Aikyam-Lab/Synoptic-Bench huggingface dataset:
908 PM CDT SUN AUG 2 2015 A COLD FRONTAL BOUNDARY PUSHING INTO THE SOUTHEAST CORNER OF IOWA THIS EVENING HAS TRIGGERED SOME STRONG THUNDERSTORMS AHEAD OF IT. 19Z/2PM SURFACE ANALYSIS SHOWS COLD FRONT EXTENDING FROM THE UPPER PENINSULA OF MICHIGAN TO NORTHERN IOWA. COLD FRONT WILL GRADUALLY SETTLE SOUTHWARD LATER THIS EVENING. BY THUR, THE UPPER FLOW APPEARS TO GO BACK TO NORTHWEST AND MODELS START HIGH PRESSURE TO BUILD IN FROM NORTH, DRYING THINGS OUT BY FRI. FRI TO SUN APPEAR TO BE COOL AND DRY WITH HIGH PRESSURE IN AREA. A COLD FRONT CURRENTLY ORIENTED FROM SW WISCONSIN TO SW IOWA WILL CONTINUE TO PUSH SOUTHEASTWARD INTO CENTRAL IL OVERNIGHT.
658 PM CDT SUN AUG 2 2015 PRECIPITATION CHANCES WILL FADE FOR THE REMAINDER OF THE AFTERNOON ACROSS WEST CENTRAL WI AS A COLD FRONT PUSHES EAST AND SOUTH OF THE FA. THE RIDGE AXIS WILL STRETCH FROM THE DAKOTAS TO IA/MO ON MONDAY. THE ONLY EXCEPTION IS OVER THE FAR NORTHEAST CWA (RICE LAKE AND LADYSMITH) WHERE AN INCREASE IN AFTERNOON CLOUDINESS IS FORECAST ALONG WITH A FEW LIGHT SHOWERS DUE TO THE COLD TROUGH ALOFT AS ONE HEADS NORTHEAST ACROSS THE WESTERN GREAT LAKES.
WITH READINGS IN THE LOWER 50S TO AROUND 60F. FOWLE A RIDGE OF HIGH PRESSURE AT THE SURFACE IS BUILDING SOUTHWARD ACROSS THE CWA. THIS HIGH WILL CONTINUE TO BRING THESE CONDITIONS LARGELY INTO MONDAY NIGHT EVEN. BUT WILL ALSO BEGIN WATCHING AN AREA OF LOW PRESSURE FORMING OVER THE HIGH PLAINS.
/ISSUED 252 PM CDT SUN AUG 2 2015/ THE SOUTH PLAINS REGION WILL REMAIN POSITIONED ON THE NORTHEAST FLANK OF A RELATIVELY FLAT UPPER RIDGE THROUGH MONDAY. GOOD MID- LEVEL MONSOONAL MOISTURE REMAINS TRAPPED WITHIN AND MOVING AROUND THE NORTHERN PORTION OF THE RIDGE WHILE SURFACE MOISTURE ALSO REMAINS ELEVATED. THIS LOOKS TO BE THE LAST GOOD SHOT A PRECIPITATION FOR THE WEEK AS CENTER/AXIS OF THE UPPER LEVEL HIGH/RIDGE WILL SHIFT EWD TO THE SRN PLAINS.
1118 PM EDT SUN AUG 2 2015 FAIR WEATHER WILL CONTINUE INTO THE OVERNIGHT AS HIGH PRESSURE SLIDES OFF TO OUR SOUTH. A COLD FRONT IS EXPECTED TO PASS THROUGH ON MONDAY.
CONDITIONS WILL BE PARTLY CLOUDY OVERNIGHT FOR THE PLAINS WHILE STAYING MOSTLY CLOUDY OVER THE MOUNTAINS WITH LOWS INTO THE LOWER 60S.
IN THE LOW TO MID LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS SOUTH FLORIDA OVERNIGHT. AN AREA OF LOW PRESSURE WILL BE CENTERED OVER EASTERN CUBA TONIGHT.
THIS SOUNDING VERIFIED THE VERY HIGH LEVEL OF SURFACE BASED INSTABILITY BUILDING UNDER THIS CAP WITH SBCAPES OF 5000 TO 6000 J/KG AS SURFACE TEMPERATURES WERE IN THE UPPER 80S TO AROUND 90 WITH WIDESPREAD DEWPOINTS IN THE LOWER 70S. 18Z SURFACE ANALYSIS SHOWED AN APPROACHING COLD FRONT REACHING FROM A WEAK LOW OVER EASTERN WI EXTENDING SW ACROSS SOUTHERN MN INTO N CENTRAL IA TO NE NEB. MAIN FOCUS IS ON THE POTENTIAL FOR SEVERE STORMS TONIGHT AS THE COLD FRONT MOVES THROUGH THE AREA.
