Aikyam-Lab/Synoptic-Bench huggingface dataset:
408 AM EDT MON OCT 26 2015 DRY CONDITIONS AND LIGHT EASTERLY WINDS WILL PERSIST TODAY INTO TONIGHT AS A RIDGE OF HIGH PRESSURE SHIFTS EAST THROUGH THE GREAT LAKES REGION.
531 AM CDT MON OCT 26 2015 AS THE UPPER LEVEL LOW MOVES EAST OUT OF TEXAS. /ISSUED 439 AM CDT MON OCT 26 2015/ AN UPPER LEVEL LOW ALONG THE LOWER SABINE RIVER VALLEY OF SOUTHWEST LOUISIANA/SOUTHEAST TEXAS. A PERSISTENT BAND OF MODERATE RAINFALL ON THE BACK SIDE OF THE UPPER LEVEL LOW WILL GRADUALLY DECREASE BY SUNRISE. STRONG ONSHORE FLOW AROUND THE LOW WILL CONTINUE INTO THE VERMILION AND ATCHAFALAYA BASINS. NEXT UPPER LEVEL TROUGH WILL CUT OFF OVER THE SOUTHWEST U. BEFORE THE LOW MOVES FURTHER INLAND. AS THE LOW MOVES FURTHER OFF TO THE NORTHEAST AND LOSES ITS INFLUENCE OVER THE COASTAL WATERS.
422 AM EDT MON OCT 26 2015 HIGH PRESSURE WILL RESULT IN DRY CONDITIONS AND SEASONABLE TEMPERATURES TODAY. STRENGTHENING SOUTHERLY FLOW AHEAD OF AN APPROACHING COLD FRONT WILL PULL ABUNDANT MOISTURE UP INTO THE AREA THROUGH MID WEEK.
636 AM EDT MON OCT 26 2015 HIGH PRESSURE WILL RESULT IN DRY CONDITIONS AND SEASONABLE TEMPERATURES TODAY. STRENGTHENING SOUTHERLY FLOW AHEAD OF AN APPROACHING COLD FRONT WILL PULL ABUNDANT MOISTURE UP INTO THE AREA THROUGH MID WEEK.
LOW PRESSURE TROUGH PUSHING INLAND IS SPINNING EMBEDDED WEATHER SYSTEMS ACROSS AREAS OF MONTANA. A COLD FRONT WILL APPROACH THE CUT BANK AREA BY 06Z TUESDAY. UPPER TROUGH NOW MOVING ONTO THE COAST COMES THROUGH IN SEVERAL PIECES MONDAY AND TUESDAY. LIMITING SNOW ACCUMULATION MAINLY TO THE HIGHEST ELEVATIONS IN SW MT.
322 AM CDT MON OCT 26 2015 BAND OF LIGHT PRECIPITATION ACROSS CENTRAL MINNESOTA INTO NORTHERN WISCONSIN THIS MORNING IS BEING FORCED BY A WEAK SHORT WAVE TROUGH OVER NORTHWEST MINNESOTA AND FROM FRONTOGENESIS ALONG THE WEAK SURFACE BOUNDARY. THE SHORT WAVE TROUGH WILL MOVE PAST THE AREA AFTER SUNRISE WITH THE 26.
A low pressure system is moving onshore and is over Puget Sound in Washington now.
512 AM EDT MON OCT 26 2015 HIGH PRESSURE OVER THE NORTHERN GREAT LAKES WILL BRING FAIR AND DRY WEATHER THROUGH TUESDAY.
1243 AM CDT MON OCT 26 2015 AN ELONGATED AREA OF HIGH PRESSURE COVERED THE FORECAST AREA AT 1930Z. A WEAK SFC TROF WAS IMPINGING ON THE HIGH NEAR THE SOUTHERN EDGE OF THE MN FORECAST AREA. THE SFC TROF IS FORECAST TO LIFT NWD AND EXTEND INTO NW WI BY 06Z MONDAY. THIS TROF ALONG WITH THE FGEN REMAINING OVER THE SOUTHERN TIER OF ZONES WILL GET AN ASSIST FROM THE RIGHT REAR QUADRANT OF UPPER LEVEL JET TO DEVELOP AND EXPAND SHOWERS. THE AREA OF RAIN WILL PERCOLATE OVER NW WI ON MONDAY AND DISSIPATE FROM WEST TO EAST AS DRIER AIR FROM HIGH PRESSURE WORKS ITS WAY IN FROM THE WEST.
TEMPS WERE GENERALLY IN THE LOW TO MID 60S ACROSS THE FORECAST AREA.
1056 PM PDT SUN OCT 25 2015 There will be a good chance of rain tonight into Monday morning as a slow moving low pressure system spreads moisture into the Inland Northwest. High pressure will bring dry and cool weather to the region on Tuesday.
