Aikyam-Lab/Synoptic-Bench huggingface dataset:
/ISSUED 458 AM CST MON FEB 1 2016/ STRONG UPPER LOW ROTATING THROUGH THE SOUTHERN ROCKIES WILL EJECT INTO THE PLAINS STATES TO OUR NORTH THIS EVENING. AS SUCH WE ARE UPGRADING THE HIGH WIND WATCH TO A WARNING WHICH WILL RUN FROM NOON TILL 6 PM. THE HIGH WINDS ARE EXPECTED TO ENTER THE WESTERN SOUTH PLAINS AROUND NOON AND THEN SPREAD RAPIDLY EASTWARD. THE HIGH WINDS SHOULD APPROACH A LUBBOCK TO PLAINVIEW LINE BETWEEN 1 AND 2 PM AND CONTINUING EAST. COOLER AND BREEZY CONDITIONS BEHIND THE DEPARTING WIND STORM ON TUESDAY LOOK ON TRACK.
928 AM EST MON FEB 1 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW A STRONG LOW PRESSURE SYSTEM IS EXPECTED TO MOVE THROUGH THE AREA ON TUESDAY AND TUESDAY NIGHT. HIGH PRESSURE IS EXPECTED TO BUILD INTO THE AREA FOR MOST OF THE REST OF THE WEEK.
TEMPERATURES ARE IN THE LOWER 70S. IN THE LOW LEVELS OF THE ATMOSPHERE. AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS NORTH FLORIDA THIS AFTERNOON. A RIDGE OF HIGH PRESSURE WILL BE CENTERED OVER CUBA TODAY. A TROUGH OF LOW PRESSURE WILL PROGRESS EASTWARD THROUGH THE EASTERN PORTION OF THE FLORIDA STRAITS THIS AFTERNOON. RAIN WILL END FROM WEST TO EAST IN THE FLORIDA KEYS TODAY AS THE AFOREMENTIONED UPPER LEVEL TROUGH OF LOW PRESSURE PASSES EAST OF THE ISLAND CHAIN.
750 PM 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. ANY CHC FOR A SHOWER OR THUNDERSTORM WILL BE ACROSS THE NW MOUNTAINS AND LIMITED TO LATE IN THE AFTERNOON AND EVENING AS A COLD FRONT SAGS SE FROM THE GLAKES.
THEN A MORE ACTIVE THUNDERSTORM DAY IS EXPECTED MONDAY MAINLY OVER THE HIGHER TERRAIN FROM THE SIERRA NEVADA TO NORTHWEST ARIZONA. STRONG LOW PRESSURE WILL BRING SHOWERY AND MUCH COOLER CONDITIONS TO THE REGION LATE IN THE WEEK. WITH THE BEST CHANCES OVER THE HIGHER TERRAIN FROM THE SIERRA TO NORTHWEST ARIZONA. STILL EXPECTING MONDAY TO BE THE MOST ACTIVE DAY AS LOW PRESSURE OFF THE SOUTHERN CALIFORNIA COAST SWINGS INLAND. WITH LESSER CHANCES OVER THE HIGHER TERRAIN OF SOUTHERN NEVADA AND THE SMALLEST CHANCES OVER THE DESERTS OF SAN BERNARDINO COUNTY.
710 PM EDT SUN MAY 3 2015 HIGH PRESSURE BECOMES ANCHORED OFF THE MID ATLANTIC COAST THROUGH MID WEEK.
NORTHERLY WINDS BEHIND COLD FRONT AND LOW LEVEL MOISTURE MAY RESULT IN A PERIOD OF LOWER CIGS LATE TNGT OR MON MRNG.
714 PM EDT SUN MAY 3 2015 HIGH PRESSURE WILL REMAIN JUST OFF THE MID ATLANTIC COAST THROUGH MONDAY.
ALLOWING TEMPS TO FALL EFFICIENTLY IN TO THE LOW TO MID 30S. TONIGHT HIGH PRESSURE WILL BUILD INTO THE FA FOR DIMINISHING WINDS. WITH COOLER COLUMN ACROSS THE FA SHOULD SEE MORE CONSISTENT MINIMUMS ACROSS THE FA AROUND 40 OR SO. HIGH PRESSURE REMAINS OVER THE FA MONDAY FOR SUNSHINE.
1204 AM EDT MON MAY 4 2015 AVIATION A COLD FRONT WILL BRING SOME SHOWERS AND THUNDERSTORMS TONIGHT. GOOD MOISTURE TRANSPORT AND A 35 TO 40 KT LLJ ARRIVES AHEAD OF APPROACHING COLD FRONT.
