Aikyam-Lab/Synoptic-Bench huggingface dataset:
WITH THE CORE OF THE CLOSED LOW SPREADING ACROSS THE SOUTHERN VALLEYS. MORE PRECIP IN THE FORECAST TODAY AS THE NEXT AREA OF LOW PRESSURE CONTINUES TO MOVE TOWARDS THE FOUR CORNERS. MAYBE AS MUCH AS 4 TO 6 INCHES BUT ONLY FOR THE HIGHEST ELEVATIONS. THE CORE OF THIS LOW PRESSURE CENTER IS RELATIVELY WARM AT -20C WHILE H7 TEMPS OF -4C AT 6AM WILL WARM TO -1 TO -2C BY NOON.
| LOW PRESSURE CENTERED OVER MISSOURI WAS BRINGING WARM AIR ADVECTION/ISENTROPIC LIFT TO OUR AREA DURING THE NIGHT AS A DIFFUSE WARM FRONT PASSES NORTH AND EAST. THE WARM FRONT WILL BECOME BETTER DEFINED AS IT MOVES TO OUR NORTH AND EAST TODAY. THE LOW CENTER WILL MOVE EAST ACROSS OH AND INTO PA TONIGHT. SENDING A COLD FRONT SOUTHEAST INTO KY. IT WILL STALL AND ANOTHER LOW PRESSURE WAVE RIPPLING NORTHEAST ALONG THE FRONT WILL BRING A POTENTIAL FOR MORE SHOWERS/STORMS ON MONDAY. WITH MUCH COOLER WEATHER ANTICIPATED HEADING THROUGH THE FIRST WEEK OF MAY.
1146 AM EDT SUN MAY 1 2016 A MOIST SOUTHERLY FLOW WILL CONTINUE INTO THE FORECAST AREA THROUGH MONDAY AHEAD OF A SLOW MOVING COLD FRONT.
WEAK SURFACE COLD FRONT. THE UPPER LOW OVER ARIZONA IS EXPECTED TO OPEN INTO A WAVE AS IT LIFTS NORTHEAST INTO THE SOUTHERN HIGH PLAINS TONIGHT. FOCUS WILL SHIFT TO THE WEST TONIGHT AS HIGH PRESSURE SURGING SOUTH THROUGH WEST TEXAS WILL PUSH A FRONTAL BOUNDARY INTO AREA TONIGHT. AIR MASS WILL BE UNSTABLE AHEAD OF THE FRONT AND SOME OF THE HI-RES MODELS DEPICT STRONG CONVECTION DEVELOPING OVER THE HIGHER TERRAIN IN MEXICO AND MOVING SOUTHEAST WITH THE FRONT. SO WILL CONTINUE THE HIGH RISK FOR RIP CURRENTS TODAY.
/ISSUED 429 AM CDT SUN MAY 1 2016/ UPPER LEVEL LOW TO OUR NORTHEAST IS SPINNING OVER NORTHERN KANSAS WHILE ANOTHER UPPER LEVEL LOW IS NEARLY STATIONARY OVER ARIZONA. THIS SHALLOW LAYER OF COLDER AIR COMBINED WITH THE ASCENT FROM THE APPROACHING UPPER LEVEL LOW SHOULD BE ENOUGH FOR SCATTERED SHOWERS TO FORM ACROSS THE AREA AGAIN LATER THIS MORNING AND INTO THE AFTERNOON. OVERALL FORCING WILL WEAKEN AS THE UPPER LOW DISSOLVES OVER NEW MEXICO AND HAVE ENDED MOST POPS LATE TONIGHT AND A SHIFT TO PERHAPS SOME LINGERING DRIZZLE EARLY MONDAY MORNING AS THE LOWEST LAYERS STILL LOOK FAIRLY SATURATED. GUIDANCE AGAIN SUGGESTS NEAR FREEZING TEMPERATURES COULD AGAIN BE POSSIBLE IN THE FAR NORTHWEST.
AS LOW PRESSURE TO OUR SOUTH SLOWLY FILLS. STRONG PERSISTENT HIGH PRESSURE REMAINS LOCKED NORTH OF THE US /CANADIAN BORDER EARLY THIS MORNING. A BROAD AREA OF LOW PRESSURE OVER THE MID AND LOWER MISSISSIPPI VALLEY IS SLOWLY PUSHING EAST THRU THE OHIO VALLEY. LOW PRESSURE WILL CONTINUE TO SLIDE EAST THRU THE OHIO VALLEY TODAY. HIGH PRESSURE WILL BECOME REESTABLISHED ACROSS THE WRN GREAT LAKES TONIGHT IN THE WAKE OF THE DEPARTING LOW. AT 500 MB, THE LOW BEGINS TO BUILD INTO HUDSON BAY AS A BROAD AREA OF TROUGHING REMAINS OVER THE REGION.
