Aikyam-Lab/Synoptic-Bench huggingface dataset:
AS WESTERN PERIPHERY OF ANTICYCLONE OVER TX/OK RECEDES WESTWARD. MAIN LOCAL FEATURE BECOMES SOUTHERN EXTENT OF MID LATITUDE TROUGH DIGGING ALONG EAST COAST TOWARD FLORIDA. TRAILING END OF TROUGH AXIS REMAINS NEAR FLORIDA EAST COAST WITH MOISTURE VALUES CLOSE TO CLIMO. ABOVE NORMAL DIURNAL STORM COVERAGE EXPECTED AS GENERAL MID LEVEL TROUGHINESS PERSISTS BETWEEN ARKLATEX AND WESTERN ATLANTIC ANTICYCLONES. RIDGE AXIS WILL EXIST SOUTH OF CENTRAL FL TODAY WITH S/SW WINDS UP TO AROUND 10 KNOTS THIS MORNING.
DEW POINTS WILL REMAIN VERY ELEVATED IN THE LOWER TO MID 70S. THIS IS AT A TIME WE HAVE A SURFACE TROF APPROACHING FROM THE WEST.
A MID/UPPER LEVEL HIGH PRESSURE SYSTEM NOW OUT OVER THE SOUTHERN PLAINS HAS SET SET UP A NW/DIFLUENT FLOW OVER THE OH VALLEY REGION. ESP OVER E/SE PORTIONS OF FORECAST AREA WITHIN THE BROAD NWLY FLOW ALOFT AS A COLD FRONT PRESSES SE TOWARD THE OH RIVER. CLOSER TO THE UPPER RIDGE.
344 AM CDT MON JUL 13 2015 HIGH PRESSURE ALOFT IS IN CONTROL ACROSS THE SOUTHERN PLAINS W/ THE 00Z KOUN SOUNDING SAMPLING -3 C AT 500MB WHICH IS NEAR SEASONAL EXTREMES.
THE PASSAGE OF A TROF THRU THE NRN PLAINS WILL FORCE THE SFC TROF TO EXIT THE E. A SFC TROF BISECT DID THE AREA. THIS TROF WILL REMAIN QUASI-STATIONARY THRU TONIGHT. THIS TROF WILL BECOME MOBILE AFTER MIDNIGHT AND EXIT E AND S OF THE FCST AREA TOMORROW MORNING. CAN'T RULE OUT AN ISOLATED TSTM WITHIN SFC TROF AND ITS CONVERGENCE. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BRING A CONTINUATION OF THE HOT SUMMER TEMPERATURES HEADING INTO TUESDAY. THE UPPER RIDGE AXIS IS PROGGED TO EXTEND FROM THE SOUTHERN PLAINS NORTH INTO THE THE DAKOTAS TUESDAY AHEAD OF AN UPPER TROUGH MOVING INTO THE WEST COAST. THE BOUNDARY TO THE SOUTH IS EXPECTED TO BECOME ACTIVE AGAIN TUESDAY AFTN/EVE WITH ADDITIONAL TSTM DEVELOPMENT FORECAST ALONG THE HIGH PLAINS.
A RIDGE OF HIGH PRESSURE CONTINUES TO BUILD OVER THE SOUTHERN PLAINS. WITH THE MID TO UPPER LEVEL RIDGE CENTERED OVER WEST TEXAS AND THE H850 RIDGE CENTERED OFF THE TEXAS-LOUISIANA GULF COAST. LOW CLOUDS SHOULD ONCE AGAIN BE LESS IN COVERAGE TOMORROW MORNING THAN THIS MORNING WITHOUT A STRONG ONSHORE COMPONENT TO THE LOWER LEVEL WINDS. THIS WILL ALLOW TEMPERATURES TO WARM UP MORE QUICKLY TOMORROW MORNING AS THE HIGH GRADUALLY SLIDES WEST OVER NORTH CENTRAL TEXAS. MODELS HAVE WEAKENED THE INTENSITY OF THE RIDGE SOMEWHAT FROM PREVIOUS MODEL RUNS. SO CURRENT THINKING IS THAT MOST SPOTS TOMORROW WILL ONLY BE A DEGREE OR TWO WARMER THAN TODAY TO KEEP MOST AREAS IN THE MID 90S EXCEPT OUT IN THE RIO GRANDE PLAINS WHERE THEY MAY APPROACH 100 DEGREES.
DEWPOINTS YESTERDAY AFTERNOON REMAINED IN THE LOWER 70S EAST AND MID 70S WEST.
359 AM EDT MON JUL 13 2015 A VERY ACTIVE AND STORMY PERIOD IS IN STORE FOR THE SHORT TERM AS A SERIES OF SHORT WAVE TROUGHS MOVE THROUGH THE GREAT LAKES/OHIO VALLEY REGIONS. SHARPENING UP A LONG WAVE TROUGH THAT WILL RESIDE ACROSS THE EASTERN SEABOARD BY THE END OF THE PERIOD. BETTER FORCING WILL ARRIVE AS A MORE STOUT SHORT WAVE TROUGH ROTATES THROUGH THE OHIO VALLEY. SENDING A COLD FRONT THROUGH OUR AREA DURING THE AFTERNOON.