215 AM EDT MON OCT 26 2015 HIGH PRESSURE WILL BRING FAIR WEATHER THROUGH TUESDAY AFTERNOON.
/ISSUED 429 AM CDT MON OCT 26 2015/ UPPER LOW SLOWLY MOVG EAST OVER THE AREA. SW STATES UPPER TROF WILL BEGIN TO PUMP DEEP SW FLOW LATER IN THE WEEK.
1254 AM CDT MON OCT 26 2015 AN AREA OF LOW CLOUDS ON THE BACK SIDE OF THE LOW PRESSURE CENTER WILL CONTINUE TO KEEP CIGS MVFR AT AUS OVERNIGHT. THE LATEST WATER VAPOR SATELLITE LOOP SHOWS A MID AND UPPER LEVEL LOW OVER SOUTH CENTRAL TEXAS THIS AFTERNOON. RADAR DATA CONTINUED TO SHOW AN AREA OF LIGHT RAIN SLOWLY MOVING EAST INTO THE HIGHWAY 77 CORRIDOR. A FEW LIGHT SHOWERS MAY CONTINUE ALONG AND EAST OF THE HIGHWAY 77 CORRIDOR.
BUT OUR RECENT PLEASANT AUTUMN CONDITIONS WILL TURN COOLER AND BLUSTERY.
VISIBLE SATELLITE SHOWS MID/HIGH LEVEL CLOUD COVER INCREASING ACROSS THE CWA FROM WEST TO EAST AS MOISTURE INCREASES IN ADVANCE OF A POTENT UPPER TROUGH TRANSLATING INTO THE WESTERN US ATTM. WHERE WE KEPT THE HIGHEST POPS THROUGH MONDAY AFTERNOON. LEE TROUGHING WILL EVENTUALLY DEVELOP AT THE SURFACE WITH SOUTH-TO-SOUTHEAST FLOW GIVING WAY TO INCREASING LLVL MOISTURE AFTER 18Z. TEMPERATURES ON MONDAY SHOULD BE 10-15 DEGREES F COOLER THAN TODAY GIVEN MORE WIDESPREAD CLOUDS/PRECIPITATION BENEATH THE TROUGH. ON TUESDAY AN UPPER LEVEL TROUGH WILL PUSH SOUTHWARD FROM CANADA INTO MONTANA. GFS ON TUESDAY SHOWS AN INCREASING SURFACE PRESSURE GRADIENT IN THE MORNING WITH THE PASSING OF THE LOW PRESSURE SYSTEM.
COOLER TEMPERATURES AND ISOLATED TO SCATTERED SHOWERS POSSIBLE.
In the meantime, high plains lee troughing will continue today.
ALTHOUGH THE HIGHEST POPS ARE OVER THE WESTERN/CENTRAL PART OF THE STATE WHERE UPSLOPE FLOW WILL ENHANCE UVM AND WORK WITH H3 JET STREAK INDUCED LIFT. THE NEXT WAVE THAT HELPS DIG OUT THE CENTRAL CONUS TROF WILL PASS MAINLY SOUTH OF THE REGION ON TUESDAY. THUS THE LOWER POPS FOR SAID TIME PERIOD. HOWEVER THAT WAVE AND MORE ENERGY COMING SOUTH OUT OF CANADA WILL HELP PRODUCE AN UPPER LOW OVER THE UPPER MISSISSIPPI VALLEY.
358 AM PDT MON OCT 26 2015 DRY WEATHER AND ABOVE NORMAL AFTERNOON TEMPERATURES CAN BE EXPECTED OVER THE DISTRICT THROUGH TUESDAY WHILE A RIDGE OF HIGH PRESSURE BUILDS OVER THE STATE. A STORM SYSTEM OVER THE EASTERN PACIFIC WILL BRING COOLER TEMPERATURES AND A CHANCE OF SHOWERS BY MIDWEEK. OTHERWISE MAINLY CLEAR WITH COOLER TEMPERATURES TRENDS. MODELS INDICATING AN UPPER RIDGE WILL AMPLIFY ALONG COAST AND BUILD INLAND TODAY. THIS WILL RESULT IN SLIGHTLY WARMER DAYTIME TEMPERATURES ACROSS OUR AREA THROUGH TONIGHT. THE RIDGE WILL BEGIN TO BREAK DOWN ON TUESDAY AS A FAIRLY STRONG UPPER TROUGH APPROACHES THE NORCAL COAST. RH PROGS ARE INDICATING THE INCREASED LIKELIHOOD OF MID/HIGH CLOUDS SPREADING INTO OUR AREA WITH WAA AHEAD OF THE TROUGH KEEPING TEMPERATURES WELL ABOVE SEASONAL NORMALS.
