Aikyam-Lab/Synoptic-Bench huggingface dataset:
A STABLE AND DRY ATMOSPHERE IS IN PLACE OVER THE CENTRAL GULF STATES THIS MORNING AS HIGH PRESSURE MOVES ACROSS THE MID- MISSISSIPPI RIVER VALLEY TODAY. /ISSUED 410 AM CST FRI NOV 13 2015/ LARGE 1026MB HIGH PRESSURE RIDGE CONTINUES TO SPREAD OVER THE NATION'S MID-SECTION AND GULF COAST STATES TODAY. BECOMING CENTERED OVER THE LOWER MISSISSIPPI VALLEY TONIGHT. COLDEST TEMPERATURES SINCE OCT 19TH /24 DAYS AGO/ EXPECTED TONIGHT WITH MOST INLAND AREAS REACHING THE LOWER 40S OR POSSIBLY A FEW LOCATIONS IN THE UPPER 30S TONIGHT AFTER WINDS DECOUPLE AND DRAINAGE TAKES PLACE BEFORE DAYBREAK SATURDAY.
/issued 416 AM CST FRI NOV 13 2015/ Another tranquil fall day on tap across southeast New Mexico and west Texas today as quasizonal flow aloft remains over the region and surface ridging results in light southeasterly flow at the surface.
1045 AM EST FRI NOV 13 2015 ANOTHER COLD FRONT WILL SWEEP THROUGH THE AREA THIS EVENING AND BRING EVEN COLDER AIR TO THE REGION THIS WEEKEND. STRONG SOUTHWEST FLOW AHEAD OF NEXT SFC COLD FRONT IS KEEPING LAKE ENHANCED SHOWERS FROM LAKE ONTARIO PRIMARILY NORTH OF FA. LATE TODAY AS THE TROF DROPS INTO THE LAKE BASIN POPS WILL INCREASE TO LIKELY OVER THE NRN/WRN CWA.
The next trough will begin to move onto the west coast on Monday. Ahead of this trough showers and thunderstorms within a southwesterly flow are expected.
244 PM EDT SUN SEP 13 2015 LOW PRESSURE WILL MOVE INTO NEW ENGLAND TONIGHT WHILE HIGH PRESSURE APPROACHES FROM THE WEST. HIGH PRESSURE BUILDS OVER THE MID- ATLANTIC THROUGH TOMORROW MORNING AND REMAINS OVER THE AREA THROUGH MUCH OF THE WEEK. A 500 MB TROUGH AXIS IS ALONG THE APPALACHIANS THIS AFTERNOON. A VORT MAX PERSISTS ACROSS THE MID-ATLANTIC WHILE A COLD FRONT HAS MOVED WELL OFF THE EAST COAST. THE TROUGH AXIS WILL MOVE OVERHEAD TONIGHT AND CLOUDS WILL DIMINISH THIS EVENING. HIGH PRESSURE MOVES INTO THE REGION FROM THE WEST MONDAY. EXPECT LOWS IN THE 60S NEAR THE BAY WHERE WARMER WATER TEMPERATURES WILL KEEP TEMPS/DEWPOINTS HIGHER AND IN THE IMMEDIATE METRO AREAS.
239 PM EDT SUN SEP 13 2015 DRY CANADIAN HIGH PRESSURE WILL EXPAND ACROSS THE EAST COAST TODAY AND PERSIST THROUGH MUCH OF THE UPCOMING WEEK. A COOL AND DRY CANADIAN AIRMASS SETTLES ACROSS THE FORECAST AREA TODAY IN THE WAKE OF THE RECENT COLD FRONT. A DEEP UPPER TROUGH WILL SWING ACROSS THE EASTERN SEABOARD AND THEN OFFSHORE. RIDGE BUILDING OVERHEAD ALLOWS FOR COOL CANADIAN HIGH PRESSURE TO EXPAND ACROSS MUCH OF THE EASTERN CONUS. THIS CREATES COOLER THAN NORMAL TEMPERATURES DESPITE FULL SUNSHINE WITHIN AN ATMOSPHERE CHARACTERIZED BY NEAR RECORD- LOW PWATS (AROUND 0.
WHERE THE MID LEVEL MOISTURE WILL BE THE HIGHEST. THE RIDGE BREAKS DOWN ENOUGH TO ALLOW THE NEXT FRONT TO BE CLOSE ENOUGH FOR ADDITIONAL SHOWERS AND THUNDERSTORMS AS WELL AS SLIGHTLY COOLER TEMPERATURES. AFTERNOON TEMPERATURES WILL BEGIN TO RISE BACK INTO THE LOW TO MID 90S FOR MUCH OF THE WEEK.
201 PM EDT SUN SEP 13 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION THROUGH MONDAY WILL SETTLE OVER THE MID ATLANTIC BY MIDWEEK.