OVERALL FORECAST STILL ON TRACK WITH HIGH PRESSURE AND MOSTLY CLEAR SKIES THROUGH THE NIGHT AND EARLY MORNING. CHATTANOOGA AIRPORT, TN 54 83 58 82 / 0 10 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 51 80 58 81 / 0 10 0 10 OAK RIDGE, TN 52 82 58 82 / 0 10 0 10 TRI CITIES AIRPORT, TN 47 80 53 81 / 0 10 10 20.
716 PM 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 TEMPERATURE GUIDANCE TONIGHT BECAUSE OF THE RECENT BIAS. THE GFS AND ECMWF HAVE SURFACE RIDGING LINGERING THROUGH THE MEDIUM-RANGE PERIOD WITH MOSTLY CLEAR SKIES AND TEMPERATURES NEAR TO A LITTLE ABOVE NORMAL.
1115 PM 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. WHILE 850 MB RIDGE AXIS PARALLELS THE MID ATLANTIC COASTLINE. ANY CHC FOR A SHOWER OR THUNDERSTORM WILL BE ACROSS THE NW MOUNTAINS AND LIMITED TO LATE IN THE AFTERNOON AND EVENING AS A COLD FRONT SAGS SE FROM THE GLAKES.
918 PM EDT SUN MAY 3 2015 HIGH PRESSURE WILL CONTINUE ACROSS THE SOUTHEAST STATES THIS EVENING.
/ISSUED 305 PM CDT Sun May 3 2015/ WV imagery shows the upper level ridge has moved to the east of West Texas and Southeast New Mexico over the past 24 hours, leaving the CWA under SW flow aloft. Monday, the upper trough makes landfall in SoCal, and height falls begin across the desert CONUS. Models, particularly the GFS, show a cap ahead of the trough Monday, but also strong lift in the lwr levels invof the cap. Monday night, as the trough moves into the 4 Corners area, a strong 50+kt LLJ is set to develop over the Permian Basin, w/storms becoming a bit more organized and heading E-NE.
A TROUGH OF LOW PRESSURE WILL PASS OVER THE AREA MIDWEEK MIXING OUT THE MARINE LAYER AND PROMOTING A SLIGHT CHANCE OF SHOWERS AROUND THE AREA. THE CURRENT SATELLITE WATER VAPOUR IMAGE IS SHOWING A LOW PRESSURE SYSTEM CENTERED AT 49 NORTH 142 WEST WITH A BROAD AREA OF LOW PRESSURE POSITIONED OFFSHORE OF SOUTHERN CALIFORNIA. THIS LOW WILL MIX OUT THE MARINE LAYER PROVIDING SOME RELIEF FROM THE LOW CLOUDS AND FOG TO THE AREA.
900 PM EDT SUN MAY 3 2015 ANOTHER QUIET NIGHT IN STORE AS A LARGE HI PRES RIDGE EXTENDING FROM THE CANADIAN MARITIMES TO THE WRN GOMEX DRIFTS INTO THE W ATLC. POSITION OF THE RIDGE HAS ALLOWED THE SFC/LOW LVL PGRAD TO TIGHTEN OVER THE PAST 24HRS. DRY/STABLE AIRMASS ASSOCD WITH THE RIDGE REMAINS IN SITU WITH KJAX/KTBW/KMFL SOUNDINGS MEASURING PWAT VALUES ARND 0. LCL PGRAD WILL TIGHTEN OVERNIGHT AS A LARGE HI PRES RIDGE BLANKETING THE ERN SEABOARD PUSHES OFFSHORE.
FREEZING LEVEL MEASURED AT 13595 FEET. THE REGION WILL REMAIN UNDER THE INFLUENCE OF A FAIRLY BROAD AND WEAK UPPER LEVEL HIGH.
620 PM CDT SUN MAY 3 2015 FOR 00Z TAFS /ISSUED 307 PM CDT SUN MAY 3 2015/ CONFIDENCE IS FAIRLY HIGH THAT A TROUGH-WEST / RIDGE-EAST PATTERN WILL DEVELOP ACROSS THE CONUS DURING THE FORECAST PERIOD. WEAK RIDGING CURRENTLY OVER THE SOUTHERN PLAINS WILL MOVE EASTWARD AND EXPAND. DAYTIME HIGHS AND NIGHTTIME LOWS EACH DAY WILL BE FAIRLY SIMILAR OVER THE NEXT FEW DAYS AS A BROAD RIDGE HOLDS SWAY OVER THE SE CONUS. THE DEEP RIDGE WILL ACTUALLY TEND TO RETROGRADE AND BY WED WILL LIKELY BE LOCATED OVER THE OH VALLEY.
STRENGTHENING PRESSURE GRADIENT SOUTH OF A HIGH PRESSURE RIDGE OVER THE CAROLINAS WILL BRING AN INCREASE IN ONSHORE WINDS LATE TONIGHT INTO MONDAY. A WEAK COASTAL TROUGH WILL BRING A FEW LATE NIGHT AND EARLY MORNING ISOLATED SHOWERS TO THE NE FL COAST AND COASTAL WATERS. EASTERLY WINDS WILL CONTINUE TO GRADUALLY INCREASE TONIGHT INTO MONDAY AS THE PRESSURE GRADIENT STRENGTHENS ON THE SOUTH SIDE OF A HIGH PRESSURE RIDGE AXIS OVER THE CAROLINAS.