357 AM PDT MON OCT 26 2015 High pressure builds over the area through Tuesday with dry and mild weather.
125 AM EDT MON OCT 26 2015 AVIATION HIGH PRESSURE WILL CONTINUE TO PRODUCE FAIR WEATHER THROUGH MONDAY NIGHT INTO TUESDAY. A LOW PRESSURE SYSTEM WILL BRING RAIN AS EARLY AS TUESDAY AFTERNOON.
1012 PM PDT SUN OCT 25 2015 High pressure builds briefly over the area through Tuesday with dry and mild weather.
439 AM CDT MON OCT 26 2015 AN UPPER LEVEL LOW ALONG THE LOWER SABINE RIVER VALLEY OF SOUTHWEST LOUISIANA/SOUTHEAST TEXAS. A PERSISTENT BAND OF MODERATE RAINFALL ON THE BACK SIDE OF THE UPPER LEVEL LOW WILL GRADUALLY DECREASE BY SUNRISE. STRONG ONSHORE FLOW AROUND THE LOW WILL CONTINUE INTO THE VERMILION AND ATCHAFALAYA BASINS. NEXT UPPER LEVEL TROUGH WILL CUT OFF OVER THE SOUTHWEST U. BEFORE THE LOW MOVES FURTHER INLAND. AS THE LOW MOVES FURTHER OFF TO THE NORTHEAST AND LOSES ITS INFLUENCE OVER THE COASTAL WATERS.
BY MID TO LATE MORNING A BROAD AREA OF -SHRA WILL OVERSPREAD THE AREA AS A LOW PRESSURE SYSTEM SHIFTS INTO THE REGION.
134 AM EDT MON OCT 26 2015 HIGH PRESSURE WILL PROVIDE FOR DRY AND SEASONABLE CONDITIONS THROUGH MONDAY NIGHT.
WINDS AND SURF ALONG THE ATLANTIC COAST HAVE RELAXED SOMEWHAT, AND SO THE HIGH RISK OF RIP CURRENTS WAS LOWERED TO MODERATE FOR THE ATLANTIC BEACHES THROUGH MONDAY. /ISSUED 456 PM EDT SUN OCT 25 2015/ IN GENERAL THE HIGH RISK OF RIP CURRENTS ACROSS THE ATLANTIC COAST BEACHES THAT HAS PERSISTED THE LAST SEVERAL DAYS WILL LESSEN TONIGHT INTO THE EARLY PART OF THE WEEK. LOW LEVEL SOUTHERLY FLOW EAST OF THE LOW WILL BRING DEEP TROPICAL MOISTURE ACROSS THE NORTHEASTERN GULF AND THE FLORIDA PANHANDLE MONDAY AND TUESDAY WHILE SOUTH FLORIDA IS FORECAST TO HAVE JUST A MODEST INCREASE IN MOISTURE DURING THIS PERIOD. THE FORECAST REGIONAL MID-LEVEL TEMPERATURES ARE WARMER THAN SEASONAL NORMALS AND THE LACK OF DYNAMICS MONDAY AND TUESDAY ARE NOT GENERALLY SUPPORTIVE FOR CONVECTION WITH MAINLY ISOLATED SHOWER ACTIVITY FORECAST MONDAY AND TUESDAY.
318 AM CDT MON OCT 26 2015 High pressure anchored over the Great Lakes will continue to control the weather across central Illinois today, providing mostly sunny and dry conditions.
429 AM CDT MON OCT 26 2015 UPPER LOW SLOWLY MOVG EAST OVER THE AREA. SW STATES UPPER TROF WILL BEGIN TO PUMP DEEP SW FLOW LATER IN THE WEEK.
HIGH PRESSURE AT THE SURFACE AND RIDGING ALOFT ARE IN PLACE ACROSS THE AREA. A LOW PRESSURE SYSTEM OVER THE NORTHERN GULF COAST WILL SLOWLY MOVE EAST TODAY THROUGH LA/MS AS THE RIDGE IN PLACE SHIFTS SOUTH. THE LOW PRESSURE SYSTEM WEAKENS AS THE UPPER TROUGH LIFTS OUT TONIGHT. MOISTURE AHEAD OF THE LOW WILL MOVE IN ACROSS THE AREA OVERNIGHT AND ALLOW FOR SOME ISOLATED TO SCATTERED SHOWERS MAINLY NORTH AND OVER THE COASTAL WATERS. WINDS WILL BECOME MORE SE/S AS THE LOW MOVES CLOSER AND HIGH PRESSURE CONTINUES TO SHIFT SOUTH. SCATTERED SHOWERS AND A FEW EMBEDDED THUNDERSTORMS WILL BE POSSIBLE AHEAD OF THE FRONT FOR TUESDAY WITH THE HIGHEST CHANCES ACROSS THE NORTH.