157 PM EDT SUN SEP 13 2015 A DEEP AND UNSEASONABLY COLD UPPER TROUGH WILL MOVE EAST ACROSS PENNSYLVANIA TODAY. FAIR AND WARMER CONDITIONS WILL RETURN BEGINNING MONDAY. VIZ LOOPS SHOW AN EXTENSIVE SHIELD OF STRATO-CU OVER THE LOWER LAKES AND MUCH OF THE MID ATLANTIC. HIGHS RANGING FROM THE MID 50S NW TO MID 60S SE WILL BE SOME 5-10 DEG COOLER THAN NORMAL FOR THE SECOND WEEK OF SEPTEMBER. TO THE LOWER AND MID 70S OVER SOUTH-CENTRAL PA MID TO UPPER 40S ELSEWHERE. AS HIGH PRESSURE BUILDS ACROSS THE AREA.
CUMULUS IS DEVELOPING NICELY TODAY BUT LITTLE VERTICAL DEVELOPMENT IS EXPECTED WITH DRYING MID LEVELS FROM HIGH PRESSURE. THE DRIER AIR AND LIMITED CLOUD COVER WILL ALLOW DAYTIME HIGH TEMPERATURES TO REACH THE UPPER 80S TO GENERALLY THE LOW 90S. WITH MOIST SOILS IN PLACE AND COOLER TEMPERATURES FORECAST.
334 PM CDT SUN SEP 13 2015 A NICE AFTERNOON IS UNDERWAY FOR THE REGION WITH 3 PM CDT TEMPERATURES RANGING FROM THE LOW 80S ALONG THE COAST TO UPPER 80S INLAND UNDER MOSTLY SUNNY SKIES. AFTERNOON WATER VAPOR IMAGERY SHOWS DRY NORTHWESTERLY FLOW ALOFT WITH THE REGION LOCATED ON THE BACKSIDE OF A DEPARTING EASTERN CONUS TROUGH. AN EXPANSIVE AREA OF HIGH PRESSURE STRETCHED FROM THE NORTHWESTERN GULF OF MEXICO INTO THE GREAT LAKES AND THIS FEATURE WAS PROMOTING GENERALLY LIGHT EASTERLY TO SOUTHEASTERLY WINDS ACROSS THE REGION. ALBEIT A DEGREE OR TWO WARMER WITH MORE OF A SOUTHERLY COMPONENT TO THE WINDS /HIGHS MID TO UPPER 80S/. AS A COASTAL TROUGH OFF MEXICO PUSHES INTO COASTAL MEXICO MONDAY.
610 PM EDT SUN SEP 13 2015 HIGH PRESSURE WILL EXPAND ACROSS THE SOUTHERN GREAT LAKES TONIGHT.
315 PM EDT SUN SEP 13 2015 AN UPPER LEVEL TROUGH WILL MOVE TO THE NORTHEAST OF THE REGION TONIGHT. HIGH PRESSURE RETURNS TONIGHT THROUGH MIDWEEK.
220 PM CDT SUN SEP 13 2015 THE 19Z SURFACE ANALYSIS INDICATED THAT THE LARGE AREA OF HIGH PRESSURE WAS MOVING EASTWARD INTO THE TENNESSEE VALLEY REGION. TO THE LOW-MID 70S IN NORTHERN ALABAMA. CLEAR SKIES AND NEAR CALM WINDS TONIGHT WILL RESULT IN GOOD RADIATIONAL COOLING AS THE HIGH PRESSURE AREA MOVES ACROSS THE REGION. WILL GO A LITTLE LOWER THAN GUIDANCE TEMPS ACROSS MOST OF THE FORECAST AREA DUE TO THE ORIENTATION OF THE HIGH AND LIGHT WINDS.
403 PM EDT SUN SEP 13 2015 HIGH PRESSURE WILL EXTEND ACROSS THE REGION FOR MUCH OF THE WEEK. A WEAK TROUGH OF LOW PRESSURE WILL DEVELOP OFF THE SOUTHEAST U. STRONG HIGH PRESSURE WILL SHIFT OVER THE APPALACHIANS AND BECOME CENTERED OVER THE MID ATLANTIC STATES LATE. DRY CONDITIONS WILL PERSIST AS CANADIAN HIGH PRESSURE HOLDS FIRM. HIGHS WILL TOP OUT IN THE LOWER-MID 80S. THE LOW-LEVEL FLOW WILL VEER TO THE NORTHEAST MONDAY NIGHT AS THE CENTER OF HIGH PRESSURE REFORMS NEAR THE VIRGINIA TIDEWATER AND A COASTAL TROUGH BEGINS TO DEVELOPS JUST OFF THE COAST. LOWS WILL RANGE FROM THE UPPER 50S WELL INLAND TO THE LOWER 70S AT THE BEACHES.
