Aikyam-Lab/Synoptic-Bench huggingface dataset:
100 PM EST THU NOV 12 2015 HIGH PRESSURE WEAKENS AND MOVES EAST TODAY. LOW PRESSURE TRACKS ACROSS NORTHERN MAINE ON FRIDAY. HIGH PRESSURE BUILDS EAST THIS WEEKEND. BUT THE LOW CLOUDS WILL TEND TO FILL IN ACROSS THE AREA THIS MORNING. PLENTY OF MOISTURE WL OVERRUN BNDRY DRG THE MRNG HRS WITH UPR TROF SWEEPING THRU CWA IN THE AFTN. LOW PRESSURE WL SHIFT THRU THE CANADIAN MARITIMES ON FRI NGT THO 00Z GFS IS SLOWEST OF ALL MED RANGE GUIDANCE, LKLY BECAUSE IT CLOSES OFF H5 LOW FRI EVNG WHEREAS RMNDR OF MODELS DO NOT, THUS WL DISCARD SOLN. LAGGING S/WV IN ASSOC WITH DEPARTING UPR TROF WL BRING ISOLD SNOW SHOWERS ACRS THE ST. MODERATING TEMPS EXPECTED THRU THE EXTNDD PD AS H5 RIDGE BUILDS IN.
STORM SYSTEM CONTINUES TO TREK NORTHEAST ACROSS THE GREAT LAKES WHILE THE COLD FRONT THAT PUSHED ACROSS SOUTH TEXAS TODAY HAS MOVED SOUTH OF THE RIO GRANDE. LINE OF SHOWERS ASSOCIATED WITH THE COLD FRONT HAS EXITED TO THE SOUTH BUT SOME AREAS OF LIGHT RAIN AND DRIZZLE ARE DEVELOPING. PRIMARILY ACROSS THE LOWER VALLEY. WITH OVERNIGHT LOWS IN THE UPPER 50S AND LOWER 60S NORTH AND THE LOWER TO MID 60S ACROSS THE VALLEY. COASTAL TROUGH STARTS TO DEVELOP TONIGHT ALONG THE NORTHEAST MEXICO COAST. WHILE THE COASTAL TROUGH CONTINUES TO DEVELOP.
CURRENT FORECAST IS ON TRACK CALLING FOR A SLIGHT CHANCE OF RAIN AND SNOW FRIDAY IN NRN-MOST AREAS AS A WEAK WARM FRONT MOVES THROUGH.
358 PM CST THU NOV 12 2015 AREA SURFACE OBSERVATIONS AND VISIBLE SATELLITE IMAGERY SHOWS THE COLD FRONT PUSHING WELL OFFSHORE INTO THE NORTHERN GULF AND EASTWARD INTO NORTHERN PORTIONS OF FL AS OF MID AFTERNOON.
COLD FRONT THAT HAS PUSHED ACROSS MUCH OF THE AREA IS JUST NOW PUSHING ACROSS KBRO.
238 PM CST THU NOV 12 2015 Surface ridging centered over Texas today under zonal flow aloft, resulting in a beautiful Fall day across west Texas and southeast New Mexico with light winds and clear skies in place.
LOW PRESSURE TRACKS ACROSS NORTHERN MAINE ON FRIDAY. HIGH PRESSURE BUILDS EAST THIS WEEKEND. LOW PRESSURE OVER THE CENTRAL GREAT LAKES WILL CONTINUE TO MOVE TO THE NORTHEAST INTO QUEBEC PROVINCE TONIGHT THEN ACROSS NORTHERN MAINE LATE IN THE DAY FRIDAY. STEADY RAIN IS THEN EXPECTED TO GIVE WAY TO SHOWERS BY MID MORNING FRIDAY AS LOW PRESSURE MOVES TO THE EAST OF THE REGION. COLDER AIR IS THEN EXPECTED TO FILTER IN LATE IN THE DAY BEHIND THE LOW. TURNING COOLER AND BREEZY FOR THE WEEKEND.
1251 PM EST THU NOV 12 2015 LOW PRESSURE MOVING ACROSS THE GREAT LAKES WILL PUSH A COLD FRONT THROUGH OUR AREA THIS AFTERNOON AND EVENING. WARM FRONT ALOFT IS FINISHING ITS PUSH THROUGH THE AREA. ON THE FRONT SIDE OF LARGE LOW PRESSURE SYSTEM.
