Aikyam-Lab/Synoptic-Bench huggingface dataset:
SCATTERED STORMS IN PROGRESS ACROSS THE NORTHERN/EASTERN HALF OF THE CWA IN ADVANCE OF A STRONG COLD FRONT EXPECTED TO SWEEP THROUGH THE STATE OVERNIGHT. THE COLD FRONT IS CURRENTLY SITUATED ACROSS SW MINNESOTA. TONIGHTS SYSTEM WILL LINGER A BIT LONGER SATURDAY MORNING AS UPPER LEVEL TROUGH AND SHEAR ALOFT WILL CONTINUE TO ENHANCE CLOUD COVER AND CHANCES FOR LIGHT RAIN SHOWERS OVER THE SOUTHEAST THROUGH LATE MID TO LATE MORNING.
AND WOULD LIKELY BE DELAYED TO LATER THIS EVENING AS A COLD FRONT ADVANCES SOUTHWARD INTO THE AREA. RATHER STOUT COLD FRONT DIVING TOWARD I-70 IN COLORADO AT 3PM IS DUE TO ARRIVE IN OUR NORTHERN COUNTIES AFTER MIDNIGHT. HOWEVER MOST MODELS FAVOR ENOUGH POST-FRONTAL SATURATION ALONG THE ELEVATED FRONT/INVERSION LAYER WHICH SHOULD GARNER ADDITIONAL PRECIP CHANCES PARTICULARLY AS THE BASE OF AN UPPER TROUGH GLIDES SE FROM COLORADO. PRECIP SHOULD BE FADING STEADILY FROM N-S BY SUNRISE AS SUBSIDENCE TAKES GRASP BEHIND THE UPPER TROUGH.
MODERATE AMPLITUDE LONGWAVE RIDGING HAS BUILT OVER THE SWRN CONUS DURING THE PAST 24 HOURS WITH 00Z REGIONAL SOUNDING DATA SAMPLING 2 TO 3DM H5 HEIGHT RISES. WITH ALL SIGNS POINTING TO STRENGTHENING UPPER RIDGING AND STEADILY INCREASING 925-700MB TEMPERATURES.
942 PM EDT FRI MAY 29 2015 HIGH PRESSURE WILL MOVE OFF THE NEW ENGLAND COAST TONIGHT AS A COLD FRONT MOVES THROUGH THE WESTERN LAKES. THE COLD FRONT WILL MOVE ACROSS THE REGION LATE SATURDAY AFTERNOON.
759 PM EDT FRI MAY 29 2015 BERMUDA HIGH WILL BEGIN PUSHING AWAY FROM THE REGION SATURDAY AS A WEAK LOW PRESSURE SYSTEM SLOWLY MOVES EASTWARD THROUGH THE CENTRAL US.
1122 PM EDT FRI MAY 29 2015 WARMER AND MORE HUMID CONDITIONS WILL CONTINUE INTO SATURDAY.
1000 PM EDT FRI MAY 29 2015 HIGH PRESSURE WILL EXTEND OVER THE REGION FROM THE NORTHEAST THROUGH THE WEEKEND.
AFTER THAT, FORECAST IS ON TRACK FOR A DRIER AND WARMER SATURDAY WITH ONLY A SLIGHT CHANCE OF ISOLATED CONVECTION IN AND NEAR THE FOOTHILLS. THE UPPER TROUGH AXIS IS OVER THE EASTERN CWA RIGHT NOW AND MODELS HAVE IT THROUGH BY MID EVENING. THERE IS NORTH-NORTHEASTERLY FLOW ALOFT ON SATURDAY WITH WEAK UPPER RIDGING MOVING IN. THEN THINGS DRY OUT PRETTY GOOD BEHIND THE UPPER TROUGH IN THE SUBSIDENCE. BY SATURDAY AFTERNOON THERE IS LIMITED CAPE PROGGED MAINLY OVER THE HIGH COUNTRY. SATURDAY'S HIGHS LOOK TO BE 4-7 C WARMER THAN TODAY'S HIGHS. PRETTY GOOD MODEL AGREEMENT ON THE UPPER RIDGE MOVING OVER THE STATE INTO THE EARLY PART OF THE WEEK. TEMPERATURES WILL BE WARMER.
A COASTAL TROUGH PERSISTED OFFSHORE OF THE LOCAL ATLANTIC COAST WITH GREATER COVERAGE THIS AFTERNOON AND EVENING OF VERY LIGHT SHOWER ACTIVITY. OVERNIGHT LOW TEMPS WERE ON TRACK TO BE A BIT WARMER THAN PREVIOUS NIGHTS WITH LOWS IN THE MID 60S INLAND TO LOW/MID 70 ALONG THE ST JOHNS RIVER BASIN/ATLANTIC COAST UNDER ONSHORE FLOW.