FAIRLY HIGH DEWPOINTS AND TEMPERATURES IN THE LOWER 70S CLIMBING INTO THE MID TO UPPER 70S LATER TODAY SHOULD ALLOW CAPE VALUES BETWEEN 1500 AND 2000 J/KG. WELL AHEAD OF AN APPROACHING COLD FRONT FROM THE W.
UPPER RIDGE BUILDING INTO THE REGION TODAY WITH MOSTLY SUNNY SKIES AND WARMER TEMPERATURES. THE RIDGE WILL MOVE TO THE EAST MONDAY AS AN UPPER LEVEL TROUGH APPROACHES THE WEST COAST. INSTABILITY WILL BE INCREASING IN RESPONSE TO THE UPPER TROUGH AND SOUTHERLY FLOW ALOFT. AN UPPER LEVEL RIDGE WILL BUILD OVER THE PACIFIC NORTHWEST AND SOUTHWEST CANADA TODAY. THIS RIDGE WILL REMAIN OVER THE REGION THROUGH MONDAY, THOUGH THE RIDGE AXIS WILL BEGIN TO SHIFT EAST MONDAY. THIS HEATING WILL CAUSE SOME WEAK SURFACE BASED INSTABILITY THAT WILL CAUSE AFTERNOON AND EARLY EVENING CONVECTIVE CLOUDS OVER THE HIGHER TERRAIN. WITH THE RIDGE AXIS SHIFTING EAST MONDAY INTO MONDAY NIGHT, WILL START TO SEE THE DEVELOPMENT OF A MOIST SOUTHERLY FLOW OVER OUR WESTERN MOST ZONES. HIGH TEMPS WILL BE A FEW DEGREES WARMER.
AS A WEAKENING ATLANTIC HIGH PRESSURE CELL IS OFFSET BY LOWERING PRESSURES OVER THE CENTRAL/WESTERN GULF OF MEXICO. CURRENT SITUATION AND ANALYSIS -- AIR TEMPERATURES HAVE JUMPED INTO THE LOWER TO MID 80S ALREADY WITH FULL MAY SUN AND STIFF SOUTHEAST BREEZES. PROGNOSTIC OVERVIEW -- WEAKENING HIGH PRESSURE OVER THE SUBTROPICAL NORTH ATLANTIC LIKELY WILL BE OFFSET BY LOWER PRESSURES OVER THE WESTERN GULF BASIN. A HIGH PRESSURE AREA WILL PERSIST OVER THE WESTERN NORTH ATLANTIC THIS AFTERNOON THROUGH TONIGHT. THE HIGH PRESSURE AREA WILL WEAKEN SLOWLY MONDAY AND MONDAY NIGHT.
910 AM MDT SUN MAY 1 2016 HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS OUR FORECAST AREA TODAY RESULTING IN SUNNY SKIES AND TEMPERATURES WARMING TO NORMAL READINGS FOR THIS TIME OF YEAR. UPPER RIDGING AND DRIER AIR WILL BUILD OVER THE AREA TODAY. UPPER LEVEL HIGH PRESSURE CONTINUES TO STRENGTHEN OVER THE AREA TONIGHT AS VORTICITY DROPS S OUT OF CANADA INTO THE NORTHERN PLAINS. UPPER LEVEL RIDGING REMAINS IN CONTROL FOR MON AND MODEL CONSENSUS BRINGS THE VORTICITY INTO SD/NE. DRY CONDITIONS CONTINUE MON NIGHT UNDER THE RIDGE.
NORTH AND CENTRAL TEXAS CURRENTLY RESIDE ON THE NORTH SIDE OF A COLD FRONT. LARGE SCALE LIFT WILL INCREASE ACROSS NORTH AND CENTRAL TEXAS THROUGH TONIGHT AS THE UPPER LOW OPENS UP AND LIFTS TOWARD THE CENTRAL PLAINS. THE POTENTIAL FOR SURFACE BASED STORMS WILL DECREASE OVERNIGHT AND MONDAY AS A REINFORCEMENT OF DRY AND COOL AIR FILTERS IN FROM THE NORTH WITH THE PASSAGE OF THE UPPER TROUGH AXIS. PRECIPITATION CHANCES WILL DECREASE FROM NORTH TO SOUTH THROUGH THE AFTERNOON MONDAY AS THE UPPER LOW TRANSLATES SLOWLY NORTHEAST AS DEPTH OF THE DRY/COOL AIR INCREASES.