1050 AM CST THU NOV 12 2015 HIGH PRESSURE RIDGE BUILDING INTO AREA.
328 PM EST THU NOV 12 2015 LOW PRESSURE OVER THE EASTERN GREAT LAKES WILL MOVE EAST ACROSS NORTHERN MAINE AND THEN INTO THE MARITIMES LATE TONIGHT WITH A TRAILING COLD FRONT THAT WILL MOVE THROUGH THE REGION OVERNIGHT. SCATTERED RAIN SHOWERS IN THE MOUNTAINS AND COOLER TEMPERATURES ARE EXPECTED FRIDAY BEHIND THE COLD FRONT.
341 PM CST THU NOV 12 2015 INTENSE LOW PRESSURE (987 MB) WAS CENTERED NEAR MONTREAL CANADA WITH HIGH PRESSURE IN THE SOUTHERN PLAINS. THE FIRST AREA OF STRATUS HAS PUSHED EAST OF THE CWA BUT A STRONG VORT MAX WAS ROTATING SOUTHWARD ON THE BACK SIDE OF THE GREAT LAKES TROUGH. MINIMUM TEMPERATURES WILL BE IN THE LOWER 30S AT MOST LOCATIONS. AS THE GREAT LAKES TROUGH LINGERS. SKIES SHOULD BE MOSTLY SUNNY AS HIGH PRESSURE RIDGE EDGES CLOSER TO THE CWA FROM THE WEST. GREAT LAKES TROUGH MAY KEEP STRATUS LINGERING ACROSS SOUTHERN WI AND NORTHEAST IL. EXPECT SURFACE RIDGING AND IDEAL COOLING CONDITIONS FOR LOWS IN THE MID 20S TO LOW 30S.
332 PM CST THU NOV 12 2015 A 1025 MB HIGH PRESSURE CELL MOVING ACROSS NORTHERN STATE THIS AFTERNOON PARTIALLY CLEARING NORTHERN CWA SKIES OUT.
659 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THE END OF THE WEEK.
A STRONG SURFACE PRESSURE GRADIENT WILL ALSO CONTINUE AS HIGH PRESSURE MOVES LITTLE CENTERED ALONG THE MID ATLANTIC COAST. AT THE SAME TIME, FOR TONIGHT THROUGH THURSDAY NIGHT A MID LEVEL TROUGH WILL BE INTENSIFYING FROM THE SOUTHEAST STATES AND ACROSS NORTH FLORIDA INTO THE EASTERN GULF OF MEXICO AS A MID LEVEL RIDGE AMPLIFIES OVER THE SOUTHERN PLAINS STATES IN RESPONSE TO A STRONG TROUGH MOVING INTO THE PACIFIC NORTHWEST.
THREE SEPARATE UPPER LEVEL SHORT WAVE TROUGHS WILL MOVE THROUGH THE AREA BY LATE THU.
THE AXIS OF THIS TROUGH IS NOT EXPECTED TO MOVE MUCH OVER THIS PERIOD. TRANSITIONING TO COOLER MORE SEASONAL CONDITIONS. A COLD FRONTAL BOUNDARY ASSOCIATED WITH AN UPPER TROUGH LIFTING THROUGH THE NORTHERN PLAINS WILL ADVANCE SOUTHEAST ACROSS OUR CWA DURING THE DAYTIME HOURS ON THRURSDAY. COOLER AIR ADVECTS SOUTH BEHIND THE FRONT THURS/THURS NIGHT WITH TEMPERATURES TRENDING COOLER WITH TIME.
231 AM EDT WED SEP 16 2015 LIGHT SOUTHERLY FLOW IN THE OHIO VALLEY WILL PERSIST AS HIGH PRESSURE REMAINS EAST OF THE AREA.
232 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL KEEP CONDITIONS ON THE DRY SIDE THROUGH THE REMAINDER OF THE WEEK. TEMPERATURES WILL TREND SLIGHTLY MILDER AS WARMER AIR WORKS ITS WAY NORTH ON THE WESTERN SIDE OF THE HIGH.
DRY WEATHER CAN BE EXPECTED TODAY ACROSS THE CENTRAL CALIFORNIA INTERIOR WITH COOLER THAN NORMAL AFTERNOON TEMPERATURES.
AS A COLD FRONT OUT WEST MOVES ACROSS THE REGION THROUGH THE NIGHT. AN AREA OF LOW PRESSURE AND ASSOCIATED COLD FRONT WILL SLIDE ACROSS THE REGION TONIGHT. MODELS GENERALLY SUGGEST THE COLD FRONT WILL LIFT NORTHWARD AS A WARM FRONT WEDNESDAY AFTERNOON. ANOTHER LOW PRESSURE SYSTEM AND COLD FRONT WILL CROSS THE REGION WEDNESDAY NIGHT. COOLER AND DRIER CONDITIONS WILL FILTER BACK INTO THE REGION ON THURSDAY AND THROUGH MOST OF THURSDAY NIGHT. MAIN FOCUS IS ON FRIDAYS UPPER TROF AND SHARED ENERGY AREA/Q VECTOR BULLSEYE. WITH COOL TEMPERATURES UNDER THE UPPER TROF.