433 AM EDT MON OCT 26 2015 HIGH PRESSURE OVER THE NORTHERN GREAT LAKES WILL BRING FAIR AND DRY WEATHER THROUGH TUESDAY.
406 AM CDT MON OCT 26 2015 LONGWAVE TROF IS SLOWLY PUSHING ACROSS THE NORTHERN ROCKIES THIS AM. THE WAVE WILL GRADUALLY PIVOT NORTH BUT AS WE REMAIN UNDER THE BROAD UPPER TROF WILL MAINTAIN LOW POPS/SHOWERS.
309 AM EDT MON OCT 26 2015 AN AREA OF LOW PRESSURE ALONG THE NORTHERN GULF COAST CONTINUES TO SLOWLY TRACK NORTHWARD TOWARD THE TENNESSEE VALLEY. AND AGAIN OVERNIGHT AS THE AFOREMENTIONED LOW PRESSURE AMPLIFIES AND SWINGS NORTHEAST INTO THE REGION. MOST LOCATIONS WILL STRUGGLE TO CLIMB NORTH OF THE LOW TO MID 60S. TROUGH OVER THE GULF COAST STATES WILL LIFT NORTH AS A NORTHERN STREAM LONG-WAVE TROUGH DEEPENS ACROSS THE MID-WEST/WESTERN GREAT LAKES BY MID-WEEK. THE PHASING OF THESE TWO SYSTEMS WILL GREATLY AMPLIFY THE UPPER TROUGH. MODELS SHOW A 850MB JET OF 50-60KTS+ WITH FAVORABLE INVERSION/ DUCTING FUNCTION TO PRODUCE STRONG MOUNTAIN WAVE WINDS ACROSS THE HIGHER ELEVATIONS AND ADJACENT FOOTHILLS FOR ESPECIALLY TUESDAY AFTERNOON AND NIGHT.
BUT CLOUDS STREAMING INTO THE PANHANDLES HAVE KEPT TEMPERATURES STEADY IN THE LOW 40S SO FAR IN MOST AREAS DESPITE THE RELATIVELY LIGHT WINDS. A WEAK COLD FRONT WILL APPROACH THE OKLAHOMA PANHANDLE TONIGHT AND BRING WITH IT A SLIGHT CHANCE FOR SHOWERS. A FAIRLY SIGNIFICANT AREA OF DRY AIR IN THE LOW AND MID LEVELS MAY BE ENOUGH TO PREVENT ANYTHING FROM MAKING IT TO THE GROUND.
ALTHOUGH READINGS WILL BE A LITTLE COOLER NORTH OF THE BOUNDARY OVER SE GA.
MVFR CEILINGS SHOULD BE THE LOWEST CONDITION. ALTHOUGH HEDGED A BIT AT TCL CLOSER TO THE LOW.
DRYING HAS WRAPPED AROUND UPPER LOW WITH MOST OF WESTERN HALF OF AREA RAINFREE AT THIS TIME. WITH UPPER LOW FORECAST TO MOVE ONLY VERY SLOWLY FOR THE NEXT FEW HOURS.
403 AM EDT MON OCT 26 2015 HIGH PRESSURE EXTENDING OVER THE AREA TODAY WILL MOVE EAST TO NEW ENGLAND TONIGHT AND EARLY TUESDAY.
316 AM PDT MON OCT 26 2015 SLIGHTLY WARMER TODAY UNDER WEAK HIGH PRESSURE WITH PATCHY EARLY MORNING LOW CLOUDS AND FOG NEAR THE COAST.
655 AM EDT MON OCT 26 2015 HIGH PRESSURE WILL BRING FAIR WEATHER THROUGH TUESDAY AFTERNOON.
RIDGE ALOFT WILL SHIFT WESTWARD BUT STILL REMAIN EXTENDED OVER THE SOUTHERN CONUS.
An upper level ridge centered over the Gulf Coast states will shift westward and expand this weekend. Temperatures will be a degree or two hotter on Sunday with most areas in the lower 90s. Dewpoints will remain rather high in the lower to middle 70s at times over the next several days because of all the moisture and water on the ground.
5 INCHES AND UPPER RIDGE SHIFTS MORE INTO NORTH TEXAS. BUT FOR SUNDAY AM EXPECTING A DEGREE OR TWO WARMER (THE LATTER OUT WEST) WITH WARMER BOUNDARY LAYER.
MODELS SHOW DIVERGENCE IN THE LOW LEVEL WIND FIELD. TODAYS TEMPERATURES WILL BE A COUPLE DEGREES COOLER THAN YESTERDAYS SINCE MORE CLOUDS ARE EXPECTED. A MOIST BOUNDARY LAYER WILL BE IN PLACE SUNDAY AND THE MID LEVEL LAPSE RATES ONLY STEEPEN LATE IN THE DAY IN RESPONSE TO AN APPROACHING TROUGH FROM THE WEST. MUCH OF THE FORECAST AREA WILL APPROACH 100 FOR A HEAT INDEX GIVEN THE HIGHER SURFACE DEWPOINTS. THE LARGE-SCALE RIDGE SHOULD BUILD BACK OVER THE REGION MON-TUE BEFORE FLATTENING OUT WITH ZONAL FLOW OVER THE UPPER MISS. THERE WILL LIKELY BE SEVERAL SHORT WAVE TROUGHS TO BE EMBEDDED IN THE FLOW TO GO ALONG WITH A FAIRLY MOIST AIR MASS AND INSTABILITY.