THIS WILL MEAN THAT MRNG LOWS TO FALL INTO THE LOW TO MID 70S INSTEAD OF THE 60S AND THE AFTERNOON HEAT INDEX WILL CLIMB ABOVE THE CENTURY MARK TMRW. BUT THE RIDGE ALOFT BROKE A BIT AND THIS WILL HELP IN AFTN STORM PRODUCTION OVER THE NEXT SEVERAL DAYS. LOW LEVEL SOUTHERLY FLOW WILL DEVELOP AS ONE LOW PRESSURE SYSTEM NEAR THE FLORIDA PANHANDLE MOVES OFF TO THE EAST. AND ANOTHER LOW PRESSURE SYSTEM FORMS OVER THE SOUTHERN ROCKIES. THE FLAT UPPER LEVEL RIDGE WILL BE CENTERED OVER THE SOUTHWEST U. THE POSITION OF THE RIDGE WILL ALLOW FOR MAINLY DAYTIME HEATING AND SEA BREEZE CONVERGENCE TYPE SHOWERS AND THUNDERSTORMS.
THE LOW LEVELS REMAIN VERY DRY. SURFACE MOISTURE WILL BE ON THE INCREASE LATER TONIGHT AND INTO MONDAY AS WINDS BECOME MORE SOUTHERLY IN THE LOWER LEVELS. AN UPPER LEVEL HIGH WILL INTENSIFY OVER ARIZONA AND NEW MEXICO THIS WEEK.
/ISSUED 306 PM EDT SUN AUG 2 2015/ RELATIVELY QUIET FORECAST PERIOD AS WEAK HIGH PRESSURE NORTH OF THE AREA AND NW TO WEST FLOW ALOFT DOMINATE THE NORTHWEST MAJORITY OF THE CWA WITH ABNORMALLY DRY THERMAL PROFILES AND MOSTLY CAPPED CONVECTIVE ENVIRONMENT. THE FAR SOUTHEAST PORTION OF THE AREA LOOKS TO BE INFLUENCED BY THE EVOLUTION OF A WEAK AREA OF LOW PRESSURE SLOWLY TRACKING NEWD FROM THE FL PANHANDLE THIS EVENING TO OFF THE FAR SE GA COAST BY MONDAY AFTERNOON.
716 PM EDT SUN AUG 2 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS TO START THE WORK WEEK. ATTENTION WILL THEN TURN TO THE LOW PRESSURE SYSTEM CURRENTLY OVER WISCONSIN. WHILE THE LOW MOVES EAST OVERNIGHT. THE ASSOCIATED COLD FRONT WILL SLIDE TO THE SOUTHEAST. OVERNIGHT LOWS SHOULD REMAIN A BIT WARMER THAN LAST NIGHT CONSIDERING WINDS WILL NOT GO CALM AS WELL AS HIGH CLOUDS MOVING IN BEFORE THE FRONT. MONDAY HIGHS WILL BE A FEW DEGREES COOLER THAN TODAY WITH THE ARRIVAL OF THE COLD FRONT.
HIGH PRESSURE TRIES TO BUILD FROM THE EAST ACROSS THE AREA ON MONDAY, RESULTING IN A SLIGHTLY MORE SE WIND FLOW IN THE LOW TO MID LEVELS. MID LEVEL TROUGH/DEEP MOISTURE AXIS WILL REMAIN POSITIONED ACROSS THE NORTHERN HALF OF THE FLORIDA PENINSULA THROUGH MONDAY. LOWER H5 HEIGHTS ACROSS CUBA ARE THEN EXPECTED TO MOVE TO THE WEST ALLOWING STRONGER RIDGING TO BUILD ACROSS THE WESTERN ATLANTIC INTO THE MID TO LATE WEEK PERIOD.
AS UPR TROF AMPLIFIES INTO THE UPR LKS. WITH THIS THERMAL TROF. CYC H85 NW FLOW IS PROGGED TO PERSIST AND MAINTAIN THERMAL TROF OVER THE CWA. BASIC IDEA IS THAT WITH AN UPPER LOW MOVES NE OF THE CWA MON NIGHT INTO TUE. CIGS MAY DROP TO NEAR THE HIGH END OF MVFR AT KCMX AND POSSIBLY AT KSAW MON. THE ARRIVAL OF A HI PRES RIDGE LATER IN THE WEEK WILL RESULT IN LIGHT WINDS UNDER 15 KTS.
605 PM CDT SUN AUG 2 2015 19Z/2PM SURFACE ANALYSIS SHOWS COLD FRONT EXTENDING FROM THE UPPER PENINSULA OF MICHIGAN TO NORTHERN IOWA. COLD FRONT WILL GRADUALLY SETTLE SOUTHWARD LATER THIS EVENING. BY THUR, THE UPPER FLOW APPEARS TO GO BACK TO NORTHWEST AND MODELS START HIGH PRESSURE TO BUILD IN FROM NORTH, DRYING THINGS OUT BY FRI. FRI TO SUN APPEAR TO BE COOL AND DRY WITH HIGH PRESSURE IN AREA. A COLD FRONT CURRENTLY ORIENTED FROM SW WISCONSIN TO SW IOWA WILL CONTINUE TO PUSH SOUTHEASTWARD INTO CENTRAL IL OVERNIGHT.