650 PM CDT SUN MAY 3 2015 A COLD FRONT WAS MOVING THROUGH THE FORECAST AREA AT 19Z. AS THE COLD FRONT PROGRESSES THROUGH NW WI THIS EVENING. EXPECT THE CLOUDS OVER THE AREA THIS AFTERNOON TO CLEAR OVERNIGHT AS HIGH PRESSURE BUILDS IN. DRY HIGH PRESSURE SETTLES OVER THE REGION ON MONDAY.
1037 PM EDT SUN MAY 3 2015 HIGH PRESSURE WILL REMAIN JUST OFF THE MID ATLANTIC COAST THROUGH MONDAY.
743 PM EDT SUN MAY 3 2015 HIGH PRESSURE MOVES AWAY. VERY DRY AIR IN THE LOW LEVELS WILL ALLOW FOR A RAPID FALL IN TEMPS THIS EVENING OUTSIDE OF URBAN CENTERS. LATEST SURFACE MAP SHOWS AND AREA OF HIGH PRESSURE OVER THE SOUTHEASTERN STATES. THE HIGH SHOULD DRIFT SOUTHEAST ON MONDAY. GENERAL MODEL CONSENSUS HAS UPPER RIDGING BUILDING OVER THE OHIO VALLEY THIS PERIOD.
WITH HIGH PRESSURE IN CONTROL AND THE FORECAST ON TRACK.
844 PM EDT SUN MAY 3 2015 A RIDGE OF HIGH PRESSURE BUILDING INTO THE NORTHEAST WILL BRING FAIR SKIES, WARM AIR, AND PLEASANT SPRING WEATHER TO NEW YORK AND PENNSYLVANIA THROUGH THE DAY MONDAY.
HIGH PRESSURE OFF THE SOUTHEAST COAST WAS PROMOTING A LIGHT SOUTHEASTERLY FLOW ACROSS THE FORECAST AREA THIS EVENING.
HOWEVER MANY OF THE GUIDANCE MEMBERS HAVE BEEN CONSISTENT IN THE DEVELOPMENT OF LOW PRESSURE OFF THE FLORIDA EAST COAST. THE STRENGTH AND ORGANIZATION OF THIS LOW ARE NOT WELL REPRESENTED BETWEEN THE GUIDANCE MEMBERS. THIS RIDGE IS EXPECTED TO HOLD IN PLACE THROUGH MONDAY NIGHT.
739 PM EDT SUN MAY 3 2015 A RIDGE OF HIGH PRESSURE BUILDING INTO THE NORTHEAST WILL BRING FAIR SKIES, WARM AIR, AND PLEASANT SPRING WEATHER TO NEW YORK AND PENNSYLVANIA THROUGH THE DAY MONDAY.
/ISSUED 316 PM CDT SUN MAY 3 2015/ SOUTHERLY WINDS INCREASED IN SPEED THIS AFTERNOON IN RESPONSE TO A DEEPENING LEE SIDE TROUGH. UPPER LEVEL RIDGING THAT HAS DOMINATED THE WEATHER FOR THE LAST SEVERAL DAYS WILL START TO WEAKEN AS AN UPPER LEVEL LOW CURRENTLY A FEW HUNDRED MILES WEST OF SAN DIEGO CALIFORNIA MOVES INTO THE SOUTHWESTERN UNITED STATES. THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS WEST TEXAS MONDAY AFTERNOON AS A SHORT WAVE ADVANCES AHEAD OF THE MAIN UPPER LEVEL LOW. AS NORTH AND CENTRAL TEXAS COMES MORE UNDER THE INFLUENCE OF AN UPPER LEVEL TROUGH.
REGION REMAINS ALONG WESTERN PERIPHERY OF HIGH PRESSURE AT THE SURFACE AND ALOFT. WITH MEAN TROFS OVER THE WRN CONUS AND BAHAMAS/WRN ATLANTIC. AND A NARROW RIDGE EXTENDING FROM CENTRAL MEXICO NE TWD THE MID ATLANTIC. IN THE LOW TO MID LEVELS. RIDGING WILL REMAIN CENTERED GENERALLY OFF TO THE EAST. WITH QUASI-PERSISTENT TROFINESS OVER THE ROCKY MOUNTAINS. THE ONE EXCEPTION IN THE SHORT TERM WILL BE A WEAK EASTERLY WAVE/INVERTED TROF. BECOMING A LITTLE MORE RESTRICTED THU AND FRI AS THE RIDGE OVERHEAD BUILDS A BIT. THE RIDGE BEGINS TO BREAK DOWN/FLATTEN OUT ON SAT AS AN UPPER LOW LIFTS OUT FROM THE WRN CONUS INTO THE CENTRAL PLAINS. 13 HIGH PRESSURE TO OUR EAST WILL MAINTAIN AN ONSHORE FLOW ON THE COASTAL WATERS THROUGH THE NEW WEEK.