THIS IN RESPONSE TO A LARGE UPPER LOW MOVING ACROSS THE WEST. TEMPERATURES WERE MUCH COOLER TODAY HOWEVER THICK CLOUD COVER TONIGHT WILL LIKELY RESULT IN LOWS IN THE 50S AND 60S. FOR THE WEEKEND AN UPPER LEVEL TROUGH WILL MOVE INTO THE PACIFIC NORTHWEST. TEMPERATURES WILL BE COOLER WITH HIGHS IN THE 80S.
638 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL KEEP FAIR WEATHER AND SEASONABLE TEMPERATURES OVER NY AND PA INTO SUNDAY.
WITH SOUTHWEST MID TROPOSPHERIC FLOW CONTINUING ACROSS THE COLORADO ROCKIES, WE WILL SEE A PERSISTENCE OF THE LEESIDE TROUGH IN THE LOWER TROPOSPHERE, LEADING TO CONTINUED STRONG DIURNAL WINDS, PARTICULARLY IN THE 18-00Z TIME FRAME. DEWPOINTS WILL DECREASE, ESPECIALLY OUT WEST, DOWN INTO THE LOWER TO MID 50S ALONG/WEST OF HIGHWAY 83. A WEAK SURFACE CIRCULATION ALONG THE LEE TROUGH WILL BE UP ACROSS FAR NORTHWEST KANSAS. HOT AND DRIER CONDITIONS WILL PERSIST THROUGH THE REMAINDER OF THE WEEKEND AS THE UPPER LEVEL RIDGE AXIS REMAINS CENTERED ACROSS WEST TEXAS AND THE TEXAS PANHANDLE.
A MID LEVEL AREA OF HIGH PRESSURE CENTERED OVER TEXAS WILL RETREAT WESTWARD AND REDUCE ITS INFLUENCE OVER THE STATE OF FLORIDA OVER THE NEXT 24 HOURS AS A 500 MB SHORT WAVE TROUGH AMPLIFIES OVER THE EASTERN UNITED STATES. A TROUGH OF LOW PRESSURE WILL DEVELOP ALONG THE CAROLINA COAST. FAVORED A WARMER BLEND OF TEMPERATURES FOR TODAY. AS THE CAROLINA COASTAL TROUGH FORMS EARLY ON SUNDAY.
352 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL KEEP FAIR WEATHER AND SEASONABLE TEMPERATURES OVER NY AND PA INTO SUNDAY.
FAIRLY FAST SWLY FLOW ALOFT CONTINUED OVER SE ARIZONA EARLY THIS MORNING IN RESPONSE TO A TROUGH ADJACENT THE WEST COAST AND HIGH PRESSURE CENTERED OVER NORTHEAST TEXAS. THE UPPER TROUGH IS PROGGED TO REMAIN QUASI-STATIONARY NEAR THE WEST COAST THRU WED. AND HIGH PRESSURE ALOFT WILL CONTINUE TO BE CENTERED OVER TEXAS.
A SHORT WAVE TROUGH IS EXITING OFF TO OUR NORTHEAST. AS SHORT WAVE RIDGING ENSUES ACROSS THE OHIO AND TENNESSEE VALLEYS. HIGHS WILL TOP OUT IN THE LOW 80S FOR MOST. THE SHORT-LIVED RIDGE AXIS WILL MOVE OFF TO THE EAST TONIGHT. WITH ANOTHER SHORT WAVE TROUGH APPROACHING THE OHIO VALLEY/GREAT LAKES REGION. AS FORCING IS MAXIMIZED BETWEEN BUILDING INSTABILITY AND THE INFLUENCE OF THE PASSING SHORT WAVE TROUGH. THE HIGHER RESOULITION MODELS ARE HITTING CENTRAL KENTUCKY HARDER WITH COLD POOL DEVELOPMENT AND A TENDENCY FOR ORGANIZED CONVECTION TO MOVE SOUTH TOWARDS THE BETTER INSTABILITY. FEATURE A LARGE UPPER TROUGH ACROSS THE EASTERN THIRD OF THE CONUS. WITH A LARGE SURFACE AND UPPER RIDGE SITUATED OVER THE CENTRAL AND SOUTHERN PLAINS.
ANY THAT DO FORM WILL BE MORE TIED TO THE HIGHER TERRAIN. THE PATTERN REMAINS DOMINATED BY GENERAL TROUGHINESS ALONG THE WEST COAST. AND HIGH PRESSURE OVER TEXAS. MAINLY TIED TO THE HIGHER TERRAIN.
