Aikyam-Lab/Synoptic-Bench huggingface dataset:
DRIER AND COOLER AIR WILL PUSH IN TONIGHT WITH CLEAR SKIES EXPECTED OVERNIGHT. LONGER TERM CONCERNS ARE TIMING OF UPPER LEVEL SHORT WAVE TROUGHS AND ATTENDANT SURFACE FRONTAL PASSAGES.
1109 AM EDT SUN MAY 3 2015 DRY HIGH PRESSURE WILL CONTINUE TO RIDGE INTO THE FORECAST AREA THROUGH THE MIDDLE OF THE WEEK. HIGH PRESSURE MOVING INTO THE ATLANTIC WILL CONTINUE TO RIDGE INTO THE FORECAST AREA THROUGH TONIGHT. LEANED TOWARD THE COOLER GUIDANCE TONIGHT BECAUSE OF THE RECENT BIAS. THE GFS AND ECMWF HAVE SURFACE RIDGING LINGERING THROUGH THE MEDIUM-RANGE PERIOD. THE MODELS HAVE BEEN CONSISTENT WITH LOW PRESSURE DEVELOPING OFF THE SOUTHEAST COAST.
CHATTANOOGA AIRPORT, TN 80 56 81 57 / 0 0 10 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 78 55 80 57 / 0 0 10 0 OAK RIDGE, TN 77 54 80 56 / 0 0 10 0 TRI CITIES AIRPORT, TN 74 50 78 53 / 0 0 10 10.
4 INCHES MAINLY IN THE LOWER LEVELS BELOW 750MB AND DEEPER LAYER OF DRY AIR ALOFT. THE CLOUD COVER WILL ALSO BE ON THE INCREASE TODAY AND WILL PREVAIL KEEPING TEMPERATURES IN THE LOW TO MID 80S ACROSS THE RGV. AS A HIGHER CLOUD DECK HAS INSULATED THE LOWER LAYERS. H5 RIDGE FINALLY BREAKS DOWN ACROSS TEXAS DURING THE NEXT 24 HOURS AS MIDLEVEL TROUGH SWEEPS ACROSS THE DESERT SOUTHWEST. INCREASING GRADIENT BETWEEN NE GULF RIDGE AND LOW PRESSURE DEEPENING ACROSS KANSAS WILL BRING BREEZY SOUTHEAST WINDS TO THE REGION.
1205 PM EDT SUN MAY 3 2015 HIGH PRESSURE WILL BRING DRY AND WARM WEATHER TODAY.
/ISSUED 410 AM CDT SUN MAY 3 2015/ EARLY MORNING SFC ANALYSIS SHOWS HIGH PRESSURE CENTERED OVER THE TENNESSEE VALLEY KEEPING A LOW-LEVEL SRLY FLOW IN PLACE OVER THE REGION. MEANWHILE WATER VAPOR IMAGERY SHOWS WEAK RIDGING IN PLACE FROM THE WRN GULF UP THROUGH THE SRN PLAINS. ONE MORE DRY DAY LOOKS ON TAP FOR THE FORECAST AREA AS THE RIDGE ALOFT HOLDS FIRM. SEASONAL TEMPS IN THE LOWER 80S SHOULD BE THE RULE FOR THE AFTERNOON. OVER THE EARLY PART OF THE COMING WEEK THE NEXT PACIFIC STORM SYSTEM ALOFT MOVING ASHORE ALONG THE WEST COAST WILL GIVE A PUSH TO THE RIDGE. WILL LINGER THROUGH THE PERIOD WITH HIGH PRESSURE CENTERED OVER THE SERN CONUS AND OFF THE SRN ATLANTIC COAST.
1123 AM EDT SUN MAY 3 2015 HIGH PRESSURE CENTERED OVER THE SOUTHERN APPALACHIANS WILL MOVE EAST TODAY AND OFF THE CAROLINA COAST ON MONDAY.
SURFACE ANALYSIS HAD HIGH PRESSURE CENTERED OVER THE CAROLINA COAST RIDGING BACK OVER THE GULF COAST STATES. MOST SITES WILL REACH THE LOWER 80S. WITH THE RIDGE SHIFTING EAST.