842 PM EDT SUN MAY 3 2015 AVIATION A COLD FRONT WILL BRING SOME SHOWERS AND THUNDERSTORMS TONIGHT. GOOD MOISTURE TRANSPORT AND A 35 TO 40 KT LLJ ARRIVES AHEAD OF APPROACHING COLD FRONT.
THERE MIGHT BE A TEMPTATION TO LOWER OVERNIGHT LOWS IN A FEW SPOTS SUCH AS RUSTON WITH A MID FIFTY DEW POINT WHILE JUST DOWN THE ROAD IN MONROE IS IN THE LOW 60S AND BOTH ARE ZONE GROUPED FOR AROUND 60 FOR A LOW WITH MID TO UPPER 60S LAST HOUR.
CURRENT SURFACE ANALYSIS SHOWS HIGH PRESSURE BUILDING INTO THE NORTHERN PLAINS AS COLD FRONT PUSHES THROUGH THE CENTRAL PLAINS INTO THE UPPER MIDWEST. UPPER LEVEL ANALYSIS PLACES BROAD WESTERLY FLOW OVER OUR AREA WITH RIDGING TOWARDS THE NORTHERN PACIFIC COAST WHILE UPPER LOW SITS OFF THE CALIFORNIA COAST. WEAK RIDGING DEVELOPS AHEAD OF SOUTHERN UPPER LOW THAT WILL PUSH OVER SOUTHERN CALIFORNIA INTO THE GREAT BASIN. THE LATEST 12 UTC MODEL GUIDANCE CONTINUES TO DEVELOP A DEEP WEST COAST TROUGH THROUGH THE WEEK.
ALSO SLIGHTLY WARMER MONDAY DUE TO THE MORE SOUTHERLY WIND COMPONENT ALOFT.
939 PM EDT SUN MAY 3 2015 HIGH PRESSURE OFF THE SOUTHEAST COAST WILL REMAIN NEARLY STATIONARY. A COLD FRONT OVER THE UPPER MIDWEST WILL MOVE SOUTHEAST AND ARRIVE IN THE AREA MONDAY NIGHT AND BECOME NEARLY STATIONARY.
929 PM EDT SUN MAY 3 2015 HIGH PRESSURE JUST SOUTH OF CAPE HATTERAS WILL SHIFT EAST TO BERMUDA THROUGH MONDAY.
1000 PM 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. WHILE 850 MB RIDGE AXIS PARALLELS THE MID ATLANTIC COASTLINE. ANY CHC FOR A SHOWER OR THUNDERSTORM WILL BE ACROSS THE NW MOUNTAINS AND LIMITED TO LATE IN THE AFTERNOON AND EVENING AS A COLD FRONT SAGS SE FROM THE GLAKES.
1031 PM EDT SUN MAY 3 2015 CURRENTLY - HIGH PRESSURE CENTERED OFF THE CAROLINA COAST. AND A LOW PRESSURE UNDULATION IN THE WESTERN CARIBBEAN IS DELIVERING FRESH EASTERLIES ACROSS THE KEYS AND SURROUNDING WATERS. SHORT TERM UPDATE (OVERNIGHT) - FRESH EASTERLY BREEZES WILL CONTINUE THROUGH TONIGHT DUE TO HIGH PRESSURE TO OUR NORTH AND THE LOWER PRESSURE IN THE CARIBBEAN. THE STABLE LAYERS ALOFT ARE EXPECTED TO ERODE DUE TO PERSISTENT TROUGHING ALOFT. FRESH TO STRONG WINDS WILL CONTINUE ACROSS ALL KEYS WATERS OVERNIGHT DUE TO HIGH PRESSURE OFF THE MID ATLANTIC COAST.
AS THE LOWER CLOUDS HAVE YET TO SHOW THEIR HAND. /ISSUED 316 PM CDT SUN MAY 3 2015/ SOUTHERLY WINDS INCREASED IN SPEED THIS AFTERNOON IN RESPONSE TO A DEEPENING LEE SIDE TROUGH. UPPER LEVEL RIDGING THAT HAS DOMINATED THE WEATHER FOR THE LAST SEVERAL DAYS WILL START TO WEAKEN AS AN UPPER LEVEL LOW CURRENTLY A FEW HUNDRED MILES WEST OF SAN DIEGO CALIFORNIA MOVES INTO THE SOUTHWESTERN UNITED STATES. THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS WEST TEXAS MONDAY AFTERNOON AS A SHORT WAVE ADVANCES AHEAD OF THE MAIN UPPER LEVEL LOW. AS NORTH AND CENTRAL TEXAS COMES MORE UNDER THE INFLUENCE OF AN UPPER LEVEL TROUGH.