SO WILL THE COLD FRONT ACROSS OUR EASTERN ZONES AND THAT COUPLED WITH DAYTIME HEATING AND DISTURBANCES ALOFT MOVING THIS WAY FROM THE SOUTHWEST. /ISSUED 408 AM CDT SUN MAY 1 2016/ ONGOING ISOLD CONVECTION ACROSS PORTIONS OF THE REGION THIS MORNING LOOKS TO BE ASSOCIATED WITH A SLOWLY ADVANCING COLD FRONT LOCATED ALONG A LINE FROM NEAR LUFKIN TO EL DORADO.
WITH TEMPSPUSHING INTO THE LOWER 80S FOR MOST AREAS. IT WILLBE HUMID WITH DEW POINTS IN THE LOW TO MID 60S. WEAK LOW PRESSURE WILL BE MOVING ALONG THE OHIO VALLEY WITH A WEAK TRAILING COLD FRONT APPROACHING MID TN FROM THE WEST. FROM PREVIOUS DISCUSSION AS A COLD FRONT STARTS TO SLOWLY WORK ITS WAY INTO THE MID- STATE LATE TONIGHT. THE COLD FRONT GETS HUNG UP FOR SEVERAL HOURS ACROSS THE MID-STATE ON MONDAY.
940 AM EDT SUN MAY 1 2016 HI PRES RIDGE BUILDING OVER THE W ATLC WILL BE THE DOMINANT WX FEATURE FOR CENTRAL FL. MID LVL THERMAL TROF ALONG OVER THE NRN PENINSULA HAS PUSHED H50 TEMPS DOWN TO ARND -10C ALONG AND N OF I-4. THESE ARE ABOUT AS STEEP AS THEY ARE GOING TO GET AS THE AXIS OF AN H50 THERMAL TROF IS EMBEDDED WITHIN A DEEP WRLY FLOW THAT WILL PUSH IT OFFSHORE BY LATE AFTN.
1208 PM EDT SUN MAY 1 2016 A COUPLE OF LOW PRESSURE SYSTEMS WILL PROVIDE RAIN OVER THE REGION INTO EARLY MONDAY. A DIGGING UPPER LEVEL TROUGH OVER THE NORTHEAST WILL HELP SUPPORT A LOW PRESSURE SYSTEM ALONG THE EAST COAST.
631 AM CDT SUN MAY 1 2016 Upper-level low pressure continues to spin across the Central Plains this morning. with latest surface obs showing an inverted trough extending northwest across our area from parent low pressure now centered just north of STL. Fcst models all in general agreement that lgt shwrs will develop later this morning as weak frontogenesis combines with increased forcing for ascent as the upper low inches closer to the area. As this upper low tracks east. This combined with abundant cloud cover should lead to noticeably cooler temps today with many places north of I-70 struggling to reach the 60 degree mark. Overnight lows should fall into the lower to middle 40s across much of the forecast area.
427 AM PDT SUN MAY 1 2016 High pressure builds Today and Monday, resulting in a warming trend, with temperatures climbing into the mid 70s to low 80s.
AND THIS IS WHERE THE HIGHEST PRECIPITABLE WATER VALUES CURRENTLY RESIDE. PROBABLY MEANDERING NORTHWEST/SOUTHEAST OF THE HIGHWAY 59 CORRIDOR INTO LATE EVENING. PRECIP WILL THEN TAPER OF AND WE'LL HEAD INTO A MUCH NEEDED DRYING TREND AS UPPER RIDGE BUILDS INTO THE REGION DURING THE MID AND LATE WEEK TIME PERIOD. 47 GENERALLY LIGHT TO MODERATE ONSHORE WINDS TO PREVAIL TODAY WITH THE COLD FRONT LINGERING OVER INLAND AREAS OF SE TX.
an upper low was positioned over Arizona and New Mexico while a second upper low was located over Kansas and Nebraska. Southerly upper flow from the Arizona upper low was converging with the northerly upper flow from the Kansas upper low. The better precip chances continue to look to be tonight into Monday as the Arizona upper low moves into the Southern Plains.
810 AM EDT SUN MAY 1 2016 A MOIST SOUTHERLY FLOW WILL CONTINUE INTO THE FORECAST AREA THROUGH MONDAY AHEAD OF A SLOW MOVING COLD FRONT.
HIGH PRESSURE ALOFT WILL BRING DRY AND WARMER WEATHER THROUGH MONDAY.
ASSOCIATED WITH CLOSED UPPER LOW CENTERED OVER SW NE/NW KS WILL MOVE EAST THROUGH THE DAY WITH THE MAIN FEATURE SLOWLY OPENING AND SHEARING OUT AS IT CROSSES INTO THE OHIO VALLEY. A WARM FRONT WAS NOTED AT 6Z FROM SOUTH OF DANVILLE IL TO NORTH OF MARION AND LIMA OHIO WITH UPR 50 DEWPOINTS SOUTH OF THE FRONT. A LULL IN PRECIPITATION IS EXPECTED UNTIL THE MAIN UPPER LOW ENTERS EASTERN ILLINOIS DURING THE LATE AFTERNOON HOURS. KEY FACTORS IN DETERMINING RISK WILL BE 1)POCKETS OF HEATING LATE AM INTO MID AFTERNOON IN BETWEEN WAVES 2)LOCATION OF WARM FRONT 3)AMOUNT OF MOISTURE IN PLACE OR QUICKLY ADVECTING IN.