713 AM EDT SUN MAY 3 2015 A LARGE RIDGE OF HIGH PRESSURE WILL GRADUALLY MOVE OFF THE COAST TODAY. THE HIGH WILL INFLUENCE THE WEATHER THROUGH MID WEEK. LOW PRESSURE WILL DEVELOP NEAR THE BAHAMAS MID WEEK THEN DRIFT ERRATICALLY OFF THE SOUTHEAST COAST THROUGH THE END OF THE WEEK. CLOSER TO THE COAST HIGHS MAINLY IN THE LOW TO MID 70S. OR EVEN COOLER WHERE LIGHT ONSHORE FLOW PREVAILS OVER COLD SOUND/OCEAN WATER TEMPS.
708 AM EDT SUN MAY 3 2015 HIGH PRESSURE BUILDS OVER THE AREA TODAY.
TEMPS AT 1030 AM HAVE WARMED INTO THE UPPER 60S TO MID 70S AND WARM HIGHS IN THE LOWER 80S EXPECTED BY 4 PM TODAY ACROSS MUCH OF THE AREA. CLUSTERS OF STORMS NEAR A WEAK BOUNDARY LOOKING BORDERLINE AT THIS POINT, BUT IN AN AREA OF CONTINUING WARM AIR ADVECTION PROVIDING POTENTIAL INSTABILITY JUST SOUTH OF THE BOUNDARY THAT WILL SLOWLY BE SETTLING SOUTH INTO THE WARMER AND MORE BUOYANT AIR. A RIDGE BEGINS TO BUILD INTO THE MIDWEST FROM THE SOUTHEAST. WITH ENOUGH SUBSIDENCE IN THE REGION OF THE RIDGE AXIS TO ERODE SHOWER CHANCES AT LEAST TUES NIGHT THROUGH WED NIGHT.
SOUTHERLY FLOW FROM THE BACK SIDE OF THE HIGH WILL HELP INCREASE TEMPS TODAY INTO THE UPPER 70S TO LOWER 80S! SAW A QUICK RISE IN TEMPS THIS MORNING. AN UPPER LEVEL RIDGE SPANS FROM TX THROUGH THE GULF COAST AND WNW FLOW WILL STREAM SOME CLOUD COVER INTO THE AREA AGAIN TODAY.
THE AFTERNOON POPS OVER THE MOUNTAINS WERE FINE AND NO MENTION OF THUNDER MADE SENSE GIVEN THE LOW CAPES ON THE SREF. TEMPERATURES TODAY WILL BE A GOOD 10 DEGREES COOLER AS A RESULT OF THE FRONT THAT MOVED THROUGH LAST EVENING. AN UPPER LOW AND TROUGH APPROACH THE PACIFIC NORTHWEST COAST LATE IN THE DAY MONDAY. THIS WILL ALLOW THE FLOW TO BUCKLE SOMEWHAT RESULTING IN WEAK RIDGING BUILDING ACROSS OUR AREA. WETTER AND COOLER.
850 AM EDT SUN MAY 3 2015 HIGH PRESSURE WILL BRING DRY AND WARM WEATHER TODAY.
735 AM EDT SUN MAY 3 2015 HIGH PRESSURE CENTERED OVER THE SOUTHERN APPALACHIANS WILL MOVE EAST TODAY AND OFF THE CAROLINA COAST ON MONDAY.
AS A HIGHER CLOUD DECK HAS INSULATED THE LOWER LAYERS. H5 RIDGE FINALLY BREAKS DOWN ACROSS TEXAS DURING THE NEXT 24 HOURS AS MIDLEVEL TROUGH SWEEPS ACROSS THE DESERT SOUTHWEST. INCREASING GRADIENT BETWEEN NE GULF RIDGE AND LOW PRESSURE DEEPENING ACROSS KANSAS WILL BRING BREEZY SOUTHEAST WINDS TO THE REGION.
1104 AM EDT SUN MAY 3 2015 HIGH PRESSURE THIS WEEKEND. HIGH PRESSURE DRIFTS TO THE MID ATLANTIC COAST. ANOTHER WEAK AND DRY TROUGH AXIS ALOFT MAY BRING SCATTERED MID LEVEL MOISTURE/CLOUDS TO THE TUG FORK VALLEY.