1050 PM EDT FRI MAY 29 2015 A STORM SYSTEM WILL PULL A WARM ACROSS NY TONIGHT, WITH A COLD FRONT APPROACHING LATE SATURDAY.
728 PM EDT FRI MAY 29 2015 HIGH PRESSURE WILL RETURN TODAY AND MOVE OFF THE COAST OVER THE WEEKEND ALLOWING A WARM AND HUMID SOUTHWEST FLOW TO RETURN.
PACIFIC SHORT WAVE TROUGH BRINGING THUNDERSTORMS THIS EVENING TO NRN OREGON. OUR CWA HAS REMAINED FREE OF THUNDERSTORMS UNDER DRIER WSWLY FLOW AROUND A BROAD UPPER RIDGE OVER THE WRN U.
ALBEIT ERODING WESTERN ATLANTIC RIDGE IS ALIGNED ACROSS THE SOUTHEAST UNITED STATES AND INTO THE GULF COAST REGION. EASTERLY WINDS THROUGH THE LOWER LEVELS WILL CONTRIBUTE TO LEE SIDE ISLAND CLOUD LINES TOMORROW AFTERNOON.
748 PM EDT FRI MAY 29 2015 A STORM SYSTEM WILL PULL A WARM ACROSS NY TONIGHT, WITH A COLD FRONT APPROACHING LATE SATURDAY.
845 PM EDT FRI MAY 29 2015 WARMER AND MORE HUMID CONDITIONS WILL CONTINUE INTO SATURDAY.
A COLD FRONT WILL BRING A WIND SHIFT TO ALL SITES FROM NORTH TO SOUTH OVERNIGHT. THE APPROACHING COLD FRONT FROM THE NORTHWEST WILL BRING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS INTO EASTERN OKLAHOMA LATE TONIGHT.
1041 PM EDT FRI MAY 29 2015 WARMER AND MORE HUMID CONDITIONS WILL CONTINUE INTO SATURDAY.
705 PM EDT FRI MAY 29 2015 HIGH PRESSURE WILL EXTEND OVER THE REGION FROM THE NORTHEAST THROUGH THE WEEKEND.
926 PM EDT FRI MAY 29 2015 HIGH PRESSURE WILL PERSIST OFFSHORE THROUGH SATURDAY WITH CONTINUED WARM AND HUMID CONDITIONS TO THE MID-ATLANTIC.
655 PM CDT FRI MAY 29 2015 SHOWERS LINGERING BEHIND THE COLD FRONT WILL MOVE OUT STEADILY DURING THE EVENING HOURS AND CLEARING WILL BEGIN FROM THE NORTH. IT WILL BE ANOTHER COOL NIGHT WITH LOWS IN THE LOWER TO MID 40S.
923 PM CDT FRI MAY 29 2015 A REGION OF HIGH PRESSURE CONTINUES TO BRING CLEAR SKIES TO THE REGION. TEMPERATURES WERE MAINLY IN THE LOW TO MIDDLE 50S. THIS WILL RESULT IN OVERNIGHT LOWS IN THE LOW TO MIDDLE 30S ACROSS MOST OF THE FORECAST AREA SATURDAY MORNING.
OVERALL RIDGE BUILDING IN FROM THE EAST WILL KEEP MOST OF THE AREA DRY OVERNIGHT AND A GOOD CHUCK OF THE DAY SATURDAY. THE UPPER LEVEL FORCING IS A BIT WEAKER AS DRIER AIR BUILDS IN FROM THE EAST VIA RIDGE.
801 PM EDT FRI MAY 29 2015 WARMER AND MORE HUMID CONDITIONS WILL CONTINUE INTO SATURDAY.
THE APPROACHING COLD FRONT FROM THE NORTHWEST WILL BRING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS INTO EASTERN OKLAHOMA LATE TONIGHT.
903 PM MDT FRI MAY 29 2015 WEAK RIDGE THAT WAS OVER THE FORECAST AREA TODAY IS ALREADY GETTING FLATTENED DUE TO A WEAK DISTURBANCE MOVING THROUGH CENTRAL IDAHO AND WESTERN MONTANA WHERE A FEW SHOWERS AND THUNDERSTORMS ARE OCCURRING. OTHER AREAS SHOULD REMAIN DRY INTO SATURDAY WITH FLAT RIDGING OVER THE REGION.