401 AM EDT WED SEP 16 2015 7Z WV LOOP DEPICTS DEEP SHRTWV TROUGH OVER SOUTHERN ALABAMA. SHRTWV TROUGH ONLY SLOWLY PUSHING EASTWARD.
117 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL KEEP CONDITIONS ON THE DRY SIDE THROUGH THE REMAINDER OF THE WEEK. TEMPERATURES WILL TREND SLIGHTLY MILDER AS WARMER AIR WORKS ITS WAY NORTH ON THE WESTERN SIDE OF THE HIGH.
355 AM CDT WED SEP 16 2015 AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BUILD EAST FROM THE SOUTHERN PLAINS THROUGH THE END OF THIS WEEK.
THE UPPER LEVEL TROUGH OVER THE FOLLOWED BY A DRIER AND WARMER WESTERLY FLOW THROUGH THE END OF THE WEEK.
621 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THE END OF THE WEEK.
312 AM CDT WED SEP 16 2015 A BIT WARMER TONIGHT WITH DEWPOINTS CREEPING UPWARDS AND LIGHT EASTERLY WINDS. CANNOT COMPLETELY RULE OUT A SHOWER/STORM IN THE FAR SOUTHEAST TODAY OR TOMORROW AS WEAK UPPER TROUGH/LOW PULLS AWAY TO THE NORTHEAST. UPPER RIDGING WILL NOSE IN FROM THE WEST AND OUR WEATHER WILL REMAIN DRY WITH TEMPERATURES WARMING.
249 AM CDT WED SEP 16 2015 A TIGHT PRESSURE GRADIENT WILL PERSIST ACROSS THE GREAT PLAINS AGAIN TODAY AS A LEE TROUGH REMAINS ANCHORED OVER THE CENTRAL HIGH PLAINS AND HIGH PRESSURE REMAINS SITUATED ACROSS OHIO VALLEY AREA.
409 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL PROVIDE DRY AND WARM WEATHER FOR THE REST OF THE WEEK. ANOTHER SUNNY DAY UNDERNEATH THE SPRAWLING EASTERN RIDGE. HIGH TEMPS SHOULD BE A DEGREE OR TWO WARMER THAN YESTERDAY. RIDGING WILL CONTINUE ACROSS THE MID ATLANTIC AND NORTHEAST CONUS THROUGH THE PERIOD. DRY AND WARM CONDITIONS ARE EXPECTED INTO THE BEGINNING OF THE WEEKEND WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN OVER THE WEEKEND AS THE RIDGE MOVES EAST.
HIGHS TODAY AND THURSDAY WILL REACH THE LOWER 80S. AMPLIFIED WEST COAST UPPER TROUGH / EASTERN NORTH AMERICA RIDGE REGIME WILL REMAIN UNCHANGED INTO TONIGHT-WEDNESDAY. WITH WEAK LOW PRESSURE INTO THE NORTHERN HIGH PLAINS. RIDGE CONTINUES TO BUILD AHEAD OF A COLD FRONT/TROF.
THE WESTERN TROUGH WILL BE RE-ENFORCED BY ADDITIONAL HIGH LATITUDE ENERGY DROPPING INTO THE UPSTREAM SIDE WEDNESDAY AND WEDNESDAY NIGHT. THE ENERGY EJECTING OUT OF THE DOWNSTREAM SIDE OF THE TROUGH SPREADS THE STRONGEST LIFT TO OUR NORTH THROUGH THE NEXT 48 HOURS. CONFIDENCE NOT AS HIGH IN THE LOWER VALLEYS BUT CAN NOT BE RULED OUT. A WEAK COLD FRONT WILL BE DRIVEN INTO NORTHWEST COLORADO TOMORROW EVENING AND THIS IS WHERE THE BETTER FOCUS FOR SHOWERS WILL PERSIST INTO THE EARLY MORNING HOURS. ON THURSDAY THE WESTERN TROUGH WILL START TO BE EXTRACTED FROM THE WEST. A STRONG WAVE AND THE UPPER JET WILL BE ROUNDING THE BASE OF THE TROUGH OVER NORTHERN NEVADA BY LATE AFTERNOON.
OUR WEATHER WILL BE MOST ACTIVE TODAY AS A COLD FRONT OFFSHORE AND ITS ASSOCIATED COLD UPPER LEVEL TROUGH TRACK INLAND.