1002 AM EDT SUN MAY 3 2015 A LARGE RIDGE OF HIGH PRESSURE WILL GRADUALLY MOVE OFF THE COAST TODAY. THE HIGH WILL INFLUENCE THE WEATHER THROUGH MID WEEK. LOW PRESSURE WILL DEVELOP NEAR THE BAHAMAS MID WEEK THEN DRIFT ERRATICALLY OFF THE SOUTHEAST COAST THROUGH THE END OF THE WEEK. CLOSER TO THE COAST HIGHS MAINLY IN THE LOW TO MID 70S. OR EVEN COOLER WHERE LIGHT ONSHORE FLOW PREVAILS OVER COLD SOUND/OCEAN WATER TEMPS.
PRESSURE GRADIENT WILL SLOWLY INCREASE ACROSS THE REGION TODAY AS HIGH PRESSURE CENTER SLIDES OFF THE CAROLINA COAST AND STRENGTHENS INTO TONIGHT.
1003 AM EDT SUN MAY 3 2015 HIGH PRESSURE BUILDS OVER THE AREA TODAY.
WEAK HIGH PRESSURE WILL REMAIN OVER THE AREA TODAY. THE HIGH WILL MOVE OFF THE COAST ON MONDAY WITH SOUTHERLY RETURN FLOW BRINGING ABOVE NORMAL TEMPERATURES FOR THE UPCOMING WORK WEEK.
1011 AM EDT SUN MAY 3 2015 HIGH PRESSURE OVER THE SOUTHERN APPALACHIANS WILL DRIFT EAST AND OFF THE CAROLINA COAST TONIGHT. A DEVELOPING SOUTHWESTERLY FLOW WILL LEAD TO WARMER TEMPERATURES THAT WILL CONTINUE THROUGH AT LEAST THE MIDDLE OF THE UPCOMING WEEK.
929 AM EDT SUN MAY 3 2015 HIGH PRESSURE WILL MOVE TO THE MID ATLANTIC COAST TODAY WITH BOUNDARY LAYER WINDS SHIFTING TO THE EAST ACROSS THE FLORIDA PENINSULA. HIGH PRESSURE TO THE NORTH OF THE REGION COMBINED WITH A REMNANT FRONTAL BOUNDARY SOUTH OF FLORIDA WILL CONTINUE A RATHER TIGHT PRESSURE GRADIENT ACROSS THE FLORIDA PENINSULA WITH BREEZY EAST WINDS OF 10 TO 15 MPH WITH HIGHER GUSTS.
87 /ISSUED 636 AM CDT SUN MAY 3 2015/ HIGH PRESSURE WILL BE IN CONTROL THROUGH THE ENTIRE WEEK WITH UPPER HEIGHT RISES AND A GRADUAL WARMING TREND. A CLOSED UPPER LOW OFF THE FLORIDA/GEORGIA COAST WILL KEEP ALABAMA ON THE WARM AND SUBSIDENCE SIDE OF THIS SYSTEM.
/ISSUED 339 AM CDT FRI AUG 28 2015/ OUR REGION REMAINS SANDWICHED BETWEEN THE UPPER RIDGE EXTENDING FROM THE DESERT SW INTO THE CENTRAL PLAINS. AND AN UPPER TROF OVER THE ERN U. A WEAK DISTURBANCE EDGING AROUND THE ERN PERIPHERY OF THE RIDGE WILL BRING A COLD FRONT INTO OUR REGION BY LATE TONIGHT/EARLY SATURDAY MAINLY FOR AREAS ALONG AND N OF I-20. A WEAK UPPER LEVEL LOW WILL DEVELOP AS THE ERN U.
TEMPERATURES WILL REMAIN SEVERAL DEGREES ABOVE NORMAL TODAY AS A RIDGE OF HIGH PRESSURE LINGERS OVER THE REGION. AND LOCALLY BREEZY CONDITIONS ARE EXPECTED AS A LOW PRESSURE SYSTEM IMPACTS THE REGION. THE UPPER LEVEL RIDGE OVER THE WESTERN US CONTINUES TO BRING TEMPERATURES AROUND 5-10 DEGREES ABOVE CLIMO ACROSS CENTRAL CALIFORNIA. TODAY WILL BE SIMILAR OR EVEN A DEGREE OR SO WARMER THAN YESTERDAY UNDER THE WARM SIDE OF THE RETREATING RIDGE.
