Aikyam-Lab/Synoptic-Bench huggingface dataset:
HIGH PRESSURE PREVAILS ACROSS THE MIDSOUTH. TEMPS RANGE FROM THE LOWER 60S WHERE FOG/LOW CLOUDS OCCURRED THIS MORNING TO THE UPPER 60S ELSEWHERE. HIGH PRESSURE WILL RETREAT EASTWARD TONIGHT. THE POTENT UPPER LEVEL TROUGH CURRENTLY MOVING THROUGH THE ROCKIES WILL TRACK INTO THE PLAINS WEDNESDAY AND INTO THE MID/UPPER MISSISSIPPI VALLEY BY WEDNESDAY EVENING. THE ASSOCIATED COLD FRONT WILL TRACK ACROSS THE SOUTHERN PLAINS WEDNESDAY.
BPT HAS MANAGED TO EVADE THE LOWER LOWER CEILINGS WITH JUST SOME BRIEF MVFR STRATOCU EDGING INTO THE TERMINAL FROM THE GULF WATERS. /ISSUED 350 AM CST TUE NOV 10 2015/ A BIT WARMER THIS MORNING THAN YESTERDAY AS CLOUDS HAVE HELP TO HOLD OVERNIGHT TEMPERATURES UP A BIT. WINDS SWINGING AROUND TO THE SOUTHEAST LATE IN THE DAY AS HIGH PRESSURE EXITS OFF TO THE EAST. A TRAILING COLD FRONT WILL EXTEND FROM THE LOW DOWN INTO THE TRANS-PECOS REGION OF TEXAS.
1034 AM MST TUE NOV 10 2015 WATER VAPOR LOOP SHOWED THE POTENT UPPER LOW TRACKING SOUTHEAST ACROSS WESTERN NV AT MID MORNING. THE LOW WILL THEN MOVE EAST ACROSS THE FOUR CORNERS THIS AFTERNOON AND INTO SOUTHERN CO THIS EVENING.
A COLD FRONT ASSOCIATED WITH THE LOW WILL CROSS SE TX TOMORROW AFTN AND TOMORROW NIGHT.
LOOKING FOR THE PERSISTENT CLOUDINESS THAT HAS BEEN PRESENT TO PULL OUT OF CENTRAL ALABAMA (IN THE WAKE OF THE UPPER TROUGH MOVING OUT) BY AROUND MIDDAY TODAY. SURFACE RIDGING WILL REMAIN IN PLACE TODAY AND TONIGHT FOR A MUCH WELCOME BREAK FROM THE DREARY WEATHER OF LATE BEFORE OUR NEXT FRONTAL SYSTEM APPROACHES THE AREA LATE WEDNESDAY. LOOK FOR BETTER DIURNAL COOLING TONIGHT WITH MOSTLY CLEAR SKIES UNDER THE RIDGE ALONG WITH LIGHT WINDS.
UPPER LEVEL LOW OVER SOUTH CENTRAL MONTANA WILL CONTINUE TO SLOWLY MOVE EAST THROUGH THIS AFTERNOON.
339 PM EST TUE NOV 10 2015 LOW PRESSURE PASSING ACROSS THE MID ATLANTIC STATES WILL BRING RAIN TO MOST OF THE AREA THIS EVENING. SOME CLEARING OCCURRING DURING THE DAY ON WEDNESDAY AS A WEAK RIDGE OF HIGH PRESSURE MOVES OVER THE AREA. THEN CLOUDS WILL INCREASE AGAIN WEDNESDAY NIGHT AS LOW PRESSURE APPROACHES FROM THE WEST.
At 13Z, the surface cold front was analyzed to stretch from Charleston, SC southwestward to Keaton Beach, FL and then westward out over the northern Gulf waters. Behind the front, high pressure will build in eastward with zonal flow aloft. Winds will be light and from the north-northwest today and weaken overnight as high pressure sinks in over the southeast.
1019 AM EST WED MAR 2 2016 STRONG NORTHWEST FLOW BEHIND THE COLD FRONT WILL CONTINUE THROUGH THE DAY. LIGHT LAKE EFFECT SNOW SHOWERS WILL CONTINUE THROUGH THE EARLY THURSDAY BEFORE THE DRIER AIR AND HIGH PRESSURE MOVES INTO THE REGION.
WITH THUNDERSTORM ACTIVITY ALONG THE BASE OF THIS TROUGH HIGHLIGHTED BY LIGHTING NEAR CENTRAL IDAHO. A COLD FRONT WILL MOVE THROUGH THE REGION TONIGHT.
SMALLER IMPULSES WILL CONTINUE TO ENTER THE LONGWAVE RIDGE IN THE UPPER LEVELS. BUT THE CLOUDS ON THU NIGHT WILL KEEP MANY TEMPERATURES AT PLAIN ELEVATIONS ABOVE FREEZING FROM BLACKFOOT WESTWARD. SO HAVE CANCELED THE WIND ADVISORY FOR THE LOWER SNAKE RIVER PLAIN.