STUBBORN UPPER LEVEL RIDGING PERSISTS AND MUCH OF THE FORECAST PERSISTS AS WELL. WHICH WERE LARGELY IN THE LOW TO MID 90S.
/ISSUED 341 PM EDT THU JUL 2 2015/ A DEEP LAYER RIDGE HAS REESTABLISHED ITSELF ACROSS CENTRAL FLORIDA THIS MORNING.
/ISSUED 243 PM CDT Thu Jul 2 2015/ (Tonight and Tomorrow) An upper high will be centered over the Great Basin through tomorrow with the forecast area under a north to northwest flow aloft. Given the increase in cloud cover, overnight lows will be somewhat warmer than last night with lows generally in the lower 70s. Likewise, afternoon highs tomorrow will be a few degrees cooler than today with highs ranging from the upper 80s over the Interstate 10 corridor to around 90 and into the lower 90s over the remainder of the area. 15 (Friday night through Thursday) A cold front will be located in the vicinity of the Red River Friday evening, with showers and thunderstorms developing along the boundary.
HIGH PRESSURE WILL ENSURE DRY LOW LEVEL WIND FROM THE NORTHEAST. CLEAR SKIES AND LAKE ENHANCED HIGH PRESSURE WILL FAVOR IDEAL RADIATING CONDITIONS THROUGH TONIGHT.
A COLD FRONT WILL APPROACH FROM THE NORTH. WATER VAPOR IMAGERY THIS AFTERNOON DEPICTS A WELL DEFINED CONVECTIVELY INDUCE VORT MAX MOVING SEWD ON THE BACKSIDE OF THE BAGGY UPPER LEVEL TROUGH. THIS SYSTEM PROJECTED TO ROUND THE BASE OF THE TROUGH LATE TONIGHT/EARLY FRI THEN CROSS THE CAROLINAS LATER FRIDAY. THE LOW LEVEL ATMOSPHERE EXPECTED TO BE SLIGHT-MODERATELY UNSTABLE SUPPORTIVE OF ORGANIZED CONVECTION. EARLIER INITIATION OF CONVECTION WILL LIKELY HAVE AN EFFECT ON MAX TEMPS (2-3 DEGREES COOLER). A STALLED LOW LEVEL TROUGH AND PERTURBATIONS ALOFT SUGGEST A FEW SHOWERS MAY LINGER INTO THE OVERNIGHT HOURS. THE GENERAL OVERALL PATTERN WILL BE DOMINATED BY GENERAL TROUGHINESS IN THE UPPER LEVELS OVER THE EASTERN U. WITH GENERALLY LOW PRESSURE OVER THE AREA THROUGH THE PERIOD.
1156 PM CDT THU JUL 2 2015 FOR 06Z TAFS /ISSUED 226 PM CDT THU JUL 2 2015/ A WET, MEAN TROUGH PATTERN WILL PREVAIL ACROSS THE TN VALLEY OVER THE NEXT 4-5 DAYS. CURRENTLY, A MEAN TROUGH REMAINS ACROSS THE EASTERN HALF OF THE CONUS WHILE THE WESTERN CONUS REMAINS WITHIN AN ELONGATED RIDGE STRETCHING NORTH TO BRITISH COLUMBIA. LOOKS LIKE THE HIGHEST COVERAGE WILL BE AFTER 06Z WHICH HIRES GUIDANCE ALSO SUPPORTS. THEY HAVE NOT DECREASED AS QUICKLY AS ORIGINALLY PLANNED AND LATEST GUIDANCE SHOWS LOWS A FEW DEG WARMER THAN PREVIOUSLY FORECAST LIKELY DUE TO THE CONTINUED CLOUD COVER.
THE WATER VAPOR IMAGERY THIS EVENING INDICATED AN ELONGATED UPPER HIGH EXTENDING FROM NORTHERN NEVADA INTO SOUTHERN NEW MEXICO. MODELS ALL SHOW A SLIGHT SHIFTING THE HIGH AXIS WESTWARD OVERNIGHT. THE ATMOSPHERE IS TEMPORARILY BECOMING MORE STABLE WITH A MUCH WEAKER FLOW AS THE RIDGE AXIS REORIENTS FROM A POSITION NORTH OF OUR AREA TO ONE THAT IS MORE TYPICALLY AMPLIFIED EAST OF OUR AREA.
