Aikyam-Lab/Synoptic-Bench huggingface dataset:
A WEAK TROUGH AND THE ALSO WEAK FRONTOGENESIS ALONG IT HAS SERVED TO GENERATE SOME WEAK SHOWERS OVER NORTHERN MINNESOTA TODAY. BUT THE LOW LAYERS ARE VERY DRY AND THE RADAR ECHOES ARE OFTEN WEAK AND PRODUCE LITTLE MORE THAN SOME LIGHT RAIN SHOWERS OR SPRINKLES FOR MOST LOCATIONS. MORE SUNSHINE AND WARMER TEMPERATURE ALOFT WILL ALLOW HIGHS TO RISE INTO THE UPPER 70S AND LOWER 80S. THE RIDGE AXIS BEGINS TO SHIFT TO THE EAST LATE FRIDAY AS THE NEXT LOW PRESSURE SYSTEM BEGINS TO MOVE IN ACROSS THE PLAINS. A SURFACE WARM FRONT WILL LIFT TO THE NORTH ACROSS MINNESOTA AND THE WRN GREAT LAKES AREA SAT MORNING.
535 AM CDT THU JUL 9 2015 WATER VAPOR IMAGERY/RAP ANALYSIS SHOWING A MID-LEVEL TROUGH EXITING EAST OF THE AREA. RIDGE OF HIGH PRESSURE WILL BE THE MAIN STORY WITH SLIGHTLY COOLER THAN NORMAL TEMPERATURES AND MOSTLY SUNNY CONDITIONS. THE RIDGE HOLDS IN PLACE OVER THE REGION THROUGH TONIGHT PRODUCING MOSTLY CLEAR SKIES AND NEAR CALM WINDS. PLAN ON LOWS TONIGHT IN THE LOWER 50S ACROSS CENTRAL WI.
WINDS WILL PICK UP AN INCREASINGLY EAST OR SOUTHEASTERLY DIRECTION AS THE DAY WEARS ON AS HIGH PRESSURE BEGINS TO SHIFT EAST OF THE MISSISSIPPI.
620 AM CDT FRI MAR 25 2016 HIGH PRESSURE IN PLACE ACROSS THE STATE CURRENTLY. WITH THE LARGE AREA OF HIGH PRESSURE TO SHIFT EAST THROUGH THE DAY. SOUTHERLY TO PICK UP AHEAD OF AN APPROACHING LOW PRESSURE SYSTEM SITUATED ACROSS THE DAKOTAS. H85 TEMPS WARM TO THE SINGLE DIGITS ABOVE FREEZING. NORTHERN CWA WITH SNOW COVER WILL REMAIN COOLER LIKELY ONLY TOPPING OUT IN THE UPPER 30S TO AROUND 40. 00 RUNS OF THE NAM/EC/GFS HAVE ALL SLOWED THE PROGRESSION OF THE SYSTEM AND ATTENDANT COLD FRONT THROUGH THE REGION ON SATURDAY.
/ISSUED 403 AM CDT FRI MAR 25 2016/ SATELLITE IMAGERY OVERLAID OVER GFS40 MODEL CONFIRMED UPPER LEVEL RIDGING OVER THE ATLANTIC AND PACIFIC OCEANS WITH BROAD TROUGHING ACROSS THE UNITED STATES. A COLD FRONT CONTINUED TO MARCH TO THE EXTREME EASTERN UNITED STATES WHERE ACTIVE WEATHER COULD BE FOUND. A BEAUTIFUL DAY IS IN STORE FOR THE AREA AS SKIES WILL REMAIN MOSTLY CLEAR WITH SLIGHTLY COOLER THAN NORMAL HIGHS EXPECTED.
629 AM CDT FRI MAR 25 2016 AT H5 RIDGE OFF THE PACIFIC COAST INTO THE GULF OF ALASKA WITH WAVE DROPPING THROUGH NORTHWEST FLOW IN NORTHERN ROCKIES AND ANOTHER IN THE GREAT LAKES REGION. COOLER WEST OVER THE NEBRASKA PANHANDLE AND WARMER TO THE SOUTH AND EAST BUT TEMPERED BY SNOW FIELD FROM KIML TO SUTHERLAND AND FROM STAPLETON TO ONEILL.
A DRY AND WARMER WEEKEND CAN BE ANTICIPATED. OR A COUPLE DEGREES BELOW FREEZING ACROSS THE REGION. HIGH PRESSURE UNDER STILL DRY SOUTHWEST FLOW AFOFT WILL SUPPORT A DRY AND WARMER SATURDAY.
/ISSUED 345 AM CDT FRI MAR 25 2016/ NEAR ZONAL FLOW ALOFT THIS MORNING WILL BECOME SOUTHWEST BY THIS AFTERNOON WITH A BROAD LONGWAVE TROUGH BECOMING ESTABLISHED ACROSS INTERMOUNTAIN WEST.
