Aikyam-Lab/Synoptic-Bench huggingface dataset:
1140 PM CDT SAT MAY 23 2015 CURRENTLY WATCHING A WEAK MID-LEVEL TROUGH MOVING NORTHEASTWARD ACROSS CENTRAL MN. SHOWERS/ISOLATED THUNDERSTORMS WILL CONTINUE ACROSS THE AREA WITH DEEP/MOIST SOUTHERLY FLOW TAKING HOLD ACROSS THE FORECAST AREA AS LOW PRESSURE RIDES NORTH THOUGH MN. CLOSER TO BETTER FORCING WITH INCOMING COLD FRONT.
HIGH PRESSURE OFF THE MID ATLANTIC COASTLINE CONTINUES TO RIDGE WEST SOUTHWEST OVER THE SOUTHEAST U.
THE UPPER LEVEL LOW PRESSURE SYSTEM OVER EXTREME EASTERN UTAH WILL CONTINUE EAST INTO THE CENTRAL ROCKIES TONIGHT INTO SUNDAY.
925 PM EDT SAT MAY 23 2015 LITTLE CHANGE TO THE BASIC WX PACKAGE AS A STRONG HI PRES RIDGE CENTERED OVER THE CAROLINAS NUDGES ITS WAY INTO THE W ATLC. STRONG HI PRES RIDGE NUDGING ITS WAY OFF THE CAROLINA COAST HAS ALLOWED E/NE SFC WINDS TO INCREASE TO A MODERATE TO FRESH BREEZE OVER MUCH OF THE LCL ATLC OVER THE PAST FEW HRS. FCST SEAS MAY BE A LITTLE ON THE HIGH SIDE GIVEN THE LATEST BUOY OBS.
1052 PM CDT SAT MAY 23 2015 FOR 06Z TAFS /ISSUED 925 PM CDT SAT MAY 23 2015/ A 5H HIGH PRESSURE AXIS EXTENDED FROM THE SERN US BACK INTO THE UPPER MIDWEST WHILE AN UPPER LOW IS CENTERED OVER THE CENTRAL ROCKIES. TEMPS WILL ONLY FALL INTO THE LOW 60S WITH LITTLE COOLER TEMPS (UPPER 50S) OVER NE AL AND PORTIONS OF SRN MID TN. BY SUNDAY LOW LEVEL MOISTURE WILL INCREASE ACROSS THE TN VALLEY AS AN UPPER TROF APPROACHES THE AREA.
1150 PM CDT SAT MAY 23 2015 HIGH PRESSURE CENTERED OFF THE MID-ATLANTIC COAST CONTINUES TO BRING DRY LOW LEVEL AIR AND LIGHT SE WINDS INTO CENTRAL ILLINOIS WITH DEWPOINTS PRIMARILY IN THE 40S. WHILE LOW PRESSURE MOVING EASTWARD INTO THE CENTRAL PLAINS BRINGS MOIST SOUTHERLY FLOW INTO THE SOUTHERN PLAINS. AS THE LOW EDGES CLOSER OVERNIGHT. LOWS WILL BE UP SEVERAL DEGREES FROM LAST NIGHT WITH TEMPERATURES REACHING THE LOW 60S. HIGH PRESSURE CENTERED OVER WEST VIRGINIA WILL CONTROL THE WEATHER ACROSS CENTRAL ILLINOIS TONIGHT. 19Z/2PM OBSERVATIONS CONTINUE TO SHOW AN EASTERLY COMPONENT TO THE LOW-LEVEL FLOW AROUND THE HIGH. AS WESTERN CONUS UPPER LOW GRADUALLY LIFTS TOWARD THE NORTHERN PLAINS.
LEE TROUGHING CONTINUES TO STRENGTHEN FROM EASTERN CO INTO EASTERN NM WITH THE OPEN GULF ALLOWING RICH MOISTURE TO CONTINUE STREAMING INTO THE PLAINS.
HIGH PRESSURE CENTERED JUST TO OUR SOUTHEAST WILL KEEP US PRECIP FREE.
BUT MOST OF THE SHOWER ACTIVITY SHOULD REMAIN CLOSER TO THE LOW OVER THE MOUNTAINS. MODELS SHOW THE UPPER LOW WILL STILL BE OVER THE CENTRAL PART OF THE STATE. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE ACROSS NORTH CENTRAL AND NORTHEASTERN COLORADO SUNDAY EVENING AS THE UPPER LOW SLOWLY MEANDERS ACROSS THE CENTRAL ROCKIES.