1122 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES AND OHIO VALLEY WILL DRIFT EAST TODAY. THIS WILL ALLOW WEAK LOW PRESSURE TO TRACK EAST FROM THE CENTRAL PLAINS TO THE CENTRAL LAKES ON SATURDAY NIGHT. HIGH PRESSURE CENTERED OVER WESTERN NY WILL SLOWLY DRIFT EASTWARD TODAY. HIGH PRESSURE WILL CONTINUE MOVING EASTWARD OVERNIGHT ALLOWING A WEAK WARM FRONT TO LIFT INTO OHIO. THIS INCREASE IN MOISTURE AND AN APPROACHING AREA OF LOW PRESSURE MAY ALLOW FOR SOME SCATTERED THUNDERSTORMS DEVELOPMENT ACROSS THE WESTERN HALF OF THE REGION.
THE MORE SOUTHERLY COMPONENT IN THE LOW AND MID LEVELS HAS KEPT SCATTERED THUNDERSTORMS CURRENTLY OVER THE COASTAL WATERS FROM MOVING ONSHORE LIKE YESTERDAY MORNING.
UPSTREAM WIND FIELD IS QUITE CHAOTIC AND HARD TO TELL WHERE ANY TROUGH IS LOCATED. STARTING IN EAST CENTRAL ND FROM MID AFTERNOON AND SPREADING EASTWARD ALONG AN EAST-WEST ORIENTED TROF AXIS INTO NORTHWEST MINNESOTA INTO THE EARLY EVENING. MORE STABLE H5 RIDGE BUILDING IN ALOFT. TEMPERATURES OVERALL WILL BE A BIT WARMER THAN SEASONAL NORMALS. WITH A WARM H5 RIDGE ALOFT AND LIGHT SOUTHERLY WINDS AT THE SURFACE. EXPECT SEASONABLY WARM AND DRY CONDITIONS WITH HIGH TEMPERATURES RANGING FRM THEMID 80S IN CENTRAL MINNESOTA LAKES COUNTRY TO THE LOWER 90S IN THE DEVILS LAKE BASIN.
HIGH PRESSURE WILL BRING A WARMING AND DRYING TREND THROUGH SATURDAY. A WEAK COLD FRONT WILL CROSS THE AREA SATURDAY NIGHT. MORNING SATELLITE AND H5 ANALYSIS PLACE THE AXIS OF A MID LEVEL RIDGE BISECTING UTAH SOUTH TO NORTH. THE PREVIOUSLY DEEP CLOSED LOW OFF THE NORCAL COAST IS PHASING TOWARDS AN OPEN WAVE AS A DEEPER LOW OVER BRITCOL RELOADS THE MEAN LONG WAVE OVER THE EASTERN PACIFIC. SAID SHORT WAVE WILL LIFT THROUGH THE PACNW OVER THE NEXT 36 HOURS DISPLACING THE RIDGE AND ASSOCIATED AXIS EAST OF THE AREA TOMORROW ALLOWING DEEP SOUTHWESTERLY FLOW TO RAMP UP ACROSS THE EASTERN GREAT BASIN. WITH A MEAN TROUGH OVER THE PACIFIC NORTHWEST. AND A MILD SOUTHWESTERLY FLOW OVER THE GREAT BASIN OUT AHEAD OF THIS TROUGH.
630 AM CDT FRI AUG 28 2015 PRIMARY CHALLENGE TODAY WILL BE RAINFALL AMOUNTS AS A STRONG UPPER TROUGH MOVES ACROSS THE UPPER MS RIVER VALLEY. 08Z WATER VAPOR LOOP SHOWS A STRONG TROUGH MOVING INTO SOUTHWEST MN WITH A LARGE MOISTURE PLUME EXTENDING FROM NORTHEAST KS INTO SOUTH-CENTRAL MN. EXPECT ONE MORE COOL DAY ON SATURDAY IN THE WAKE OF THE LOW AS CLOUDS DECREASE FROM WEST TO EAST.