YESTERDAY'S FRONTAL PASSAGE HAS BROUGHT US COOLER TEMPERATURES THIS MORNING.
WIND SPEEDS WILL DECLINE A FEW HOURS AFTER SUNSET BUT WILL VEER TO THE NORTHWEST OVERNIGHT DUE TO A COLD FRONTAL PASSAGE. THE SFC LEE TROUGH WILL DEEPEN AND PROGGED SOUNDINGS EXHIBITING ABL MIXING UP TO AOA 600 MB WILL BE TAPPING INTO 700 MB WIND SPEEDS OF 20-30 KTS. AND TO ALL BUT PERHAPS THE LOW ROLLING PLAINS BY THE END OF THE SHORT TERM PERIOD.
VFR THROUGH THIS EVENING WITH WINDS BECOMING MORE E-SE THIS AFTERNOON AS HIGH PRESSURE MOVES EAST. TODAY SHOULD WARM NICELY INTO THE LOW 70S ALONG THE COAST. TEMPERATURES TONIGHT WILL RANGE FROM THE LOW 60S ALONG THE COAST AND RIO GRANDE. TO THE LOW TO MID 50S INLAND.
HIGH PRESSURE WILL STRENGTHEN OVER THE REGION TODAY AND TEMPS WILL TAKE A DIP AS WINDS BECOME NORTHERLY.
UPPER LEVEL TROUGH WILL COME IN FROM THE NORTH THIS AFTERNOON MAINTAINING THE SHOWERS AND HOLDING TEMPS BELOW NORMAL IN ALL AREAS. BELOW FREEZING.
712 AM EDT FRI MAR 25 2016 LOW PRESSURE AND ITS COLD FRONT WILL FINISH CROSSING THE AREA THIS MORNING.
An abundance of rain and embedded thunderstorms continues to stream into the area from the southwest, just ahead of a surface cold front.
1005 AM EDT FRI MAR 25 2016 HIGH PRESSURE BUILDING INTO THE REGION TODAY WILL BRING A COOLER AIRMASS. WARMER TEMPERATURES WILL RETURN FOR THE WEEKEND AS A SOUTHERLY FLOW DEVELOPS. DEWPOINTS UPSTREAM (OVER THE LOWER PENINSULA OF MICHIGAN) ARE IN THE LOWER 20S. HIGH PRESSURE WILL BUILD IN FROM THE WEST TODAY. WE WILL START TO GET INTO SOME RETURN FLOW THROUGH THE DAY ON SATURDAY AS THE HIGH PUSHES OFF TO THE EAST.
920 AM CDT FRI MAR 25 2016 AT H5 RIDGE OFF THE PACIFIC COAST INTO THE GULF OF ALASKA WITH WAVE DROPPING THROUGH NORTHWEST FLOW IN NORTHERN ROCKIES AND ANOTHER IN THE GREAT LAKES REGION. COOLER WEST OVER THE NEBRASKA PANHANDLE AND WARMER TO THE SOUTH AND EAST BUT TEMPERED BY SNOW FIELD FROM KIML TO SUTHERLAND AND FROM STAPLETON TO ONEILL.
AN UPPER RIDGE WILL GIVE A BREAK IN THE WEATHER TONIGHT.
1011 AM EDT FRI MAR 25 2016 LOW LEVEL MOISTURE LINGERS IN THE WAKE OF A COLD FRONT TODAY. A HIGH PRESSURE SYSTEM ARRIVES FOR THE WEEKEND.
1122 AM EDT FRI MAR 25 2016 RAIN CONTINUES ACROSS THE NORTH COUNTRY THIS MORNING WITH POCKETS OF FREEZING RAIN CHANGING TO RAIN IN WARMING TEMPERATURES BEFORE TAPERING OFF THIS AFTERNOON. HIGH PRESSURE BUILDS IN FOR THE WEEKEND AND BRINGS SUNSHINE AND DRIER CONDITIONS.
LOWERED TEMPS ACROSS SOUTHEAST GEORGIA TO THE LOW/MID 70S TODAY DUE TO THE EXPECTED CONVECTION MOVING INTO THE REGION IN ADDITION TO THE SIGNIFICANT CLOUD COVER.
858 AM EDT FRI MAR 25 2016 A COLD FRONT WITH SOME RAIN SHOWERS IS CROSSING THE REGION AND WILL CLEAR THE AREA THIS AFTERNOON. THE WEEKEND WILL BE DRY AND MILD WITH HIGH PRESSURE.