/ISSUED 408 PM EDT SAT APR 23 2016/ A FRONTAL SYSTEM EXITS THE REGION TODAY AS THE MID-LEVEL TROUGH DEPARTS LATER TODAY INTO TONIGHT. AS TODAY'S WESTERLY FLOW FLIPS AND EASTERLY FLOW RETURNS FOR MUCH OF THE PERIOD, THE WARMER TEMPERATURES WILL SHIFT FROM THE EAST COAST TO ALONG THE INTERIOR AND WEST COAST PORTIONS OF THE FORECAST AREA.
A 500MB TROUGH OVER NORTHERN MEXICO INTO THE TEXAS BIG BEND REGION AND A WEAK BOUNDARY EXTENDING ACROSS THE NORTHERN PORTIONS OF NUEVO LEON AND TAMAULIPAS. LOW TEMPERATURES TONIGHT WILL RANGE FROM THE MID TO UPPER 60S ACROSS THE RANCHLANDS TO THE LOWER 70S IN THE RIO GRANDE VALLEY UNDER MOSTLY CLOUDY SKIES.
A CLOSED UPPER SYSTEM MOVING EAST OVER THE NORTHERN US ROCKIES PUSHES AN UPPER RIDGE OVER AND EAST OF THE MISSISSIPPI RIVER. WITH THE UPPER RIDGE STARTING TO COUNTERACT THE BETTER RADIATIONAL COOLING DUE TO THE DRY AIRMASS OVER THE FA. WITH THE UPPER RIDGE PASSING OVER. WENT ON THE HIGH SIDE OF THE GUIDANCE.
UPPER RIDGING DOMINANT AT THIS TIME ACROSS THE SOUTHERN PLAINS/ LOWER MISS VALLEY. A FLAT UPPER LEVEL RIDGE WILL TRANSITION INTO SOUTHWEST FLOW ALOFT AS A DEEP UPPER TROUGH BECOMES CUTOFF FROM THE WESTERLIES AS IT DIGS INTO THE INTER-MOUNTAIN WEST.
WINDY AND SLIGHTLY COOLER CONDITIONS ARE EXPECTED THIS WEEKEND WITH THE BULK OF THE WIND THROUGH THIS AFTERNOON. AS THE TROUGH/ASSOCIATED COLD FRONT CROSSES NORTHERN AZ AND WINDS TURN MORE WESTERLY, WIND SPEEDS ARE EXPECTED TO DROP OFF LATE THIS AFTERNOON. A COLD FRONT CURRENTLY MOVING INTO WESTERN ARIZONA WILL CONTINUE TO PROGRESS EASTWARD ACROSS THE STATE THIS MORNING.
TONIGHT APPEARS TO BE AN IDEAL RADIATIONAL COOLING SETUP, WITH THE RIDGE AXIS MOVING OVERHEAD, CALM TO VERY LIGHT WIND, AND LITTLE TO NO CLOUD COVER EXPECTED.
A SERIES OF PACIFIC LOW PRESSURE SYSTEMS ARE EXPECTED TO AFFECT OUR WEATHER THROUGH THE REMAINDER OF THIS WEEKEND.
STRONG SOUTHERLY GRADIENT DEVELOPS TODAY AS LOW PRESSURE DEEPENS WEST OF THE BLACK HILLS. HIGHS MOST LIKELY FROM THE MID 70S TO LOWER 80S WITH DEW POINTS ALSO IN THE LOWER 50S. SO WOULD NOT BE SURPRISED TO SEE SOME SITES ONLY DROP INTO THE LOWER 60S. TOUGH CALL ON POPS ON SUNDAY AS UPPER LOW MOVES INTO THE AREA. BUT CAN/T REALLY IDENTIFY TRIGGER MECHANISM BEYOND THE UPPER LOW.
An upper low pressure system trekking into northwest Wyoming will allow widespread precipitation to continue well into tonight.
AN UPPER LEVEL TROUGH WILL MOVE OVER WESTERN WASHINGTON ON SUNDAY WITH SHOWERS AND COOL WEATHER.
A TROUGH NEAR THE SOUTHEAST FLORIDA COAST WILL GRADUALLY SHIFT EASTWARD OVERNIGHT.