655 PM CDT FRI MAY 29 2015 SURFACE MAP THIS AFTERNOON HAS A COLD FRONT DRAPED FROM WESTERN LAKE SUPERIOR THROUGH SOUTH CENTRAL MN. FOCUS OF SHOWERS/STORMS TIED MORE TOWARD POST FRONTAL/MID-LEVEL TROUGH PV- ADVECTION/850-700MB FRONTOGENESIS FORCING ACROSS NORTHWEST WI/SOUTHERN MN/EASTERN SD. LOOK FOR THE COLD FRONTAL BOUNDARY TO SLIDE SOUTHEAST ACROSS THE AREA. LOOK FOR DRYING/COOLER CONDITIONS THROUGH THE REMAINDER OF THE DAY AS CANADIAN HIGH PRESSURE BUILDS IN. HIGHS SATURDAY ARE ONLY EXPECTED TO TOP OFF IN THE LOWER/MIDDLE 60S. HIGH PRESSURE WILL SETTLE OVERHEAD SATURDAY NIGHT FOR MOSTLY CLEAR/CALM CONDITIONS.
1242 AM EDT SAT MAY 30 2015 BERMUDA HIGH WILL BEGIN PUSHING AWAY FROM THE REGION SATURDAY AS A WEAK LOW PRESSURE SYSTEM SLOWLY MOVES EASTWARD THROUGH THE CENTRAL US.
COVERAGE OF SHRA/TSRA WILL BE HIGHEST ARND MSL TOMORROW AS COLD FRONT APPROACHES FROM THE NW.
Trend has been to hold back western troughing a bit with upper level ridging remaining over the central CONUS.
CHATTANOOGA AIRPORT, TN 66 86 66 81 / 10 20 20 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 64 86 65 80 / 10 10 20 50 OAK RIDGE, TN 65 87 65 80 / 10 10 20 50 TRI CITIES AIRPORT, TN 62 85 62 78 / 10 20 20 60.
ENOUGH SHEAR DUE TO THE LOW LEVEL EAST SOUTHEAST FLOW HAS PROMPTED A TORNADO WATCH FOR FREMONT.
Believe that as the upper trof over MN continues to lift newd, the weak sfc fnt will gradually sag swd.
150 PM PDT WED JUN 3 2015 BELOW NORMAL TEMPERATURES AND BREEZY WINDS IN THE MOUNTAINS AND DESERTS WILL CONTINUE THROUGH THIS WEEKEND AS A LARGE UPPER-LEVEL LOW PRESSURE APPROACHES THE REGION.
HIGH PRESSURE WILL PROVIDE DRY AND SEASONABLE CONDITIONS. TEMPERATURES WILL CLIMB A FEW MORE DEGREES AND MOST LIKELY ONLY MAKE IT INTO THE LOW 70S.
150 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL BRING CLEARING SKIES TODAY, BEFORE ANOTHER FRONT MOVES ACROSS THE REGION ON THURSDAY WITH A CHANCE FOR A SHOWER OR A THUNDERSTORM. HIGH PRESSURE OVER NORTHERN NEW ENGLAND CONTINUES TO FILTER DRYER AIR IN FROM THE NORTHEAST. HIGH PRESSURE WILL KEEP THE WEATHER FAIR INTO EARLY THURSDAY, THOUGH MOISTURE WILL LINGER OVER THE SRN ZONES AND ADD TO THE CLOUD COVER. WILL DRIFT THROUGH THE CAROLINAS WHILE A WEAK TROF DIPS DOWN THROUGH LOWER ONTARIO.
354 PM EDT WED JUN 3 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL PROVIDE THE NORTH COUNTRY WITH DRY WEATHER AND MOSTLY CLEAR SKIES THROUGH THURSDAY.
127 PM EDT WED JUN 3 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL PROVIDE THE NORTH COUNTRY WITH DRY WEATHER AND MOSTLY CLEAR SKIES THROUGH THURSDAY.
CLOUDS MOVING ACROSS NORCAL OVERNIGHT AHEAD OF SHORT- WAVE TROUGH PRESENTLY MOVING ONTO THE COAST.
MODELS WERE IN GOOD AGREEMENT WITH AN AREA OF LOW PRESSURE AT THE SURFACE DEEPENING TODAY OVER EASTERN/SOUTHEASTERN COLORADO AS A COLD FRONT MOVES ACROSS NORTHWEST KANSAS DURING THE DAY. THIS SOLUTION WILL PLACE A COLD FRONT ACROSS WEST CENTRAL AND NORTH CENTRAL KANSAS BY LATE DAY. HAVE LOWERED THE CHANCE OF CONVECTION LATE TODAY BUT KEPT SOME ISOLATED THUNDERSTORMS POSSIBLE, MAINLY NORTH OF THE I-70 CORRIDOR WHERE COOLER MID LEVEL TEMPERATURES ARE EXPECTED. ANOTHER AREA OF CONVECTION IS EXPECTED TO DEVELOP DURING THE AFTERNOON OVER THE HIGHER TERRAIN OF NORTHEAST COLORADO. THE MOST AGGRESSIVE SOLUTION IS THE NMM WHICH ALLOWS CONVECTION BOTH FROM THE HIGHER TERRAIN OF COLORADO LATE IN THE DAY FEEDING INTO THE HIGHER ELEVATED CAPE AND VERY STEEP MID LEVEL LAPSE RATES INTO WESTERN KS.