722 PM EDT THU JUL 2 2015 AN UPPER LEVEL TROUGH. USED THE WARMER TEMPERATURE GUIDANCE. AN UPPER LEVEL TROUGH WILL REMAIN OVER THE E CONUS. WITH AN UPPER TROUGH OVER THE E CONUS. WITH TROUGH AXIS STAYING JUST TO OUR N AND NW WHICH APPEARS TO SHIFT THE UPPER FLOW OVER OUR REGION TO MORE WSW OR SW.
/ISSUED 327 PM CDT THU JUL 2 2015/ UPPER LEVEL HIGH PRESSURE WILL CONTINUE TO BUILD WEST TONIGHT WHILE A TROUGH DEEPENS ACROSS THE CENTRAL PLAINS. THE UPPER TROUGH WILL MOVE INTO THE RED RIVER REGION TONIGHT AND BRING INCREASING LARGE SCALE LIFT AND INCREASING MID LEVEL WINDS. LOCATIONS NORTH OF INTERSTATE 20 WILL HAVE THE HIGHEST STORM CHANCES OVERNIGHT.
759 PM EDT THU JUL 2 2015 HIGH PRESSURE WILL CONTINUE TO DOMINATE ACROSS THE UPPER GREAT LAKES THROUGH THE HOLIDAY WEEKEND. LOWS OVERNIGHT WILL DIP TO THE LOWER TO MIDDLE 50S.
827 PM EDT THU JUL 2 2015 AN UPPER LEVEL TROUGH. USED THE WARMER TEMPERATURE GUIDANCE. AN UPPER LEVEL TROUGH WILL REMAIN OVER THE E CONUS. WITH AN UPPER TROUGH OVER THE E CONUS. WITH TROUGH AXIS STAYING JUST TO OUR N AND NW WHICH APPEARS TO SHIFT THE UPPER FLOW OVER OUR REGION TO MORE WSW OR SW.
HIGH PRESSURE CENTERED OVER THE NORTHERN GULF WATERS WILL RENDER LIGHT WINDS THIS EVENING, ESPECIALLY ALONG THE COAST. LOWS TONIGHT WILL DIP INTO THE LOW TO MID 70S, UPPER 70S ALONG THE IMMEDIATE COASTLINE.
635 PM CDT THU JUL 2 2015 BROAD UPPER LEVEL RIDGE ACROSS THE WESTERN CONUS WITH A BROAD TOUGH IN THE EAST. A SFC BOUNDARY/WEAK COLD FRONT IS DRIFTING SOUTH ACROSS THE AREA WITH A FEW ISOLATED SHOWERS ALONG IT. COOLER TEMPS TODAY WITH LATEST REPORTS RANGING FROM THE MID 70S TO THE MID 80S.
THE MODELS SUGGEST THE THUNDERSTORM ACTIVITY WILL HOLD OFF UNTIL AT LEAST 9Z AND GENERALLY IMPACT THE HIGHWAY 82 CORRIDOR. SO TEMPS MAY BE SLIGHTLY WARMER THAN EXPECTED.
1144 PM CDT THU JUL 2 2015 BROAD UPPER LEVEL RIDGE ACROSS THE WESTERN CONUS WITH A BROAD TOUGH IN THE EAST. A SFC BOUNDARY/WEAK COLD FRONT IS DRIFTING SOUTH ACROSS THE AREA WITH A FEW ISOLATED SHOWERS ALONG IT. COOLER TEMPS TODAY WITH LATEST REPORTS RANGING FROM THE MID 70S TO THE MID 80S.
1042 PM EDT THU JUL 2 2015 AN UPPER LEVEL TROUGH. WV LOOP SHOWS TROUGH ACROSS THE EASTERN HALF OF THE COUNTRY. AN UPPER LEVEL TROUGH WILL REMAIN OVER THE E CONUS. WITH AN UPPER TROUGH OVER THE E CONUS. WITH TROUGH AXIS STAYING JUST TO OUR N AND NW WHICH APPEARS TO SHIFT THE UPPER FLOW OVER OUR REGION TO MORE WSW OR SW.
830 PM CDT THU JUL 2 2015 STRONG SUBSIDENCE IN PLACE FROM HIGH PRESSURE ALOFT HAS KEPT THUNDERSTORM DEVELOPMENT MINIMIZED TODAY DESPITE HIGH INSTABILITY IN PLACE.
741 PM EDT THU JUL 2 2015 HIGH PRESSURE OVER THE AREA WILL BRING MAINLY CLEAR SKIES OVERNIGHT.
/ISSUED 441 PM CDT THU JUL 2 2015/ LARGE SCALE ASCENT WILL INCREASE TONIGHT AS AN UPPER TROUGH AXIS MOVES SOUTHWARD INTO THE RED RIVER VALLEY.