SLOWLY EVOLVING PATTERN OVER THE PACIFIC NORTHWEST WITH A BROAD UPPER TROUGH PROVIDING COOLER THAN NORMAL TEMPERATURES AND MOIST UNSTABLE AIR.
617 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL MOVE EAST ACROSS THE LOCAL AREA TODAY AND TONIGHT.
319 AM EDT SAT JUL 11 2015 THE UPPER RIDGE WILL GRADUALLY SHIFT TO THE WEST OF THE REGION TODAY. WITH MODELS SHOWING THIS LOWER POP TREND AS WELL. TEMPERATURES SHOULD BE 2-3 DEGREES COOLER WITH THE LOWER THICKNESS VALUES. SOME NORTHWEST FLOW ACTIVITY IS POSSIBLE ALONG THE EDGE OF THE RIDGE. HIGH PRESSURE THAT HAS KEPT US RELATIVELY DRY WILL SHIFT TO OUR WEST AND ALLOW A TROUGH TO SET UP OVER THE EASTERN U.
A MID LATITUDE TROUGH IS CROSSING THE EASTERN SEABOARD TONIGHT. THESE TWO FEATURES WILL WEAKEN THE ATLANTIC AREA OF HIGH PRESSURE THAT HAS BEEN THE FORCE BEHIND OUR UNSEASONABLE FRESH WINDS FOR THE PAST WEEK. THIS WEAKENING OF THE RIDGE WILL GRADUALLY DECREASE WINDS THROUGH SATURDAY NIGHT.
AN UPPER LEVEL RIDGE WILL BRING DRIER CONDITIONS TO THE AREA SATURDAY NIGHT INTO EARLY SUNDAY.
134 AM EDT SAT JUL 11 2015 THE MAJORITY OF THE WEEKEND WILL BE DRY UNDER HIGH PRESSURE. UPPER LEVEL RIDGE DRIFTS EASTWARD TODAY. THE ONLY WRENCH IN THE FORECAST WILL BE OVER THE SOUTHEASTERN RIDGES.
THIS IS ALL THANKS TO A HIGH PRESSURE SYSTEM, EXPANDING FROM THE MIDWEST TOWARDS THE EAST COAST.
UNDER A RIDGE OF HIGH PRESSURE. RIDGE OF HIGH PRESSURE WILL BEGIN TO BUILD OVER FORECAST AREA THROUGH REMAINDER OF WEEKEND.
MONSOON MOISTURE AND THE POSSIBILITY OF THUNDERSTORMS WILL GRADUALLY RETURN TO THE AREA AS HIGH PRESSURE REBUILDS OVER THE SOUTHWEST STATES. IN THE UPPER LEVELS, NORTHERN ARIZONA IS CURRENTLY POSITIONED BETWEEN A WEST COAST TROUGH AND SUBTROPICAL HIGH PRESSURE CENTERED OVER LOUISIANA. THE WEST COAST TROUGH IS FORECAST TO WEAKEN, ALLOWING SUBTROPICAL HIGH PRESSURE TO CREEP WESTWARD AND SET UP OVER TEXAS.
/ISSUED 402 PM EDT FRI JUL 10 2015/ MID/UPPER LEVEL RIDGE WAS CENTERED ACROSS THE FLORIDA PANHANDLE THIS AFTERNOON. A UPPER LEVEL TROUGH/TUTT LOW WERE ACROSS THE SOUTHEAST BAHAMAS. AN AREA OF LOW PRESSURE IS FORECAST TO DEVELOP OFF THE NORTH CAROLINA COASTLINE THIS WEEKEND AND THEN TRACK NORTHEAST OVER THE ATLANTIC WATERS.
MODELS ARE SHOWING A TROUGH AXIS ACROSS THE WESTERN UNITED STATES. AND TEMPERATURES WILL DROP INTO THE LOW 40S TO MID 50S. WITH INCREASED SURFACE HEATING AND AN UPPER LEVEL TROUGH WEST OF THE REGION. HIGHS WILL JUMP A FEW DEGREES TO THE LOW TO UPPER 80S.
A LOW PROBABILITY OF IFR OR MVFR CIGS ONE OR TWO HOURS BEFORE OR AFTER SUNRISE WILL LEAD TO ONLY A BRIEF PERIOD OF THE LOWER CONDITIONS AT KMFE AND POSSIBLY KHRL. INCREASING SUBSIDENCE AND DRYING OUT OF THE LOW LAYERS WITH DEEP LAYER MIXING TO BREAK UP THE CUMULUS FIELD WITH FEW-SCT VFR CONDITOINS MID TO LATE AFTERNOON. BROAD HIGH PRESSURE WILL CONTINUE TO COVER AND DOMINATE THE CWA AND VICINITY FOR THE NEXT 24 HOURS TO 36 HOURS. HIGH PRESSURE WILL SPREAD OVER THE AREA WITH A WEAKER GRADIENT. LATEST WATER VAPOR IMAGERY AND 500 BM HEIGHT SHOWS BROAD RIDGE IN CONTROL OF THE SOUTHEAST PLAINS AND WESTERN GULF OF MEXICO. THE REST OF THE AFTERNOON INTO TONIGHT THE RIDGE GRADUALLY RETROGRADES WESTWARD WITH ITS CENTERED OVER CENTRAL TX BY SATURDAY AFTERNOON.