137 PM PDT SUN SEP 13 2015 DRY TODAY WITH SLIGHTLY COOLER WEATHER.
SLIGHTLY COOLER TEMPS FURTHER EAST. FLATTENED UPPER LEVEL RIDGE WAS OVER THE AREA THIS MORNING WITH A FAIRLY STRONG ZONAL UPPER JET MOVING INTO CENTRAL CANADA. RIDGE MOVES TO THE EASTERN CONUS BY 84 HOURS. COUPLE OF SHORT WAVES OVER THE GULF OF AK CARVE OUT AN UPPER TROUGH OVER THE WESTERN US THIS PERIOD WHICH BUILD RIDGE OVER THE EASTERN CONUS.
318 PM EDT SUN SEP 13 2015 LOW PRESSURE OVER SOUTHERN ONTARIO WILL SLOWLY PULL NORTHWARD TONIGHT AND MONDAY BRINGING AN END TO THE CLOUDS AND SHOWERS OVER OUR AREA. HIGH PRESSURE AND WARMER AIR WILL RETURN FOR MID WEEK. AND SOME TROFING AND RAINS TO THE WRN U.
NEAR TERM AND SHORT TERM SECTIONS HAVE BEEN UPDATED BELOW QUIET WEATHER CAN BE EXPECTED THE NEXT FEW DAYS AS AN UPPER RIDGE DOMINATES THE WEATHER MAP OVER CENTRAL INDIANA. DIURNAL CU WILL DISSIPATE AROUND SUNSET LEAVING CLEAR SKIES IN PLACE OVERNIGHT UNDER BUILDING HIGH PRESSURE. UPPER RIDGING WILL BE THE RULE THROUGH THE SHORT TERM BRINGING DRY WEATHER AND WARM TEMPERATURES TO CENTRAL INDIANA.
THROUGH TONIGHT UPPER LEVEL LOW OVER THE EASTERN GREAT LAKES WILL CONTINUE TO TRACK AWAY FROM THE AREA TONIGHT. UPPER RIDGING WILL FILL IN FROM THE WEST. SLIGHT GRADIENT AND WARMER THERMAL FIELDS WILL YIELD WARMER TEMPERATURES THAN LAST NIGHT.
HIGH PRESSURE WILL PROVIDE US WITH DRY AND WARMING WEATHER THROUGH THE UPCOMNIG WORK WEEK. A WEAK AND HARD-TO-DISCERN COLD FRONT WILL BE THE CAUSE OF THE WEEKEND PRECIP. CHATTANOOGA AIRPORT, TN 50 80 55 83 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 49 77 53 81 / 0 0 0 0 OAK RIDGE, TN 48 78 52 81 / 0 0 0 0 TRI CITIES AIRPORT, TN 43 76 46 80 / 0 0 0 0.
EXPECT A SEASONALLY COOL NIGHT ACROSS THE MID STATE WITH LOWS ACROSS A WIDE SWATH OF THE MID STATE IN THE UPPER 40S AS RIDGING CONDITIONS SFC/ ALOFT DOMINATE. A DEVELOPING RIDGING PATTERN WILL EVENTUALLY TRANSITION TO A PREDOMINATE SWLY FLOW PATTERN AS TROUGHING DEEPENS ACROSS THE WRN U.
537 PM EDT SUN SEP 13 2015 COOL AND DRY HIGH PRESSURE WILL SETTLE OVER THE REGION THROUGH MIDWEEK. DRY CANADIAN HIGH PRESSURE WILL DOMINATE THROUGH THE PERIOD. AS TEMPS MODERATE JUST SLIGHTLY IN RESPONSE TO THE UPPER TROUGH PROGRESSING QUICKLY OFF THE EAST COAST. SOME WEAK SHORT WAVE ENERGY WILL ROTATE THRU THE RIDGE AND OVER THE AREA. AN UPPER RIDGE WILL DOMINATE OVER THE EASTERN STATES. WHILE A TROF PERSISTS OVER THE WEST.
247 PM EDT SUN SEP 13 2015 LOW PRESSURE OVER SOUTHERN ONTARIO WILL SLOWLY PULL NORTHWARD TONIGHT AND MONDAY BRINGING AN END TO THE CLOUDS AND SHOWERS OVER OUR AREA. HIGH PRESSURE AND WARMER AIR WILL RETURN FOR MID WEEK. AND SOME TROFING AND RAINS TO THE WRN U. THE 00Z SUNDAY SUITE OF GLOBAL MODELS HAS REMAINED CONSISTENT, IN SHOWING A LARGE DOMINANT UPPER-LEVEL RIDGE ACROSS THE EASTERN U.