720 PM EDT THU JUL 2 2015 HIGH PRESSURE WILL ENSURE VFR CLEAR CONDITIONS TONIGHT INTO FRIDAY AS DRY LOW LEVEL WIND FROM THE NORTHEAST ELIMINATES NEARLY ALL LOW CLOUDS AFTER SUNSET. THE LOW LEVELS OF THE ATMOSPHERE WILL REMAIN TOO DRY FOR LOW CLOUDS DURING FRIDAY BUT A WEAK WAVE ALOFT OVER THE OHIO VALLEY WILL BRING IN SOME CIRRUS DURING THE AFTERNOON. CLEAR SKIES AND LAKE ENHANCED HIGH PRESSURE WILL FAVOR IDEAL RADIATING CONDITIONS THROUGH TONIGHT.
LITTLE CHANGE IN THE LOCAL PATTERN WITH SURFACE TO MID LEVEL RIDGE AXIS NEAR LAKE OKEECHOBEE AND A CONTINUED WEST/SOUTHWEST WIND PROFILE FOR MOST OF THE REGION.
/ISSUED 316 PM CDT THU JUL 2 2015/ ALREADY STARTING TO SEE A FEW CELLS DEVELOP ALONG THE COLD FRONT DRAPED ACROSS NORTHERN OKLAHOMA.
FLASH FLOOD WATCH LOOKS GOOD GIVEN THE LOW 1 AND 3 HOUR FFG VALUES OVER PLATEAU AND SE TN COUNTIES.
EXPECT A QUIET WEATHER REGIME OVERNIGHT AND FRIDAY WITH CONTINUING HIGH PRESSURE OVER THE REGION. MALIAWCO UPPER RIDGING IN A NORTHWEST FLOW ALOFT WILL DOMINATE TONIGHT INTO FRIDAY NIGHT.
WARMER WEATHER CAN BE EXPECTED FOR THE START OF THE NEW WEEK. ROUGHLY FOR THE PITTSBURGH TO MORGANTOWN AND SURROUNDING AREAS WHERE MOISTURE CONVERGENCE LOOKS MORE LIKELY GIVEN THE PROGGED TRACK OF THE MID LEVEL TROUGH.
HIGH PRESSURE REMAINS FIRMLY IN PLACE ACROSS THE PACIFIC NORTHWEST AND THIS WILL CONTINUE INTO FRIDAY ALONG WITH THE HOT TEMPERATURES.
HIGH PRESSURE WILL ALLOW FOR LIGHT TO CALM WINDS OVERNIGHT INTO EARLY FRIDAY. MODELS CONTINUE TO BE IN GOOD AGREEMENT WITH HIGH PRESSURE LINGERING OVER THE AREA TONIGHT INTO FRIDAY. THE HIGH WILL PROVIDE QUIET WEATHER TO THE AREA ONCE AGAIN. LOWS TONIGHT SHOULD DROP INTO THE LOWER 50S IN MOST AREAS. LAKE BREEZE WILL KEEP LAKESHORE AREAS IN THE LOWER TO MID 70S.
QUIET CONDITIONS WERE PREVALENT ACROSS THE LOWER DESERTS THIS EVENING. CONSENSUS AMONG THE CONVECTIVE- ALLOWING GUIDANCE IS THAT ACTIVITY WILL REMAIN ISOLATED AND CONFINED TO THE HIGHER TERRAIN OF EASTERN AZ. WITH CONVECTION FAVORING THE HIGHER TERRAIN AND GENERALLY SLIM CHANCES FOR STORM SURVIVAL INTO THE LOWER DESERT ELEVATIONS. WITH WARMER SURFACE TEMPS AND MORE FAVORABLE SUPPORT ALOFT FORECAST THIS WEEKEND.
THERE IS A WEAKNESS IN THE SUBTROPICAL RIDGE ACROSS THE FLORIDA KEYS COASTAL WATERS. AN INVERTED TROUGH EXTENDS FROM THE WESTERN CARIBBEAN TO SOUTHEAST FLORIDA.
FRIDAY LOOKS LIKE A CONTINUATION OF TODAY WITH SRLY WINDS EXCEEDING 10 KNOTS BEING THE PRIMARY ISSUE AS WEAKENING RIDGE ALOFT KEEPS CONVECTION AT BAY. A MID TO UPPER LVL RIDGE HAS NUDGED INTO THE CWA TODAY WITH A SOMEWHAT WARMER AND DRIER LAYER NOTED FROM 850 TO 500 MB. BEYOND TODAY THE MID TO UPPER LVL RIDGE WILL REMAIN IN CONTROL OF THE WX OVER THE CWA INTO FRI MORNING, HOWEVER A SHORT WAVE WILL MOVE INTO NORTH LA BY LATE AFTERNOON ERODING THE RIDGE FROM THE NORTH.