734 AM EST WED MAR 2 2016 A CROSSING UPPER TROUGH WILL MAINTAIN COLD TEMPERATURES AND SCATTERED SNOW SHOWERS TODAY. MORE WIDESPREAD SNOW IS EXPECTED WITH LATE THURSDAY LOW PRESSURE. ONLY COSMETIC ADJUSTMENTS WERE NEEDED FOR THE DAWN UPDATE AS SCATTERED SNOW SHOWERS CONT UNDER THE CROSSING UPR TROUGH. WEAK LOW PRESSURE WILL APPROACH FROM THE WEST THURSDAY MORNING. MID-LEVEL MOISTURE WILL GRADUALLY INCREASE ALONG A WARM FRONT. ISENTROPIC LIFT ACROSS THE WARM FRONT WILL SERVE AS THE FOCUS FOR INCREASING POPS. BEST CHANCE FOR ACCUMULATION WOULD BE IN THE RIDGES AND NORTH OF I-70.
Winds will increase out of the south today as high pressure slides to our east. Highs should therefore make the lower 60s. In contrast, areas of the eastern Ozarks should see highs in the lower 50s due to more in the way of cloud cover and weaker warm air advection. A cold front associated with that short wave trough will then move southeast through the area Thursday morning.
959 AM EST WED MAR 2 2016 A CROSSING UPPER TROUGH WILL MAINTAIN COLD TEMPERATURES AND SCATTERED SNOW SHOWERS TODAY. MORE WIDESPREAD SNOW IS EXPECTED WITH LATE THURSDAY LOW PRESSURE. SCATTERED SNOW SHOWERS CONT UNDER THE CROSSING UPR TROUGH.
552 AM EST WED MAR 2 2016 HIGH PRESSURE IS WEAKENING OVER THE REGION AS A WEAK COLD FRONT APPROACHES THE AREA. THEY SHOW THAT A SERIES OF LOW PRESSURE SYSTEMS WILL DEVELOP AND TRACK WELL TO THE NORTH OF FLORIDA. THEY EACH WILL HAVE AN ASSOCIATED COLD FRONT THAT WILL HAVE LITTLE IMPACT ON SOUTH FLORIDA, BOTH BEING DRY AND MAINLY JUST A WIND SHIFT.
WEST WINDS 15 MPH WITH SOME HIGHER GUSTS COMBINED WITH SOME SUNSHINE WILL BOOST TEMPS INTO THE LOWER 80S MOST AREAS. S/W TROUGH WILL SHIFT EASTWARD AND OFFSHORE THE MID ATLANTIC COAST TODAY. PUSHING A WEAK COLD FRONT THROUGH THE REGION. WINDS BECOME N/NW BEHIND THE FRONT INTO TONIGHT WITH DRIER AND SLIGHTLY COOLER AIRMASS BUILDING INTO CENTRAL FLORIDA. SKIES WILL BE MOSTLY CLEAR TO PARTLY CLOUDY WITH LOWS RANGING FROM UPPER 40S/LOW 50S NORTHWEST OF I-4 AND IN THE LOW 60S ALONG THE TREASURE COAST. STRATOCUMULUS DECK WITH CIGS AOA FL035 AGL SHOULD OCCUR ALONG COLD FRONT AS IT PUSHES SOUTHWARD OVER CENTRAL FLORIDA TODAY. ELSEWHERE OFFSHORE FLOW WILL BE UP TO 10-15 KNOTS TODAY WITH SEAS 2-4 FT AS A WEAK COLD FRONT MOVES THROUGH THE WATERS.
CHA MAY SEE EROSION OF THE LOWER LAYER AROUND 16Z. ENOUGH DRY AIR IN PLACE IN THE LOW LEVELS OVERNIGHT TO KEEP FLIGHT WEATHER VFR.
VERY STRONG HIGH PRESSURE SYSTEM OVER THE REGION WILL CONTINUE TO PRODUCE VERY WARM TEMPERATURES.
CURRENTLY HIGH PRESSURE WAS OVER AR WITH LIGHT AND VARIABLE WINDS. THE UPPER TROUGH WAS TO THE EAST OF THE REGION.
828 AM EST WED MAR 2 2016 A WEAK COLD FRONT CONTINUES TO PUSH TO THE SOUTHEAST. AREAS OF MVFR WILL PREVAIL THIS MORNING FOR NE FL SITES AS A COLD FRONT CROSSES THE AREA. AND HIGHEST ERC VALUES IN THE LOWER 30S.
THE HIGH WIND WARNING ALONG THE ROCKY MOUNTAIN FRONT DOES NOT LOOK AS GOOD AS IT DID YESTERDAY AND HAVE BEEN TEMPTED TO CANCEL IT.