WARM TEMPERATURES WITH HIGHS IN THE LOWER 80S AND MOSTLY SUNNY SKIES ARE EXPECTED TODAY. QUIET AND VERY PLEASANT WEEKEND AHEAD AS HIGH PRESSURE NOW OVER THE PLAINS CONTINUES TO APPROACH. THIS BEHIND ACTIVE LOW PRESSURE THAT WILL BE EXITING THE EASTERN SEABOARD LATER TODAY.
633 PM EDT SAT APR 23 2016 HIGH PRESSURE AND DRY CONDITIONS HOLD OVER THE AREA THROUGH SUNDAY.
UNTIL THE UPPER LEVEL LOW PUSHES CLOSER TO THE REGION. WINDS WILL BE MOSTLY OUT OF THE WEST BY EARLY TOMORROW AFTERNOON ACROSS THE CAPROCK AND WILL INCREASE TO THE 25 MPH RANGE AS THE MAIN ENERGY FROM THE UPPER LOW PASSES TO OUR NORTH.
WITH LEE-SIDE LOW PRESSURE TAKING SHAPE ACROSS THE ROCKIES. A SHORT WAVE TROUGH IS MOVING ACROSS THE EASTERN SEABOARD. WITH RIDGING BUILDING IN ACROSS THE MISSISSIPPI VALLEY. WITH THE UPPER LEVEL RIDGE TO BUILD IN ACROSS THE OHIO AND TENNESSEE VALLEYS THROUGH SUNDAY. THE RIDGE WILL BEGIN TO BUCKLE. AS A SHORT WAVE TROUGH MOVES ACROSS THE PLAINS. LOWS WILL BE IN THE LOW TO MID 40S. READINGS WILL RANGE FROM THE MID TO UPPER 40S IN THE COOLER EASTERN VALLEYS. TO THE MID TO UPPER 50S ON THE RIDGES.
UPPER LOW CONTINUING TO SLIDE EAST INTO SW WYOMING THIS EVENING PER SATELLITE IMAGERY.
High pressure centered to our north today will bring pleasant weather conditions to most of the area. As a result, with the cloud cover expected to hold on into at least the early afternoon hours, temperatures will be tapered back a bit from guidance with the cooler afternoon highs (mid to upper 60s) over the east and especially far southeast counties. while out west, with full sunshine, we look for afternoon highs in the low to possibly mid 70s. 500mb ridge building into the Midwest for the first part of the weekend will keep the mild weather in place through tonight and into tomorrow for Central Illinois.
939 PM EDT SAT APR 23 2016 HIGH PRESSURE AND DRY CONDITIONS HOLD OVER THE AREA THROUGH SUNDAY.
TEMPERATURES ARE CURRENTLY IN THE MID/UPPER 60S IN NW AL, AND LAGGING BEHIND A FEW DEGREES IN THE LOWER 60S IN NE AL. H5 RIDGING ALOFT WILL CONTINUE BUILDING INTO THE REGION FROM THE WEST THROUGH THE DAY, WITH THE RECENTLY DEPARTED COLD FRONT THAT TRAVERSED THE AREA YESTERDAY WELL TO OUR SOUTHEAST. HIGH PRESSURE OFF THE EAST COAST WILL PROVIDE CLEAR SKIES AND NORTHERLY WINDS THROUGH THIS EVENING.
1206 PM CDT SAT APR 23 2016 An upper level ridge is currently building over the region early this morning and will be centered over the area by tonight. As an upper level trough tracks east into the northern Plains on Sunday the ridge will start to spread off Sunday night. Warm and dry conditions will occur through much of this weekend as highs warm into the upper 70s to the lower 80s both afternoons. As the upper level low tracks east storms are expected to develop to the west and northwest of the area along a cold front Sunday evening.
934 PM EDT SAT APR 23 2016 HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT THROUGH SUNDAY.
FREEZING LEVEL AT 13. MID/UPPER LEVEL RIDGING OVER THE EASTERN U. THIS RIDGE WILL SHIFT TO THE EAST SUNDAY NIGHT.
MID/UPPER LEVEL RIDGING OVER THE EASTERN U. THIS RIDGE WILL SHIFT TO THE EAST SUNDAY NIGHT.
A SURFACE WARM FRONT WAS LOCATED ALONG INTERSTATE 94. 18Z MODELS ARE IN GENERAL AGREEMENT THAT THE WARM FRONT WILL LAY UP JUST NORTH OF INTERSTATE 94 TONIGHT AND REMAIN THERE THROUGH SUNDAY NIGHT. KEPT THE HIGHEST RAIN CHANCES LOCATED IN THIS AREA. WITH THE COLD FRONT MOVING INTO THE AREA AND LITTLE INCREASED THE THUNDERSTORM CHANCES ACROSS THE ENTIRE AREA.
Temperatures will be considerably cooler than what what was experienced over the past several days.