927 AM MDT SUN APR 3 2016 QUIET WEATHER CONDITIONS ACROSS CENTRAL/SOUTHWEST MT THIS MORNING, WITH JUST A FEW AREAS OF PARTLY/MOSTLY CLOUDY SKIES FROM CUT BANK TO LEWISTOWN AS POCKETS OF MID-LEVEL MOISTURE MOVE DOWN THE EAST SIDE OF THE HIGH PRESSURE RIDGE OVER WA/OR. SCATTERED SHOWERS AND POSSIBLY A FEW WEAK, SHORT-LIVED THUNDERSTORMS (NAM MODEL INDICATING CAPE VALUES OF 200-400 J/KG AND LIFTED INDICES TO -2) ARE EXPECTED OVER THE SOUTHWEST MTN RANGES, ALONG WITH THE BRIDGERS/LITTLE BELTS/JUDITH/SNOWY MOUNTAINS. UPPER LEVEL RIDGE REMAINS OVER THE REGION THROUGH EARLY MONDAY MORNING.
A WEAK COLD FRONT APPROACHES THE AREA ON MONDAY. THE COLD FRONT IS NOT EXPECTED TO PASS THROUGH THE DFW AREA AIRPORTS ON MONDAY WITH WEAK SOUTH FLOW CONTINUING.
/MOLLEDA AREA OF MVFR/BORDERLINE IFR CEILINGS ASSOCIATED WITH COLD FRONT AFFECTING MIA/FLL AREA TERMINALS EARLY THIS MORNING, ALONG WITH SHOWERS IN THE VICINITY. /ISSUED 336 AM EDT SUN APR 3 2016/ A FAIRLY SHORT DISCUSSION TODAY AS A COLD FRONT IS MOVING THROUGH THE AREA. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT. THE EXCEPTIONS ARE EASTERLY FLOW AROUND HIGH PRESSURE MAY BRING SOME COASTAL SHOWERS MID WEEK AND ANOTHER FRONTAL PASSAGE FOR THE END OF THE WEEK. THESE SLIGHTLY COOLER AIR MASSES THAT WILL BE MOVING IN BEHIND THE TWO FRONTAL PASSAGES WILL KEEP THE HIGH TEMPERATURES MAINLY IN THE 70S AND LOW 80S ACROSS SOUTH FLORIDA FOR THE WEEK. A DIFFUSE COLD FRONT. A COLD FRONT IS BRINGING A FRESH TO STRONG NORTHERLY BREEZE TO THE SOUTH FLORIDA WATERS THIS MORNING.
/ISSUED 328 AM CDT SUN APR 3 2016/ HIGH PRESSURE OVER THE REGION TODAY WILL MOVE EAST THROUGH MONDAY. THIS WILL ALLOW FOR A CONTINUATION OF DRY WEATHER CONDITIONS ALONG WITH WARMER TEMPERATURES. HIGHS TODAY WILL RANGE FROM THE MID 60S OVER NORTHWEST TENNESSEE TO THE LOWER 70S OVER THE DELTA REGION. TEMPERATURES TONIGHT WILL REMAIN MILD IN THE 50S WITH EVEN WARMER CONDITIONS MONDAY WITH MOST LOCATIONS INTO THE LOWER TO MIDDLE 70S.
615 AM CDT SUN APR 3 2016 A cool morning is underway, with light north winds across the region behind a weak cold front that passed through the area yesterday. Winds then become southwesterly and increase considerably into the afternoon, helping to set the stage for a much warmer day today, as temperatures warm into the 70s. Another weak, dry cold front will pass through the area late tonight. The only appreciable affect from this front will be slightly cooler temperatures on Monday, and a switch to northerly winds. As mentioned above, temperatures on Monday will be slightly cooler compared to today, especially over central Missouri, where readings will be knocked back into the mid 60s.
719 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH MONDAY. A DRY COLD FRONT WILL MOVE THROUGH LATE MONDAY NIGHT.
1132 AM EDT SUN APR 3 2016 WEAK HIGH PRESSURE WILL BUILD OVER THE AREA THROUGH THIS AFTERNOON BEFORE SHIFTING OFFSHORE THIS EVENING. A COLD FRONT WILL PASS THROUGH THE AREA MONDAY AFTERNOON. CANADIAN HIGH PRESSURE WILL SHIFT ACROSS THE AREA THROUGH MIDWEEK.
HIGH PRESSURE WILL BRIEFLY BUILD INTO THE REGION FROM THE WEST TODAY AND WILL SHIFT OFFSHORE OVERNIGHT. A DRY COLD FRONT WILL CROSS THE CAROLINAS MONDAY EVENING.
842 AM EDT SUN APR 3 2016 WEAK HIGH PRESSURE WILL BUILD OVER THE AREA THROUGH THIS AFTERNOON BEFORE SHIFTING OFFSHORE THIS EVENING. A COLD FRONT WILL PASS THROUGH THE AREA MONDAY AFTERNOON. CANADIAN HIGH PRESSURE WILL SHIFT ACROSS THE AREA THROUGH MIDWEEK.
1002 AM EDT SUN APR 3 2016 WINDS DIMINISH AS HIGH PRESSURE PASSES CLOSE BY TODAY. BUT INCREASE AGAIN TONIGHT AS LOW PRESSURE APPROACHES. ITS COLD FRONT CROSSES MONDAY.