425 AM PDT FRI MAR 25 2016 HIGH PRESSURE WILL CONTINUE TO PROVIDE DRY WEATHER AND ABOVE NORMAL TEMPERATURES THROUGH THE WEEKEND. UPPER RIDGE OVER THE EPAC CONTINUES TO PROVIDE DRY AND MILD CONDITIONS TO THE DISTRICT. BUT LOOK FOR MOSTLY SUNNY CONDITIONS TODAY WITH SLIGHTLY WARMER TEMPS THAN YESTERDAY. 70S WILL PREVAIL THROUGHOUT THE LOWER ELEVATIONS AND A FEW DESERT LOCATIONS COULD REACH 80. MOST AREAS WILL NUDGE SLIGHTLY WARMER AGAIN ON SATURDAY. THOUGH THE DESERT WILL ACTUALLY SEE A FEW DEGREES COOLING AS THE SURFACE FLOW TURNS NORTHEAST BRINGING IN COOLER AIR FROM THE GREAT BASIN.
AS HIGH PRESSURE DRIFTS EWD OVHD TODAY. /ISSUED 345 AM CDT FRI MAR 25 2016/ NEAR ZONAL FLOW ALOFT THIS MORNING WILL BECOME SOUTHWEST BY THIS AFTERNOON WITH A BROAD LONGWAVE TROUGH BECOMING ESTABLISHED ACROSS INTERMOUNTAIN WEST.
A SURFACE COLD FRONT IS ALIGNED FROM THE EASTERN OHIO VALLEY DOWN THROUGH THE GULF STATES. MUCH COOLER AIR IS ADVECTING IN ACROSS THE COMMONWEALTH. TEMPERATURES WILL LIKELY CONTINUE TO DROP DOWN INTO THE LOW TO MID 40S THROUGH THE MID-MORNING HOURS. SKIES WILL CLEAR OUT TONIGHT AS HIGH PRESSURE STRENGTHENS TO OUR NORTHEAST. WITH LOWS IN THE SHELTERED VALLEYS DOWN IN THE LOW 30S. WITH BROADER VALLEYS AND RIDGETOPS COOLING OFF TO THE 35 TO 40 DEGREE RANGE. CLEAR SKIES AND LIGHT WINDS SHOULD YIELD ANOTHER DECENT RIDGE/VALLEY SPLIT FOR SATURDAY NIGHT WITH VALLEYS FALLING TO AROUND 40.
A LOW PRESSURE TROF IS MOVING ACROSS CENTRAL AND SOUTHWEST MONTANA CAUSING WIDESPREAD AREAS OF LIGHT SNOW AND IFR/MVFR CONDITIONS. CONDITIONS WILL SLOWLY IMPROVE FROM THE NORTH DURING THE DAY AND HIGH PRESSURE WILL BUILD ALOFT DURING THE NIGHT.
1001 AM CDT FRI MAR 25 2016 COLD FRONT EXTENDS FROM TO WARROAD MN HALSTAD TO LITCHVILLE ND. THE COLD FRONT HAS REACHED GRAND FORKS OVER THE LAST HOUR. FREEZING RAIN STILL A CONCERN IN THE FAR NORTH. STRONG COLD FRONT HAS MOVED SOUTH INTO NORTHEAST NORTH DAKOTA THIS MORNING. HAVE SEEN RAIN CHANGE TO FREEZING RAIN BEFORE CHANGING TO SNOW ACROSS SOME PARTS OF THIS AREA. WILL MONITOR MODEL TRENDS/CURRENT CONDITIONS AS COLD FRONT PUSHES SOUTH AND ADJUST HIGHS AND SNOW CHANCES ACCORDINGLY.
DOWNSLOPE WINDS OFF THE PLATEAU HAS CLEARED THE LOW CLOUDS ACROSS CHA.
842 AM MDT FRI MAR 25 2016 UPPER TROUGH CONTINUING TO SLIDE SE AND IS IN THE PROCESS OF SPLITTING OVER THE NORTHERN PLAINS. TODAY THROUGH SATURDAY NIGHT WATER VAPOR SHOWS RATHER COMPLEX UPPER LOW OVER THE MT/WY REGION. TROF EXTENDS FROM THE SWRN ND THROUGH SERN WY WITH ARCTIC BOUNDARY OVER NERN MT. UPPER LOW WILL SHIFT EWD INTO WRN SD BY AFTN. BUT AS UPPER LOW BECOMES MORE CLOSED OFF OVER WRN SD IN THE AFTN AND ARCTIC BOUNDARY SLIDES IN FROM THE NORTH.
COLD FRONT JUST OFF TO OUR EAST. CHATTANOOGA AIRPORT, TN 66 42 72 52 / 0 0 10 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 63 40 71 50 / 10 0 10 10 OAK RIDGE, TN 63 38 72 51 / 0 0 10 10 TRI CITIES AIRPORT, TN 63 36 71 44 / 10 0 10 10.
656 AM CDT FRI MAR 25 2016 THE COLD FRONT HAS REACHED GRAND FORKS OVER THE LAST HOUR. FREEZING RAIN STILL A CONCERN IN THE FAR NORTH. STRONG COLD FRONT HAS MOVED SOUTH INTO NORTHEAST NORTH DAKOTA THIS MORNING. HAVE SEEN RAIN CHANGE TO FREEZING RAIN BEFORE CHANGING TO SNOW ACROSS SOME PARTS OF THIS AREA. WILL MONITOR MODEL TRENDS/CURRENT CONDITIONS AS COLD FRONT PUSHES SOUTH AND ADJUST HIGHS AND SNOW CHANCES ACCORDINGLY.