NORTHWEST FLOW CONTINUES ACROSS CENTRAL AND EASTERN KANSAS AT 20Z WITH A RIDGE OVER THE ROCKIES AND AND TROUGH IN ONTARIO INTO THE GREAT LAKES. MODELS DIFFER HOW FAR SOUTH THE FRONT WILL GO ACROSS NORTHERN KANSAS, BUT LOOKS TO EXTEND FROM A LOW PRESSURE TROUGH IN WESTERN NEBRASKA SOUTHEAST ACROSS EAST CENTRAL KANSAS AND INTO CENTRAL MISSOURI BY 18Z.
959 PM PDT SUN AUG 2 2015 COOLER WEATHER THIS WEEK.
FOR MONDAY, A RIDGE OF HIGH PRESSURE TO OUR WEST WILL START TO BUILD ACROSS THE AIR. AFT THAT THOUGH, THE UPPER LEVEL RIDGE SETTLES BACK INTO PLACE AND THE DRY AND HOT CONDITIONS RETURN. GIVEN THE SOIL AND VEGETATION MOISTURE CONDITIONS DRYING OUT, MAY SEE TEMPERATURES A DEGREE OR TWO WARMER THAN LAST WEEK.
SO NOT EXPECTING WIDESPREAD STORMS TO DEVELOP WEST OF THE HIGHWAY. A RIDGE WILL RESIDE OVER THE ROCKIES THROUGH MONDAY. MAX TEMPERATURES MONDAY WILL RANGE FROM THE UPPER 80S IN EASTERN COLORADO TO THE LOWER 90S IN THE EASTERN FA.
AS HIGH PRESSURE TO OUR W DOMINATED THE WEATHER PATTERN.
835 PM MDT SUN AUG 2 2015 QUIET CONDITIONS ARE EXPECTED ONCE AGAIN TONIGHT AS A RIDGE OF HIGH PRESSURE GRADUALLY SHIFTS EAST. SHIFTING SOUTHERLY BY MONDAY MORNING AS HIGH PRESSURE PUSHES EAST.
SINCE DEWPOINTS ARE IN THE LOW/MID 60S. DESPITE STRONG SURFACE HEATING HAS RESULTED IN ONLY A FEW SHORT-LIVED CU FORMING MAIN IN/NEAR THE HIGHER TERRAIN. SKIES OTHERWISE WERE CLEAR WITH HIGHS WARMING INTO THE LOW/MID 90S. SOUTH OF AN UPPER LOW STATIONED OVER THE SOUTHERN HUDSON BAY. WEAK UPPER RIDGING OVER THE JAMES BAY HAS RESULTED IN A HIGH LATITUDE BLOCKING SETUP OVER EAST/CENTRAL CANADA. A BLOCKING PATTERN ALSO WAS IN PLACE ACROSS THE NE PACIFIC. THE BLOCKING SITUATION PER MID/UPPER LEVEL LEVEL FORECASTS SHOULD REMAIN IN PLACE INTO THE MID WEEK. THE CANADIAN UPPER LOW SHOULD GRADUALLY MOVE TOWARD THE MARITIMES TOWARDS THE END OF THE WEEK.
833 PM CDT SUN AUG 2 2015 THE SUBTROPICAL RIDGE THAT DOMINATED DURING MUCH OF JULY FORECAST TO CONTINUE HOT WEATHER THROUGH THIS FIRST WEEK OF AUGUST. AS HIGH PRESSURE TO OUR W DOMINATED THE WEATHER PATTERN.
CHATTANOOGA AIRPORT, TN 66 95 71 95 / 0 10 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 65 92 68 90 / 0 10 10 20 OAK RIDGE, TN 64 92 68 90 / 0 10 10 20 TRI CITIES AIRPORT, TN 61 90 65 86 / 0 10 10 20.
738 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL KEEP THINGS QUIET WITH NEAR NORMAL TEMPERATURES TO ROUND OUT THE WEEKEND. A COLD FRONT WILL BRING SHOWERS AND THUNDERSTORMS TO THE AREA MONDAY. ANOTHER QUIET DAY IS EXPECTED OVER CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA TODAY AS WEAK HIGH PRESSURE CONTINUES TO PREVAIL OVER THE REGION. TEMPS WILL RISE INTO THE LOWER 80S THIS AFTERNOON AND FALL INTO THE 60S TONIGHT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP AHEAD OF THE APPROACHING COLD FRONT MID MONDAY AFTERNOON.