439 AM CST WED MAR 2 2016 A COLD FRONT HAD PUSHED OFFSHORE THIS MORNING WITH LIGHT NORTHERLY FLOW ACROSS THE NORTHERN AREAS AND A LITTLE BIT HIGHER ALONG THE COAST AND EVEN MORE OVER THE COASTAL WATERS. HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE AREA THIS MORNING WITH MOSTLY CLEAR SKIES EXPECTED ACROSS THE MAJORITY OF THE AREA TODAY. TROUGHING WILL DEEPEN OVER TIME ACROSS THE EASTERN UNITED STATES TODAY AND THURSDAY WITH HIGH PRESSURE OVER THE WESTERN UNITED STATES. RAPID DRYING IS EXPECTED AFTER FRONTAL PASSAGE AND THEREFORE EXPECT HIGH PRESSURE TO REBUILD BACK INTO THE REGION THROUGH THE WEEKEND.
940 AM EST WED MAR 2 2016 COLD FRONT JUST ABOUT TO REACH CEDAR KEY. COLD FRONT TO MOVE THROUGH TAMPA BAY AROUND 19Z AND FORT MYERS AROUND 23Z. HIGH PRESSURE AND VFR AFT 23Z. COLD FRONT TO PASS THROUGH COASTAL WATERS THIS AFTERNOON WITH WINDS BECOMING NORTH AND INCREASING TO 10 TO 15 KNOTS AND SEAS BUILDING TO 2 TO 4 FEET. HUMIDITY FALLS BELOW 35 PERCENT IN LEVY COUNTY THIS AFTERNOON BEHIND COLD FRONT ERC AT 27.
DRY UPPER RIDGING OVER CA WILL PROVIDE OUR AREA WITH ANOTHER MOSTLY SUNNY AND UNSEASONABLY WARM DAY TODAY.
HIGH PRESSURE WILL REDEVELOP ACROSS THE REGION TODAY AND REMAIN IN PLACE THROUGH THURSDAY.
702 AM EST WED MAR 2 2016 A COLD FRONT WILL MOVE THROUGH THIS MORNING THEN HIGH PRESSURE WILL BUILD IN THROUGH THURSDAY.
EXPECT COVERAGE TO START TO WANE AS H500 TROUGH/H850 THERMAL TROUGH MOVE THROUGH. H500 TROUGH AXIS IS ROTATING INTO THE CWA. WEAK HIGH PRESSURE QUICKLY PASSES BY THIS EVENING. CL WEAK LOW PRESSURE WILL APPROACH FROM THE WEST THURSDAY MORNING. MID-LEVEL MOISTURE WILL GRADUALLY INCREASE ALONG A WARM FRONT. ISENTROPIC LIFT ACROSS THE WARM FRONT WILL SERVE AS THE FOCUS FOR INCREASING POPS. BEST CHANCE FOR ACCUMULATION WOULD BE IN THE RIDGES AND NORTH OF I-70.
BEFORE MID CLOUD THICKENS LATE TONIGHT IN ADVANCE OF THE NEXT LOW PRESSURE SYSTEM. LOW END VFR CIGS WILL PERSIST THROUGHOUT TODAY WITH ABUNDANT MOISTURE REMAINED TRAPPED IN THE LOWER BOUNDARY LAYER. LIGHT SNOW ASSOCIATED WITH THE NEXT LOW PRESSURE SYSTEM IS EXPECTED TO ADVANCE TOWARD THE METRO TERMINAL AT/AROUND 14Z THURSDAY MORNING. THIS HIGH WILL HOLD THROUGH THE DAY BRINGING MUCH QUIETER CONDITIONS AS COMPARED TO YESTERDAY. TONIGHT THE THUMB AREA MAY SEE SLIGHT CHANCES FOR SOME SNOW SHOWERS AS MODELS ARE INDICATING A WEAK RESPONSE IN THE FLOW COUPLED WITH NORTHERLY FLOW FROM THE HIGH JUST TO THE NORTH OF THE REGION. MODEL SOUNDINGS INDICATING A PRETTY STABLE LAYER WITH THE DGZ LAYER SLIGHTLY HIGHER AND IN TURN ONLY EXPECTING LIGHT SNOWFALL AS THE INVERTED TROUGH SLIDES ACROSS THE AREA.
TEMPERATURES WILL BE COOLER THAN NORMAL FOR THE REMAINDER OF THE WEEK. AND BREEZY CONDITIONS WILL PREVAIL BEHIND AN EXITING COLD FRONT.
A COLD FRONT WILL BRING A WIND SHIFT TO THE NORTH OR NORTHWEST AT ALL SITES AFTER 03Z. MVFR OR LOWER CONDITIONS WITH BR MAY FORM AT SOUTHEAST OF THE COLD FRONT 06-12Z AT ANY SITE EXCEPT KWWR AND KGAG. BUT WENT WITH THE LOWER/DRIER SIDE OF MODEL GUIDANCE WITH SURFACE DEWPOINTS MAINLY IN THE 25 TO 35 DEGREE RANGE. TODAY WILL BE BREEZY TO WINDY AND WARMER. GENERALLY FROM THE UPPER 60S EAST OF I-35 TO THE LOWER 80S NEAR QUANAH. A COLD FRONT WILL MOVE INTO THE AREA. THURSDAY WILL BE SLIGHTLY COOLER AND NOT QUITE AS BREEZY.