1254 PM EDT FRI MAR 25 2016 THE AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL STRENGTHEN OVER THE REGION TODAY AND TEMPS WILL TAKE A DIP AS WINDS BECOME NORTHERLY.
1040 AM EDT FRI MAR 25 2016 CURRENTLY - A LOWER TROPOSPHERIC RIDGE EXTENDS ACROSS THE BAHAMAS AND THROUGH THE FLORIDA STRAITS AND CUBA. LOWER LEVEL LIFT WITHIN A SWATH OF CONFLUENT FLOW BETWEEN THE RIDGE TO OUR SOUTH. AND A TROUGH OVER THE SOUTHEASTERN UNITED STATES. SUFFICIENT SUN WILL ENSURE DAY TIME HIGHS WILL BE ABOVE NORMAL IN THE LOW TO MID 80S.
741 AM EDT FRI MAR 25 2016 RAIN CONTINUES ACROSS THE NORTH COUNTRY THIS MORNING WITH POCKETS OF FREEZING RAIN CHANGING TO RAIN IN WARMING TEMPERATURES BEFORE TAPERING OFF THIS AFTERNOON. HIGH PRESSURE BUILDS IN FOR THE WEEKEND AND BRINGS SUNSHINE AND DRIER CONDITIONS.
/ISSUED 344 AM CDT FRI MAR 25 2016/ A return to southeast winds will bring warmer temperatures today.
1018 AM EDT FRI MAR 25 2016 AVIATION SECTION HAS BEEN UPDATED BELOW HIGH PRESSURE WILL STRENGTHEN OVER THE REGION TODAY AND TEMPS WILL TAKE A DIP AS WINDS BECOME NORTHERLY.
THE MORNING SOUNDING FROM XMR SHOWS STRONG WSW WINDS OF 40+ KTS ABV 10K FT WITH COOLER TEMPS NR -10.
1112 AM CDT FRI MAR 25 2016 High pressure ridge axis settled over the region this morning, clearing most of the clouds across Central Illinois. Ridge of high pressure currently located along the Mississippi River will slide eastward today, resulting in light winds and clearing skies. Abundant sunshine will prevail across the board by afternoon, with high temperatures mainly in the lower 50s.
423 AM PDT FRI MAR 25 2016 A RIDGE OF HIGH PRESSURE WILL HOLD FIRM ACROSS SOUTHERN CALIFORNIA THROUGH THE WEEKEND BEFORE THE REGION BECOMES UNDER THE INFLUENCE OF A TROUGH FORECAST TO DEVELOP AND MOVE SOUTHWARD ACROSS THE WESTERN U. TEMPS WILL STILL RUN SOME 5-10F DEGREES ABOVE AVERAGE UNDER THE INFLUENCE OF RIDGING. OFFSHORE WIND FLOW DEVELOPS AS HIGH PRESSURE BUILDS BRIEFLY ACROSS NEVADA-IDAHO.
719 AM EDT FRI MAR 25 2016 AVIATION HIGH PRESSURE WILL BUILD IN AND BRING FAIR WEATHER TODAY THROUGH SATURDAY.
EXPECT DRY AND WARMER CONDITIONS THROUGH FRIDAY. A LOW PRESSURE SYSTEM WILL CROSS NORTHERN ARIZONA CAUSING A DIP IN TEMPERATURES AND A SLIGHT CHANCE FOR SHOWERS NEAR THE FOUR CORNERS. HIGH PRESSURE REMAINS ON TRACK TO BRING MAINLY CLEAR SKIES AND ABOVE NORMAL TEMPERATURES TODAY. THIS SYSTEM WILL PUSH A COLD FRONT INTO NORTHERN ARIZONA BRINGING COOLER DAYTIME TEMPERATURES AND BREEZY NORTH TO NORTHWEST WINDS.
828 AM EDT FRI SEP 11 2015 A NARROW RIDGE OF HIGH PRESSURE WILL BUILD ACROSS THE REGION FOR TODAY. AN UNUSUALLY DEEP CUT-OFF LOW FOR THIS TIME OF YEAR WILL THEN DEVELOP OVER THE OHIO VALLEY EARLY SATURDAY AND SLOWLY LIFT NORTHEAST ACROSS PENNSYLVANIA BY LATE THIS WEEKEND. OTHERWISE HIGH PRESSURE WILL PROVIDE A GORGEOUS DAY WITH COMFORTABLE TEMPS AND HUMIDITY LEVELS. FCST HIGH TEMPS TODAY RANGE FROM THE LOWER 70S ACROSS THE NRN AND WRN MTNS. AND RIGHT IN THE WAKE OF A SLOW MOVING COLD FRONT AS UPPER LEVEL DIVERGENCE STRENGTHENS IN RESPONSE TO THE APPROACH OF A 100-110 KT UPPER JET FROM THE SW.