THE UPPER RIDGE OVER THE PACIFIC NORTHWEST WILL GRADUALLY SHIFT EAST THROUGH TONIGHT AS A RELATIVELY STRONG PACIFIC SYSTEM MOVES INTO THE REGION.
715 AM EDT SUN APR 3 2016 A STRONG COLD FRONT HAS BROUGHT SNOW AND HIGH WINDS TO THE REGION OVERNIGHT.
THE STRONG UPPER LEVEL RIDGE OVER THE WESTERN U. RELATED TO THIS MINOR DISTURBANCE PASSING THROUGH THE UPPER LEVEL RIDGE. MODELS HAVE AN UPPER RIDGE OVER THE CWA FLATTENING OUT ON MONDAY INTO MONDAY NIGHT WITH ZONAL FLOW ALOFT.
OCCASIONALLY BREEZY NLY WINDS EXPECTED THIS MORNING AND EARLY AFTERNOON BEFORE PRES GRADIENT RELAXES AS HIGH PRES RIDGE MOVES TO THE NRN GULF OF MEXICO TO OFF THE SE U.
HIGH THIN CLOUDS ARE SPREAD ACROSS THE REGION THIS MORNING AS A WEAK UPPER LEVEL DISTURBANCE MOVES EAST ACROSS NRN NV AND A MUCH LARGER AND STRONGER TROUGH OFF THE COAST APPROACHES. THE TROUGH OFF THE COAST WILL MOVE THROUGH TOMORROW. BRINGING A COLD FRONT WITH IT. THIS FRONT WILL RESULT IN MUCH COOLER TEMPERATURES AND ISOLATED TO NUMEROUS SHOWERS MONDAY. WARM AGAIN TODAY AS UPPER RIDGE AXIS SHIFTS TO OUR EAST AND FLOW ALOFT BACKS FROM WESTERLY TO SOUTHWESTERLY.
DRY AND COOLER TODAY. COLD FRONT WAS SOUTH OF THE AREA AND NORTH WINDS WERE USHERING IN COOLER/DRIER AIR. NORTH WINDS AROUND 20 KNOTS AND GUSTY BEHIND A COLD FRONT WERE PRODUCING HAZARDOUS MARINE CONDITIONS THIS MORNING.
LIGHT SOUTH WINDS AND A DEVELOPING RIDGE OVERHEAD. A WEAK COLD FRONT APPROACHES THE AREA ON MONDAY. THE COLD FRONT IS NOT EXPECTED TO PASS THROUGH THE DFW AREA AIRPORTS ON MONDAY WITH WEAK SOUTH FLOW CONTINUING.
BUT THINK AS THEY MOVE SOUTH IT SHOULD BE MAINLY FLURRIES FOR AREAS NORTH OF THE HIGHWAY 2 CORRIDOR. WINDS HAVE SWITCHED TO THE NORTH THERE NOW SO DOUBT THEY WILL GET MUCH WARMER. WITH HIGHS OVER LAKE OF THE WOODS AROUND THE FREEZING MARK AND HIGHS IN SOUTHEASTERN ND BREAKING INTO THE 50S.
UPPER LEVEL NW FLOW WAS TRANSITIONING TO RIDGING. HIGHS TODAY WL TOP OUT IN THE LOWER AND MID 70S AT MOST LOCATIONS. COOLER AIR BEHIND THE FNT WL BE FELT MAINLY ACRS THE NERN PART OF THE STATE MON NGT.
644 AM CDT SUN APR 3 2016 FAST MOVING LOW PRESSURE SYSTEM WILL DROP SOUTH INTO SOUTHERN MN THROUGH THE DAY TODAY. MIXING WILL BRING MUCH WARMER TEMPERATURES. COLD FRONT WILL BE MAKING ITS WAY THROUGH SRN IA AT ONSET ENDING THE ABOVE NORMAL TEMPERATURES. WITH SHORT WAVE RIDGING AND SUBSIDENCE THE WEEK WILL START WITH FAIR WEATHER AND SEASONAL TEMPERATURES. ALTHOUGH TEMPS MAY BEGIN TO REBOUND AGAIN INTO SAT WITH LONG WAVE PATTERN STARTING TO TRANSITION AND RIDGING APPROACHING.