120 PM EDT SAT APR 23 2016 HIGH PRESSURE OVER THE NORTHERN GREAT LAKES WILL SLIDE SOUTHEAST ACROSS THE LOCAL AREA TODAY AND TONIGHT. THE HIGH WILL MOVE OFF THE MID ATLANTIC COAST SUNDAY.
CANADIAN HIGH PRESSURE OVER LAKE SUPERIOR AND NE WI WILL SHIFT EAST TODAY. WITH HIGH TEMPERATURES EXPECTED TO RANGE FROM THE UPPER 40S IN THE FAR NORTH TO THE LOWER 70S IN PARTS OF CENTRAL WI.
BROAD HIGH PRESSURE WILL COVER THE AREA TODAY. HIGH PRESSURE WILL BE OVER THE AREA TODAY WITH LIGHT EAST WINDS. LOW TEMPS WILL RANGE FROM THE MID TO UPPER 60S TO THE LOWER 70S.
The winds should also keep temps noticeably warmer than last night. Another beautiful spring day is on tap Sunday, although it is expected to be noticeably warmer and breezier than today. These conditions will be provided by strengthening return flow on the back side of upper level/surface ridging.
215 PM EDT SAT APR 23 2016 HIGH PRESSURE BUILDS IN FOR TONIGHT.
642 PM CDT SAT APR 23 2016 HIGH PRESSURE REMAINS IN CONTROL AND WILL REMAIN SO THROUGH THE PERIOD. TONIGHT THROUGH SUNDAY HIGH PRESSURE CONTINUES TO BUILD ACROSS THE REGION. WITH HIGH PRESSURE SHIFTING EAST OF THE STATE.
/ISSUED 355 PM CDT SAT APR 23 2016/ LATEST WV IMAGERY AND UA ANALYSIS SHOW RIDGING ALOFT CROSSING TEXAS. WITH HIGH PRES RIDGE SLIDING SLOWLY EAST TONIGHT.
HIGH PRESSURE BUILDING NORTH OF FLORIDA WILL ADVECT MODIFIED DRY AIR ONSHORE FROM THE NORTHEAST. HIGH PRESSURE BUILDING SWD OVER THE ERN CONUS WILL CAUSE WINDS TO VEER TO LIGHT NRLY OVERNIGHT AND THEN INCREASE (10- 15KT) OUT OF THE NE ON SUNDAY.
Gusty southerly winds will develop tomorrow as the pressure gradient increases with the approach of a fairly fast moving upper level trough.
THIS AFTERNOON COULD BRING A FEW THUNDERSTORMS OVER THE RIO GRANDE PLAINS AS INFLUENCE FROM TROUGH GETS CLOSER TO THE REGION. CHANCES FOR CONVECTION WILL INCREASE FROM WEST TO EAST OVERNIGHT INTO SUNDAY AS UPPER TROUGH DIGS THROUGH THE REGION. SUNDAY WILL BE A FEW DEGREES COOLER ACROSS MOST LOCATIONS WITH EXPECTED CLOUD COVER AND RAIN.
CLOUDS WILL CONTINUE TO DECREASE EARLY IN THE EVENING AND SHOULD SEE MOSTLY CLEAR SKIES OVERNIGHT AS HIGH PRESSURE STRENGTHEN OVER THE REGION.
TONIGHT THROUGH SUNDAY HIGH PRESSURE CONTINUES TO BUILD ACROSS THE REGION. WITH HIGH PRESSURE SHIFTING EAST OF THE STATE.
BEFORE WE START MIXING THINGS UP AGAIN IN ADVANCE OF AN APPROACHING COLD FRONT THAT IS EXPECTED TO SWEEP THROUGH THE FORECAST AREA LATE THIS AFTERNOON AND EVENING. THE HIGHER TERRAIN AND NORTHERN ZONES WILL BE FAVORED ALTHOUGH A LINE OF SHOWERS AND THUNDERSTORMS IS EXPECTED ALONG THE FRONT LATER THIS AFTERNOON. CONVECTION DIMINISHES BY MID EVENING WITH FLOW ALOFT BECOMING MORE WEST AND NORTHWEST AS SHRTWV RIDGING BUILDS IN ON SUNDAY. SUNDAY TEMPS WILL BE RUNNING 3 TO 6 DEGREES COOLER ON THE BACKSIDE OF THIS EXITING SYSTEM.
244 PM MDT SAT APR 23 2016 THE COLD FRONT AND STRONG WINDS WILL BLOW THROUGH THE AREA TONIGHT. AT MID AFTERNOON THE COLD FRONT HAD MOVED INTO CENTRAL COLORADO WITH ABOUT 10 DEGREES OF COOLING AFTER FROPA.