1058 AM MDT FRI AUG 28 2015 CURRENT SURFACE ANALYSIS SHOWS LOW PRESSURE OVER EASTERN NEB. WITH HIGH PRESSURE CENTERED OVER THE ROCKIES. WITH RIDGE BUILDING OVER THE GREAT BASIN AND INTO THE ROCKIES. OTHERWISE QUIET WEATHER IS EXPECTED TODAY AS UPPER RIDGING BUILDS INTO THE REGION FROM THE WEST. UPPER RIDGE AXIS WILL CROSS THE REGION SAT WITH UPPER FLOW BECOMING SWRLY. WARMER AND DRIER AIR IS EXPECTED TO PUSH INTO NE WY/WRN SD SAT.
PACIFIC COLD FRONT WILL COME THROUGH SATURDAY AND SATURDAY EVENING WITH SIGNIFICANT COOLING AND GUSTY WINDS. BUT AFTER 29/18Z INCREASING FROM WEST TO EAST WITH COLD FRONT PASSAGE.
STRONG HIGH PRESSURE ALOFT WILL KEEP HIGH TEMPERATURES WELL ABOVE SEASONAL NORMALS THROUGH SATURDAY WITH HOTTER LOWER DESERTS REACHING OR EXCEEDING 110. THERE WILL BE SUFFICIENT MOISTURE EAST OF THE LOWER COLORADO RIVER TO SUPPORT ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS THROUGH SATURDAY.
1027 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL REMAIN OVERHEAD TODAY.
1254 PM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE SLIDES EAST.
1039 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BE IN CONTROL OF OUR WEATHER THROUGH SATURDAY.
915 AM PDT FRI AUG 28 2015 HIGH PRESSURE ALOFT WILL CONTINUE HOT WEATHER THROUGH SATURDAY.
718 AM EDT FRI AUG 28 2015 AVIATION LOW PRESSURE WILL MOVE IN LATE TODAY AND TONIGHT BRINGING SOME RAIN BY EVENING. THE CLOUDS AND SHOWERS WILL PERSIST INTO SATURDAY BEFORE FAIR AND WARMER WEATHER MOVES IN LATE IN THE WEEKEND.
950 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD OVER THE REGION TODAY.
HIGH PRESSURE (1024 MILLIBARS) WAS CENTERED OVER THE NORTHEASTERN U. THE TROUGH OVER THE SOUTHEASTERN STATES HAS CUTOFF INTO AN UPPER LEVEL LOW THAT WAS SPINNING NEAR MOBILE BAY. STRENGTHENING EASTERLY FLOW IN THE LOW LEVELS WILL PUSH ACTIVITY INLAND TOWARDS THE HIGHWAY 301 CORRIDOR BY LATE AFTERNOON. RANGING FROM THE UPPER 80S AT THE COAST TO THE LOWER 90S INLAND. AS HIGH PRESSURE BUILDS TO THE NORTH OF OUR REGION.
1202 PM EDT FRI AUG 28 2015 HIGH PRESSURE TODAY WILL BRING MOSTLY SUNNY SKIES AND WARMER TEMPERATURES.
946 AM EDT FRI AUG 28 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH THE WEEKEND. BROAD HIGH PRESSURE REMAINS IN CONTROL THROUGH TONIGHT.
AMOUNTS SHOULD GENERALLY BE NEAR A QUARTER OF AN INCH OR LESS ACROSS THE LOWLANDS WITH AMOUNTS OF UP TO 0.
1043 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVERHEAD WITH WARMING TREND TODAY INTO SATURDAY.
925 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES AND OHIO VALLEY WILL DRIFT EAST TODAY. THIS WILL ALLOW WEAK LOW PRESSURE TO TRACK EAST FROM THE CENTRAL PLAINS TO THE CENTRAL LAKES ON SATURDAY NIGHT. HIGH PRESSURE CENTERED OVER WESTERN NY WILL SLOWLY DRIFT EASTWARD TODAY. HIGH PRESSURE WILL CONTINUE MOVING EASTWARD OVERNIGHT ALLOWING A WEAK WARM FRONT TO LIFT INTO OHIO. THIS INCREASE IN MOISTURE AND AN APPROACHING AREA OF LOW PRESSURE MAY ALLOW FOR SOME SCATTERED THUNDERSTORMS DEVELOPMENT ACROSS THE WESTERN HALF OF THE REGION.