914 AM EDT SUN APR 3 2016 A STRONG COLD FRONT HAS BROUGHT SNOW AND HIGH WINDS TO THE REGION OVERNIGHT.
LATEST SURFACE OBSERVATIONS SHOWED LOW PRESSURE OVER NORTHWEST NORTH DAKOTA EARLY THIS MORNING. SOUTHWEST WINDS WERE ALREADY ON THE INCREASE ACROSS SOUTHWEST MINNESOTA AND WESTERN IOWA AS THE WARM SECTOR OF THE LOW PUSHES EAST. SOUTHWEST WINDS WILL BE ON THE INCREASE FOR AREAS ALONG AND WEST OF THE MISSISSIPPI RIVER THIS MORNING AS THE LOW MOVES IN. A FEW RAIN SHOWERS ARE POSSIBLE THIS AFTERNOON ALONG A COLD FRONT DROPPING THROUGH. HAVE LOWERED THESE FOR LATE THIS MORNING INTO THIS AFTERNOON WHICH DROP AFTERNOON MINIMUM RELATIVE HUMIDITY VALUES INTO THE LOWER 30S TO UPPER 20S. WE WILL SEE WINDS SHIFT TO THE WEST AND NORTHWEST AS THE LOW MOVES THROUGH. CANADIAN HIGH PRESSURE BUILDS INTO THE AREA TONIGHT INTO MONDAY WITH COOL AND DRY WEATHER EXPECTED.
925 AM MDT SUN APR 3 2016 MADE SOME MINOR TWEAKS TO TEMPERATURES WITH LOWS BEING WARMER THAN EXPECTED. UPSTREAM AN UPPER LEVEL RIDGE IS MOVING INTO THE PACIFIC NORTHWEST AHEAD OF A HIGH AMPLITUDE BUT SMALL TROUGH MOVING EASTWARD IN THE EASTERN PACIFIC. WEAK COLD FRONT ALSO DROPPING THROUGH THE AREA THIS AFTERNOON BUT THIS IS WEAKENING AS THE HEIGHTS BEGIN TO BUILD. WILL BE A COOLER DAY DUE TO MORE CLOUD COVER AND LESS OF A DOWNSLOPE WIND COMPONENT. RIDGE AXIS MOVES INTO THE AREA TONIGHT TO CALM THE SHOWER ACTIVITY AND IT REACHES THE EASTERN MONTANA BORDER BY MONDAY AFTERNOON. THIS WILL BRING WARMER TEMPERATURES BUT A STRONG COLD FRONT ARRIVES ON ITS HEELS MONDAY AFTERNOON AND EVENING.
1051 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD INTO THE AREA THROUGH MONDAY. A DRY COLD FRONT WILL MOVE THROUGH LATE MONDAY NIGHT.
918 AM EDT SUN APR 3 2016 A SURFACE COLD FRONT IS CURRENTLY CROSSING THE UPPER KEYS. THIS LOW LEVEL MOISTURE IS PRODUCING SOME LOW LEVEL CEILINGS STRETCHING BACK TO THE NORTH. THE PRESSURE GRADIENT WILL BREAK DOWN QUICKLY THIS AFTERNOON WITH A RIDGE TO OUR NORTH WEAKENING UNDER PRESSURE FROM THE NEXT LOW DIVING OUT OF CANADA. THIS LOW WILL ADVANCE ON THE GREAT LAKES TODAY WITH A TROUGH MOVING THROUGH THE SOUTHEAST OVERNIGHT AND MONDAY.
CLOUD COVERAGE WILL DECREASE AS HIGH PRESSURE QUICKLY PASSES OVER THE REGION. BY MID/LATE AFTERNOON WINDS WILL QUICKLY TURN SOUTHWESTERLY IN ADVANCE OF THE NEXT SYSTEM AND TEMPERATURES WILL QUICKLY BUMP UP TO THE LOW TO MID 40S ON AVERAGE. THE COLD FRONT WILL CROSS THE REGION MONDAY MORNING AND BRING A RETURN TO COLD ADVECTION. BUT DO NOT EXPECT MUCH MORE THAN 1-2 INCHES AT MOST WITH THE HIGHER SUN ANGLE AND LIMITED MOISTURE TO WORK WITH. SKIES WILL BEGIN TO CLEAR OUT OVERNIGHT AS HIGH PRESSURE BUILDS IN FROM THE WEST.
1046 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL BUILD INTO THE REGION THROUGH TONIGHT. A COLD FRONT WITH LIMITED MOISTURE WILL MOVE THROUGH MONDAY NIGHT.
AN APPROACHING UPPER LEVEL LOW PRESSURE SYSTEM MOVING TOWARD THE PAC NW WILL PRODUCE A VERY SLIGHT CHANCE FOR MOUNTAIN SHOWERS OR A FEW ISOLATED THUNDERSTORMS AGAIN THIS AFTERNOON AND EVENING OVER THE TRINITY ALPS. AN UPPER LEVEL LOW PRESSURE SYSTEM MOVING TOWARD THE PAC NW MAY PRODUCE A FEW MOUNTAIN SHOWERS OR A FEW ISOLATED THUNDERSTORMS THIS EVENING OVER THE TRINITY ALPS. A WEAK COLD FRONT WILL MOVE ACROSS THE REGION TONIGHT.