509 AM EST WED MAR 2 2016 A STRONG COLD FRONT IS CROSSING THE REGION EARLY THIS MORNING.
1029 AM EST WED MAR 2 2016 A COLD FRONT WILL MOVE THROUGH THIS MORNING THEN HIGH PRESSURE WILL BUILD IN THROUGH THURSDAY.
A WARM FRONT WILL MAKE ITS WAY NORTH THROUGH THE COASTAL WATERS THIS MORNING TO BE FOLLOWED BY THE COLD FRONT THIS AFTERNOON. AS THE WARM FRONT MOVES NORTH. WE HAVE UPGRADED THE HIGH WIND WATCH ALONG THE COAST TO THE HIGH WIND WARNING FROM EARLY THIS AFTERNOON THROUGH THIS EVENING. INTERESTINGLY GUIDANCE KEEPS BREEZY CONDITION OVERNIGHT EVEN AFTER THE COLD FRONT HAS MOVED THROUGH. THIS IS RATHER UNUSUAL AS NORMALLY WINDS DECREASE SIGNIFICANTLY AFTER COLD FRONT PASSAGE. THIS COULD BE DUE TO THE FACT THAT THE COLD FRONT IS EXPECTED TO DISSIPATE INLAND WHILE THE PARENT LOW PRESSURE OFFSHORE SPINS UP ANOTHER FRONT AND THE SOUTH TO SOUTHEAST WINDS AHEAD OF IT. SOUTHWEST WINDS AHEAD AND AFTER THE COLD FRONT WILL BE STRONG ENOUGH TO WARRANT A WIND ADVISORY THERE.
AT THE SURFACE AND IN THE LOWER TO MIDDLE LEVELS. AN ATTENDANT COLD FRONT SNAKES SOUTHWESTWARD TO NEAR THE NORTHERN GULF COAST FROM 992 MB LOW PRESSURE OVER SOUTHERN QUEBEC. THE ABOVE MENTIONED COLD FRONT WILL WEAKEN A BIT AS IT MOVES SOUTHWARDS ACROSS NORTH FLORIDA. THE LOW TEMPERATURE IN KEY WEST WAS 48 DEGREES.
SURFACE OBSERVATIONS THIS MORNING SHOW TEMPERATURES MUCH COLDER VERSUS YESTERDAY WITH TEMPERATURES CURRENTLY IN THE LOW TO MID 30S.
THE END RESULT WILL BE ENHANCED DOWNSLOPE WESTERLY WINDS ON THE HIGH-END OF THE BREEZY OR LOW-END OF THE WINDY SPECTRUM AS WELL AS PUSHING TEMPERATURES INTO THE LOWER 80S WHICH WILL BE 15 TO 20 DEGREES ABOVE NORMALS FOR EARLY MARCH. BY TONIGHT ANOTHER PACIFIC- TYPE COLD FRONT WILL DROP QUICKLY SOUTHWARD WITH A WEAK SURFACE PRESSURE RIDGE SETTLING IN BEHIND. A COOLER MORNING CLOSE TO GUIDANCE TRENDS WILL GET THURSDAY GOING. EVEN THOUGH THEY WILL BE COOLER TEMPS WILL STILL BE CLOSE TO 10 DEGREES ABOVE AVERAGE.
626 AM EST WED MAR 2 2016 A COLD FRONT WILL PUSH EAST OF THE AREA TODAY AND DRIER AIR WILL BUILD OVER THE REGION TODAY THROUGH MIDDAY THURSDAY. TEMPERATURES WILL BE COOLER THAN NORMAL FOR THE REMAINDER OF THE WEEK. COLD FRONT CONTINUES TO PUSH EAST ACROSS THE FORECAST AREA EARLY THIS MORNING CROSSING THE AIRPORT AT CAE AROUND 5AM. COOLER AND DRIER AIR WILL BUILD INTO THE REGION TODAY BEHIND THE FRONT WITH BREEZY WEST TO NORTHWESTERLY WINDS AND PWAT VALUES DROPPING TO AROUND 0.
1044 AM EST WED MAR 2 2016 COLD FRONT CONTINUES ITS PROGRESS THROUGH NORTH FLORIDA THIS MORNING WITH LITTLE CONVECTION ON THE RADAR. SEA BREEZE DEVELOPMENT IS POSSIBLE WITH TEMPERATURES PUSHING INTO THE LOWER 80S THIS AFTERNOON.
TEMPERATURES WILL BE A LITTLE WARMER TONIGHT WITH LOWS GENERALLY IN THE 40S. THE PRECIPITATION SHOULD END BY MID/LATE EVENING WITH HIGH PRESSURE BUILDING IN BEHIND DURING THE OVERNIGHT HOURS.