1039 AM EDT FRI AUG 28 2015 THE CENTER OF HIGH PRESSURE WILL SLIP INTO THE APPALACHIANS TODAY.
951 AM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE BUILDS.
GOOD BUILD-UPS ALREADY OVER THE RIDGELINES IN THE SMOKIES. CHATTANOOGA AIRPORT, TN 87 68 86 69 / 0 10 30 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 85 67 86 66 / 0 10 20 20 OAK RIDGE, TN 86 66 85 67 / 0 10 20 20 TRI CITIES AIRPORT, TN 84 59 84 62 / 0 10 20 20.
LIMITED MID/UPPER LEVEL CLOUD COVER THIS MORNING WILL ALLOW TEMPS TO CLIMB INTO THE LOW 90S BY EARLY THIS AFTERNOON.
1015 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD ACROSS THE STATE AND DRIFT OFF THE EAST COAST OVER THE WEEKEND. MUCH WARMER WEATHER WILL MOVE INTO REGION FOR THE WEEKEND. TO THE L80S ACROSS THE LOWER SUSQ VALLEY.
CHATTANOOGA AIRPORT, TN 87 68 86 69 / 10 10 30 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 85 67 86 66 / 10 10 20 20 OAK RIDGE, TN 86 66 85 67 / 10 10 20 20 TRI CITIES AIRPORT, TN 84 59 84 62 / 10 10 20 20.
748 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL BUILD EAST ACROSS THE STATE AND DRIFT OFF THE EAST COAST OVER THE WEEKEND. MUCH WARMER TEMPERATURES WILL MOVE INTO REGION FOR THE WEEKEND. TO THE L80S ACROSS THE LOWER SUSQ VALLEY.
944 AM PDT FRI AUG 28 2015 ABOVE NORMAL TEMPERATURES ARE FORECAST INTO SATURDAY AS HIGH PRESSURE AND OFFSHORE FLOW PERSIST. THE HIGH WILL MOVE EAST BY LATE SATURDAY. HIGH PRESSURE ALOFT WITH WEAK OFFSHORE FLOW TURNING TO WEAK ONSHORE FLOW WILL BRING ANOTHER HOT DAY ACROSS THE AREA BEFORE COOLING KICKS IN SATURDAY. SOME SLIGHTLY WARMER HIGH TEMPERATURES SOUTH AND SLIGHTLY COOLER NORTH BUT OVERALL TEMPERATURES ACROSS THE AREA WILL BE WELL ABOVE NORMAL. THE SLIGHTLY WARMER HIGHS SOUTH COMBINED WITH MORE ATTAINABLE RECORDS SHOULD BRING MORE RECORD HIGHS THAN YESTERDAY. THE HIGH FINALLY BEGINS TO MOVE EASTWARD TONIGHT TO USHER IN A RETURN TO OVERNIGHT CLOUDS AT LEAST IN LB AND LAX IN ADDITION TO THEALL CENTRAL COAST.
740 AM EDT FRI AUG 28 2015 HIGH PRESSURE OVER THE LOWER GREAT LAKES AND OHIO VALLEY WILL DRIFT EAST TODAY. THIS WILL ALLOW WEAK LOW PRESSURE TO TRACK EAST FROM THE CENTRAL PLAINS TO THE CENTRAL LAKES ON SATURDAY NIGHT. HIGH PRESSURE CENTERED OVER WESTERN NY WILL SLOWLY DRIFT EASTWARD TODAY. HIGH PRESSURE WILL CONTINUE MOVING EASTWARD OVERNIGHT ALLOWING A WEAK WARM FRONT TO LIFT INTO OHIO. THIS INCREASE IN MOISTURE AND AN APPROACHING AREA OF LOW PRESSURE MAY ALLOW FOR SOME SCATTERED THUNDERSTORMS DEVELOPMENT ACROSS THE WESTERN HALF OF THE REGION.
618 AM CDT FRI AUG 28 2015 Early this morning, an area of showers and thunderstorms extending from NW Missouri back west into central Kansas and SE Nebraska where a cold front resides continues to push eastward. These storms should continue to progress slowly east across the area tonight out ahead of the cold front. There could even be a few left over showers across the eastern CWA Saturday morning before the cold front clears the area. Models stall the cold front south of the area on Saturday and precipitation should remain south of the area.