232 PM CDT SUN SEP 13 2015 An upper level ridge is now impacting the western 2/3rds of the country with an upper trough over the eastern conus. This upper ridging will keep rain and storm chances confined to the higher terrain and surrounding plains of West Texas and southeast New Mexico this afternoon and evening. Temperatures today will once again warm back up to above normal with highs in the lower to mid 90s across most areas. The upper ridge will become better established over the region on Monday as an upper trough moves over the western coast.
518 PM EDT SUN SEP 13 2015 HIGH PRESSURE WILL BE OVER THE REGION INTO MONDAY. LOW TEMPERATURES TONIGHT WILL BE IN THE LOWER 50S NEAR LAKE MICHIGAN AND IN THE 40S ELSEWHERE. SHOULD ALLOW HIGH TEMPS TO RISE INTO THE LOW TO UPPER 70S ON MONDAY. TRANQUIL WX TO START AS RIDGING SFC AND ALOFT BLD ACRS THE LAKES THROUGH MID PD AHD OF VIGOROUS SW TROUGH EJECTS OUT OF THE NRN ROCKIES. UNTIL THEN TURNING MUCH WARMER W/WELL ABV NORMAL TEMPS MANIFESTING BY TUE AND CONTG THROUGH FRI. VFR CONDITIONS EXPECTED THROUGH THE TAF PD AS HIGH PRESSURE BUILDS ACROSS THE REGION.
311 PM MDT SUN SEP 13 2015 LIGHT TO MODERATE WESTERLY FLOW ALOFT WILL BE CONTINUING ACROSS COLORADO TONIGHT AS AN UPPER LEVEL RIDGE AXIS MOVES OVER THE DESERT SOUTHWEST. SOME MOISTURE FROM ARIZONA IS EXPECTED TO MOVE OVER THE MOUNTAINS AND FUEL A CHANCE OF THUNDERSTORMS OVER THE HIGHER TERRAIN.
AND SETS UP WITH FAVORABLE INVERSION HEIGHT AND CROSS RIDGE ANGLE TO GET SOME ENHANCEMENT ALONG AND DOWNSTREAM OF THE BUFFALO RIDGE AT TIME TONIGHT. WITH INCREASE IN LOW LEVEL JET AND SOME CONVERGENCE OF MOISTURE IN THE LOWER TO MID LEVELS.
925 MB TEMPS WARMING TO THE HIGH TEENS CELSIUS AND MIXING WELL THROUGH THAT LEVEL FAVORS HIGHS REACHING THE UPPER 70S TO LOWER 80S. ALSO AIDING THE WARMING WILL BE GUSTY SOUTH-SOUTHWEST WINDS AND DEWPOINTS REMAINING IN THE LOWER TO MID 50S. WIND SPEEDS WILL THEN INCREASE AND BECOME GUSTY UP TO 25 KT DURING THE DAY MONDAY AS THE SURFACE GRADIENT STRENGTHENS AHEAD OF LOW PRESSURE DEVELOPING OVER THE NORTHERN HIGH PLAINS.
WITH LOWS DROPPING INTO THE LOW TO MID 40S INLAND OF LAKE MICHIGAN. HIGHS WILL BE IN THE LOW TO MID 70S. SHOULD ALLOW HIGH TEMPS TO RISE INTO THE LOW TO UPPER 70S ON MONDAY. TRANQUIL WX TO START AS RIDGING SFC AND ALOFT BLD ACRS THE LAKES THROUGH MID PD AHD OF VIGOROUS SW TROUGH EJECTS OUT OF THE NRN ROCKIES. UNTIL THEN TURNING MUCH WARMER W/WELL ABV NORMAL TEMPS MANIFESTING BY TUE AND CONTG THROUGH FRI. VFR CONDITIONS EXPECTED THROUGH THE TAF PD AS HIGH PRESSURE BUILDS ACROSS THE REGION.
ESPECIALLY IN THE HIGHER TERRAIN WITH A TIGHTER PRESSURE GRADIENT TO THE EAST. HIGH PRESSURE WILL CONTINUE TO SLIDE INTO THE REGION.
HIGH PRESSURE SHIFTING EAST AND WINDS WILL BECOME SOUTHEAST AT LESS THAN 10KTS.
655 PM EDT SUN SEP 13 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW DRY AND GRADUALLY WARMER CONDITIONS CAN BE EXPECTED ACROSS CENTRAL INDIANA THROUGH MUCH OF THE WEEK THANKS TO HIGH PRESSURE. A COLD FRONT WILL BRING CHANCES FOR RAIN LATE IN THE WEEK AND INTO THE WEEKEND. PREVIOUS DISCUSSION AN UPPER TROUGH WILL CONTINUE TO EXIT THE AREA TODAY.