808 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL CROSS THE AREA OVERNIGHT INTO MONDAY. A COLD FRONT WILL APPROACH MONDAY NIGHT.
TONIGHT AND MONDAY SEVERE THUNDERSTORM THREAT WILL END THIS EVENING AS COLD FRONT EXITS THE AREA. TEMPERATURES SHOULD RETURN TO NORMAL TONIGHT AND BE A FEW DEGREES COOLER THAN USUAL MONDAY.
858 PM EDT SUN AUG 2 2015 HIGH PRESSURE REMAINS OVER THE REGION THROUGH MONDAY.
SINCE DEWPOINTS ARE IN THE LOW/MID 60S. HIGH PRESSURE ACROSS THE REGION WILL PROVIDE FOR VFR CONDITIONS THRU THE FCST PERIOD.
835 PM MST SUN AUG 2 2015 MUCH DRIER WEATHER IS IN STORE THROUGH AT LEAST THE MIDDLE PART OF THE COMING WEEK WITH STORM CHANCES CONFINED TO THE HIGHER TERRAIN EAST OF PHOENIX.
EXPECT A CLEAR EVENING AS SFC RIDGING/HIGH PRESSURE/SUBSIDENCE AND DRY AIR LESS THAN 1. THE GFS/ECMWF BOTH INDICATE THAT THE LOW LEVEL THERMAL RIDGE (H850 TEMPS ~ 22 DEG C) WILL SHIFT A LITTLE MORE TO THE NORTH EARLY THIS WEEK.
A COLD FRONT HAS MOVED THROUGH THE REST OF OUR NORTHWEST WISCONSIN ZONES AS OF 20Z. HIGHS WILL ONLY BE IN THE MID 60S FAR NORTH AND THE LOWER TO MID 70S ACROSS OUR SOUTHERN ZONES. KEEPING THE NORTHLAND SLIGHTLY COOLER THAN NORMAL.
916 PM EDT SUN AUG 2 2015 A COLD FRONT WILL BRING SCATTERED SHOWERS AND THUNDERSTORMS TO START THE WORK WEEK. ATTENTION WILL THEN TURN TO THE LOW PRESSURE SYSTEM CURRENTLY OVER WISCONSIN. WHILE THE LOW MOVES EAST OVERNIGHT. THE ASSOCIATED COLD FRONT WILL SLIDE TO THE SOUTHEAST. OVERNIGHT LOWS SHOULD REMAIN A BIT WARMER THAN LAST NIGHT CONSIDERING WINDS WILL NOT GO CALM AS WELL AS HIGH CLOUDS MOVING IN BEFORE THE FRONT. MONDAY HIGHS WILL BE A FEW DEGREES COOLER THAN TODAY WITH THE ARRIVAL OF THE COLD FRONT.
1145 PM CDT SUN AUG 2 2015 A COLD FRONTAL BOUNDARY PUSHING INTO THE SOUTHEAST CORNER OF IOWA THIS EVENING HAS TRIGGERED SOME STRONG THUNDERSTORMS AHEAD OF IT. 19Z/2PM SURFACE ANALYSIS SHOWS COLD FRONT EXTENDING FROM THE UPPER PENINSULA OF MICHIGAN TO NORTHERN IOWA. COLD FRONT WILL GRADUALLY SETTLE SOUTHWARD LATER THIS EVENING. BY THUR, THE UPPER FLOW APPEARS TO GO BACK TO NORTHWEST AND MODELS START HIGH PRESSURE TO BUILD IN FROM NORTH, DRYING THINGS OUT BY FRI. FRI TO SUN APPEAR TO BE COOL AND DRY WITH HIGH PRESSURE IN AREA. A COLD FRONT CURRENTLY ORIENTED FROM NEAR CHICAGO TO SOUTHEAST IOWA WILL CROSS THE CENTRAL IL TERMINALS FROM AROUND 09-12Z.
RAP ANALYSIS SHOWS A SLUG OF DRY H100-H70 AIR HAS WRAPPED ITSELF AROUND THE WRN FLANK OF THE LOW AND INTO THE SE GOMEX. THE OVERALL AIRMASS REMAINS QUITE UNSTABLE WITH A SIG AMNT OF MID LVL VORTICITY OVER THE ERN GOMEX ASSOCD WITH THE LOW. PROXIMITY TO THE RAIN SHIELD ALONE WILL REQUIRE OVERNIGHT POPS AS THE LOW DRIFTS ACRS THE ERN PANHANDLE. TIGHTER SFC/LOW LVL PGRAD N OF THE CAPE MAY ALLOW WINDS TO REACH INTO THE 15-20KT RANGE AS THE LOW PUSHES ACRS THE ERN PANHANDLE THRU SUNRISE.