HIGH PRESSURE WILL STAY OVER INDIANA INTO TONIGHT. AFTER THAT LOW PRESSURE WILL DEVELOP OVER THE PLAINS AND SLOWLY HEAD EAST. EVENTUALLY THE LOW PRESSURE SHOULD BECOME ASSOCIATED WITH A COLD FRONT.
UPPER LOW HAS NOW MOVED OVER NWRN NV. AND ON THE BACKSIDE OF THE LOW. MEAN TROUGH STAYS IN PLACE AND MORE ENERGY DROPS ALONG THE N COAST. JHM SHORT WAVE ENERGY MOVES OFF AND WEAKENS BUT THE UPPER TROUGH LINGERS IN THE AREA FOR ANOTHER COOLER THAN NORMAL DAY ON SUNDAY.
330 AM MDT SAT JUL 11 2015 UPPER RIDGE CENTER OVER EAST TEXAS THIS MORNING WITH UPPER TROUGH OVER THE PACIFIC NORTHWEST.
323 AM CDT SAT JUL 11 2015 06Z SFC DATA HAS AN INFERRED FRONTAL BOUNDARY FROM NORTHERN KANSAS INTO WESTERN KENTUCKY WITH HIGH PRESSURE OVER THE OHIO VALLEY.
636 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL BE IN CONTROL OF OUR WEATHER THROUGH THE WEEKEND. A RIDGE OF HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS OUR REGION DURING THE WEEKEND WITH TEMPERATURES WARMER EACH DAY. THE RIDGE OF HIGH PRESSURE WILL MOVE OFF THE COAST ON SUNDAY NIGHT WITH DRY WEATHER CONTINUING.
644 AM EDT SAT JUL 11 2015 AN UPPER RIDGE OVER THE REGION WILL RETROGRADE WESTWARD DURING THE WEEKEND. THE INCREASED MOISTURE WILL LIKELY RESULT IN MORE CLOUD COVER AND COOLER TEMPERATURES AS HIGHS ARE EXPECTED TO BE IN THE MID 90S.
THIS HIGHER MOISTURE SHOULD CONTINUE TO MOVE INLAND TODAY AND SUPPORT AT LEAST SOME ISO TO WIDELY SCT SHOWER AND THUNDERSTORM ACTIVITY. UPPER LEVEL ANALYSIS AT 500MB SHOWS 594/595 DM RIDGE OVER MUCH OF THE NORTHERN GULF INCLUDING SE TX. UPPER LEVEL RIDGE WILL EXPAND AND MOVE OVER MUCH OF TX AND S PLAINS BY SUNDAY. THE RIDGE WILL REMAIN QUASI-STATIONARY OVER THE S PLAINS AND TX FOR MUCH OF THE COMING WEEK. THE RIDGE MAY WEAKEN SLIGHTLY FOR THE END OF THE COMING WEEK.
152 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL BUILD INTO THE AREA TONIGHT AND SATURDAY.
610 AM EDT SAT JUL 11 2015 DRY CONDITIONS ARE EXPECTED TODAY AS HIGH PRESSURE BUILDS ACROSS THE MID OHIO VALLEY.
126 AM EDT SAT JUL 11 2015 THE MAJORITY OF THE WEEKEND WILL BE DRY UNDER HIGH PRESSURE. UPPER LEVEL RIDGE DRIFTS EASTWARD TODAY. THE ONLY WRENCH IN THE FORECAST WILL BE OVER THE SOUTHEASTERN RIDGES.
124 AM EDT SAT JUL 11 2015 WEAK HIGH PRESSURE WILL BUILD IN AND REMAIN NEARBY THROUGH THE WEEKEND.
The upper level ridge begins to slide its way westward across the region after tonight and through the weekend. Higher temperatures and lower rain chances will accompany this ridge with temperatures climbing into the upper 90s and some spots along the Rio Grande and Upper Trans Pecos surpassing 100 degrees by Sunday. There may be some lingering rain chances on Saturday along the higher terrain of southeast New Mexico, but will keep chances on the low end, as they will be isolated as support for activity will slide off to the west. By Sunday, the ridge will be centered over the Southern Plains with temperatures remaining in the mid to upper 90s and low 100s. Decent moisture in the low levels will likely stick around, which may make it feel a bit muggy outside.