WITH HIGH PRESSURE OVER THE REGION SKIES HAVE BEEN CLEAR WITH LIGHT NORTHEAST TO EAST WINDS. TEMPS TODAY HAVE BEEN RUNNING AROUND THE LOWER 80S WITH RELATIVE HUMIDITY AROUND 35 TO 40 PERCENT. HIGH PRESSURE ESTABLISHED OVER SE TX AND SRN LA WILL PRODUCE EAST WINDS. HIGH PRESSURE WILL MOVE EAST DURING THE DAY WITH WINDS SWINGING AROUND TO THE SE.
139 PM EDT SUN SEP 13 2015 AN UPPER LEVEL TROUGH OVER THE AREA WILL LIFT NORTHEAST OUT OF THE AREA BY MONDAY AS HIGH PRESSURE SPREADS INTO THE AREA FROM THE SOUTH.
624 PM EDT SUN SEP 13 2015 AN UPPER TROUGH WILL SHIFT EASTWARD OVERNIGHT. A DRY AND WARMER WEEK AHEAD. AS TROUGH AXIS QUICKLY SWINGS INTO EASTERN PA. STILL ARE DEALING WITH COLD AIR ADVECTION AND NORTHWEST FLOW ON THE BACKSIDE OF THE EXITED TROUGH. HEIGHTS QUICKLY RISE ON MONDAY AS TROUGH HEADS OUT OVER THE ATLANTIC. UPPER RIDGE WILL BUILD EASTWARD THROUGH THE PERIOD.
258 PM CDT SUN SEP 13 2015 Ridge axis shifting east across the state early this afternoon. With southerly winds setting up on the back side of the ridge, milder conditions are expected tonight. A pleasant stretch of late summer weather expected through mid week across IL as upper level high pressure ridge builds across the eastern U.
327 PM CDT SUN SEP 13 2015 TRANQUIL WEATHER CONTINUES IN THE SHORT TERM WITH HIGH PRESSURE RETREATING. HIGH PRESSURE EXITING TO THE SOUTHEAST WILL CONTINUE THE DRY WEATHER THROUGH MONDAY. PRESSURE GRADIENT INCREASES SOME AHEAD OF THE NEXT COLD FRONT WHICH WILL MOVE INTO NORTHWEST MINNESOTA MONDAY AND STALL. TEMPERATURES ARE EXPECTED TO WARM INTO THE MID 80S TO THE LEE OF THE BUFFALO RIDGE WITH LOWER 80S COMMON INTO CENTRAL MN.
230 PM EDT SUN SEP 13 2015 NO WEATHER CONCERNS IN THE SHORT TERM AS DRY HIGH PRESSURE DOMINATES THROUGH EARLY THIS WEEK. DESPITE THESE COOLER LOWS.
A DEEPENING TROUGH CONTINUES TO DIG IN FROM THE EASTERN GREAT LAKES SOUTHWARD ALONG THE APPALACHIAN MOUNTAIN CHAIN AND OVER THE FLORIDA PANHANDLE. THE CLOSED LOW ASSOCIATED WITH THIS TROUGH IS OVER WESTERN NEW YORK AND WILL LIFT TO THE NORTHEAST AND WILL BE LOCATED OVER NEW ENGLAND BY MONDAY EVENING. AS THE TROUGH MOVES NORTHEAST. MID/UPPER LEVEL RIDGING BUILDS OVER THE FLORIDA PENINSULA AND SOUTHEAST CONUS. A LOW PRESSURE CENTER OVER NEW YORK STATE EXTENDS A COLD FRONT SOUTHWEST ALONG THE EASTERN SEABOARD. HIGH PRESSURE OVER THE CENTRAL U. AS HIGH PRESSURE SETS UP. THE INTERACTION BETWEEN THE HIGH TO THE NORTH AND FRONT DOWN SOUTH WILL CAUSE A SHIFT IN WINDS TO THE EAST NORTHEAST THROUGH THE WEEK. TEMPERATURES WILL BE A FEW DEGREES COOLER ON SUNDAY DUE TO EXTENSIVE CLOUDINESS AND RAINFALL.
THE TROUGH ACROSS THE NORTHERN GULF OF MEXICO AND NORTH CENTRAL FLORIDA WILL QUIETLY DISINTEGRATE WHILE AN AREA OF HIGH PRESSURE BUILDS IN OVER THE SOUTHEASTERN STATES THROUGH MONDAY NIGHT. AMPLE MOISTURE WILL GRADUALLY MOVE BACK INTO THE KEYS AREA AS THE RIDGE TURNS WINDS MORE NORTHEAST TO EAST OVERNIGHT AND MONDAY.
SURFACE TROF LIES A BIT WEST OF THIS FEATURE. DEVELOPMENT OF A LEESIDE SFC TROF OF LOW PRESSURE COUPLED WITH SOME MOISTURE AND ADEQUATE ATMOSPHERIC INSTABILITY MAY RESULT IN ISOLD SHOWERS AND TSTMS THIS AFTERNOON AND TONIGHT. WITH A MEANDERING LEESIDE TROF OF LOW PRESSURE REFLECTED AT THE SFC.