TEMPS WERE IN THE LOW TO MID 60S. AS HIGH PRESSURE CONTINUES TO DOMINATE THE WEATHER PATTERN.
1252 AM EDT MON MAY 4 2015 A RIDGE OF HIGH PRESSURE BUILDING INTO THE NORTHEAST WILL BRING FAIR SKIES, WARM AIR, AND PLEASANT SPRING WEATHER TO NEW YORK AND PENNSYLVANIA THROUGH THE DAY MONDAY.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW HIGH PRESSURE WILL REMAIN THE DOMINANT FEATURE OVER MUCH OF THE REGION THROUGH THE END OF THE WORK WEEK. THE ONLY EXCEPTION TO THIS IS AN UPPER LEVEL WAVE PASSING THROUGH THE LOWER OHIO VALLEY MAY SPREAD A FEW SHOWERS AND THUNDERSTORMS INTO FAR SOUTHERN PORTIONS OF CENTRAL INDIANA LATE TONIGHT.
AN UPPER LEVEL TROUGH AXIS IS MOVING ONTO THE PACIFIC NORTHWEST COAST THIS MORNING. SMALL SCALE DISTURBANCES PIVOTING OUT OF THIS LOW AND ACROSS NORCAL IN SOUTHWEST FLOW ALOFT BRINGING SOME ISOLATED SHOWERS AND THUNDERSTORMS TO THE SOUTHERN CASCADES AT THIS TIME. DELTA BREEZE THIS MORNING CONTINUES RELATIVELY STRONG AND THIS COMBINED WITH COOLER AIR ASSOCIATED WITH THE TROUGH BRINGING DOWN TEMPERATURES FROM A FEW TO SEVERAL DEGREES BELOW 24 HOURS AGO.
/ISSUED 339 PM EDT TUE JUL 21 2015/ HIGH PRESSURE WILL CONTINUE TO DOMINATE MUCH OF THE WEEK. LOW PRESSURE FROM THE NORTH WILL BRING BETTER RAIN CHANCES TO SOUTH FLORIDA. SYNOPTIC CHANGES OCCUR FOR THE END OF THE WEEK AS MODELS AGREE ON DEEP-LAYER RIDGE WEAKENING OVER FLORIDA AS A TROUGH DEVELOPS ALONG THE EAST COAST.
223 AM EDT WED JUL 22 2015 QUIET WEATHER WILL PREVAIL THROUGH THE REMAINDER OF THE WEEK AS HIGH PRESSURE BUILDS OVER THE REGION. THIS HIGH PRESSURE WILL BRING COOLER AND DRIER WEATHER TO THE AREA. BROAD CYCLONIC FLOW WILL PREVAIL TODAY OVER THE NORTHEAST BRINGING COOLER AND DRIER WEATHER TO CENTRAL NY AND NORTHEAST PA. WINDS WILL WEAKEN AFTER SUNSET AS THE HIGH PRESSURE STARTS TO CONTROL THE AREA. TEMPS ARE EXPECTED TO FALL INTO THE LOW TO MID 50S TONIGHT. BROAD UPPR LVL LOW WILL CONTINUE TO BE OVER THE NORTHEAST WITH HIGH PRESSURE AT THE SURFACE.
THE AREA WILL CONTINUE TO SIT ON THE EASTERN PERIPHERY OF THE UPPER RIDGE OVER THE NEXT SEVERAL DAYS. THE UPPER HIGH WILL GET PRESSED BACK TOWARD THE WEST FOR A FEW DAYS BUT WILL MANAGE TO MOVE BACK OVER THE RED RIVER AREA BY THE END OF THE FCAST. THIS WILL ALLOW THE EAST COAST TROUGH TO WORK A COLD FRONT OFFSHORE. THIS WOULD HELP KEEP OUR AREA IN THE REGION OF SHORT WAVE DISTURBANCES ROTATING AROUND THE UPPER HIGH. THE LOW LEVEL JET WILL WEAKEN.
A WESTERN ATLANTIC RIDGE EXTENDS INTO THE EASTERN HALF OF OUR MARINE DISTRICT.
154 AM EDT WED JUL 22 2015 DRY HIGH PRESSURE FOR WEDNESDAY INTO THE WEEKEND. THERE IS A SHOT AT A NEAR 50 DEGREE LOW TEMP IN THE E RANDOLPH CO AND THE HIGHEST ELEVATIONS IN THE N MOUNTAINS. HIGH PRESSURE WILL PROVIDE A TRANQUIL END TO THE WORK WEEK. HIGH PRESSURE AROUND TO START THE WEEKEND.
