN DRAPED OVER THE WEST COAST FOR THE NEXT FEW DAYS WHILE HIGH PRESSURE STRENGTHENS OVER TEXAS.
1220 PM CDT TUE SEP 15 2015 CWA is still between a high pressure area across the eastern US and the low pressure area in the northern plains. A long wave upper level high pressure ridge will be centered over the eastern U. and Canada today with a long wave upper level pressure trough over the west coast. A few weak upper level waves embedded in weak WSW flow aloft between the trough/ridge will bring some upper level cloudiness early in the morning, and possibly approaching west central IL late in the afternoon. but otherwise skies should be quite clear today with dry dewpoints in the low to mid 50s.
153 PM PDT TUE SEP 15 2015 A TROUGH ALONG THE WEST COAST WILL CONTINUE TO BRING MOISTURE FROM THE REMNANTS OF FORMER HURRICANE LINDA INTO THE REGION.
This will help keep temps a bit warmer than what we saw this morning, with forecast lows generally in the upper 60s to lower 70s. Southerly winds will increase to 10-15 mph with afternoon highs once again in the low to mid 90s. Upper high pressure continues to dominate the weather picture for West Central Texas with dry weather continuing through the end of the week.
CONCUR WITH DETERMINISTIC SOLNS THAT AN UPPER RIDGE WILL GRADUALLY BUILD OVER THE REGION DRG THE PERIOD. WARMER MAX TEMPS EXPECTED WEDNESDAY CONSISTENT WITH A SLGT INCREASE IN 1000-500MB THICKNESS (GFS DETERMINISTIC.
VFR FLIGHT CONDITIONS EXPECTED AT EACH TERMINAL AS HIGH PRESSURE REMAINS IN CONTROL.
1236 PM CDT TUE SEP 15 2015 VFR with few clouds under the ridge. /issued 358 AM CDT TUE SEP 15 2015/ A broad upper level ridge axis will remain in place from northern Mexico across central Texas leaving west Texas and eastern New Mexico in weak southwesterly flow this week. An upper trough currently moving into the west coast will move east allowing convection to increase in the Davis and Guadalupe Mountains.
333 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL KEEP CONDITIONS ON THE DRY SIDE THROUGH THE REMAINDER OF THE WEEK. TEMPERATURES WILL TREND SLIGHTLY MILDER AS WARMER AIR WORKS ITS WAY NORTH ON THE WESTERN SIDE OF THE HIGH.
SEABREEZE CONVECTION IS COMING ASHORE CURRENTLY IN THE LOWER VALLEY AND COASTAL SECTIONS MOVING WESTWARD TOWARD THE MIDDLE VALLEY WITH CONVECTION DEVELOPING ACROSS THE COASTAL WATERS SLATED TO MOVE INLAND OVER THE NEXT SEVERAL HOURS.
THE WARM FRONT HAS LIFTED THROUGH THE NORTHWESTERN COUNTIES AND IS NEAR THE CANADIAN BORDER. THINK THE WARM FRONT WILL CONTINUE TO LIFT NORTH THROUGH THE LATE AFTERNOON AND THE RAP AND HRRR HAVE CONVECTIVE DEVELOPMENT MOSTLY IN SOUTHERN CANADA. THE MODELS ALL HAVE THE LOW ON DIFFERENT TRACKS.
304 PM EDT TUE SEP 15 2015 A STRONG RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE REMAINDER OF THIS WEEK.
207 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL BUILD INTO THE NORTHEAST THROUGH MUCH OF THE WORK WEEK.
A TROUGH OF LOW PRESSURE CONTINUES TO BRING MOSTLY CLOUDY SKIES AND A CHANCE OF SHOWERS ALONG WITH BELOW NORMAL TEMPERATURES THROUGH WEDNESDAY MORNING. A GRADUAL WARMING TREND WILL BEGIN LATER THIS WEEK RESULTING IN ABOVE NORMAL TEMPERATURES BY THIS WEEKEND AS HIGH PRESSURE BUILDS INTO THE AREA.
WITH HIGH PRESSURE BRINING SUNNY SKIES. AN UPPER RIDGE AXIS STRETCHES FROM JUST WEST OF BERMUDA NW ACROSS THE MID ATLANTIC STATES. WE WILL SEE WARM DAYTIME TEMPS CONTINUE AS AN UPPER HIGH BEGINS TO BUILD OVER TX AND THE RIDGE AXIS BUILDS OUR WAY BY THE END OF THE WEEK. AFOREMENTIONED UPPER RIDGE AXIS WILL BECOME SUPPRESSED TO THE SOUTH OVER THE WEEKEND.
LATEST MODEL DATA SHOWS THE BULK OF THIS ACTIVITY STAYING OVER THE HIGH COUNTRY.
THERE WILL BE LIMITED ELEVATED INSTABILITY AND DRY AIR IN THE LOW LEVELS. HIGH PRESSURE OVER THE EASTERN UNITED STATES AND LOW PRESSURE OVER THE NORTHWEST STATES WILL KEEP SOUTHWEST FLOW OVER THE UPPER MIDWEST. EXPECT BREEZY SOUTH WINDS WITH GUSTS UP TO 25 MPH AGAIN AND HIGHS IN THE LOWER 80S.
A BROAD UPPER LEVEL RIDGE OF HIGH PRESSURE COVERS THE MID SOUTH THIS MORNING AND WILL ALLOW FOR SUNNY SKIES AND SEASONABLE TEMPERATURES IN THE LOWER TO MIDDLE 80S. SOUTHERLY WINDS WILL BRING WARMER TEMPERATURES AND AN INCREASE IN HUMIDITY TO THE AREA.
640 PM EDT TUE SEP 15 2015 A STRONG RIDGE OF HIGH PRESSURE ANCHORED ALONG THE EAST COAST WILL BRING WARM AND DRY WEATHER THROUGH THE END OF THE WEEK. THIS STRONG RIDGING IS LEADING TO PLENTY OF SUBSIDENCE AND MOSTLY CLEAR SKIES. RIDGE WILL CONTINUE TO MOVE EAST OVER THE NEXT 24 HOURS. WITH THE RIDGE AXIS POSITIONED OVER THE STATE BY TOMORROW AFTERNOON. A STRONG, WARM RIDGE OF HIGH PRESSURE ANCHORED ALONG THE EAST COAST WILL BRING VERY WARM MIDSUMMER LIKE WEATHER THROUGH THE END OF THIS WEEK.
128 PM EDT TUE SEP 15 2015 STRONG HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY THROUGH LATE WEEK WITH DRY WEATHER AND WARM LATE SUMMER TEMPERATURES.
200 PM EDT TUE SEP 15 2015 HIGH PRESSURE WILL DOMINATE THE WEATHER RIGHT INTO THE UPCOMING WEEKEND.
311 PM EDT TUE SEP 15 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THE END OF THE WEEK.
WILL ALSO NEED TO DETERMINE WHEN/WHERE THE SNOW CHANGES TO FREEZING DRIZZLE DUE TO THE SATURATED LAYER BECOMING VERY SHALLOW AS IT MOVES EAST WITH THE FRONT. BASED ON SOUNDINGS HAVE INCREASED THE WINDS FOR THIS AFTERNOON BEHIND THE WARM FRONT.
Then expect fog and stratus to form over the region as high pressure builds into the region through the weekend.