A WELL DEFINED LOW PRESSURE AREA LOCATED ALONG THE COAST OF THE FLORIDA BIG BEND WILL EASE NORTHEASTWARD OVERNIGHT. THE LOW PRESSURE AND HIGH PRESSURE ACROSS SOUTHERN FL WILL MAINTAIN A TIGHT PRESSURE GRADIENT WITH ROBUST ONSHORE FLOW. LOW PRESSURE TO THE NORTH AND HIGH PRESSURE ACROSS SOUTHERN FL WILL MAINTAIN A TIGHT GRADIENT ACROSS THE WATERS WITH VERY ROBUST WINDS.
DRY AND HOT CONDITIONS RETURN ONCE AGAIN DURING THE DAY ON MONDAY WITH DRY AIR AND SURFACE RIDGING DOMINATING THE WEATHER PATTERN.
820 PM EDT SUN AUG 2 2015 FAIR WEATHER WILL CONTINUE INTO THE OVERNIGHT AS HIGH PRESSURE SLIDES OFF TO OUR SOUTH. A COLD FRONT IS EXPECTED TO PASS THROUGH ON MONDAY.
A WEAK UPPER LEVEL LOW PRESSURE SYSTEM WILL SLOWLY TRACK SOUTH TO NORTH ACROSS THE REGION TONIGHT THROUGH EARLY MONDAY.
AS HIGH PRESSURE TO OUR W CONTINUES TO DOMINATE THE WEATHER PATTERN. /ISSUED 833 PM CDT SUN AUG 2 2015/ THE SUBTROPICAL RIDGE THAT DOMINATED DURING MUCH OF JULY FORECAST TO CONTINUE HOT WEATHER THROUGH THIS FIRST WEEK OF AUGUST.
1223 AM EDT MON AUG 3 2015 HIGH PRESSURE WILL CROSS THE AREA OVERNIGHT INTO MONDAY. A COLD FRONT WILL APPROACH MONDAY NIGHT.
AND PROPAGATE SOUTHWARD INTO THE HIGHER THETA-E AIR. THE 12Z MODELS CONTINUE TO HINT AT SOME CONVECTION MOVING OFF OF THE APPROACHING COLD FRONT AND FLIRTING WITH SOUTHWEST INDIANA STRADDLING 12Z MONDAY.
1020 PM EDT SUN AUG 2 2015 HIGH PRESSURE WILL CROSS THE AREA OVERNIGHT INTO MONDAY. A COLD FRONT WILL APPROACH MONDAY NIGHT.
646 PM CDT SUN AUG 2 2015 HIGH PRESSURE CONTINUES TO SETTLE OVER THE REGION BRINGING SCATTERED SKIES AND LITTLE TO NO PCPN. COOL HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE AREA TONIGHT.
WITH WEAK SURFACE RIDGING IN PLACE OVER THE OZARKS. A COLD FRONT WAS DROPPING SOUTH OVER NEB/IA AND DOWN INTO NORTHERN KS. THE HIGHEST TEMPERATURES ARE EXPECTED ACROSS SOUTHEAST OKLAHOMA AND THE RIVER VALLEY OF WEST-CENTRAL ARKANSAS.
UPPER LEVEL ANALYSIS CONTINUES TO SHOW RIDGE OVER THE WESTERN CONUS. THE HOT AND MAINLY DRY WEATHER PATTERN OF THE LAST WEEK OR SO WILL CONE TO AN END EARLY THIS WEEK AS THE RIDGE TO THE WEST BREAKS DOWN ENOUGH TO ALLOW A SERIES OF UPPER LEVEL DISTURBANCES TO CROSS THE REGION.
HIGH PRESSURE CONTINUES TO SETTLE OVER THE REGION BRINGING SCATTERED SKIES AND LITTLE TO NO PCPN. COOL HIGH PRESSURE WILL CONTINUE TO BUILD INTO THE AREA TONIGHT.
1100 PM CDT SUN AUG 2 2015 PRECIPITATION CHANCES WILL FADE FOR THE REMAINDER OF THE AFTERNOON ACROSS WEST CENTRAL WI AS A COLD FRONT PUSHES EAST AND SOUTH OF THE FA. THE RIDGE AXIS WILL STRETCH FROM THE DAKOTAS TO IA/MO ON MONDAY. THE ONLY EXCEPTION IS OVER THE FAR NORTHEAST CWA (RICE LAKE AND LADYSMITH) WHERE AN INCREASE IN AFTERNOON CLOUDINESS IS FORECAST ALONG WITH A FEW LIGHT SHOWERS DUE TO THE COLD TROUGH ALOFT AS ONE HEADS NORTHEAST ACROSS THE WESTERN GREAT LAKES.
VFR THROUGH THE NEXT 24 HOURS UNDER HIGH PRESSURE. LOOK FOR THE RIDGE TO SLIP SOUTH OF THE MID STATE OVERNIGHT, ALLOWING FOR SLIGHTLY WARMER TEMPERATURES STARTING ON MONDAY AND INCREASING DEW POINTS.