439 PM CDT WED JUN 3 2015 AN UPPER RIDGE WILL GRADUALLY BUILD OVER THE SOUTH CENTRAL CONUS THROUGH LATE WEEK.
232 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL MOVE OFF THE EAST COAST TONIGHT. CLEAR SKIES THIS EVENING WILL GIVE WAY TO PATCHY CLOUDINESS OVERNIGHT AS MOISTURE RETURNS WITH LIGHT SOUTHERLY FLOW AROUND THE HIGH.
341 PM CDT WED JUN 3 2015 APPARENTLY JUST ENOUGH FORCING WITH THE UPPER LEVEL TROUGH APPROACHING FROM THE WEST TO KICK OFF AN AREA OF SHOWERS THIS AFTERNOON IN OUR WESTERN CWA AND WERE MOVING EAST. THIS WILL BE A WARMER NIGHT WITH MORE CLOUD COVER AND SLOWLY INCREASING LOW LEVEL MOISTURE. MINIMUM TEMPERATURES WILL BE IN THE LOWER 60S AT MOST LOCATIONS.
253 PM PDT WED JUN 3 2015 SHOWERS AND THUNDERSTORMS ARE EXPECTED THURSDAY AS LOW PRESSURE MOVES INTO CALIFORNIA. THE LOW WILL LINGER INTO THE WEEKEND WITH A CHANCE FOR SHOWERS AND THUNDERSTORMS EACH DAY.
POPS FOR THIS EVENING RELFECT THE LOWER MOS POPS WITH A MENTION OF AREAL COVERAGE PREFERRED TIL MIDNIGHT. EXCEPT FOR THE HIGHER TERRAIN AND ESPECIALLY ALONG THE TN-NC LINE AGAIN. UPPER LOW WILL FINALLY GET A KICK OUT OF THE AREA AND MOVE OFF TO OUR EAST AND EVENTUALLY INTO THE ATLANTIC.
627 PM EDT WED JUN 3 2015 A COLD FRONT WILL STALL OVER THE AREA TONIGHT INTO THURSDAY BEFORE SLOWLY SHIFTING OFF THE COAST AND DISSIPATING LATE WEEK. ANOTHER WEAK COLD FRONT WILL MOVE TOWARD THE AREA OVER THE WEEKEND. A TROUGH OF LOW PRESSURE WILL DEVELOP JUST INLAND AND REMAIN IN PLACE FOR AT LEAST THE FIRST HALF OF THE WORK WEEK. A CLOSED UPPER LOW AND ASSOCIATED VORT MAX OVER THE SOUTHERN APPALACHIANS WILL EDGE EASTWARD INTO THE WESTERN CAROLINAS. THE SLOWLY MOVING UPPER TROUGH THAT HAS BEEN JUST WEST AND NORTHWEST OF THE AREA FOR THE PAST SEVERAL DAYS WILL MOVE OVER THE REGION. THE PRESENCE OF THIS UPPER TROUGH. THE UPPER TROUGH AXIS FINALLY BEGINS TO MOVE EAST OF THE AREA. CLOSER TO THE UPPER LOW.
An upper level ridge will continue to build into the area, with rain chances across the region near zero and temperatures near normal. Highs today will be slightly warmer than what we saw yesterday, in the upper 80s to lower 90s.
311 PM CDT WED JUN 3 2015 DRY CONDITIONS HAVE PREVAILED ACROSS THE FORECAST AREA ON THE WESTERN SIDE OF AN UPPER TROUGH OVER THE SOUTHERN APPALACHIANS.
HIGH PRESSURE OVER WESTERN NORTH DAKOTA WILL MOVE EAST TONIGHT WITH LIGHT WINDS AND CLEAR TO PARTLY CLOUDY SKIES EXPECTED MOST AREAS. TROUGH TRIES TO ENCROACH INTO WESTERN NORTH DAKOTA. MID TO UPPER LEVEL RIDGING TRIES TO HANG ON THROUGH THURSDAY AND THERE ARE VARYING SOLUTIONS ON HOW ANY CONVECTION WILL TRANSLATE FROM WESTERN INTO CENTRAL NORTH DAKOTA.
332 PM PDT WED JUN 3 2015 UPPER TROUGH DROPPING SOUTH ALONG THE COAST WILL TOUCH OFF SCATTERED SHOWERS AND THUNDERSTORMS OVER THE COASTAL RANGE AND NORTHERN SIERRA THIS AFTERNOON AND EVENING. UPPER TROUGH WILL CLOSE INTO LOW CENTER JUST SOUTH OF THE BAY AREA TOMORROW. AS THIS HAPPEN DEEPER MOISTURE WILL WRAP AROUND THE LOW INTO NORCAL. THIS COUPLED WITH INCREASING FORCING WILL LEAD TO GREATER COVERAGE OF SHOWER AND THUNDERSTORM ACTIVITY MAINLY OVER THE HIGHER TERRAIN.