TODAY THROUGH SATURDAY NIGHT UPPER LEVEL ANALYSIS HAS SHARP TROF ACROSS THE MIDWEST WITH LARGE RIDGE OVER THE GREAT BASIN. FAST NORTHWEST FLOW RESIDES OVER THE GREAT PLAINS WITH JUST SOME THIN HIGH CLOUDS SPILLING OVER THE RIDGE. COOL HIGH PRESSURE HAS SETTLED INTO THE NORTHERN PLAINS WITH LIGHT WINDS AND TEMPERATURES AT 2AM IN THE MID 40S TO MID 50S. MIDWEST TROF SHIFTS SLIGHTLY EAST AS WESTERN RIDGE BUILDS. TEMPERATURES WILL BE SLIGHTLY WARMER.
HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY WITH ABOVE NORMAL HIGH TEMPERATURES. A SMALL UPPER LEVEL LOW PRESSURE SYSTEM OFF THE COAST OF NORTHERN CALIFORNIA WILL SPREAD A LITTLE CLOUDINESS INTO CENTRAL OREGON ALONG WITH SOME SMOKE ALOFT FROM FIRES IN CALIFORNIA. UPPER LEVEL HIGH PRESSURE WILL DOMINATE THE REGION WITH ONLY A FEW MID/HIGH CLOUDS DRIFTING ACROSS THE SKY.
903 AM EDT FRI SEP 11 2015 THE SATELLITE VIEW SHOWS A TROUGH STRETCHED FROM NEW ENGLAND TO NORTH FLORIDA. HIGH PRESSURE IS IN PLACE OVER SOUTH FLORIDA AND THE KEYS WITH A VERY SIMILAR ENVIRONMENT TO THE PAST WEEK WITH LOW LEVEL MOISTURE.
COLD FRONT AT 10 AM EXTENDED FROM MULESHOE-ABERNATHY-WHITE RIVER LAKE-GUTHRIE WELL BEHIND AN OUTFLOW BOUNDARY THAT WAS STILL MOTORING SOUTH ACROSS THE PERMIAN BASIN. A COLD FRONT CURRENTLY MOVING THROUGH THE REGION WILL SHIFT WINDS TO THE NORTH AND BECOME BREEZY.
An upper level trof axis moving southeast across the Plains this morning continued to push a cold front southeast through Eastern Oklahoma and Northwest Arkansas. the remaining showers and thunderstorms will continue to weaken and dissipate through the afternoon hours as the cold front progresses southeast through the region. Behind the cold front. while cooler and drier air begins to filter into the region behind the front.
1154 AM EDT FRI SEP 11 2015 A COLD FRONT WILL REMAIN STALLED ACROSS THE GULF OF MAINE TODAY WHILE LOW PRESSURE MOVES ALONG THE FRONT. THE LOW WILL EXIT ACROSS THE MARITIMES TONIGHT. HIGH PRESSURE WILL BUILD ACROSS THE REGION SATURDAY. A FRONT WILL REMAIN STALLED ACROSS THE GULF OF MAINE TODAY WHILE LOW PRESSURE TRACKS ALONG THE FRONT. THE LOW WILL EXIT ACROSS THE MARITIMES TONIGHT. EXPECT DECREASING CLOUDS TONIGHT WITH HIGH PRESSURE STARTING TO BUILD ACROSS THE FORECAST AREA LATE. HIGH TEMPERATURES TODAY WILL GENERALLY RANGE FROM THE LOWER TO MID 60S ACROSS THE FORECAST AREA. WEAK HIGH PRESSURE IS EXPECTED TO BUILD ACROSS THE STATE SATURDAY.
1000 AM EDT FRI SEP 11 2015 WEAK HIGH PRESSURE BUILDS IN LATER TODAY AS LOW PRESSURE DEPARTS TO THE NORTHEAST. LOW PRESSURE WILL IMPACT THE REGION THIS WEEKEND.
A STRONG UPPER LEVEL RIDGE WILL PRODUCE SUNNY AND WARM WEATHER TODAY AND SATURDAY.
/ISSUED 610 AM CDT FRI SEP 11 2015/ EXPECT MVFR CEILINGS TO DEVELOP THIS MORNING IN THE WAKE OF A COLD FRONT THAT WILL CONTINUE TO MAKE ITS WAY SOUTH ACROSS OKLAHOMA INTO NORTH TEXAS TODAY. /ISSUED 324 AM CDT FRI SEP 11 2015/ COLD FRONT APPROACHING I-40 WILL CONT TO MOVE SOUTH ACROSS THE AREA TODAY WITH A CHANCE FOR SOME SHOWERS AND THUNDERSTORMS NEAR THE BOUNDARY. DRIER AND COOLER AIR WILL FILTER SOUTH INTO THE AREA BEHIND THE FRONT FOR THE WEEKEND.