A SHORT WAVE TROUGH IN SRN NEVADA WILL MOVE NORTH MONDAY BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS TO OUR CWA. THE TROUGH.
855 PM PDT SUN AUG 2 2015 HIGH PRESSURE ALOFT BUILDING TO THE SOUTHEAST WILL CREATE HOT WEATHER OVER PORTIONS OF THE DESERTS. BREEZY WEST WINDS IN THE MOUNTAINS AND DESERTS AND BELOW NORMAL HIGH TEMPERATURES TO END THE WEEK AS LOW PRESSURE MOVES ACROSS NORTHERN CA. AND A BROAD UPPER-LEVEL RIDGE STRETCHING FROM WESTERN TEXAS TO OFF THE CENTRAL BAJA COAST.
1202 AM EDT MON AUG 3 2015 PERSISTENT LOW PRESSURE ALOFT.
727 PM EDT SUN AUG 2 2015 HIGH PRESSURE EXITS LATER TONIGHT. A COLD FRONT APPROACHES MONDAY AND THEN CROSSES MONDAY NIGHT. WAVES OF LOW PRESSURE WILL PULL THE FRONT BACK NORTH MID TO LATE WEEK.
UPPER TROUGHING OVER THE WESTERN STATES IS PROGGED TO MOVE OVERTOP OF THE UPPER RIDGE OVER THE SOUTHWEST.
WEAK TROF EXTENDS NEWD INTO SE GA WITH LOW LEVEL CONVERGENCE RESULTING IN SCT CONVECTION IN THAT AREA DURING THE AFTERNOON PEAK DAYTIME HEATING. SOMEWHAT LOWER MAX TEMPS IN NE FL DUE TO PRECIP AND CLOUDS COMPARED TO SE GA WHICH ARE FCST IN THE LOWER 90S.
LOW LEVEL SOUTHERLY FLOW WILL DEVELOP AS ONE LOW PRESSURE SYSTEM NEAR THE FLORIDA PANHANDLE MOVES OFF TO THE EAST. AND ANOTHER LOW PRESSURE SYSTEM FORMS OVER THE SOUTHERN ROCKIES. THE FLAT UPPER LEVEL RIDGE WILL BE CENTERED OVER THE SOUTHWEST U. THE POSITION OF THE RIDGE WILL ALLOW FOR MAINLY DAYTIME HEATING AND SEA BREEZE CONVERGENCE TYPE SHOWERS AND THUNDERSTORMS.
739 PM EDT SUN AUG 2 2015 PERSISTENT LOW PRESSURE ALOFT.
A RIDGE OF HIGH PRESSURE AT THE SURFACE IS BUILDING SOUTHWARD ACROSS THE CWA. THIS HIGH WILL CONTINUE TO BRING THESE CONDITIONS LARGELY INTO MONDAY NIGHT EVEN. BUT WILL ALSO BEGIN WATCHING AN AREA OF LOW PRESSURE FORMING OVER THE HIGH PLAINS.
531 PM MDT SUN AUG 2 2015 A RIDGE WILL RESIDE OVER THE ROCKIES THROUGH MONDAY. MAX TEMPERATURES MONDAY WILL RANGE FROM THE UPPER 80S IN EASTERN COLORADO TO THE LOWER 90S IN THE EASTERN FA.
UPPER RIDGE FLATTENING SOME THROUGH THE PERIOD AND A FRONTAL BOUNDARY SHOULD DRIFT SOUTH INTO GA BY MORNING.
657 PM EDT MON MAY 18 2015 A COLD FRONT WILL PUSH ACROSS THE AREA TONIGHT AND EARLY TUESDAY. BUT THE HIGH MOISTURE WILL TIELD SOME VERY HIGH RAIN RATES. ASSOCIATED WITH A COLD FRONT CLEARING THE REGION. RESPECTABLE ANTICYCLONE WILL BUILD IN FROM THE WEST WITH A PUSH OF NOTICEABLY COOLER AND DRIER AIR FILTERING IN FOR MIDWEEK. WHILE TROUGH CONTINUES TO SPIN OVER EASTERN CANADA. DAYTIME TEMPS WILL REBOUND A BIT WARMER EACH DAY.