326 AM CDT WED SEP 16 2015 The overall pressure pattern across central Illinois looks to favor dry and mostly sunny conditions today as the area remains between high pressure east of IL and elongated low pressure in the Plains. Weak warm air advection ahead of the low is generating some lift as far east of western IL, which is evident in some weak radar returns just northwest of Knox and Stark counties.
235 AM EDT WED SEP 16 2015 A STRONG RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL REMAIN OVER THE NORTH COUNTRY THROUGH THE REMAINDER OF THIS WEEK.
349 AM CDT WED SEP 16 2015 AN UPPER LEVEL HIGH WILL BEGIN TO BUILD INTO THE REGION FROM THE SOUTHWEST TODAY WHICH WILL RESULT IN INCREASING SUBSIDENCE AND A DRYING OF THE DEEP LAYER MOISTURE.
128 AM EDT WED SEP 16 2015 HIGH PRESSURE LASTS THROUGH THE WEEK BRINGING WITH IT A PROLONGED PERIOD OF WARM AND DRY WEATHER.
A BAND OF PRECIPITATION FORMING ALONG A COLD FRONT EXTENDING INTO CENTRAL NEVADA WILL CONTINUE. STRONG WINDS ARE EXPECTED ALONG AND BEHIND THE COLD FRONT THIS MORNING. BUT ANTICIPATING A LIGHTER INTENSITY AS THE INFLUENCE OF THE COLD FRONT WEAKENS. WE SHOULD SEE A BRIEF REPRIEVE FROM THE WET WEATHER THIS EVENING WHILE THE NEXT UPPER TROUGH SHIFTS FROM THE OR/CA COAST TO SOUTHWEST IDAHO TOMORROW MORNING. THIS WILL TRIGGER MORE SHOWERS ACROSS THE REGION WHILE THE TROUGH GETS SOME REINFORCEMENT TOMORROW AFTERNOON.
A short wave trough is evident in water vapor imagery near the FL/AL line this morning. An inverted trough is present over the eastern Gulf of Mexico. The presence of this trough and the approaching short wave will increase lift over the region and tap into the increasing moisture to produced scattered showers and isolated thunderstorms across the region today.
157 AM EDT WED SEP 16 2015 DRY HIGH PRESSURE WILL KEEP OUR WEATHER QUIET AND WARM THE NEXT SEVERAL DAYS.
316 AM EDT WED SEP 16 2015 HIGH PRESSURE LASTS THROUGH THE WEEK BRINGING WITH IT A PROLONGED PERIOD OF WARM AND DRY WEATHER.
Cooler temperatures will continue, then gradual warming begins Thursday and continues into the weekend. The higher peaks of the southern Cascade Range and far northern Sierra may see a little snow by this evening. Locally gusty winds may continue to impact ongoing wildfires, but cooler temperatures, higher humidity and precipitation will be beneficial for containment efforts. The system moves out of the area early Thursday with dry and warmer weather returning for the remainder of the week. Temperatures will quickly return to above normal by the weekend as subsidence associated with building high pressure and northerly flow return to the region.
WEAK TROUGH ALONG THE COAST. UPPER LEVEL LOW OVER SOUTHERN ALABAMA MOVING SLOWLY NORTHEAST. TEMPERATURES SIMILAR TO YESTERDAY ALTHOUGH POSSIBLY COOLER IN THE CSRA/SOUTH MIDLANDS WHERE CLOUDINESS MAY BE MORE EXTENSIVE AT TIMES. TEMPERATURES IN THE LOW TO MID 80S. UPPER LEVEL LOW OVER THE AREA.
1248 AM CDT WED SEP 16 2015 HIGH PRESSURE HAS MOVED EAST OF ARKANSAS AND SOUTHEAST WINDS ARE NOW OVER THE STATE.
257 AM CDT WED SEP 16 2015 252 AM CDT STRONG RIDGING WILL REMAIN ANCHORED OVER THE MID ATLANTIC COAST TODAY AND TOMORROW WHILE LOW PRESSURE LIFTS NORTHEAST ACROSS THE CANADIAN PRAIRIES. AFTERNOON GUSTS INTO THE HIGH TEENS TO LOW 20 KT RANGE ARE EXPECTED. PERHAPS A DEGREE WARMER. THEN THURSDAY WILL SEE ANOTHER DEGREE OR TWO ADDED AS THE THERMAL RIDGE INCHES CLOSER. LOW PRESSURE WILL LIFT ACROSS ONTARIO TO OVER HUDSON BAY WITH A TRAILING COLD FRONT STRETCHING INTO NORTHERN ILLINOIS WHICH WILL SERVE AS THE FOCUS FOR SHOWERS AND THUNDERSTORMS.