In the upper levels, a large, broad (but amplifying) trough covers the eastern three quarters of the country this morning. At the surface, a cold front extends from a low off the Northeast coast, through the Mid-Atlantic and across north GA/AL.
CHATTANOOGA AIRPORT, TN 86 65 76 55 / 10 50 20 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 84 65 73 53 / 10 50 40 20 OAK RIDGE, TN 84 64 73 54 / 20 60 40 20 TRI CITIES AIRPORT, TN 84 61 70 51 / 10 50 70 30.
BUT ANTICIPATE CAP WILL BE BROKEN INTO THE MID/LATE AFTN AS UPPER LEVEL FORCING AND DIVERGENCE ACROSS THE WESTERN FL PANHANDLE SHIFTS FARTHER EAST IN ADVANCE OF DIGGING UPPER LEVEL TROUGH PRESSING SWD UPSTREAM OF THE MS RIVER VALLEY. SMALL CRAFT EXERCISE CAUTION CONDITIONS COULD DEVELOP LATE TONIGHT INTO SATURDAY OVER THE OFFSHORE WATERS AS THE PRESSURE GRADIENT STRENGTHENS AHEAD OF THE APPROACHING COLD FRONT.
942 AM EDT FRI SEP 11 2015 A WEAK COLD FRONT WILL STALL AND DISSIPATE OVER EASTERN NORTH CAROLINA TODAY AND TONIGHT.
625 AM CDT FRI SEP 11 2015 HIGH PRESSURE IS NOW SOLIDLY SITUATED OVER NORTH DAKOTA AND CONTINUES TO SAG SOUTH THIS MORNING. AND AS THE HIGH SAGS SOUTH STILL EXPECT SIMILAR TEMPS ACROSS OUR NORTHERN CWA.
834 AM EDT FRI SEP 11 2015 RAIN CHANCES WILL INCREASE AGAIN LATER TODAY AS A COLD FRONT MOVES OUT OF THE MIDWEST. WHERE A WEAK TROUGH AXIS WAS OBJECTIVELY ANALYZED. RAIN CHANCES WILL INCREASE LATER THIS AFTERNOON AS A DEEPENING UPPER TROUGH PUSHES A FRONT OUT OF THE MIDWEST. DRY ADVECTION AND SUBSIDENCE WILL DECREASE MEASURABLE RAINFALL CHANCES LATER ON SATURDAY AS THE MID LEVEL TROUGH AXIS AND DRY SLOT PROGRESS EASTWARD. LOW CONVECTIVE THRESHOLDS UNDER THE ENCROACHING TROUGH AND FLOW OFF THE LAKES MAY SUPPORT SOME ISOLD TO SCT SHOWERS.
This system will force a Fall-like cold front through our area later today. The first push of cooler air early this morning is from convective outflow with the storms that formed along the front originally but have propagated away from it. the Fall-like weather will be short-lived as the upper trough shifts east and then lifts out.
DRIER AND WARMER CONDITIONS ARE FORECAST TODAY WITH A SLIGHT CHANCE OF AFTERNOON STORMS RETURNING SATURDAY FROM FLAGSTAFF SOUTHWARD.
THE FORECAST AREA REMAINS UNDER THE INFLUENCE OF A BROAD UPPER LEVEL TROUGH. A COLD FRONT WAS TRAILING SOUTHWESTWARD FROM THE LOW. WITH OBS REPORTING TEMPS IN THE LOW TO MID 70S. THE COLD FRONT WILL ENTER THE AREA AFTER THE 00Z TIME FRAME. A REINFORCING COLD FRONT IS XPCTED TO MOVE SEWD THROUGH THE AREA LATE THIS AFTERNOON/EVENING.
1145 AM EDT FRI SEP 11 2015 HIGH PRESSURE WILL BRIEFLY BUILD INTO THE REGION TODAY, BRINGING MAINLY SUNNY SKIES, AND WARM TEMPERATURES. THE SAME BIG PICTURE IDEA CONTINUES TO BE ADVERTISED IN THE LATEST MODEL CYCLE, IN WHICH A SLOW MOVING, DEEP UPPER-LEVEL TROUGH IMPACTS NY/PA THIS WEEKEND. CONSENSUS FROM OUR SURROUNDING OFFICES AND WPC ALIKE IS TO LEAN TOWARDS THE SLOWER, SOMEWHAT MORE AMPLIFIED EUROPEAN MODEL SOLUTION, AS IT PERTAINS TO THE ABOVE MENTIONED UPPER TROUGH/CLOSED LOW. SATURDAY NIGHT LOOKS WET AREA-WIDE, WITH GOOD MOISTURE INFLOW FROM THE SOUTH AND SOUTHEAST AT LOWER-LEVELS, WELL DEFINED FRONTOGENESIS FORCING, AND DIFFLUENT UPPER-LEVEL FLOW JUST AHEAD OF THE APPROACHING TROUGH AXIS.