130 AM EDT WED JUL 22 2015 A COLD FRONT WILL DROP SOUTH OF THE AREA TONIGHT.
A DRIER SOUTHWESTERLY FLOW OVER THE REGION WILL BRING ONLY A FEW MOUNTAIN SHOWERS AND THUNDERSTORMS EACH DAY ACROSS THE HIGHER TERRAIN OF SOUTH-CENTRAL ARIZONA THIS WEEK. WITH HIGHS APPROACHING THE 110 DEGREE MARK FOR SOME LOCALES ON THE LOWER DESERTS BY THE WEEKEND. ONCE AGAIN INCREASING THE THREAT OF ISOLATED THUNDERSTORMS OVER THE LOWER DESERTS. THE MOISTURE WILL ALSO LEAD TO SLIGHT CHANCES OF SHOWERS/THUNDERSTORMS EACH DAY MAINLY OVER THE HIGHER TERRAIN EAST OF PHOENIX. AS THE LOW LEVEL FLOW/850-700MB GRADUALLY BECOMES MORE SOUTHERLY.
308 AM EDT WED JUL 22 2015 DRY WEATHER AND SEASONAL TEMPERATURES CAN BE EXPECTED INTO THE WEEKEND AS HIGH PRESSURE SLIDES OVER THE UPPER OHIO REGION. WITH HIGH PRESSURE MOVING INTO THE REGION TODAY.
143 AM EDT WED JUL 22 2015 HIGH PRESSURE WILL BUILD INTO THE REGION FOR THE REST OF THE WEEK. COOLER AND DRIER WEATHER WILL PREVAIL. IN THE WAKE OF AN EARLIER COLD FRONTAL PASSAGE. ASSOCIATED WITH A DEEPENING UPPER-LEVEL TROUGH. COLD FRONT WITH LINE OF SHOWERS AND SCATTERED THUNDERSTORMS WILL PASS SOUTH OF OUR FORECAST AREA BY EARLY THIS EVENING. COOLER AND DRIER NORTHWESTERLY FLOW WILL THEN BECOME ESTABLISHED OVERNIGHT UNDER A BUILDING RIDGE. EXTENDING INTO CNTRL NY/NEPA WILL KEEP CONDITIONS COOLER THAN A TYPICAL LATE JULY WITH INTERVALS OF CLOUDS AND SUNSHINE. VERY LITTLE CHANGE IN THE OVERALL PATTERN WITH A CLOSED LOW PARKED OVER EASTERN CANADA AND THE MARITIMES. A WEAK UPPER IMPULSE SEEMS TO ROTATE SOUTHWARD ALONG THE BASE OF THE LOW.
647 AM EDT WED JUL 22 2015 DRY WEATHER AND SEASONAL TEMPERATURES CAN BE EXPECTED INTO THE WEEKEND AS HIGH PRESSURE SLIDES OVER THE UPPER OHIO REGION. WITH HIGH PRESSURE MOVING INTO THE REGION TODAY.
IN KICT COUNTRY EAST WINDS UNDER 10 MPH CONTINUE TO ADVECT COOLER AIR INTO EASTERN & CENTRAL KS WHERE TEMPERATURES ARE 65-70 IN MOST AREAS. TODAY & TONIGHT: ONE CHARACTER THAT CONTINUES TO DRAW CONSIDERABLE ATTENTION IS THE WARM FRONT THAT HAS BEEN DISCUSSED THIS WEEK. UNDERGOING WARM FRONTOGENESIS. THU-FRI: WITH A RAPIDLY AMPLIFYING UPPER-DECK RIDGE PUSHING E ACROSS MOST OF THE COUNTRY THE FURNACE WILL BE TURNED UP. THE BEST CHANCES OF THUNDERSTORMS MAY OCCUR SAT NIGHT & SUN AS A WEAK COLD FRONT TRIES TO VENTURE SE TOWARD CENTRAL KS.
318 AM EDT WED JUL 22 2015 QUIET WEATHER WILL PREVAIL THROUGH THE REMAINDER OF THE WEEK AS HIGH PRESSURE BUILDS OVER THE REGION. THIS HIGH PRESSURE WILL BRING COOLER AND DRIER WEATHER TO THE AREA. BROAD CYCLONIC FLOW WILL PREVAIL TODAY OVER THE NORTHEAST BRINGING COOLER AND DRIER WEATHER TO CENTRAL NY AND NORTHEAST PA. WINDS WILL WEAKEN AFTER SUNSET AS THE HIGH PRESSURE STARTS TO CONTROL THE AREA. TEMPS ARE EXPECTED TO FALL INTO THE LOW TO MID 50S TONIGHT. BROAD UPPR LVL LOW WILL CONTINUE TO BE OVER THE NORTHEAST WITH HIGH PRESSURE AT THE SURFACE.