526 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TONIGHT AND THURSDAY.
1122 AM MDT WED JUN 3 2015 A PROMINENT TROUGH WILL AMPLIFY ALONG THE CALIFORNIA COAST TODAY AND EVENTUALLY FORMS A CLOSED CIRCULATION OVER SAN FRANCISCO AND MONTEREY AREA. LOW PRESSURE DEEPENING ALONG THE WEST COAST AND BOTTOMING OUT NEAR SOUTHERN CALIFORNIA WILL BECOME A BIG PLAYER IN OUR WEATHER FOR THIS UPCOMING WEEKEND. THIS LOW IS EXPECTED TO TAP TROPICAL MOISTURE FROM NOW TROPICAL STORM ANDRES AND HURRICANE BLANCA IN THE EASTERN PACIFIC.
304 PM CDT WED JUN 3 2015 OVERALL VERY QUIET WEATHER PATTERN IN STORE THIS WEEK INTO THE WEEKEND AS UPPER RIDGE CONTINUES TO BUILD IN FROM THE SW THE NEXT SEVERAL DAYS. AS THE UPPER RIDGE STRENGTHENS OVER THE SRN PLAINS AND UPPER LOW GRADUALLY DRIFTS E OVER THE ERN CONUS.
/ISSUED 140 PM CDT Wed Jun 3 2015/ An upper level ridge of high pressure will build over west Texas and southeast New Mexico through the next seven days. Near normal high temperatures are expected the next several days despite the presence of the upper ridge per forecast 850 millibar temperatures and upslope flow continuing.
138 PM EDT WED JUN 3 2015 UNSETTLED CONDITIONS WILL PERSIST THROUGH THE END OF THE WEEK AS A STALLED FRONT AND UPPER LOW LINGER OVER THE REGION. RAIN CHANCES WILL CONTINUE OVER THE WEEKEND AS A WEAK COLD FRONT DROPS IN FROM THE NORTH.
130 PM EDT WED JUN 3 2015 HIGH PRESSURE OVER THE EASTERN GREAT LAKES WILL DRIFT EAST AND MOVE OFF THE NEW ENGLAND COAST BY THURSDAY.
Expect a weak surface gradient over the Ohio Valley on Thursday, with upper ridging building in from the SW. June warmth should finally arrive, with temps running on the high side of climo. However the forecast remains on the cooler end of the range of MOS guidance, and more in line with the raw numbers. Overall, will keep diurnal ranges on the narrower side given more of a dirty ridge. Will carry POPs for isolated/scattered afternoon T-storms from the Bluegrass region to Lake Cumberland given the lower convective temps. Any afternoon pop-ups should fade quickly with the loss of heating, and Thursday night should be partly cloudy with temps just on the high side of normal for early June.
238 PM EDT WED JUN 3 2015 A MID/UPPER LEVEL LOW TO THE SOUTH.
402 PM EDT WED JUN 3 2015 HIGH PRESSURE OVER THE REGION WILL CONTINUE TO PROVIDE DRY WEATHER AND MOSTLY CLEAR SKIES WITH MODERATING TEMPERATURES THROUGH THURSDAY NIGHT.
/ISSUED 1126 AM CDT WED JUN 3 2015/ UPPER RIDGE CONTINUES TO INCREASE ITS INFLUENCE ON THE REGION.
205 PM EDT WED JUN 3 2015 A FEW SHOWERS MAY DEVELOP THIS AFTERNOON IN THE CIRCULATION AROUND AN UPPER LOW CENTERED OVER THE SOUTHERN APPALACHIANS.
300 PM CDT WED JUN 3 2015 A PERSISTENT FORECAST IS EXPECTED FOR AT LEAST THE NEXT 6 DAYS AS UPPER LEVEL RIDGING DOMINATES THE REGION. THE UPPER LEVEL RIDGE IS BUILDING IN FROM THE SOUTHWEST AND WILL BECOME CENTERED OVER THE REGION OVER THE WEEKEND. THE UPPER LEVEL RIDGE IS FORECAST TO MOVE BACK TO THE SOUTHWEST AS AN UPPER LEVEL TROUGH DEVELOPS OVER THE PLAINS.
WEAK LOW PRESSURE ALOFT WILL PREVAIL OVER THE REGION TONIGHT. HIGH PRESSURE ALOFT WILL BEGIN BUILDING INTO THE AREA ON THURSDAY.