COOLER AIR HAS SETTLED OVER THE MID LEVELS WITH 850 MB TEMPERATURES DOWN ABOUT 5 DEGREES OVER THE PAST 24 HOURS. AS A RESULT HIGH TEMPERATURES WILL BE AT LEAST A FEW DEGREES COOLER THAN YESTERDAY.
618 AM EST WED MAR 2 2016 LOW PRESSURE WAS MOVING INTO THE NEW ENGLAND STATES EARLY THIS MORNING WITH A COLD FRONT WELL EAST OF THE AREA. HIGH PRESSURE FROM THE PLAINS WILL BUILD EASTWARD ACROSS THE AREA TODAY. ANOTHER AREA OF LOW PRESSURE WILL MOVE EAST NEAR THE OHIO RIVER VALLEY ON THURSDAY.
THE SYSTEM SEEMED TO BE LARGELY FED BY WARM SOUTHERLY WINDS AND SUPPORTED BY THE UPPER LEVEL LOW. AS THE UPPER LOW MOVES EAST AND OUT OF THE INTERMOUNTAIN WEST AND A RIDGE MOVES IN IN ITS PLACE. RIDGE AXIS EXPECTED TO CROSS OVER THE REGION IN THE LATE EVENING. NEXT COLD FRONTAL PASSAGE WILL MOVE THROUGH THE REGION THURSDAY.
521 AM EST WED MAR 2 2016 A COLD FRONT WILL PUSH EAST OF THE AREA TODAY AND DRIER AIR WILL BUILD OVER THE REGION TODAY THROUGH MIDDAY THURSDAY. TEMPERATURES WILL BE COOLER THAN NORMAL FOR THE REMAINDER OF THE WEEK. COLD FRONT CONTINUES TO PUSH EAST ACROSS THE FORECAST AREA EARLY THIS MORNING CROSSING THE AIRPORT AT CAE AROUND 5AM. COOLER AND DRIER AIR WILL BUILD INTO THE REGION TODAY BEHIND THE FRONT WITH BREEZY WEST TO NORTHWESTERLY WINDS AND PWAT VALUES DROPPING TO AROUND 0.
BUT WENT WITH THE LOWER/DRIER SIDE OF MODEL GUIDANCE WITH SURFACE DEWPOINTS MAINLY IN THE 25 TO 35 DEGREE RANGE. TODAY WILL BE BREEZY TO WINDY AND WARMER. GENERALLY FROM THE UPPER 60S EAST OF I-35 TO THE LOWER 80S NEAR QUANAH. A COLD FRONT WILL MOVE INTO THE AREA. THURSDAY WILL BE SLIGHTLY COOLER AND NOT QUITE AS BREEZY.
TEMPERATURES WILL FALL BACK INTO THE 60S AND LOWER 70S BEHIND A COLD FRONT.
LOOK FOR ANOTHER VIGOROUS LOW PRESSURE SYSTEM TO IMPACT THE REGION ON FRI FOR MORE LOCALLY HEAVY PRECIP AND GUSTY WINDS.
925MB THERMAL TROF RELEGATED TO FAR NERN UPR GREAT LAKES INTO LOWER GREAT LAKES. MODEST AMOUNTS OF INSOLATION TO HELP TEMPS TO RECOVER SLIGHTLY WARMER THAN PRIOR WITH SLIGHT UPWARD NUDGE. AN UPPER LEVEL SHORT WAVE TROF WILL RACE SOUTHEAST TODAY AND MOVE INTO THE FORECAST AREA LATE TONIGHT AND THURSDAY.
Winds will gust up to 50 mph at times across the Northern Rockies throughout this morning, following a cold front that moved across the region overnight. Following some early morning fog and freezing fog within area valleys on Thursday, the next storm system is anticipated to impact the Northern Rockies by midday.
532 AM EST WED MAR 2 2016 LOW PRESSURE RESIDES OVER UPSTATE NEW YORK THIS MORNING WITH AN ASSOCIATED COLD FRONT EXTENDING TO THE SOUTH SOUTHWEST. THE COLD FRONT CURRENTLY IMPINGING UPON THE FLORIDA PANHANDLE WILL WEAKEN AND DRIFT SOUTHWARD ACROSS THE PENINSULA TODAY.
642 AM EST WED MAR 2 2016 A STRONG COLD FRONT IS CROSSING THE REGION EARLY THIS MORNING.
HIGH PRESSURE OVER THE SOUTHERN GREAT LAKES WILL MOVE ON TO THE EAST AND ACTIVE WEATHER WILL RETURN LATE TONIGHT AND THURSDAY AS LOW PRESSURE OVER THE CENTRAL PLAINS MOVES OUR WAY. A COLD FRONT WILL MOVE SOUTH ACROSS OUR REGION THURSDAY NIGHT AS AN AN UPPER TROUGH AMPLIFIES ACROSS THE GREAT LAKES.