A BROAD AREA OF UPPER LEVEL RIDGING WAS SITUATED OVER THE SOUTHERN PLAINS DURING THE AFTERNOON HOURS TODAY WHILE REMNANT SHOWERS FROM OVERNIGHT CONVECTION DROPPED MORE RAIN DOWN IN BARBER COUNTY.
328 AM CDT WED JUL 22 2015 HIGH PRESSURE CENTERED OVER THE MIDWEST EARLY THIS MORNING WILL DOMINATE THE WEATHER OVER MOST OF THE FORECAST AREA THRU THE DAY. IN THE MEANTIME, HIGH PRESSURE BUILDING BACK INTO THE REGION FOR THE SHORT TERM BRINGING A DRIER FORECAST AND A LESS MUGGY AIRMASS. BROAD UPPER RIDGE OVER THE SOUTHERN THIRD OF THE CONUS STARTING TO AMPLIFY A BIT TOWARDS THE END OF THE WEEK. MIDWEST GETTING INTO THE RIDGE WITH LITTLE FLOW ALOFT AS A QUICK IMPULSE RIPPLES OVER THE RIDGE AND DIVES INTO THE MID MISS RIVER VALLEY WED NIGHT AND INTO THURSDAY. AS THE UPPER RIDGE BUILDS ACROSS THE MIDDLE OF THE CONUS WITH THE AXIS DRIFTING OVER THE MIDWEST, TEMPS WARM INTO THE WEEKEND.
331 AM CDT WED JUL 22 2015 MAIN FORECAST CONCERNS WILL CENTER AROUND COOLER THAN NORMAL HIGH TEMPERATURES TODAY AND SMALL POPS IN OUR SOUTHWEST THIS EVENING. HIGH PRESSURE WAS CENTERED OVER IOWA WITH WEAK RETURN FLOW NOTED OVER THE CWA. WEAK UPPER LEVEL RIDGING WILL BUILD OVER THE NATION'S MID SECTION INTO THE WEEKEND. HAVE BOOSTED HIGHS A BIT AS FAVORABLE MIXING OCCURS UNDER THIS RIDGE.
A WEAK UPPER LEVEL TROUGH WILL MOVE ACROSS THE REGION TODAY THROUGH TONIGHT. THIS TROUGH WILL BRING PARTLY SUNNY SKIES AND A SLIGHT CHANCE OF SHOWERS TO THE AREA. WEAK UPPER LEVEL RIDGING WILL BRING LESS CLOUDS AND WARMER TEMPERATURES TO THE AREA ON THURSDAY.
UPPER LEVEL RIDGING OVERHEAD IS PREVENTING SIGNIFICANT CHANGE TO THE FORECAST PATTERN FROM WHAT HAS BEEN SEEN DURING THE LAST FEW DAYS. THE SURFACE SUBTROPICAL RIDGE REMAINS JUST SOUTH OF THE FORECAST AREA. WITH HIGHS TOPPING OUT IN THE LOW TO MID 90S OVER THE INTERIOR.
WEST TO NORTHWEST WINDS 8-10 KNOTS THIS AFTERNOON WILL BECOME LIGHT SW OVERNIGHT TONIGHT AROUND NORTHERN FRINGE OF SAID HIGH PRESSURE AS IT EDGE EVER SO SLOWLY ESE THROUGH THE SOUTHERN LAKES/NORTHERN OHIO VALLEY. TODAY AND TONIGHT EXPANSIVE AREA OF HIGH PRESSURE WILL REMAIN CENTERED OVER THE SOUTHERN GREAT LAKES/MID MISSISSIPPI VALLEY/OHIO VALLEY.
UPPER-LEVEL RIDGE TO REBUILD ACROSS TEXAS ON THURSDAY. WILL BE IN THE FORM OF SHOWERS AND THUNDERSTORMS POSSIBLE ALONG THE EASTERN PERIPHERY OF THE RIDGE ACROSS SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA.
STILL MAY SEE SOME ADDITIONAL DEVELOPMENT WITH DAYTIME HEATING AS HIGH PRESSURE EXITS TO THE EAST AND ELONGATED LOW PRESSURE REMAINS JUST WEST OF THE STATE. UPPER LEVEL RIDGING THEN BUILDS OVER THE PLAINS STATES. THE RIDGE BEGINS TO BREAK DOWN THURSDAY NIGHT AND THE FRONTAL BOUNDARY FINALLY LOOKS TO TRACK ACROSS THE CWA.
432 AM EDT WED JUL 22 2015 HIGH PRESSURE BUILDS TODAY AND THURSDAY.
RICH SW FLOW ALONG WITH WEAK IMPULSES IN ZONAL FLOW/LOW AMPLITUDE TROUGHING WILL RESULT IN ANOTHER ROUND OF SCATTERED AFTN STORMS. WITH AFTN DEWPOINTS IN THE LOWER/MID 70S. WITH A MID LEVEL TROUGH BEGINNING TO DIG SOUTH ACROSS THE SE CONUS. WITH THE DIGGING TROUGH.