NAM SHOWS THE UPPER AIR PATTERN THEN GOES TO THE RIDGE BEING FLATTENED BY A TROUGH MOVING INTO THE NORTHERN PLAINS ON SAT. THIS TROUGH DEEPENS AS IT MOVES THROUGH THE GREAT LAKES REGION 12Z MON. A SFC COLD FRONT MOVES THROUGH THE AREA ON MON AND MOVES TO THE SOUTH OF THE GREAT LAKES AND STALLS OUT TUE INTO WED. WITH THE LOW CONFIDENCE. THE TROUGH WILL CONTINUE TO SAG SOUTHEAST THURSDAY INTO THURSDAY NIGHT.
AS WILL THE TRAILING COLD FRONT. AND MAY NEED TO LOWER MAX TEMPS IN SOME PLACES ONCE THE EXACT SPEED TO THE COLD FRONT BECOMES MORE CLEAR. HIGH PRESSURE ALONG WITH A DRY/COOL AIRMASS WILL BE IN PLACE.
/ISSUED 425 AM CDT WED JUN 3 2015/ THE CURRENT WEATHER PATTERN CONTINUES TO BE DOMINATED BY AN AMPLIFYING UPPER-LEVEL RIDGE EXTENDING FROM NORTHERN MEXICO INTO THE NORTHERN HIGH PLAINS. WITH DEEPENING UPPER LOWS OVER THE WEST AND EAST COASTS. DRY AND WARM SOUTHERLY LOW-LEVEL WINDS AND THE THERMAL RIDGE WILL PUSH AFTERNOON HIGH TEMPS INTO THE UPPER 80S/LOW 90S INTO THE WEEKEND FOR THE PANHANDLES. AS MODELS CURRENTLY SUGGEST A WEAKENING OF THE RIDGE IN ADVANCE OF HURRICANE BLANCA.
253 PM PDT WED JUN 3 2015 CORRECTED SECOND PARAGRAPH SHORT TERM SHOWERS AND THUNDERSTORMS ARE EXPECTED THURSDAY AS LOW PRESSURE MOVES INTO CALIFORNIA. THE LOW WILL LINGER INTO THE WEEKEND WITH A CHANCE FOR SHOWERS AND THUNDERSTORMS EACH DAY.
338 PM CDT WED JUN 3 2015 AN AREA OF HIGH PRESSURE BUILDING INTO THE REGION WILL BRING CLEARING SKIES. ALONG WITH COOLER TEMPERATURES TONIGHT. THE HIGH PRESSURE SHOULD KEEP A MAJORITY OF THE CWA DRY UNTIL THE AFTERNOON HOURS ON THURSDAY.
255 PM EDT WED JUN 3 2015 A MID/UPPER LEVEL LOW TO THE SOUTH.
DRIER AIR ALOFT HAS COME IN BEHIND MID LEVEL TROUGH AXIS THAT HAS SHIFTED TO THE EAST OF THE AREA. A WEAK LOW LEVEL TROUGH IS STILL FORECAST TO EXTEND FROM THE YUCATAN TO THE FLORIDA PENINSULA. CUT-OFF UPPER LOW CENTERED OVER THE CAROLINAS SLOWLY FILLS AS IT TRACKS EASTWARD AND OFF THE MID ATLC COAST SUN. WEAK TROUGHING ASSOCIATED WITH THE CUT-OFF LOW WILL REMAIN OVER FLORIDA. WEAK IMPULSES ALOFT AND ADEQUATE MOISTURE AHEAD OF THE TROUGH WILL BE ENOUGH TO PRODUCE DAILY CHANCES FOR SHOWERS AND STORMS. (PREVIOUS DISCUSSION) UPPER LEVEL TROUGHING CONTINUES TO LIFT NORTHEAST AND IS REPLACED BY AN UPPER LEVEL RIDGE. PRESSURE GRADIENT STILL LOOKS RATHER WEAK AS AN INVERTED TROUGH IS SHOWN EXTENDING FROM THE YUCATAN TO THE FLORIDA PENINSULA. LITTLE CHANGE WITH SUBTROPICAL RIDGE HAVING A WEAKNESS NEAR THE FLORIDA PENINSULA.
358 PM CDT WED JUN 3 2015 UPPER 5H RIDGING ENCOMPASSING THE STATE TODAY.
Believe that as the upper trof over MN continues to lift newd, the weak sfc fnt will gradually sag swd. With upper air pattern becoming more amplified and upper ridge building into the region, warming trend is expected to continue thru this weekend. Mdls are in an agreement bringing an upper trof and associated cdfnt swd into the region on Mon, possibly thru the CWA by Tues. Have therefore kept low PoPs behind the fnt but did trend cooler for Tues and esp on Wed.