503 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL STAY PARKED OVER THE MID ATLANTIC STATES INTO THE UPCOMING WEEKEND.
Showers continue to spread north Thursday morning as the larger scale trough moves east. Northwest Montana has been dry with the last two rounds of showers, but Thursday's trough passage could bring some rain to place such as Noxon, Libby, and Eureka, all of whom haven't seen much rain so far.
110 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL REMAIN ANCHORED ACROSS THE NORTHEAST AND MID-ATLANTIC STATES FOR THE REMAINDER OF THE WORK WEEK. THE HIGH WILL SLOWLY DRIFT OFF THE EAST COAST LATE IN BRINGING THE NEXT CHANCE FOR UNSETTLED WEATHER. WARMER AIR ALOFT AND A WEAK SOUTHERLY FLOW WILL KEEP TEMPERATURES A BIT WARMER THAN LAST NIGHT. EXCEPT ACROSS THE INTERIOR VALLEYS WHERE IT WILL COOL INTO THE LOWER 50S TO AROUND 50. A BROAD H5 RIDGE OVER THE EASTERN THIRD OF THE NATION WILL REMAIN IN PLACE THROUGH THIS PERIOD. SPRAWLING HIGH PRESSURE ANCHORED OFF THE EAST COAST WILL EXTEND BACK ACROSS THE LOWER GREAT LAKES. AS A DEAMPLIFICATION IN THE PATTERN OVER WILL LEAD TO A VERY BROAD BASED LONG WAVE TROUGH OVER THE BULK OF NORTH AMERICA.
403 AM EDT WED SEP 16 2015 A LARGE AREA OF HIGH PRESSURE ALONG THE EAST COAST WILL WEAKEN AND MOVE EAST THIS WEEKEND.
AS THE UPPER LVL RIDGE CURRENTLY CENTERED OVER NORTHER MEXICO/WEST TEXAS BUILDS FURTHER EAST OVER THE STATE. ABOVE NORMAL TEMPERATURES RETURN TOMORROW WITH RIDGING BUILD IN AND LESS CLOUD COVER.
COOLER TEMPERATURES AND RAINFALL REMAINS ON TRACK TO IMPACT THE SAN FRANCISCO BAY AREA ON WEDNESDAY.
354 AM CDT WED SEP 16 2015 Today will be much like yesterday as we remain under the influence of an upper ridge, anchored just SE of the CWA. Through the end of the week, the upper ridge will slowly shift south as an upper disturbance swings east through the northern states.
516 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL STAY PARKED OVER THE MID ATLANTIC STATES INTO THE UPCOMING WEEKEND.
413 AM CDT WED SEP 16 2015 252 AM CDT STRONG RIDGING WILL REMAIN ANCHORED OVER THE MID ATLANTIC COAST TODAY AND TOMORROW WHILE LOW PRESSURE LIFTS NORTHEAST ACROSS THE CANADIAN PRAIRIES. AFTERNOON GUSTS INTO THE HIGH TEENS TO LOW 20 KT RANGE ARE EXPECTED. PERHAPS A DEGREE WARMER. THEN THURSDAY WILL SEE ANOTHER DEGREE OR TWO ADDED AS THE THERMAL RIDGE INCHES CLOSER. LOW PRESSURE WILL LIFT ACROSS ONTARIO TO OVER HUDSON BAY WITH A TRAILING COLD FRONT STRETCHING INTO NORTHERN ILLINOIS WHICH WILL SERVE AS THE FOCUS FOR SHOWERS AND THUNDERSTORMS.
AT THE SURFACE A RIDGE IS OVER THE MID ATLANTIC COAST WITH A SE FLOW OVER THE LOCAL AREA OFF THE GULF. THE MORE STABLE AIR MASS BEHIND THE UPPER LOW WILL LINGER OVER THE REGION FOR THE NEXT FEW DAYS, HOWEVER A FEW ISOLATED THUNDERSTORMS MAY STILL OCCUR TODAY, BUT MAINLY ALONG THE SEA BREEZE. THURSDAY AND FRI AN UPPER RIDGE WILL NUDGE IN FROM NORTH MEXICO AS THE UPPER LOW MOVES EAST DECREASING RAIN CHANCES FARTHER FROM THE MINIMAL CHANCE TODAY. DURING THE WEEKEND AN AREA OF LOW PRESSURE IS EXPECTED TO MOVE FROM THE PLAINS TO THE GREAT LAKES AS A SHORT WAVE MOVES ACROSS THE CENTRAL SECTIONS OF THE COUNTRY.