315 AM CDT WED JUL 22 2015 THE SHORT TERM WILL TRANSITION FROM WEAK HIGH PRESSURE AND DRIER CONDITIONS TO INCREASING MOISTURE AND SOUTHERLY FLOW. MUCH OF THE HIGH RESOLUTION CAMS WERE DOING A POOR JOB DEPICTING THE CURRENT SHOWERS/STORMS WITH THE OPERATIONAL MODELS DOING A BIT BETTER JOB. IT SHOULD BE EVEN WARMER THURSDAY WITH MOST AREAS SEEING HIGHS IN THE 80S.
654 AM EDT WED JUL 22 2015 QUIET WEATHER WILL PREVAIL THROUGH THE REMAINDER OF THE WEEK AS HIGH PRESSURE BUILDS OVER THE REGION. THIS HIGH PRESSURE WILL BRING COOLER AND DRIER WEATHER TO THE AREA. BROAD CYCLONIC FLOW ALOFT WILL PREVAIL TODAY OVER THE NORTHEAST BRINGING COOLER AND DRIER WEATHER TO CENTRAL NY AND NORTHEAST PA. WINDS WILL WEAKEN AFTER SUNSET AS HIGH PRESSURE STARTS TO CONTROL THE AREA. TEMPS ARE EXPECTED TO FALL INTO THE LOW TO MID 50S TONIGHT. BROAD UPPR LVL LOW WILL CONTINUE TO BE OVER THE NORTHEAST WITH HIGH PRESSURE AT THE SURFACE.
508 AM EDT WED JUL 22 2015 A COLD FRONT WILL MOVE EAST OF THE AREA TODAY.
331 AM EDT WED JUL 22 2015 HIGH PRESSURE BUILDS TODAY AND THURSDAY.
243 AM PDT WED JUL 22 2015 LOW PRESSURE WILL MOVE THROUGH THE EASTERN SIERRA AND WESTERN NEVADA WITH MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON.
313 AM MST WED JUL 22 2015 A DRIER SOUTHWESTERLY FLOW OVER THE REGION WILL BRING ONLY A FEW MOUNTAIN SHOWERS AND THUNDERSTORMS EACH DAY ACROSS THE HIGHER TERRAIN OF SOUTH-CENTRAL ARIZONA THIS WEEK. WITH HIGHS APPROACHING THE 110 DEGREE MARK FOR SOME LOCALES ON THE LOWER DESERTS BY THE WEEKEND. ONCE AGAIN INCREASING THE THREAT OF ISOLATED THUNDERSTORMS OVER THE LOWER DESERTS. THE MOISTURE WILL ALSO LEAD TO SLIGHT CHANCES OF SHOWERS/THUNDERSTORMS EACH DAY MAINLY OVER THE HIGHER TERRAIN EAST OF PHOENIX. AS THE LOW LEVEL FLOW/850-700MB GRADUALLY BECOMES MORE SOUTHERLY.
TODAY AND TONIGHT EXPANSIVE AREA OF HIGH PRESSURE WILL REMAIN CENTERED OVER THE SOUTHERN GREAT LAKES/MID MISSISSIPPI VALLEY/OHIO VALLEY.
545 AM EDT WED JUL 22 2015 A COLD FRONT WILL MOVE EAST OF THE AREA TODAY.
642 AM EDT WED JUL 22 2015 DRY HIGH PRESSURE FOR WEDNESDAY INTO THE WEEKEND. THERE IS A SHOT AT A NEAR 50 DEGREE LOW TEMP IN THE E RANDOLPH CO AND THE HIGHEST ELEVATIONS IN THE N MOUNTAINS.
104 AM EDT WED JUL 22 2015 A COLD FRONT WILL MOVE ACROSS THE REGION OVERNIGHT.
158 AM EDT WED JUL 22 2015 A COLD FRONT WILL MOVE ACROSS THE REGION OVERNIGHT.
343 AM CDT WED JUL 22 2015 WEAK HIGH PRESSURE IS RESULTING IN CALM WINDS AND MOSTLY CLEAR SKIES.
A WEST COAST TROUGH WILL INFLUENCE THE THE WEATHER ACROSS NORTHERN ARIZONA INTO THE COMING WEEKEND. THE TROUGH WILL PROVIDE A DRY SOUTHWEST FLOW PREVENTING THE MONSOON BOUNDARY OVER SOUTHEAST ARIZONA/NORTHERN MEXICO FROM VENTURING NORTHWARD.
Northwest Montana today will receive some increasing winds and drier conditions during the passage of a dry cold front.