634 AM CDT FRI AUG 28 2015 FOR 12Z TAFS /ISSUED 238 AM CDT FRI AUG 28 2015/ AN UNSEASONABLY COOL AND DRY AIR MASS WILL ABATE LATER TONIGHT AS THE SOUTHERN FLANK OF AN EXITING TROUGH OFF THE EAST COAST BECOMES CUTOFF FROM THE PREVAILING WESTERLIES. CURRENTLY THIS UPPER LOW IS LOCATED OVER THE NORTH CENTRAL GULF COAST.
1115 AM CDT FRI AUG 28 2015 HIGH PRESSURE CONTINUES TO MOVE NORTHEAST OUT OF THE OHIO VALLEY. CURRENT TEMPERATURES REFLECT THIS AS TEMPERATURES ARE A FEW DEGREES WARMER THAN THIS TIME YESTERDAY. TEMPERATURES WILL BE A LITTLE WARMER AS WINDS TURN TO SOUTHEAST. UPPER LEVEL RIDGING WILL POKE INTO THE AREA FROM THE WEST. AN UPPER LEVEL TROUGH WILL BE LOCATED OVER THE CENTRAL AND NORTHERN PLAINS WHILE AN UPPER LEVEL LOW WILL BE SITUATED ALONG THE NORTHERN GULF COAST. THE UPPER LEVEL TROUGH TO THE NORTHWEST AND THE UPPER LOW TO THE SOUTH WILL MERGE TO FORM A BROAD UPPER TROUGH ACROSS THE MIDSOUTH.
1007 AM EDT FRI AUG 28 2015 HIGH PRESSURE TODAY WILL BRING MOSTLY SUNNY SKIES AND WARMER TEMPERATURES.
708 AM EDT FRI AUG 28 2015 WARMER WEATHER CAN BE EXPECTED FOR THE WEEKEND AS HIGH PRESSURE BUILDS.
THIS MORNING WAS CLEAR AND SEASONABLY COOL WITH OVERNIGHT LOWS IN THE LOWER 60S FOR MOST. THE UPPER LEVEL LOW IN THE GULF. TEMPS WILL BE WARMER TODAY REACHING THE UPPER 80S.
UPDATE TO MENTION THE SMALL CHANCE OF THUNDERSTORMS IN THE HIGH PRESSURE ALOFT WILL CONTINUE HOT WEATHER THROUGH SATURDAY.
743 AM EDT FRI AUG 28 2015 HIGH PRESSURE WILL REMAIN OVERHEAD TODAY PROVIDING OUR REGION WITH FAIR AND DRY WEATHER WITH PLENTY OF SUNSHINE.
RAIN THIS MORNING REMAINS WELL TO OUR NORTH ALONG THE WEAKENING COLD FRONT. CHATTANOOGA AIRPORT, TN 72 59 65 56 / 40 50 80 80 KNOXVILLE MCGHEE TYSON AIRPORT, TN 68 55 65 55 / 40 40 70 80 OAK RIDGE, TN 66 55 65 54 / 40 40 70 80 TRI CITIES AIRPORT, TN 66 52 63 50 / 50 40 60 70.
/issued 856 PM CDT Fri Apr 30 2021/ High pressure remains over the Mid-South this evening.
319 AM EDT Sat May 1 2021 Weak high pressure will build across the area today with morning clouds giving way to partial sunshine. Weak low pressure will cross the area tonight with a few showers, followed by partial sunshine and seasonably mild temperatures on Sunday.
153 AM EDT Sat May 1 2021 High pressure moves overhead tonight leading to cold, frosty conditions for Saturday morning. High pressure quickly moves south of the Ohio Valley on Saturday allowing southerly flow to develop and moderating temperatures through the weekend. Cu field from earlier in the day has nearly completely dissipated as subsidence on the backside of the surface trof settles into the ILN FA. Cannot completely rule out a few spots bottoming out at the freezing mark, especially in valley/sheltered areas.
But, since this is Wyoming, the weather can change fast, and that will be the case starting Saturday as the ridge gets thoroughly pushed over by the next approaching trough and cold front. The leading edge of the trough and best diffluence aloft moves across the state during the day Saturday, bringing good midlevel lifting. This will be replaced by the arrival of the cold front overnight Saturday night, bringing another round of more steady rain, with the beginnings of accumulation for the higher Absarokas, which will continue into the day Sunday.