111 AM EDT WED SEP 16 2015 LARGE HIGH PRESSURE CENTERED TO THE EAST AND SOUTHEAST OF THE AREA WILL MAINTAIN SOUTHERLY FLOW OF DRY LOW LEVEL AIR INTO THE REGION THROUGH THIS FORECAST PERIOD. THROUGH TONIGHT SOUTHEAST MI WILL REMAIN UNDER THE INFLUENCE OF RIDGING BOTH ALOFT AND AT THE SFC THROUGH THE OVERNIGHT. WITH THE UPPER LEVEL TROUGH JUST UPSTREAM AND THE RIDGE AXIS SLIDING EAST OF THE AREA. THIS WILL FAVOR LOW TEMPS A FEW DEGREES ABOVE GUIDANCE IN THE MID/UPPER 50S WITH A FEW COOL SPOTS DIPPING INTO THE LOW 50S.
HIGH PRESSURE ALOFT WILL BUILD THE NEXT FEW DAYS BRINGING A FAIR AND WARMING TREND.
TOWARD MORNING SOUTH AND SOUTHEAST WINDS WILL INCREASE OVER THE HIGHER TERRAIN AND RAIN WILL BEGIN ALONG THE COAST.
121 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL PROVIDE DRY AND WARM WEATHER FOR THE REST OF THE WEEK. ANOTHER SUNNY DAY TODAY UNDERNEATH THE SPRAWLING EASTERN RIDGE. HIGH TEMPS SHOULD BE A DEGREE OR TWO WARMER THAN YESTERDAY. RIDGING WILL CONTINUE ACROSS THE MID ATLANTIC AND NORTHEAST CONUS THROUGH THE PERIOD. DRY AND WARM CONDITIONS ARE EXPECTED INTO THE BEGINNING OF THE WEEKEND WITH UPPER LEVEL RIDGE ACROSS THE EASTERN CONUS. THE UPPER FLOW IS PROGGED TO FLATTEN OVER THE WEEKEND AS THE RIDGE MOVES EAST.
649 AM EDT WED SEP 16 2015 DRY HIGH PRESSURE WILL KEEP OUR WEATHER QUIET AND WARM THE NEXT SEVERAL DAYS.
A TROUGH OF LOW PRESSURE WILL MOVE ACROSS THE AREA TODAY BRINGING GUSTY WINDS TO MOST AREAS AND THE POTENTIAL FOR SHOWERS AND THUNDERSTORMS TO THE SOUTHERN GREAT BASIN AS WELL AS NORTHERN AND EASTERN PARTS OF MOHAVE COUNTY.
625 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS IN CONTROL WITH LIGHT WINDS. WEAK COLD FRONT CROSSES OVER THE WEEKEND.
345 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS IN CONTROL WITH LIGHT WINDS. WEAK COLD FRONT CROSSES OVER THE WEEKEND.
350 AM CDT WED SEP 16 2015 With high pressure anchored to our east across the Appalachians, dry weather will persist through much of the near term. In the mid and upper levels of the atmosphere, a ridge will dominate the southeastern half of the nation.
159 AM EDT WED SEP 16 2015 COOL AND DRY HIGH PRESSURE BUILDING INTO THE REGION WILL SETTLE OVER THE MID-ATLANTIC BY MIDWEEK. TEMPS WILL BE SEASONAL WITH HIGHS IN THE LOW TO MID 80S AND OVERNIGHT LOWS IN THE UPPER 50S TO LOWER 60S. HIGH PRESSURE WILL REMAIN THE DOMINATE FEATURE THROUGH THE WEEKEND.
306 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL BUILD INTO THE NORTHEAST THROUGH MUCH OF THE WORK WEEK.
205 AM EDT WED SEP 16 2015 DRY HIGH PRESSURE WILL KEEP OUR WEATHER QUIET AND WARM THE NEXT SEVERAL DAYS.
331 AM CDT WED SEP 16 2015 LATEST WATER VAPOR IMAGERY AND UPPER LEVEL ANALYSIS SHOWS A MID/UPPER LEVEL TROUGH MOVING ONTO THE WESTERN COAST WITH A RIDGE OVER TEXAS. WHILE DEEPLY AMPLIFIED RIDGE REMAINED ANCHORED OVER THE EASTERN HALF OF THE CONUS. A WEAK UPPER LOW WAS SITUATED OVER CENTRAL ALABAMA. THE HIGH CLOUDS SEEMS TO BE KEEPING THINGS SOMEWHAT MILD ACROSS THE TN VALLEY. THE UPPER LOW OVER THE AREA WILL SHIFT NORTHEAST TODAY. AND BECOME ABSORBED IN THE UPPER RIDGE BY THURSDAY. THE TN VALLEY WILL REMAIN UNDER THE INFLUENCE OF THE HIGH PRESSURE CENTERED ALONG THE APPALACHIAN MOUNTAINS. A WEAK AREA OF LOW PRESSURE OVER THE EASTERN GULF OF MEXICO WILL SLOWLY MOVE NORTHWEST. WITH DEWPOINTS RISING INTO THE LOW TO MID 60S DURING THE NEXT FEW DAYS.