High clouds overhead are masking the low clouds underneath, but observations do indicate some patchy MVFR cigs near the southern terminals. Cold front moving across the area this afternoon will shift the winds from light southerly to northeast at around 10 kts. Cold front will drop through West Central Texas this afternoon, but cold advection will really hold off until tonight. After highs in the low to mid 90s, stronger northeast winds develop tonight and a cooler and drier air mass will begin to work its way into the area.
UNSEASONABLY CHILLY AIR WILL CONTINUE TO ADVECT INTO THE REGION TODAY AND TONIGHT COURTESY OF A FAIRLY DEEP UPPER LEVEL TROUGH CENTERED ACROSS CENTRAL CANADA DIGGING INTO THE REGION.
1047 AM EDT FRI SEP 11 2015 A COLD FRONT APPROACHES THIS EVENING INCREASING THE CHANCE FOR RAIN.
855 AM EDT FRI SEP 11 2015 RAIN CHANCES WILL INCREASE AGAIN LATER TODAY AS A COLD FRONT MOVES OUT OF THE MIDWEST. WHERE A WEAK TROUGH AXIS WAS OBJECTIVELY ANALYZED. RAIN CHANCES WILL INCREASE LATER THIS AFTERNOON AS A DEEPENING UPPER TROUGH PUSHES A FRONT OUT OF THE MIDWEST. DRY ADVECTION AND SUBSIDENCE WILL DECREASE MEASURABLE RAINFALL CHANCES LATER ON SATURDAY AS THE MID LEVEL TROUGH AXIS AND DRY SLOT PROGRESS EASTWARD. LOW CONVECTIVE THRESHOLDS UNDER THE ENCROACHING TROUGH AND FLOW OFF THE LAKES MAY SUPPORT SOME ISOLD TO SCT SHOWERS.
1223 PM EDT FRI SEP 11 2015 HIGH PRESSURE ACROSS THE REGION WILL BRING ONE MORE DRY DAY BEFORE EXITING INTO NEW ENGLAND. THEN A SLOW MOVING UPPER LEVEL LOW WILL MOVE INTO THE AREA TONIGHT AND SATURDAY WITH PERIODS OF RAIN DEVELOPING AND COOLER TEMPERATURES.
620 AM CDT FRI SEP 11 2015 INCREASING CLOUDS OVER ALL OF ARKANSAS ARE ASSOCIATED WITH CONVECTION AND A COLD FRONT. AHEAD OF AND ASSOCIATED WITH THE COLD FRONT.
436 AM PDT FRI SEP 11 2015 High pressure will gradually build over Eastern Washington and Northern Idaho and allow for a warming and drying trend under sunny skies through the rest of the week.
1042 AM EDT FRI SEP 11 2015 A COLD FRONT WILL BRING A CHANCE OF RAIN TO THE REGION TODAY. MUCH COOLER AIR WILL FILTER INTO THE AREA IN THE WAKE OF THIS FRONT FOR THE WEEKEND.
SHRA/TSRA WILL SLOWLY DIMINISH TONIGHT INTO SATURDAY AS A COLD FRONT MOVES THROUGH SOUTH CENTRAL TEXAS. UPPER AIR ANALYSIS LAST EVENING SHOWED A BROAD TROUGH OVER MOST OF THE COUNTRY WITH TWO AXES. DEW POINT TEMPERATURES WERE GENERALLY IN THE LOWER TO MIDDLE 70S. DURING THIS PERIOD THE SECOND TROUGH AXIS WILL ROTATE DOWN THROUGH TEXAS.
5C WHICH IS STILL A DEGREE WARMER THAN THE AVERAGE FOR THIS DATE. GENERAL TROUGH OVER ERN CONUS EVIDENT ON IR IMAGERY. TDA WILL BE BIT OF TRANSITION DAY AS SUBTROPICAL RIDGE REMAINS DOMINANT. BUT INCREASINGLY SHARP M/ULVL TROUGH OVER GREAT LAKES DIGS INTO TN VLY. AS RIDGE WEAKENS. DEEP TROUGH OVER TN/OH VLYS BECOMES EVEN DEEPER AND CLOSES INTO H5 LOPRES.