311 PM EDT SAT APR 23 2016 HIGH PRESSURE WILL MOVE EAST ACROSS THE CENTRAL GREAT LAKES TONIGHT AND TO THE MID ATLANTIC COAST BY SUNDAY EVENING.
747 PM EDT SAT APR 23 2016 AVIATION A SLOW MOVING LOW PRESSURE SYSTEM OVER SOUTH DAKOTA WILL TRACK EAST OVER THE NEXT COUPLE OF DAYS.
316 PM EDT SAT APR 23 2016 A RIDGE OF HIGH PRESSURE WILL MOVE ACROSS THE AREA TONIGHT AND TO OUR EAST ON SUNDAY RESULTING IN DRY CONDITIONS WITH MOSTLY CLEAR SKIES. SOUTHERLY WINDS BEHIND THE DEPARTING RIDGE WILL RESULT IN WARMER CONDITIONS SUNDAY WITH HIGHS IN THE 70S. UPR LEVEL RIDGE OVER THE PLAINS THIS AFTN WILL MOVE EAST INTO THE WRN GRTLKS/OH VALLEY SUNDAY. THIS IS WARMER THAN LATEST MOS/MODEL BLENDS BUT CONSISTENT WITH GOING FCST AND SEEMS REASONABLE, SO MAINTAINED.
TEMPERATURES ARE ALREADY IN THE 70S FOR A LOT OF THE AREA AND WILL CONTINUE TO WARM UP THROUGH THE DAY UNDER SUNNY SKIES REACHING THE LOW TO MID 80S FOR MOST OF THE AREA. HIGH PRESSURE MOVES INTO THE AREA IN THE WAKE OF A COLD FRONT THAT IS NOW LOCATED EAST OF FLORIDA.
FORECAST MODEL SOUNDINGS AND COMPUTER SIMULATIONS INDICATE THAT SOUTHWESTERN TO ZONAL UPPER FLOW IS EXPECTED TO PREVAIL INTO TONIGHT AS CLOSED UPPER LOW TRAVERSES INTO WYOMING. LEAVING THE FORECAST AREA WITH WEAK UPR RIDGING. BY 06Z WED THE ECMWF SHOWS A CLOSED LOW OVR THE EXTREME SWRN CORNER OF KS.
355 PM CDT SAT APR 23 2016 LATEST WV IMAGERY AND UA ANALYSIS SHOW RIDGING ALOFT CROSSING TEXAS. WITH HIGH PRES RIDGE SLIDING SLOWLY EAST TONIGHT.
657 PM EDT SAT APR 23 2016 HIGH PRESSURE WILL BUILD ACROSS THE REGION TONIGHT THROUGH SUNDAY.
925 PM EDT SAT APR 23 2016 A WEAK BACK-DOOR COLD FRONT WILL SETTLE SOUTH THROUGH NC TONIGHT. RIDGING AT THE SURFACE AND ALOFT WILL OTHERWISE EXTEND ACROSS THE CAROLINAS THROUGH SUNDAY NIGHT. SCATTERED SHOWERS AND EVEN A COUPLE SEVERE (OR NEAR SEVERE STORMS) AIDED BY THE UPPER TROUGH AND ASSOCIATED COLD POOL ALOFT HAVE WEAKENED SIGNIFICANTLY SINCE SUNSET AND PUSHED SOUTH AND EAST AWAY FROM THE CWA. A COLD FRONT SLIPPING SOUTH THROUGH CENTRAL VA WILL USHER IN DRIER AIR LATER TONIGHT. SKIES CLEAR AND LOWS DIP INTO THE LOW/MID 50S PER STRONG MODEL CONSENSUS. -22 MOSTLY CLEAR SKIES ON SUNDAY WITH HIGHS IN THE MID 70S AS HIGH PRESSURE TAKES OVER THE WEATHER PATTERN. LOWS SUNDAY NIGHT IN THE LOW TO MID 50S.
Vapor imagery and upper air data showed a trough exiting to the east of our forecast area, with sinking, drying air aloft behind it. After a mostly sunny afternoon with temperatures in the lower to mid 80s, there will be enough drying and calm wind for lows to reach the mid to upper 50s overnight.
AN UPPER LEVEL LOW WAS OVER THE IDAHO/UTAH/WYOMING BORDER AREA. TEMPERATURES RANGED FROM THE LOWER 60S ACROSS THE SOUTHERN FORECAST AREA. THE LOW IN THE HIGH PLAINS WILL GRADUALLY MOVE EAST THROUGH SOUTH DAKOTA TONIGHT AND SUNDAY.