1225 PM EDT SUN APR 3 2016 A STRONG COLD FRONT HAS BROUGHT SNOW AND HIGH WINDS TO THE REGION OVERNIGHT.
VFR EXPECTED TO PREVAIL WITH SOME PASSING HIGH CLOUDS POSSIBLE AS UPPER TROUGH AXIS MOVES ACROSS THE REGION. SURFACE RIDGING AND A WEAK PRESSURE GRADIENT WILL RESULT IN LIGHT AND VARIABLE TO LIGHT AND SOUTHERLY WINDS WITH SPEEDS 8 KNOTS OR LESS.
1032 AM EDT SUN APR 3 2016 HIGH PRESSURE WILL CONTINUE TO BUILD IN THIS AFTERNOON WITH JUST SOME MID AND HIGH CLOUDS STREAMING ACROSS THE REGION. COOLER AND MUCH LESS HUMID AIR HAS OVERSPREAD THE AREA AND IT SHOULD REMAIN PLEASANT FOR THE REST OF TODAY WITH TEMPERATURES CLIMBING INTO THE MID 70S NORTH TO NEAR 80 SOUTH. FOR THE NEXT FEW DAYS HIGH PRESSURE WILL SETTLE ACROSS THE NORTHERN GULF OF MEXICO AND SOUTHEAST U.
CHATTANOOGA AIRPORT, TN 66 43 74 45 / 0 0 20 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 61 41 71 41 / 0 0 20 10 OAK RIDGE, TN 62 41 73 41 / 0 0 30 10 TRI CITIES AIRPORT, TN 59 35 67 36 / 0 0 40 30.
A DRY UPPER TROUGH IS FORECAST TO MOVE INLAND TO OUR NORTH LATE TODAY. BUT THIS TROUGH WILL HAVE LITTLE IMPACT ON OUR WEATHER OTHER THAN SLIGHT COOLING TODAY.
BASED ON LATEST SURFACE ANALYSIS HIGH PRESSURE WAS CENTERED OVER CENTRAL TENNESSEE WITH THE WEAK COLD FRONT THAT MOVED THROUGH OVERNIGHT NOW SOUTH OF BIRMINGHAM.
727 AM EDT SUN APR 3 2016 WINDS WILL CONTINUE TO DECREASE THROUGH THE MORNING AS HIGH PRESSURE BUILDS OVER THE AREA. WITH WINDS SHIFTING TO THE SW LATE IN THE AFTERNOON AS THE HIGH MOVES INTO THE DEEP SOUTH.
LOW TEMPERATURES WERE RATHER CHILLY ACROSS THE REGION THIS MORNING WITH POCKETS OF UPPER 30S REALIZED THROUGHOUT THE LOWER MS VALLEY. CONTINUED NORTHWEST FLOW ALOFT WILL CAUSE A COUPLE OF WEAK DRY COLD FRONTS TO TRY AND SLIP SOUTH INTO THE REGION DURING THE PERIOD. HIGHS MONDAY AFTERNOON WILL BE A TAD WARMER AS THEY TOP OUT IN THE MIDDLE 70S AREAWIDE. LOWS MONDAY NIGHT WILL BE A BIT WARMER AS THEY RANGE FROM THE MIDDLE 40S TO LOWER 50S.
A warm front will extend eastward from this low near the Oklahoma/Kansas border. Low level upslope flow north of this front will result in very humid conditions today except for the extreme southwest corner where veered surface winds will allow the lower levels to dry out.
AN AREA OF LOW PRESSURE WILL MOVE THROUGH THE OHIO VALLEY TODAY AND BRING RAIN TO MUCH OF CENTRAL INDIANA.
1105 AM EDT THU AUG 6 2015 LOW PRESSURE WILL TRACK TO THE SOUTH OF PENNSYLVANIA THROUGH THE END OF THE WEEK AND MOVE OFFSHORE THIS WEEKEND. HIGH PRESSURE WILL MOVE INTO THE AREA BEHIND THE DEPARTING LOW. AS CENTRAL PA WILL BE IN REGION OF LG SCALE SUBSIDENCE ON EAST SIDE OF UPPER RIDGE OVR THE MISS VALLEY.
AN AREA OF LOW PRESSURE AND SURFACE COLD FRONT WILL BEGIN INTERACTING WITH MODEST INSTABILITY. THERE IS STILL A TORNADO THREAT WHERE THE WARM FRONT/COLD FRONT. SEEMS THE GENERAL TREND IN THE FLOW PATTERN ALOFT IS TO SEE A QUASI-FLAT UPPER LEVEL RIDGE OVER THE REGION BECOME A RATHER AMPLIFIED UPPER LEVEL RIDGE. BUT COOLER TEMPS LIKELY RESIDE OVER THE CWA IN THE FRONT END OF THE OUT PERIODS.
CHATTANOOGA AIRPORT, TN 86 72 85 70 / 90 70 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 83 70 83 67 / 90 80 20 10 OAK RIDGE, TN 82 69 83 67 / 90 70 20 10 TRI CITIES AIRPORT, TN 80 68 79 63 / 90 80 40 10.