402 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THE END OF THE WEEK.
652 AM EDT WED SEP 16 2015 HIGH PRESSURE LASTS THROUGH THE WEEK BRINGING WITH IT A PROLONGED PERIOD OF WARM AND DRY WEATHER.
246 AM MDT WED SEP 16 2015 BROAD SOUTHWESTERLY FLOW ALOFT WILL CONTINUE THROUGH THURSDAY AHEAD OF A TROUGH DIGGING INTO THE NORTHERN ROCKIES. THAT SYSTEM WILL PUSH A COLD FRONT THROUGH THE AREA EARLY IN THE DAY ON THURSDAY AS IT EMERGES ONTO THE NORTHERN PLAINS.
345 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL REMAIN ANCHORED ACROSS THE NORTHEAST AND MID-ATLANTIC STATES FOR THE REMAINDER OF THE WORK WEEK. THE HIGH WILL SLOWLY DRIFT OFF THE EAST COAST LATE IN BRINGING THE NEXT CHANCE FOR UNSETTLED WEATHER. INLAND LOCATIONS IN THE ALLEGANY PLATEAU WILL SEE STRONG RADIATIONAL COOLING / WHERE WINDS DECOUPLE IN THE VALLEYS / RESULTING IN LOWS IN THE LOWER 50S AND A REPEAT OF SOME VALLEY FOG. DEEP LAYER RIDGE ACROSS THE NORTHEAST CONUS AND SOUTHEAST CANADA WILL REMAIN IN PLACE THROUGH THE PERIOD. AS A DEAMPLIFICATION IN THE PATTERN OVER WILL LEAD TO A VERY BROAD BASED LONG WAVE TROUGH OVER THE BULK OF NORTH AMERICA.
HIGH PRESSURE STILL IN CONTROL OF THE EASTERN TN VALLEY THIS MORNING. SKIES WERE MOSTLY CLEAR ACROSS MUCH OF THE REGION WITH SOME HIGH CLOUDINESS ACROSS EXTREME SOUTHERN SECTIONS AS WEAK UPPER LOW NEAR THE GULF CONTINUES TO BRING MOISTURE NORTH ACROSS FL. TEMPERATURES VARIED WIDELY FROM THE MID TO UPPER 40S IN THE COOLER SHELTERED VALLEYS TO AROUND 60 IN HIGHER LOCATIONS OF THE PLATEAU AND MID SLOPE AREA OF THE MOUNTAINS. FOLLOWED WARMER GUIDANCE NUMBERS FOR LOWS. PATCHY FOG AGAIN IN THE COOLER SHELTERED VALLEYS AND NEAR THE WARM WATERS OF THE RIVERS AND LAKES.
HIGH PRESSURE CONTINUES TO BE THE MAIN INFLUENCE ON THE WEATHER PATTERN FOR THE NEXT SEVERAL DAYS AS TEMPERATURES GRADUALLY WARM THROUGH THE WEEK. SUPERB RADIATIONAL CONDITIONS ARE ON TAP AGAIN TONIGHT WITH DRY HIGH PRESSURE OVERHEAD. DRY RIDGE CONTINUES TO EDGE DOWN THE SOUTH ATLANTIC COAST THROUGH THE PERIOD. GIVING US HIGHS PRETTY UNIFORMLY IN THE LOWER 80S ACROSS THE AREA. THU-FRI: CANADIAN HIGH PRESSURE OVER THE MID-ATLANTIC/CAROLINAS WILL CONTINUE TO MODIFY IN THIS PERIOD AS THE UPPER LEVEL RIDGE ALONG THE EASTERN SEABOARD WEAKENS IN RESPONSE TO FURTHER AMPLIFICATION OF A LONGWAVE TROUGH OVER THE WESTERN CONUS. EXPECT DRY CONDITIONS AND NEAR NORMAL NORMAL HIGH TEMPERATURES IN THE LOWER TO MID 80S. EXTENDING NORTHEAST FROM A LOW PRESSURE SYSTEM OFFSHORE THE FL GULF COAST.