1210 PM CDT MON MAY 18 2015 COOLER TEMPERATURES THROUGH MID WEEK AND OUR NEXT CHANCE FOR RAIN MOVING IN AS EARLY AS TUESDAY AFTERNOON ARE THE MAIN POINTS OF THE FORECAST. UPPER LOW THAT BROUGHT RAIN/THUNDERSTORMS TO THE AREA THIS WEEKEND WAS LIFTING NORTHEAST THROUGH NORTHERN MINNESOTA THIS MORNING. HIGH PRESSURE SETTLING INTO THE REGION TONIGHT WILL BRING DECENT RADIATIONAL COOLING REGIME TO AT LEAST NORTHEAST NEBRASKA WHERE DRIEST AIR AND LIGHTEST WINDS WILL ALLOW LOWS TO DROP INTO THE MIDDLE 30S. THOSE MID/HIGH CLOUDS WILL PROCEED ANOTHER UPPER LOW/TROUGH INTO THE PLAINS AT MID WEEK. TROUGH ALONG CALIFORNIA COAST THIS MORNING IS NOT QUITE AS DEEP AS FORECAST 24 HOURS AGO.
AS STORMS MOVE OFF THE HIGHER TERRAIN TOWARD THE NORTHEAST, LOOKING FOR MERGING OF CELLS INTO A LARGER-SCALE COMPLEX AIDED BY DEVELOPMENT OF A SOUTHEASTERLY LOW LEVEL JET THIS EVENING WHICH WILL SUSTAIN INSTABILITY ACROSS THE AREA.
A cooler than normal air mass across central Montana has kept an easterly wind gradient across the Northern Rockies. There could be a few isolated thunderstorms, but these should remain over the southern portion of Idaho County and possibly over the higher terrain in Lemhi County. As we head into planting season for many gardeners in the warmer Bitterroot and Missoula valleys, growers should keep current on the low temperature forecasts for sensitive plants. There is some risk for Missoula too, however stronger east winds from Hellgate canyon should keep the Missoula Valley mixed up and thus a few degrees warmer tonight.
249 PM EDT MON MAY 18 2015 HIGH PRESSURE WILL WEAKEN AND SHIFT EAST TONIGHT ALLOWING HIGHER LEVELS OF ATMOSPHERIC MOISTURE INTO OUR REGION. AS THE RIDGE MOVES EAST MOISTURE ADVECTION WILL INCREASE OVER THE AREA ALLOWING PWAT VALUES TO RISE TO AROUND 1.
WARMER TEMPERATURES TODAY AHEAD OF YET ANOTHER SYSTEM MOVING INTO THE AREA. COOLER TEMPERATURES ARE EXPECTED TUESDAY WITH SOMEWHAT LIGHTER WINDS.
336 PM EDT MON MAY 18 2015 A COLD FRONT DROPPING ACROSS THE AREA THIS AFTERNOON WILL BRING A CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS THROUGH EARLY EVENING. COOLER AND DRIER AIR WILL SETTLE IN FOR THE WEEK. HIGHS THIS AFTERNOON WILL REACH THE LOWER 80S.
A COLD FRONT WILL EXIT CENTRAL INDIANA TONIGHT ALLOWING COOL. CANADIAN HIGH PRESSURE OVER THE NORTHERN PLAINS TO SETTLE ACROSS THE OHIO VALLEY THROUGH THE MIDDLE OF THE WEEK.
555 PM CDT Mon May 18 2015 Tonight - Tuesday: A seasonally cool area of high pressure over the Northern Plains will press southward overnight into Tuesday yielding temperatures 5 to 10 degrees below average.
555 PM EDT MON MAY 18 2015 SCATTERED SHOWERS AND THUNDERSTORMS WILL COME TO AN END AS A COLD FRONT MOVES THROUGH THE REGION TUESDAY MORNING.
129 PM MST MON MAY 18 2015 LOW PRESSURE WILL SLOWLY MOVE THROUGH THE AREA THIS EVENING. FOLLOWING THE TROUGH. ANOTHER UPPER LEVEL LOW PRESSURE SYSTEM WILL APPROACH THE REGION FROM CALIFORNIA LATE IN THE WEEK ALTHOUGH THE PRIMARY IMPACTS WILL BE COOLER TEMPERATURES AND INCREASED CLOUD COVER. LOW PRESSURE CONTINUES ITS SLOW EASTWARD PROGRESSION THIS AFTERNOON AND IS CENTERED OVER WESTERN NEVADA AS OF 19Z.
248 PM EDT MON MAY 18 2015 A COLD FRONT WILL PUSH ACROSS THE AREA TONIGHT AND EARLY TUESDAY. BUT THE HIGH MOISTURE WILL TIELD SOME VERY HIGH RAIN RATES. IN THE WAKE OF THE COLD FRONTAL PASSAGE. A RESPECTABLE ANTICYCLONE WILL EXTEND SEWD FROM THE UPPER MIDWEST WITH COOLER AND NOTICEABLY DRIER AIR FILTERING INTO THE REGION FOR THE MID TO LATE WEEK PERIOD.