/ISSUED 1121 AM CDT WED JUN 3 2015/ UPPER LOW IS SITUATED OVER EAST TN THIS MORNING WITH UPPER RIDGING BUILDING INTO THE SOUTHERN PLAINS. /ISSUED 235 AM CDT WED JUN 3 2015/ LOW CLOUDS ASSOCIATED WITH AN UPPER LEVEL LOW PRESSURE SYSTEM REMAIN OVER PORTIONS OF WEST TENNESSEE IN AREAS MAINLY NEAR THE TENNESSEE RIVER THIS MORNING. THE UPPER LOW IS NOW LOCATED OVER EAST TENNESSEE. THE MIDSOUTH WILL REMAIN STUCK BETWEEN THE BROAD UPPER TROF IN THE EASTERN UNITED STATES AND THE UPPER RIDGE OVER TEXAS.
THE INSTABILITY WILL CONTINUE TO BUILD THURSDAY MORNING AND AFTERNOON AS SOUTHWEST WINDS PUMP MORE WARM AIR INTO THE REGION DUE TO ANOTHER LOW PRESSURE SYSTEM APPROACHING FROM THE SOUTHWEST. RIDGING ALOFT WILL ALSO BUILD INTO THE AREA.
131 PM CDT WED JUN 3 2015 ISOLD CONVECTION HAS DEVELOPED ALONG SAND MOUNTAIN, NEAR AN INVERTED TROF WHICH EXTENDED NORTH FROM THE GULF OF MEXICO. THE AIR WAS MUCH MORE STABLE WEST OF THE TROF IN NWRN AL AND SRN TN. WATER VAPOR IMAGERY SHOWED THE UPPER LOW MEANDERING OVER THE SRN SMOKY MOUNTAINS, WITH DRY AND SUBSIDING AIR W OF THE CIRCULATION.
220 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL SHIFT OFFSHORE TONIGHT AND THURSDAY.
MODELS WERE IN GOOD AGREEMENT WITH AN AREA OF LOW PRESSURE AT THE SURFACE DEEPENING TODAY OVER EASTERN/SOUTHEASTERN COLORADO AS A COLD FRONT MOVES ACROSS NORTHWEST KANSAS DURING THE DAY. THIS SOLUTION WILL PLACE A COLD FRONT ACROSS WEST CENTRAL AND NORTH CENTRAL KANSAS BY LATE DAY. HAVE LOWERED THE CHANCE OF CONVECTION LATE TODAY BUT KEPT SOME ISOLATED THUNDERSTORMS POSSIBLE, MAINLY NORTH OF THE I-70 CORRIDOR WHERE COOLER MID LEVEL TEMPERATURES ARE EXPECTED. ANOTHER AREA OF CONVECTION IS EXPECTED TO DEVELOP DURING THE AFTERNOON OVER THE HIGHER TERRAIN OF NORTHEAST COLORADO.
309 PM CDT WED JUN 3 2015 UPPER LOW CURRENTLY OVER THE TENNESSEE-NORTH CAROLINA BORDER. AFTERNOON DEW POINTS AWAY FROM MARINE INFLUENCES ARE IN THE LOWER AND MIDDLE 60S.
LOW PRESSURE IN CALIFORNIA WILL ALLOW SCATTERED THUNDERSTORMS TO DEVELOP OVER NORTHWEST NEVADA THURSDAY AFTERNOON.
1234 PM CDT WED JUN 3 2015 FOR 18Z TAFS /ISSUED 935 AM CDT WED JUN 3 2015/ OLD CDFNT WAS WELL TO OUR SOUTH WHILE THE UPPER LOW CONTINUES TO SPIN OVER ERN TN. 07 VFR CIGS SHOULD PREVAIL FOR MOST OF THE FORECAST WITH MVFR CIGS LIKELY AT KMSL UNTIL 19Z AS AN UPPER LOW FINALLY MOVES OFF TO THE NE.
122 PM CDT WED JUN 3 2015 HIGH PRESSURE WAS SITUATED OVER SOUTHERN SASKATCHEWAN INTO WESTERN NORTH DAKOTA EARLY THIS AFTERNOON. CLOUD SHIELD OVER WESTERN NORTH DAKOTA IS RAPIDLY DISSIPATING DUE TO THE HIGH PRESSURE AND DRIER ATMOSPHERE. HAVE MAINTAINED THE LOWER CHANCES SOUTHWEST WITH THE EXPECTATION THAT IT WOULD BE AFTER MIDNIGHT WEDNESDAY NIGHT THAT STORMS MOVE IN. THE PERTINENT FEATURE FOR THE NORTHERN PLAINS IS AN H500 TROUGH OVER THE SOUTHWEST US WHICH FORMS THE SOUTHERN EXTENT OF A SOMEWHAT FRACTURED REX BLOCK ACROSS WESTERN NORTH AMERICA.
129 PM EDT WED JUN 3 2015 HIGH PRESSURE SLIDING OFF THE NEW ENGLAND COAST WILL BRING THE RETURN OF LIGHT SOUTHERLY FLOW ACROSS WESTERN AND NORTH CENTRAL NEW YORK OVER THE NEXT FEW DAYS.