316 AM EDT SAT JUL 11 2015 AN UPPER RIDGE OVER THE REGION WILL RETROGRADE WESTWARD DURING THE WEEKEND. THE INCREASED MOISTURE WILL LIKELY RESULT IN MORE CLOUD COVER AND COOLER TEMPERATURES AS HIGHS ARE EXPECTED TO BE IN THE MID 90S.
144 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL BE OVERHEAD TONIGHT AND SATURDAY.
AN UPPER LEVEL TROUGH TRAVERSING THE SOUTHERN MID- ATLANTIC STATES TODAY WILL HELP TO USHER IN A COLD FRONT INTO THE AREA FROM THE NORTH THIS EVENING AND TONIGHT. HEIGHTS ALOFT WILL BEGIN TO FALL TODAY IN RESPONSE TO THE UPPER ANTICYCLONE RETROGRADING WESTWARD OVER THE CENTRAL US. A WAVE OF LOW PRESSURE IS EXPECTED TO DEVELOP ALONG THE LEADING EDGE OF THE FRONT AS IT MOVES SOUTH INTO THE AREA. SLIGHTLY COOLER TEMPERATURES. WEAK SURFACE RIDGING WITH A RESERVOIR OF LOW- LEVEL DRY/LOWER THETA-E AIR WILL BE IN PLACE ACROSS CENTRAL NC ON SUNDAY. ON THE NORTHEASTERN FLANKS OF THE STRONG MID-LEVEL ANTICYCLONE CENTERED ACROSS THE SOUTHERN PLAINS. THUNDER MAY BE HARD TO COME BY AS INSTABILITY IS LIMITED OWING TO THE LOW-LEVEL DRY AIR IN PLACE AND WARM TEMPERATURES ALOFT.
355 AM CDT SAT JUL 11 2015 LARGE DOME OF HIGH PRESSURE CENTERED OVER LOUISIANA WILL DOMINATE THE WEATHER PATTERN. A QUICK SURFACE ANALYSIS SHOWS THE HIGHEST PRESSURES OF NEAR 1020MB ARND THE ATCHAFALAYA BASIN. THE RESULT WILL BE THE CONTINUATION OF TEMPERATURES IN THE LOW TO MID 90S WITH HEAT INDICES AT 102-107 TODAY AND 103-109 SUNDAY. THE HIGHEST HEAT INDEX FROM CALCULATIONS APPEAR TO BE ALONG THE MISSISSIPPI GULF COAST IN PARTICULAR A 110 DEGREE VALUE IN JACKSON COUNTY. WILL KEEP A CLOSE EYE ON THESE VALUES WHILE THE HIGH IS PARKED OVER OUR AREA IN CASE WE EXCEED HEAT ADVISORY CRITERIA. /KEG/ ECMWF HAS THE HIGH CENTER MOVING WEST INTO TEXAS WITH THE ELONGATED ISOBARS STILL IMPACTING OUR FORECAST AREA WITH HIGH PRESSURE. HIGH PRESSURE WILL CONTINUE TO DOMINATE THE REGION.
405 AM EDT SAT JUL 11 2015 DRY CONDITIONS ARE EXPECTED TODAY AS HIGH PRESSURE BUILDS ACROSS THE MID OHIO VALLEY.
The upper ridge has retrograded to a position over northern LA this morning. A lee trough is expected to develop southwestward from the Carolinas to eastern portions of the forecast area during the day. This region will also be farthest away from the upper ridge.
A LOW PRESSURE SYSTEM OFFSHORE WILL SLOWLY MOVE EAST THROUGH THIS WEEKEND.
423 AM EDT SAT JUL 11 2015 HIGH PRESSURE WILL PREVAIL ACROSS THE REGION THIS WEEKEND.
OTHERWISE HIGH PRESSURE WILL KEEP VFR CONDITIONS THRU THE FCST PERIOD.
317 AM PDT SAT JUL 11 2015 THE TROUGH OF LOW PRESSURE NEAR THE CALIFORNIA COAST WILL SLOWLY WEAKEN THROUGH SUNDAY ALLOWING FOR SLOW INLAND WARMING AND A GRADUALLY SHALLOWER MARINE LAYER WITH NIGHT AND MORNING COASTAL LOW CLOUDS AND FOG NOT EXTENDING AS FAR INLAND. HIGH PRESSURE TO THE EAST MAY EXPAND SLIGHTLY WESTWARD BRINGING SLOW INLAND WARMING AND A SHALLOWER MARINE LAYER. WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO THE TROUGH OF LOW PRESSURE NEAR THE CALIFORNIA COAST WILL CONTINUE TO WEAKEN THROUGH SUNDAY. HIGH PRESSURE TO THE EAST MAY EXPAND SLIGHTLY WESTWARD. WITH THE WEAKENING OF THE TROUGH OF LOW PRESSURE NEAR THE CALIFORNIA COAST THROUGH SUNDAY.