121 AM EDT WED SEP 16 2015 ISOLD SHOWERS HAVE POPPED UP ACROSS FAR ERN UPR MICHIGAN AND FAR NRN LAKE HURON WITHIN THE PAST COUPLE OF HOURS IN RESPONSE TO A VERY WEAK/MOISTURE-STARVED WAVE RIDING NE UPSTREAM OF THE UPPER LEVEL RIDGE AXIS. NOT A WHOLE LOT GOING ON WEATHER WISE AS THE RIDGE OF HIGH PRESSURE CENTERED OFF TO OUR EAST REMAINS IN CONTROL.
TEMPERATURES ARE IN THE LOWER 80S ALONG THE KEYS ISLAND CHAIN.
126 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL DOMINATE THE WEATHER RIGHT INTO THE UPCOMING WEEKEND.
204 AM EDT WED SEP 16 2015 HIGH PRESSURE WILL DOMINATE THE WEATHER RIGHT INTO THE UPCOMING WEEKEND.
DRY CONDITIONS WILL CONTINUE INTO THURSDAY AS AN UPPER LEVEL RIDGE LOCATED ACROSS TEXAS EXPANDS EASTWARD. HEIGHTS WILL CONTINUE TO INCREASE ACROSS THE REGION AND WILL RESULT IN HIGHS BACK INTO THE LOWER 90S. /28/ THE SUBTROPICAL RIDGE WILL CONTINUE OVER THE ARKLAMISS RESULTING IN MORE RAIN-FREE AND INCREASINGLY HOT WEATHER AS WE GO THROUGH THE WEEKEND. MODELS HAVE BEEN CONSISTENT WITH THE DEPICTION OF AN INTENSIFYING LOW LEVEL THERMAL RIDGE OVER THE LOWER MS VALLEY WITH H850 TEMPS APPROACHING 20 DEG C.
322 AM EDT WED SEP 16 2015 HIGH PRESSURE LASTS THROUGH THE WEEK BRINGING WITH IT A PROLONGED PERIOD OF WARM AND DRY WEATHER.
207 AM EDT WED SEP 16 2015 HIGH PRESSURE REMAINS OVER THE AREA THROUGH THE END OF THE WEEK.
WAVES OF LOCALLY HEAVY RAINFALL WILL CONTINUE TO IMPACT THE LOCAL AREA AS A MOIST LOW LEVEL EASTERLY FLOW ALONG THE COAST IS OVERRIDDEN BY STRONG UPPER LEVEL DIVERGENCE DOWNSTREAM OF A TROUGH DIGGING ACROSS AL/FL PANHANDLE GUST COAST. HIGH TEMPS WILL TREND NEAR TO BELOW CLIMO IN THE LOWER 80S WITH MINS TONIGHT FALLING TO NEAR 70 INLAND MID 70S COAST. OVERNIGHT RAINFALL POTENTIAL FADES INLAND AND ONCE AGAIN RESURRECTING OVER THE COASTAL WATERS THROUGH SUNRISE AS ANOTHER COASTAL TROUGH DEVELOPS OFFSHORE.
1225 PM EDT WED SEP 9 2015 SHOWERS AND SOME THUNDERSTORMS ARE LIKELY TODAY AND THURSDAY WITH THE APPROACH AND SLOW PASSAGE OF A COLD FRONT.
OTHERWISE, HIGH PRESSURE WILL CONTINUE TO BUILD ALOFT.
BUT OVERALL WILL KEEP THE HIGH POPS FOR TODAY. CHATTANOOGA AIRPORT, TN 84 70 82 68 / 80 60 70 50 KNOXVILLE MCGHEE TYSON AIRPORT, TN 84 68 80 65 / 80 60 70 40 OAK RIDGE, TN 83 69 79 66 / 80 60 70 40 TRI CITIES AIRPORT, TN 85 67 79 62 / 80 70 70 50.
807 AM EDT WED SEP 9 2015 A WARM FRONT WILL LIFT NORTH OF THE REGION TODAY WHILE LOW PRESSURE TRACKS THROUGH QUEBEC.
OFFSHORE HIGH PRESSURE AND A THERMAL TROUGH ALONG THE OREGON COAST WILL PRODUCE GUSTY NORTH WINDS AND STEEP WIND DRIVEN SEAS THROUGH AT LEAST THURSDAY.
716 AM EDT WED SEP 9 2015 A COLD FRONT WILL MOVE ACROSS THE AREA DURING THE DAY TODAY. THE FRONT WILL REACH THE OHIO RIVER BY THIS EVENING AND THEN STALL AS WEAK HIGH PRESSURE BUILDS BRIEFLY OVER NORTHERN OHIO AND THE LOWER GREAT LAKES.