347 PM CDT WED JUN 3 2015 A CLOUDY DAY ACROSS THE NORTHLAND AS A WEAK LOW PRESSURE SYSTEM MOVES EAST ACROSS CENTRAL MINNESOTA INTO WISCONSIN. SOUTH TO SOUTHEAST AHEAD OF THE LOW AND GRADUALLY BECOMING NORTHWESTERLY BEHIND IT. CAUSING THE COOLER OVERNIGHT LOWS BY THE LAKE.
204 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL BUILD IN BRIEFLY FROM THE NORTH TODAY BRINGING DRIER CONDITIONS.
144 PM EDT WED JUN 3 2015 HIGH PRESSURE BUILDING INTO THE REGION WILL PROVIDE THE NORTH COUNTRY WITH DRY WEATHER AND MOSTLY CLEAR SKIES THROUGH THURSDAY.
/ISSUED 544 AM CDT WED JUN 3 2015/ HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA THROUGH THE NEXT 24 HOURS.
318 PM EDT WED JUN 3 2015 HIGH PRESSURE BUILDS TONIGHT AND THURSDAY.
THE CENTER OF THE LOW LEVEL ANTICYCLONE OVER ERN ONTARIO WILL SLOWLY MOVE EAST DURING THE SHORT TERM AS THE MID/UPPER LEVEL FLOW ACROSS THE NRN PLAINS AND GREAT LAKES BECOMES MORE ZONAL. THIS WILL CAUSE A VEERING OF THE LOW LEVEL WIND FIELD TOWARD THE SOUTHEAST TODAY. ADVECTING A SLIGHTLY WARMER AND MORE MOIST AIRMASS INTO THE FORECAST AREA. WITH SIMILAR MIXING HEIGHTS EXPECTED TODAY AS YESTERDAY BUT WITH THE LOW LEVEL THERMAL ADVECTION ADDING A COUPLE DEGREES TO 925-850MB TEMPS. DAYTIME HIGHS WILL NUDGE UPWARD INTO THE LOW TO MID 70S. MIN TEMPS WILL BE SEVERAL DEGREES WARMER THAN THE LAST COUPLE NIGHT. A BRIEF AFTERNOON SHOWER IN A REGION OF INLAND TROUGHING IS NOT OUT OF THE QUESTION, BUT A MENTION OF WX THURSDAY INTO THURSDAY NIGHT IS NOT WARRANTED ATTM.
355 PM EDT WED JUN 3 2015 HIGH PRESSURE WILL MOVE OFF THE EAST COAST TONIGHT. CLEAR SKIES THIS EVENING WILL GIVE WAY TO PATCHY CLOUDINESS OVERNIGHT AS MOISTURE RETURNS WITH LIGHT SOUTHERLY FLOW AROUND THE HIGH.
650 PM EDT WED JUN 3 2015 HIGH PRESSURE BUILDS TONIGHT AND THURSDAY.
140 PM CDT Wed Jun 3 2015 An upper level ridge of high pressure will build over west Texas and southeast New Mexico through the next seven days. Near normal high temperatures are expected the next several days despite the presence of the upper ridge per forecast 850 millibar temperatures and upslope flow continuing.
A TROUGH DEEPENS ALONG THE CALIFORNIA COAST THROUGH THE DAY AND CLOSES NEAR SAN FRANCISCO. THE LOW SAGS DOWN THE COAST THURSDAY NIGHT.
111 PM EDT SUN JUN 7 2015 A WARM FRONT CROSSES TONIGHT. A COLD FRONT ARRIVES LATE MONDAY.
A COLD FRONT WILL APPROACH FROM THE NORTH A LONG WAVE TROF BARRELS ITS WAY ACROSS THE GREAT LAKES. PRE FRONTAL CONVECTION WILL BREAK OUT AND AS THE FRONT NEARS THE LOWER OHIO RIVER VALLEY DURING THE DAY ON MONDAY. SHORT WAVE ENERGY ROUNDING THE BASE OF THE MEAN LONG WAVE TROF WILL USHER THE FRONT ON TO PASSAGE MONDAY NIGHT.
THE UPPER LEVEL LOW PRESSURE SYSTEM OVER SOUTHERN UTAH WILL WEAKEN SIGNIFICANTLY TODAY. HIGH PRESSURE ALOFT WILL START BUILDING OVER UTAH ON MONDAY BRINGING DRIER CONDITIONS TO THE REGION FOR THE EARLY PORTION OF THE WEEK. UPPER LEVEL LOW OVER SOUTHERN UTAH IS FILLING AND SHEARING OUT TODAY. DEEP LAYER SHEAR IS VERY MINIMAL IN VICINITY OF SHEARING UPPER LOW WHICH WILL LIKELY BE THE AXIS ALONG WHICH THE GREATEST COVERAGE OF CONVECTION DEVELOPS.