VERY WARM TEMPERATURES WILL BE THE STORY OVER THE NEXT FEW DAYS AS UPPER RIDGING BUILDS IN. 850 MB TEMPS WILL REMAIN QUITE WARM IN THE LOW 20S C. BUT THANKS TO WEAK NORTHERLY FLOW AND APPROACHING HIGH PRESSURE. LOW LEVEL FLOW LOOKS TO BE MORE SOUTHERLY AND SOUTHWESTERLY WITH THE RIDGE OVERHEAD. SO TEMPS SHOULD BE WARMER THAN TODAY.
THE UPPER RIDGE WILL PERSIST THROUGH THE SHORT TERM AND HOT TEMPERATURES ARE EXPECTED AGAIN TODAY AND THURSDAY. 41 GUIDANCE IN FAIRLY DECENT CONSENSUS WITH THE FORECAST AS WE SHIFT INTO A MORE ACTIVE PATTERN WITH THE LONG AWAITED RETURN OF THE UPPER TROUGH.
907 AM EDT WED JUN 24 2015 HIGH PRESSURE WILL RESULT IN DRY WEATHER WITH INCREASING AMOUNTS OF SUNSHINE THIS AFTERNOON. A PASSING WAVE OF LOW PRESSURE WILL BRING SHOWERS THROUGH THE REGION LATE THURSDAY. OUR PATTERN WILL REMAIN SLIGHTLY COOLER THAN NORMAL. AS HIGH PRESSURE SPREADS IN FROM THE MIDWEST. SOUTHERN STREAM WARM FRONT WILL ATTEMPT TO LIFT NORTHWARD FROM THE MIDATLANTIC STATES BUT WILL FALL SHORT. BAROCLINIC LIFT WILL OCCUR NORTH OF THAT WARM FRONT. EASTERN UPPER TROUGH WILL BE SETTING UP.
1247 PM EDT WED JUN 24 2015 HIGH PRESSURE WILL BRING DRIER CONDITIONS WITH SOME SUNSHINE ALONG WITH COOLER.
1244 PM EDT WED JUN 24 2015 HIGH PRESSURE WILL MOVE EAST ACROSS THE AREA TODAY.
THE LOWER TREASURE COAST WILL LIKELY SEE EARIEST CONVECTION. RIDGE AXIS CENTERED JUST N OF THE BAHAMA BANK WILL GENERATE A LIGHT TO GENTLE SRLY BREEZE OVER THE LCL ATLC.
1108 AM CDT WED JUN 24 2015 TEMPERATURES ARE CLIMBING QUICKLY ACROSS THE NORTHEASTERN COUNTIES WHERE THE INFLUENCE OF A 500MB RIDGE IS BEING FELT THE MOST.
CONFLUENT FLOW ALOFT AHEAD OF BUILDING RIDGE AND ASSOC MID-LVL Q-VECT DIV/SUBSIDENCE SHOULD GENERALLY LEAD TO DRYING CONDITIONS ESPECIALLY BY LATE AFTERNOON.
1013 AM EDT WED JUN 24 2015 HIGH PRESSURE IN CHARGE FOR TODAY. COLD FRONT APPEARS TO BE LOCATED ACROSS OUR FAR SOUTHERN COUNTIES. ALLOWING AN AREA OF LOW PRESSURE TO APPROACH FROM THE WEST. END RESULT SHOULD BE SLIGHTLY COOLER TEMPERATURES TODAY. A COLD FRONT APPROACHES FROM THE NORTHWEST THURSDAY KEEPING CONDITIONS UNSETTLED FOR ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS THROUGH THURSDAY NIGHT.
CONFIDENCE TODAY INTO TONIGHT REMAINS ON THE LOW SIDE. GIVEN THE HIGH RESOLUTION MODELS ARE SOMEWHAT IN AGREEMENT WITH THE 24. THE MAJORITY OF THE HIGH RESOLUTION MODELS SUGGEST ENTRAINMENT OF THE CONVECTION TO BE JUST SOUTH OF THE FORECAST AREA.
1030 AM EDT WED JUN 24 2015 HIGH PRESSURE WILL BRING DRIER CONDITIONS WITH SOME SUNSHINE ALONG WITH COOLER.
917 AM EDT WED JUN 24 2015 AN UPPER-LEVEL RIDGE ACROSS THE SOUTHERN STATES WILL HOLD ABOVE NORMAL TEMPERATURES ACROSS THE AREA THROUGH THE END OF THE WORKWEEK. COOLER TEMPERATURES AND INCREASED CHANCES FOR CONVECTION WILL ARRIVE THIS WEEKEND AS THE AN UPPER-LEVEL TROUGH DEVELOPS OVER THE EASTERN STATES. THE PERSISTENT UPPER RIDGING WILL HELP TEMPERATURES CLIMB INTO MIDDLE AND UPPER 90S. THE LATEST ANALYSIS HAD A WEAK SURFACE HEAT TROUGH THAT SHOULD CONTINUE THROUGH TONIGHT. COVERAGE SHOULD BE LIMITED BY SOMEWHAT SHALLOW MOISTURE AND UPPER RIDGING. THE HIGH-RESOLUTION MODELS DISPLAY ISOLATED OR SCATTERED COVERAGE MAINLY AFTER 200 PM. UPPER LEVEL HEIGHTS ARE FORECAST TO RISE A BIT THURSDAY AS THE RIDGE BUILDS EAST. WITH A SURFACE LEE SIDE TROUGH ACROSS THE PIEDMONT. HAVE KEPT A CHANCE FOR SLOW MOVING STORMS EAST THE OF THE TROUGH.