400 PM EDT SAT APR 23 2016 COOL HIGH PRESSURE BUILDS OVER THE AREA TONIGHT. AN AREA OF LOW PRESSURE WILL PASS TO THE SOUTH OF THE REGION FOR THE BEGINNING OF THE WORK WEEK. AS CLEAR SKIES COMBINE WITH THE COLD CANADIAN HIGH PRESSURE BUILDING OVER NORTHERN NEW ENGLAND. MOST AREAS WILL DROP BELOW FREEZING TONIGHT. NEAR TERM: VFR CONDITIONS EXPECTED WITH CANADIAN HIGH PRESSURE IN CONTROL TOMORROW. NEAR TERM:HIGH PRESSURE WILL BUILD OVER THE WATERS TONIGHT. THE COLD FRONT THAT CROSSED OVERNIGHT AND THIS MORNING DID NOT BRING A WETTING RAIN TO MANY LOCATIONS IN THE FORECAST AREA.
722 PM EDT SAT APR 23 2016 HIGH PRESSURE WILL MOVE EAST ACROSS THE CENTRAL GREAT LAKES TONIGHT AND TO THE MID ATLANTIC COAST BY SUNDAY EVENING.
THE ONLY CHANGE WILL BE THAT THE CENTER OF THE HIGH AND THE AXIS OF THE RIDGE WILL SHIFT EAST OF THE AREA AND BRING SOUTHERLY WINDS/FLOW WHICH WILL INCREASE THE THE DEW POINTS/MOISTURE IN THE AIR/ ESPECIALLY SUNDAY EVENING/NIGHT.
/ISSUED 1048 AM CDT SAT APR 23 2016/ BEAUTIFUL SATURDAY ACROSS THE FOUR STATE REGION WITH SFC RIDGING WELL IN CONTROL OF OUR WEATHER. WINDS ARE LIGHT UNDER THE RIDGE WE SHOULD BEGIN TO SEE A SLIGHT SOUTHEAST COMPONENT TO THE WIND BEGIN ACROSS OUR WESTERN ZONES.
THE LOW LEVEL JET IS ALSO BRINGING A PLUME OF VERY MILD AIR TO THE PLAINS. THE NAM/GFS ATTEMPT TO DEVELOP ELEVATED CONVECTION SUNDAY AM ALONG THE NOSE OF THIS LOW LEVEL JET IN THE VICINITY OF THE WARM FRONT ONCE THE 500MB RIDGE BREAKS DOWN AND LIFTS NORTHWARDS. THE LOW LEVEL JET BEGINS TO WEAKEN AT THIS POINT WITH THE FOCUS SHIFTING INTO SOUTHERN MINNESOTA. WITH COOLER TEMPERATURES ALOFT. CAPE VALUES WILL BE HIGHEST ALONG THE WARM FRONT WHERE DEWPOINTS POOL.
248 PM EDT SAT APR 23 2016 HIGH PRESSURE WILL BUILD INTO PENNSYLVANIA TONIGHT. BRINGING COOLER AND DRIER AIR TO THE REGION. THE WEEKEND WILL FINISH SUNNY AND PLEASANT AS THE HIGH TRAVERSES THE COMMONWEALTH THROUGHOUT SUNDAY.
A DRY AIRMASS AND HIGH PRESSURE IS IN PLACE TODAY. /ISSUED 325 AM CDT SAT APR 23 2016/ WEAK HIGH PRESSURE AND SUBTLE COOL AIR ADVECTION TO RULE THE NEXT COUPLE OF DAYS WITH NEAR NORMAL TEMPERATURES.
GKS Dry and warmer weather to persist on Sunday, but will see an increase in high clouds as next weather system approaches region.
A WEAK DISTURBANCE WILL MOVE THROUGH EASTERN PARTS OF THE FORECAST AREA THIS AFTERNOON AND EVENING BEFORE HIGH PRESSURE MOVES IN FOR THE REST OF THE WEEKEND. AS THE UPPER TROUGH MOVES OUT TO SEA. THUS HELPING TEMPERATURES RISE INTO THE LOW 70S ACROSS THE NORTH AND THE UPPER 70S ACROSS THE SOUTH. MOSTLY CLEAR SKIES ON SUNDAY WITH HIGHS IN THE MID 70S AS HIGH PRESSURE TAKES OVER THE WEATHER PATTERN. LOWS SUNDAY NIGHT IN THE LOW TO MID 50S.
/ISSUED 1053 AM CDT SAT APR 23 2016/ SURFACE ANALYSIS AT 15Z HAS HIGH PRESSURE RIDGE OVER THE AREA AND THAT SHOULD BE MOVING EAST TODAY AND TONIGHT. TEMPERATURES HAVE INCREASED IN THE MID 70S WHICH IS A TOUCH WARMER THAN THE FORECAST. UPPER LEVEL LOW OVER THE BIG BEND OF TEXAS SHOULD MOVE EAST TONIGHT AND TOMORROW SETTING UP FOR SOME RAIN CHANCES.