SOUTHERLY FLOW PREVAILS THE NEXT SEVERAL DAYS WITH WARMER TEMPERATURES AND SPORADIC CHANCES FOR RAIN. HIGH PRESSURE REMAINS TO OUR EAST TODAY. MIXING TO ABOUT 900 MB COMBINED WITH WARMER TEMPS ALOFT SHOULD YIELD HIGHS IN THE MID 70S TO AROUND 80. SLIGHTLY WARMER TEMPS ALOFT SHOULD RESULT IN ABOVE NORMAL HIGHS IN THE MID 80S.
320 PM EDT SUN SEP 13 2015 STRONG HIGH PRESSURE IS MOVING OVERHEAD THIS AFTERNOON. AS WE CONTINUE TO SIT IN THE LOW AND MID 60S ACROSS MUCH OF EASTERN KY. AND A SUBSIDENCE INVERSION SETS IN WITH THE HIGH PRESSURE OVERHEAD. WOULDN/T BE SURPRISED IF WE SEE THOUGH GENERALLY MUCH OF THE REGION WILL BE IN THE LOW TO MID 40S. HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE DAY TOMORROW. INTO THE LOW AND MID 70S FOR AFTERNOON HIGHS.
This, combined with clear skies, will allow temperatures to fall into the middle to upper 50s across inland areas, and the lower 60s along the coast. So not quite to the lowest potential that the dewpoints would suggest, but lower than we've seen since early May.
WITH LOWS MAYBE A DEGREE OR TWO ABOVE THE COOLER TEMPERATURES SEEN THIS MORNING. AGAIN WINDS ARE EXPECTED TO DECREASE TO LIGHT AND VARIABLE AS HIGH PRESSURE OFF THE COAST WEAKENS AND THE DIURNAL PRESSURE GRADIENT RELAXES. LOW LEVEL MOISTURE RECOVERY WILL BEGIN MOST SIGNIFICANTLY LATE MONDAY NIGHT AS THE 850 MB FLOW ENHANCES OVER THE RIO GRANDE VALLEY AND UP INTO THE PANHANDLE DUE TO LOW PRESSURE OFF THE LEE OF THE ROCKIES.
419 PM MDT SUN SEP 13 2015 A PATTERN CHANGE IS IN STORE FOR THE REGION BEGINNING TOMORROW AS AN UPPER LEVEL TROUGH DIGS INTO THE PACIFIC NORTHWEST AND REMAINS QUASISTATIONARY THROUGH MIDWEEK. BUT CONVERSE COUNTY SHOULD SEE HUMIDITIES BOTTOM OUT IN THE LOW TEENS PRIOR TO STRONGEST MOISTURE ADVECTION. COULD SEE GUSTY ERRATIC DOWNDRAFT WINDS PRODUCED FROM THIS ACTIVITY AS VIRGA LOOKS TO BE QUITE PREVALENT WITH THE LOWER HUMIDITIES IN THE BOUNDARY LAYER.
346 PM EDT SUN SEP 13 2015 A LOW PRESSURE AREA AT THE SURFACE AND ALOFT WILL BRING SHOWERS TO THE NORTH COUNTRY TONIGHT AND MONDAY. A STRONG RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT OVER THE OHIO VALLEY WILL BUILD NORTHEAST INTO THE REGION MONDAY NIGHT AND WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE REMAINDER OF THE WEEK.
250 PM EDT SUN SEP 13 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO CENTRAL NC THROUGH MONDAY THEN REMAIN OVERHEAD THROUGH THE REMAINDER OF THE WORK WEEK. A DEEP UPPER LEVEL OVER NEW ENGLAND AND ASSOCIATED TROUGH WILL LIFT EAST-NE AWAY FROM CENTRAL NC TONIGHT. A MODIFIED CANADIAN HIGH PRESSURE SYSTEM OVER THE LOWER-MID MS VALLEY TO DRIFT EWD. NLY LOW LEVEL FLOW HAS ADVECTED A COOLER DRIER AIR MASS OVER CENTRAL NC AS EVIDENT BY MID AFTERNOON DEWPOINTS IN THE 40S OVER AREAS WEST OF I-95. AN AREA OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL MAINTAIN A DRY AND STABLE ATMOSPHERE ACROSS THE REGION.