INCREASING HIGH CLOUDS AND SLIGHTLY COOLER TEMPERATURES ARE EXPECTED LATE IN THE WEEK LASTING INTO THE WEEKEND. BOTH MODELS QUICKLY BUILD A RIDGE OF HIGH PRESSURE OVER THE WESTERN CONUS TONIGHT WHICH WILL PROVIDE A RAPID WARM UP FOR THURSDAY. LIGHT ONSHORE WINDS SHOULD PROVIDE COOLER TEMPERATURES ALONG THE COAST AVERAGING IN THE LOW TO MID 70S. THE RIDGE OF HIGH PRESSURE CONTINUES TO BUILD OVER THE WESTERN CONUS THROUGH THE WEEKEND. AS THE RIDGE BUILDS IT WILL BEGIN TO ADVECT MONSOON MOISTURE INTO CALIFORNIA WHICH WILL RESULT IN MID TO UPPER LEVEL CLOUD COVER OVER THE FORECAST AREA.
THESE CLOUDS MAY SLOW HEATING SOMEWHAT BUT SHOULD STILL BE ABLE TO REACH THE LOWER TO MID 90S TODAY. A MID LEVEL TROUGH ACROSS EXTREME SE GA AND NE FL WILL SLOWLY SINK SWD AND COMBINE WITH HIGH MOISTURE (PWATS NEAR 2 INCHES) AND SEA BREEZES TO PRODUCE SCT TO NUMEROUS SHOWERS AND STORMS LATER TODAY.
1029 AM EDT WED JUN 24 2015 HIGH PRESSURE BUILDING OVER THE REGION WILL BRING FAIR AND DRY WEATHER INTO THURSDAY MORNING. BREAK IN THE WEATHER TODAY AS DRIER AIR CONTINUES TO WORK INTO CENTRAL PA WITH 1020MB HIGH PRESSURE BUILDING IN. ZONAL FLOW ALOFT WILL PUSH NEXT WAVE OF LOW PRESSURE TOWARD PA. DEWPOINTS EDGE UP ACROSS THE SOUTH AS TUE/S FRONT LIFTS BACK NORTH AS A WARM FRONT AHEAD OF THE WAVE. BIGGER IMPACTS LOOK TO BE OVER THE WEEKEND AS ZONAL FLOW TRANSITIONS TO A DEEP TROUGH OVER THE EASTERN U. SAT/SUN LOOKING VERY SHOWERY AND POTENTIALLY COOL /ABOUT 10F BELOW NORMAL/ AS PLENTIFUL CLOUDS AND INCREASING EASTERLY THEN NORTHERLY FLOW DRAW COOLER AIR INTO THE REGION.
HIGH PRESSURE REMAINS OVER THE REGION AND WILL CONTINUE TO LIMIT SHOWER OR THUNDERSTORM ACTIVITY TODAY. ITS SUMMERTIME WHICH MEANS HOT AND HUMID WITH THE HIGHEST TEMPS STILL LAYING AHEAD OF US.
HIGH PRESSURE WILL BRING FAIR AND WARM WEATHER THIS WEEK WITH SOME COASTAL CLOUDS EACH NIGHT AND MORNING. MORE OF THIS SAME WEATHER WILL COME IN THE NEXT FEW DAYS AS A HIGH PRESSURE RIDGE DOMINATES THE WEST. THE RIDGE WILL BACK INTO OREGON WHILE A WEAK LOW PRESSURE SETS UP FAR TO OUR SOUTH OFF THE COAST OF MEXICO DURING THE WEEKEND.
727 AM EDT WED JUN 24 2015 HIGH PRESSURE WILL BRING DRIER CONDITIONS WITH SOME SUNSHINE ALONG WITH COOLER.
PERSISTENT WARM AND DRY FLAT RIDGE PATTERN WILL CONTINUE THROUGH TODAY. THE RIDGE WILL BEGIN TO BULGE NORTHWARD ON THURSDAY AS THE FOUR CORNERS HIGH BEGINS TO EXPAND NORTHWARD. TEMPERATURES WILL BEGIN TO CLIMB ON THURSDAY AS A RESULT OF THE BUILDING HIGH PRESSURE. THIS HIGH PRESSURE WILL BECOME THE DOMINATE WEATHER FEATURE OVER THE WEEKEND BRINGING POSSIBLE RECORD HEAT TO THE PACIFIC NORTHWEST.