Southwesterly winds have begun to increase across the Northern into the Central Plains as low pressure system across Canada slides southeast towards the Great Lakes region. With the low level jet originating across the panhandle of Texas into western Kansas, do not expect appreciable moisture to advect northward overnight. Cut off upper low across northern Mexico begins to move on Saturday, and moves into the central Plains on Sunday. Trajectory of the wave suggest wave will mainly move through eastern Missouri; however, airmass in the vicinity of the upper low is conditionally unstable, and with daytime heating, could be enough to sprout showers and thunderstorms through the afternoon and eveing hours. Have concentrated the highest chances of precipitation across central Missouri, but potential exists for passing showers/isolated thunderstorms across much of the area.
1255 AM EDT Sat May 1 2021 Dry and warmer weather is expected through the weekend. Mainly dry weather is expected through the rest of the weekend with a warming trend in temperature as ridging amplifies over the region.
345 AM CDT Sat May 1 2021 WV imagery shows the upper trough centered just southwest of the Presidio Valley at 06Z, and still developing convection ahead of it. Sunday, flow aloft transitions to zonal as the next trough digs through the SW CONUS.
311 AM CDT Sat May 1 2021 Dry weather is on tap for today as high pressure moves east of the area. Most of tonight will be dry, with gradual increasing clouds late, well in advance of an approaching upper low over TX. Sunday, the upper low will continue northeast, ending up over AR by Sunday evening.
Will continue to see south winds gusting to 30 to 35mph for another couple hours with temps making a late afternoon early evening push into the low 60s in the valley. Temperatures have still been very slow to rise with the cloud cover today, so the high for the day may not actually occur until early evening. Saturday looks to be warmer with a little more moisture, but with those parameters, minimum humidity levels look to be in the 20s again.
315 AM EDT Sat May 1 2021 Upper air pattern consists of a broad 500 mb ridge across the Rockies this morning with a trough in the Pacific NW and another in New England. The broad upper ridge moves into the upper Great Lakes this forecast period.
albeit several degrees warmer via continued airmass modification (assoc/w strong, unimpeded insolation). A cold front is also expected to move across the area from the NW Sunday morning.
329 AM EDT Sat May 1 2021 Upper air pattern consists of a broad 500 mb ridge across the Rockies this morning with a trough in the Pacific NW and another in New England. The broad upper ridge moves into the upper Great Lakes this forecast period.
This activity will wane from west to east tonight as the closed 500 mb low tracks east-northeast into northeast Texas, with all precipitation chances ended for Sunday as a zonal mid- level flow becomes established over the BRO CWFA in the wake of the low.
A nearly closed negatively tilted upper level low will move towards the state Sunday morning and bring a low end chance of severe weather to the state.
355 AM EDT Sat May 1 2021 Dry and warmer weather is expected through the weekend. Mainly dry weather is expected through the rest of the weekend with a warming trend in temperature as ridging amplifies over the region.
325 AM CDT Sat May 1 2021 Another nice spring day is in store for the Ozarks today as high pressure moves over the area. The high will begin to slide to the south and east of the area this afternoon which will allow southerly winds to begin picking up with some gusts to 20-25 mph this afternoon. Overnight, an upper level low over the southern plains will begin to lift north and open up. The cloud cover will help to keep temperatures warm however with overnight lows in the lower 60s to upper 50s.
Scattered showers will return late today, then gradually changes to snow tonight with some light snow accumulations across the higher terrain of central NY. More breaks in the clouds are expected into the early morning hours as high pressure builds in with drier air. The ridge of high pressure will be over the area midday with sunny morning skies. Temperatures starting off in the 20s and 30s should peak in the 50s, perhaps lower 60s in the warmer valleys. Showers return Saturday night as a warm front moves east across the area, followed by a cold front late. A new area of low pressure begins to develop in the Great Lakes region with the stalled frontal boundary becoming a warm front and lifting north into Canada Sunday night.
Weak upper troughing across the area will keep conditions showery through Saturday, especially within the vicinity of the Puget Sound Convergence Zone. Weak upper level ridging will help dry conditions out on Sunday.