322 PM EDT MON MAY 18 2015 A COLD FRONT WILL PUSH ACROSS THE AREA TONIGHT AND EARLY TUESDAY. BUT THE HIGH MOISTURE WILL TIELD SOME VERY HIGH RAIN RATES. ASSOCIATED WITH A COLD FRONT CLEARING THE REGION. RESPECTABLE ANTICYCLONE WILL BUILD IN FROM THE WEST WITH A PUSH OF NOTICEABLY COOLER AND DRIER AIR FILTERING IN FOR MIDWEEK. WHILE TROUGH CONTINUES TO SPIN OVER EASTERN CANADA. DAYTIME TEMPS WILL REBOUND A BIT WARMER EACH DAY.
Mid level zonal flow continues over the central plains, in between systems as the next closed low rotates over California. Cool air advecting into northern Kansas is keeping highs a tad cooler compared to much of the area near 60 degrees this afternoon. For tomorrow, the open wave trough is progged to pivot the Four Corners region before lifting northeast towards the plains in the evening. Short term guidance depicts a decent ridge axis of drier air in the lowest 850 mb towards the surface. Highs are fairly cooler tomorrow with the denser clouds arriving by mid afternoon.
Cooler and Drier Weather Moves in Tonight and Tomorrow. Unsettled Weather Pattern and Very Wet by the A thin band of cumulus clouds on the visible satellite shows nicely where the cold front is currently located across the Missouri Ozarks. A cooler and drier airmass will move in tonight. Dewpoints in the lower to middle 40s across northwest Missouri will move into the Missouri Ozarks by morning. It will be perfect open the windows type weather tonight with lows in the middle 40s across central Missouri to the lower 50s across southern Missouri. A very pleasant day is heading our way for Tuesday with high pressure filtering in and mostly sunny skies.
304 PM EDT MON MAY 18 2015 AN APPROACHING LOW PRESSURE SYSTEM WILL BRING UNSETTLED WEATHER TO THE REGION THROUGH THE NEXT 48 HOURS. A WEAK COLD FRONT WILL MOVE THROUGH TOMORROW EVENING AND WILL PROVIDE THE FOCUS FOR SOME THUNDERSTORM ACTIVITY.
112 PM CDT MON MAY 18 2015 ADDED MENTION OF DRIZZLE TODAY AND POSSIBLY FREEZING DRIZZLE TO THE FORECAST FOR TONIGHT. WINDY CONDITIONS AND SNOW SHOWERS WERE OCCURRING ON THE BACKSIDE OF THE LOW OVER NORTH DAKOTA WHERE TEMPERATURES AROUND 30 HAD FALLEN FROM THE MID 50S OF YESTERDAY MORNING. THIS COLD LAYER WILL THICKEN TO ABOUT A 800 MB WITH A MUCH WARMER LAYER ALOFT TONIGHT. HIGH PRESSURE WILL BUILD IN TUESDAY.
A COLD FRONT CROSSES TUESDAY. WILL SEE A FEW DEGREES OF COOLING TUESDAY OVER TODAYS HIGHS AS COOLER AIRMASS MOVES IN.
A MODEST SOUTHWEST TO DOWNSTREAM OF MID LEVEL TROUGHING EDGING EAST FROM CALIFORNIA TOWARD THE GREAT BASIN AND FOUR CORNERS. WEAK H5 RIDGING WILL OCCUR OVER THE SOUTHERN PLAINS. AS THE MID LEVEL LOW PRESSURE MOVES NORTHEAST.
AS THE PACIFIC STORMS CENTER CLOSES ON THE AREA COOLER TEMPERATURES ADVECT OVER THE REGION WHICH. ANOTHER CLOSED LOW WILL MOVE EAST ACROSS THE GREAT BASIN AND IMPACT OUR WEATHER THROUGH TUESDAY. THE AREA OF LOW PRESSURE WILL HAVE MOVED OVER WY AS PRECIP ENDS FROM SOUTH TO NORTH OVERNIGHT.
TONIGHT SURFACE TEMPS HAVE RISEN INTO THE LOW TO MID 80S THIS AFTERNOON. BUT OVERALL LOW LEVEL CONVERGENCE WITH THE COLD FRONT LOOKS TO BE WEAK AND MID LEVEL LAPSE RATES ARE WEAK AS WELL.
349 PM EDT MON MAY 18 2015 WARM AIR ADVECTION PRECIPITATION WILL CONTINUE THIS AFTERNOON AND INTO THE OVERNIGHT HOURS AHEAD OF AN APPROACHING COLD FRONT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TUESDAY WITH COLD FRONTAL PASSAGE. PRE FRONTAL TROUGH CROSSES OUR FORECAST AREA TONIGHT BRINGING A LINE OF SHOWERS WITH ISOLATED THUNDER ACROSS. ON TUESDAY A COLD FRONT WILL PUSH WEST TO EAST ACROSS OUR FORECAST AREA.
219 PM PDT Mon May 18 2015 Variable clouds and mainly mountain showers and afternoon thunderstorms through the week as a series of weak low pressure systems move across California.