1043 AM CDT WED JUN 24 2015 THE ONCE STRONG MID-LEVEL RIDGING CENTERED OVER LOUISIANA YESTERDAY MORNING (160 DAM 85H / 1250 DAM 70H HEIGHTS) IS SLOWLY BEGINNING TO WEAKEN. WITH THE REGION STILL UNDER THE RELATIVELY LOWER HEIGHT SOUTHERN SIDE OF A 595 DAM ARKANSAS CENTERED 5H RIDGE. EXPECTING THIS CONTINUED WEAKENING OF NORTHERN GULF RIDGING. ALONG WITH AMPLIFYING WESTERN CONUS RIDGING.
/ISSUED 356 AM CDT WED JUN 24 2015/ AN UPPER RIDGE CENTERED OVER OK THIS MORNING WILL SLIDE EAST DURING THE DAY. THE CENTER OF RIDGE WILL REFORM BACK TO THE WEST ON THURSDAY NEAR 4 CORNERS REGION AS HIGH PRESSURE STRENGTHENS OVER THE WESTERN U. S AND A TROUGH DEEPENS OVER THE EAST.
LOOKS LIKE THE SHORT TERM PORTION OF THIS FORECAST WILL FEATURE SOMEWHAT TRANQUIL WEATHER AS THE COLD FRONT HAS EXITED TO THE SOUTH OF KENTUCKY. THIS WILL ALLOW FOR COOLER TEMPERATURES TONIGHT AS TEMPERATURES FALL BACK INTO THE LOW TO MID 60S.
WHERE WEAK COLD FRONT/OUTFLOW BOUNDARY WILL RESIDE.
WEST/NORTHWEST FLOW CONTINUES ON THURSDAY WHILE UPPER RIDGE OVER THE WESTERN CONUS STARTS TO GRADUALLY INTENSIFY. MODEST SHEAR/INSTABILITY OVER MOST OF THE AREA WILL KEEP SEVERE THREAT ON THE LOW SIDE.
702 AM EDT WED JUN 24 2015 A COLD FRONT WILL MOVE IN FROM THE NORTHWEST AND BECOME STATIONARY ACROSS THE REGION TODAY. WARM AND MUGGY OVERNIGHT WITH LOWS IN THE LOWER TO MID 70S. PATTERN CHANGES COMING WITH A WETTER COOLER SCENARIO SETTING UP. THE UPPER LEVEL RIDGE REALLY STARTS TO BREAK DOWN IN EARNEST ON THURSDAY WITH HEIGHTS FALLING. A MOIST SOUTHWEST FLOW WILL COMBINE WITH THE SEA BREEZE AND A SHARPENING INLAND TROUGH TO ENHANCE CHANCES OF SHOWERS/THUNDERSTORMS DURING THE AFTERNOON AND EVENING. TEMPERATURES WILL RELATIVELY COOLER.
EXPECT SCT TSTMS OVER THE HIGHER TERRAIN THIS AFTN WITH WIDELY SCT ACTIVITY OVER THE VALLEYS. AS FOR HIGHS WILL KEEP READINGS SIMILAR TO YESTERDAY AS 850-700 MB TEMPS CHANGE LITTLE HOWEVER IF WNW DOWNSLOPE WINDS DO DVLP ALONG THE FRONT RANGE HIGHS COULD END UP BEING A FEW DEGREES WARMER THAN FCST. FOR TONIGHT TSTMS SHOULD END OVER THE HIGHER TERRAIN DURING THE EARLY EVENING HOURS. MODERATE WESTERLY FLOW ALOFT WILL BE IN PLACE AS AN UPPER RIDGE CONTINUES OVER THE SOUTHEASTERN UNITED STATES. ON THURSDAY NIGHT A SURFACE COLD FRONT WILL MOVE INTO NORTHEAST COLORADO.
A WEAK COLD FRONT HAS CURRENTLY STALLED JUST TO THE SOUTH AND WEST OF THE FORECAST AREA THIS MORNING. WITH HIGHS REACHING THE LOW TO MID 90S BY THE AFTERNOON. CHATTANOOGA AIRPORT, TN 95 73 96 75 / 30 20 20 40 KNOXVILLE MCGHEE TYSON AIRPORT, TN 93 71 94 73 / 20 10 10 40 OAK RIDGE, TN 92 70 95 73 / 20 10 10 40 TRI CITIES AIRPORT, TN 90 65 92 66 / 10 10 10 40.
A WESTERN ATLANTIC RIDGE REMAINS ANCHORED ACROSS CENTRAL FLORIDA AND WELL INTO THE GULF OF MEXICO.
738 AM EDT WED JUN 24 2015 HIGH PRESSURE WILL BRING DRIER CONDITIONS WITH SOME SUNSHINE ALONG WITH COOLER.