120 PM EDT SUN SEP 13 2015 CURRENT FORECAST STILL ON TRACK WITH MOSTLY SUNNY SKIES AND COOLER TEMPS IN THE 70S STILL ON TAP FOR THIS AFTERNOON. /ISSUED 348 AM EDT SUN SEP 13 2015/ DEEP UPR TROUGH CONTINUES TO INFLUENCE MUCH OF THE CONUS EAST OF THE MISSISSIPPI RIVER. BRINGING MUCH COOLER AND DRIER AIR TO NEARLY ALL OF NORTH/CENTRAL GA. UPR TROUGH AXIS WILL PUSH EAST OF THE STATE TODAY. THE CENTER OF HIGH PRESSURE WILL SETTLE OVER THE SRN APPALACHIANS WITH UNSEASONABLY COOL TEMPERATURES BOTTOMING OUT IN THE 40S AND LWR 50S BY DAYBREAK MONDAY. A WEAK UPR RIDGE WILL APPROACH THE AREA AS THE LOW LVL FLOW SHIFTS AROUND TO THE EAST-SOUTHEAST. THIS WILL ALLOW FOR SLIGHTLY WARMER TEMPS/INCREASE IN HUMIDITY BUT ABUNDANT SUNSHINE WILL CONTINUE.
332 PM CDT SUN SEP 13 2015 SPOTTY SHOWERS AND THUNDERSTORMS WILL BE THE MAIN CONCERN IN THE SHORT TERM ALONG WITH WARMER TEMPERATURES AND GUSTY SOUTH WINDS. THE TROUGH OVER THE EAST COAST MOVES OUT INTO THE ATLANTIC. WHILE THE MID TROPOSPHERIC TROUGH IN THE WEST DEEPENS.
THEN THE ACTIVITY SHOULD MOVE EAST INTO THE CENTRAL AND EASTERN CWA TONIGHT AS THE LOW LEVEL JET PROVIDES ADDED SUPPORT. UPPER LEVEL RIDGE OF HIGH PRESSURE WILL SET UP SHOP FROM NORTHERN MEXICO NORTHEAST INTO THE NORTHEAST U.
240 PM EDT SUN SEP 13 2015 AN UPPER TROUGH WILL MAINTAIN COOL AND UNSETTLED WEATHER TODAY. LAKE ENHANCED RAIN SHOWERS WILL CONTINUE THROUGH THIS AFTERNOON BEFORE SUBSIDENCE GRADUALLY DRIES OUT THE REGION FROM WEST TO EAST AS THE UPPER TROUGH LIFTS NORTHEASTWARD. CLEARING SKIES AND A RELAXING WIND FIELD OVERNIGHT SHOULD ALLOW FOR TEMPERATURES TO FALL BELOW SEASONAL AVERAGES WITH MOST LOCATIONS LOOKING AT LOWS 10 DEGREES COOLER THAN NORMAL PER THE LATEST MAV/MET GUIDANCE VALUES. MID/UPPER RIDGE IS PROGGED TO AMPLIFY OVER THE EASTERN CONUS AS TROUGHING DEVELOPS OVER THE WEST COAST. DRY AND WARM CONDITIONS ARE EXPECTED THROUGH LATE WEEK WITH RIDGING PROGGED ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN BY THE WEEKEND AS THE RIDGE MOVES EAST.
330 PM CDT SUN SEP 13 2015 (Tonight and Tomorrow) Upper level ridging will build back over the forecast area through tomorrow with dry conditions prevailing. Afternoon highs tomorrow will generally be in the lower 90s after overnight lows ranging from the mid 60s across our southern counties to around 70 degrees in the northern Big Country.
458 PM EDT SUN SEP 13 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION THROUGH MONDAY WILL SETTLE OVER THE MID ATLANTIC BY MIDWEEK.
258 PM EDT SUN SEP 13 2015 AN UPPER TROUGH WILL MAINTAIN COOL AND UNSETTLED WEATHER TODAY. LAKE ENHANCED RAIN SHOWERS WILL CONTINUE THROUGH THIS AFTERNOON BEFORE SUBSIDENCE GRADUALLY DRIES OUT THE REGION FROM WEST TO EAST AS THE UPPER TROUGH LIFTS NORTHEASTWARD. CLEARING SKIES AND A RELAXING WIND FIELD OVERNIGHT SHOULD ALLOW FOR TEMPERATURES TO FALL BELOW SEASONAL AVERAGES WITH MOST LOCATIONS LOOKING AT LOWS 10 DEGREES COOLER THAN NORMAL PER THE LATEST MAV/MET GUIDANCE VALUES. UPPER RIDGE WILL BUILD EASTWARD THROUGH THE PERIOD.
428 PM EDT SUN SEP 13 2015 THE AVIATION SECTION HAS BEEN UPDATED BELOW QUIET WEATHER CAN BE EXPECTED THE NEXT FEW DAYS AS AN UPPER RIDGE DOMINATES THE WEATHER MAP OVER CENTRAL INDIANA. DIURNAL CU WILL DISSIPATE AROUND SUNSET LEAVING CLEAR SKIES IN PLACE OVERNIGHT UNDER BUILDING HIGH PRESSURE. UPPER RIDGING WILL BE THE RULE THROUGH THE SHORT TERM BRINGING DRY WEATHER AND WARM TEMPERATURES TO CENTRAL INDIANA.