1010 AM MDT FRI SEP 11 2015 EASTERN COLORADO UNDER POST FRONTAL REGIME TODAY FOLLOWING LAST EVENINGS COLD FRONT WITH CONSIDERABLE LOW CLOUDS AND COOLER LOW LEVELS THIS MORNING. GIVEN THE STRONG INVERSION AND CLOUDS EXPECT TEMPERATURES ON THE PLAINS ONLY IN THE LOWER TO MID 70S. A COLD FRONT ASSOCIATED WITH AN UPPER LEVEL TROUGH MOVING ACROSS UPPER MIDWEST PUSHED THROUGH EASTERN COLORADO YESTERDAY EVENING. COOLER AIR BEHIND IT COMBINED WITH INCREASED MOISTURE HAS PRODUCED LOW CLOUDS OVER PARTS OF EASTERN COLORADO. THIS IS LIKELY ASSOCIATED WITH A JET MOVING DOWN THE BACKSIDE OF THE TROUGH CENTERED OVER THE UPPER MIDWEST. HIGHS WILL BE COOLER TODAY WITH70S EXPECTED ACROSS NORTHEAST COLORADO. EXPECT SKIES TO CLEAR OUT AS DRIER AND WARMER AIR MOVES INTO THE AREA.
1246 PM EDT FRI SEP 11 2015 HIGH PRESSURE WILL BRIEFLY BUILD INTO THE REGION TODAY, BRINGING MAINLY SUNNY SKIES, AND WARM TEMPERATURES. THE SAME BIG PICTURE IDEA CONTINUES TO BE ADVERTISED IN THE LATEST MODEL CYCLE, IN WHICH A SLOW MOVING, DEEP UPPER-LEVEL TROUGH IMPACTS NY/PA THIS WEEKEND. CONSENSUS FROM OUR SURROUNDING OFFICES AND WPC ALIKE IS TO LEAN TOWARDS THE SLOWER, SOMEWHAT MORE AMPLIFIED EUROPEAN MODEL SOLUTION, AS IT PERTAINS TO THE ABOVE MENTIONED UPPER TROUGH/CLOSED LOW. SATURDAY NIGHT LOOKS WET AREA-WIDE, WITH GOOD MOISTURE INFLOW FROM THE SOUTH AND SOUTHEAST AT LOWER-LEVELS, WELL DEFINED FRONTOGENESIS FORCING, AND DIFFLUENT UPPER-LEVEL FLOW JUST AHEAD OF THE APPROACHING TROUGH AXIS.
(PREVIOUS DISC) PREVAILING SOUTHWEST TO WEST FLOW AS SUBTROPICAL RIDGE AXIS REMAINS DISPLACED TO SOUTH FLORIDA.
706 AM EDT FRI SEP 11 2015 WEAK HIGH PRESSURE BUILDS IN LATER TODAY AS LOW PRESSURE DEPARTS TO THE NORTHEAST. LOW PRESSURE WILL IMPACT THE REGION THIS WEEKEND.
HIGH PRESSURE WILL DOMINATE THE WEATHER FOR ANOTHER DAY. HIGH PRESSURE OVER THE AREA WILL PROVIDE DRY AND STABLE CONDITIONS.
HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH SATURDAY WITH ABOVE NORMAL HIGH TEMPERATURES. A SMALL UPPER LEVEL LOW PRESSURE SYSTEM OFF THE COAST OF NORTHERN CALIFORNIA WILL SPREAD A LITTLE CLOUDINESS INTO CENTRAL OREGON ALONG WITH SOME SMOKE ALOFT FROM FIRES IN CALIFORNIA.
NO BIG CHANGES TO THE SHORT TERM THINKING THE WARM FRONT WAS SOUTH OF THE CWA. WHERE DEWPOINTS WERE IN THE LOWER 70S AND FOG WAS MORE WIDESPREAD.
DRIER AND WARMER CONDITIONS ARE FORECAST TODAY. A SLIGHT CHANCE OF AFTERNOON STORMS RETURNS SATURDAY OVER THE HIGHER TERRAIN FROM FLAGSTAFF SOUTH.
1148 AM CDT FRI SEP 11 2015 THE COLD FRONT CONTINUES TO MOVE THROUGH ARKANSAS. /ISSUED 620 AM CDT FRI SEP 11 2015/ INCREASING CLOUDS OVER ALL OF ARKANSAS ARE ASSOCIATED WITH CONVECTION AND A COLD FRONT. AHEAD OF AND ASSOCIATED WITH THE COLD FRONT.
SFC COLD FRONT IS MOVG SWD ACROSS THE REGION WITH NORTH TO NORTHEAST WINDS IN ITS WAKE. /ISSUED 412 AM CDT FRI SEP 11 2015/ A COLD FRONT IS DRAPED ACROSS THE OKLAHOMA PANHANDLE AND MOVING SOUTHWARD THIS MORNING. WINDS WILL SHIFT NORTHERLY AND BRING LOW AND MID LEVEL CLOUDS AS WELL AS COOLER TEMPERATURES ACROSS THE AREA TODAY. THE UPPER LEVEL FLOW OVER THE PANHANDLES WILL REMAIN NORTHWESTERLY THROUGH AT LEAST SATURDAY NIGHT BETWEEN STRONG RIDGING ALONG THE WEST COAST AND A DEEPENING TROUGH ACROSS THE GREAT LAKES.