WHILE THE CHILLY AIR MASS FROM THE UPPER LEVEL LOW PRESSURE TO OUR EAST IS STARTING TO MODIFY. NOTHING UPSTREAM EXCEPT A THIN NEARLY NON-EXISTENT BAND OF HIGHER LEVEL WAA CLOUDS ASSOCIATED WITH A WARM FRONT PLOWING THROUGH ONTARIO. AS NOT ONLY DOES THE LOW LEVEL THERMAL REGIME WARM AND BECOME UNFAVORABLE. TO THE TO LOWER HALF OF THE 50S ACROSS THE NW LOWER COAST AND MUCH OF EASTERN UPPER WITH STRONGER WINDS COMING OFF THE WARMER WATERS.
1118 AM PDT SUN SEP 13 2015 A dry cold front will bring breezy conditions along with cooler temperatures today. Moisture sagging south with the cold front is resulting in orographic cirrus along a line from Wenatchee to Colville. /sb 18Z TAFS: Winds will be the main issue today as a dry cold front presses through the region.
A LOW PRESSURE SYSTEM WILL DEVELOP OVER THE PACIFIC NORTHWEST TONIGHT AND WILL THEN MOVE ACROSS THE AREA ON MONDAY.
IT LOOKS DRY ENOUGH IN THE LOW-LEVELS ELSEWHERE FOR CONTINUED VFR CONDITIONS ALONG THE I-35 CORRIDOR. THEY ARE DISSIPATING AS THEY MOVE FURTHER SOUTH INTO LOWER LEVEL RIDGING AND A DRIER AIRMASS OVER CENTRAL AND SOUTH CENTRAL TEXAS. UPPER LEVEL RIDGE BUILDS OVER SOUTH CENTRAL TEXAS TODAY THROUGH MONDAY. A DRY LOWER LEVEL RIDGE SLOWLY GIVES WAY AS AN UPPER LEVEL TROUGH MOVING ACROSS THE NORTHERN ROCKIES LOWERS SURFACE PRESSURES IN THE PLAINS ALLOWING LOWER LEVEL FLOW OFF THE GULF OF MEXICO TO DEVELOP.
115 PM EDT SUN SEP 13 2015 CANADIAN HIGH PRESSURE WILL BUILD INTO CENTRAL NC THROUGH MONDAY THEN REMAIN OVERHEAD THROUGH THE REMAINDER OF THE WORK WEEK. STRONG VORT CENTER ROUNDING THE BASE OF THE UPPER LEVEL TROUGH OVER CENTRAL NC MAY CAUSE A SCATTERED CU FIELD TO DEVELOP IN VICINITY OF THE VIRGINIA BORDER COUNTIES. MAX TEMPS THIS AFTERNOON STILL ON TARGET FOR THE LOW-MID 70S NW TO THE MID-UPPER 70S SE. BENEATH STRONG HEIGHT RISES ALOFT BEHIND THE LIFTING UPPER TROUGH.
225 PM EDT SUN SEP 13 2015 COOL AND DRY HIGH PRESSURE WILL SETTLE OVER THE REGION THROUGH MIDWEEK. DRY CANADIAN HIGH PRESSURE WILL DOMINATE THROUGH THE PERIOD. AS TEMPS MODERATE JUST SLIGHTLY IN RESPONSE TO THE UPPER TROUGH PROGRESSING QUICKLY OFF THE EAST COAST. SOME WEAK SHORT WAVE ENERGY WILL ROTATE THRU THE RIDGE AND OVER THE AREA. AN UPPER RIDGE WILL DOMINATE OVER THE EASTERN STATES. WHILE A TROF PERSISTS OVER THE WEST.
327 PM EDT SUN SEP 13 2015 AN EARLY SEASON COLD FRONT HAS SWEPT THROUGH THE FLORIDA PANHANDLE TODAY WITH PLUMMETING DEWPOINTS THERE. MID LEVEL TROUGH OVER THE EASTERN SEABOARD IS QUICKLY LIFTING OUT SO THE PUSH FOR THE FRONT ENDS. HIGH PRESSURE WILL BUILD OVER THE MID ATLANTIC STATES WITH A QUICK RETURN OF EASTERLY WIND FLOW LOCALLY.
AFTERNOON TEMPS WILL BEGIN MODERATING MONDAY AS HIGH PRESSURE BEGINS TO SHIFT EASTWARD AND WINDS BECOME EASTERLY. OVERNIGHT TEMPERATURES WILL WARM MUCH MORE QUICKLY WITH LOWS MONDAY NIGHT FORECAST TO BE 7 TO 12 DEGREES WARMER THAN TONIGHT/S LOWS.