/ISSUED 635 PM CDT SAT MAY 23 2015/ 00Z TAF CYCLE UPPER LOW OVER THE CENTRAL ROCKIES WILL ALLOW THE DRYLINE TO REMAIN ACROSS THE PANHANDLES THROUGH SUNDAY.
731 PM EDT SAT MAY 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE CENTRAL APPALACHIANS WILL DRIFT EAST TO THE DELMARVA COAST TONIGHT.
1028 PM EDT SAT MAY 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE CENTRAL APPALACHIANS WILL DRIFT EAST TO THE DELMARVA COAST TONIGHT.
LOW PRESSURE WILL GRADUALLY EXIT THE AREA TO THE EAST OVER THE NEXT FEW DAYS. WE CAN EXPECT EARLIER AND MORE WIDESPREAD CLEARING ON SUNDAY ALONG WITH WARMER TEMPERATURES.
708 PM CDT SAT MAY 23 2015 CURRENTLY WATCHING A WEAK MID-LEVEL TROUGH MOVING NORTHEASTWARD ACROSS CENTRAL MN. SHOWERS/ISOLATED THUNDERSTORMS WILL CONTINUE ACROSS THE AREA WITH DEEP/MOIST SOUTHERLY FLOW TAKING HOLD ACROSS THE FORECAST AREA AS LOW PRESSURE RIDES NORTH THOUGH MN. CLOSER TO BETTER FORCING WITH INCOMING COLD FRONT.
DEPARTING HIGH PRESSURE WILL PRODUCE SOUTH WINDS. AS THE UPPER RIDGE SLIPS TO THE EAST DURING THE NEXT 24 HRS, EXPECT THE SURFACE FLOW TO ACCELERATE, AND ADDITIONAL MOISTURE ADVECTION MAY HELP PRODUCE ISOLATED CONVECTION ACROSS OUR WEST BY SUNDAY AFTERNOON.
BECAUSE WE REMAIN UNDER THE INFLUENCE OF HIGH PRESSURE. CHATTANOOGA AIRPORT, TN 59 85 66 83 / 0 10 10 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 57 84 63 82 / 0 0 10 30 OAK RIDGE, TN 56 84 65 82 / 0 10 10 30 TRI CITIES AIRPORT, TN 52 82 57 81 / 0 0 10 20.
LOW PRESSURE WILL GRADUALLY EXIT THE AREA TO THE EAST OVER THE NEXT FEW DAYS. RIDGE OF HIGH PRESSURE WILL BUILD INTO OUR AREA OVER THE NEXT FEW DAYS WHICH WILL LEAD TO CONTINUED DRY WEATHER PLUS WARMER CONDITIONS. NEAR THE COAST THE COOLER WATER TEMPS AND LACK OF AN OFFSHORE WIND WILL KEEP THOSE SPOTS GENERALLY IN THE UPPER 50S TO MID 60S. A MID-UPPER LEVEL LOW PRESSURE AREA OVER THE CENTRAL VALLEY WILL MOVE S-SE DURING THE PERIOD.
639 PM CDT SAT MAY 23 2015 HIGH PRESSURE CENTERED OVER WEST VIRGINIA WILL CONTROL THE WEATHER ACROSS CENTRAL ILLINOIS TONIGHT. 19Z/2PM OBSERVATIONS CONTINUE TO SHOW AN EASTERLY COMPONENT TO THE LOW-LEVEL FLOW AROUND THE HIGH. AS WESTERN CONUS UPPER LOW GRADUALLY LIFTS TOWARD THE NORTHERN PLAINS.
HIGH PRESSURE EAST OF INDIANA WILL KEEP IT DRY THROUGH AT LEAST EARLY AFTERNOON SUNDAY.
632 PM PDT SAT MAY 23 2015 The Memorial Day Weekend is expected to be warmer than average, with afternoon temperatures in the 70s and 80s. General low pressure will linger on tomorrow along with a small scale synoptic scale low pressure area dropping down through British Columbia Sunday night.
THE AIRMASS IS UNDER THE INFLUENCE OF A BROAD UPPER LEVEL LOW PRESSURE SYSTEM. /ISSUED 540 PM MDT SAT MAY 23 2015/ ANALYSIS SHOWS BROAD, SLOW-MOVING LOW PRESSURE SYSTEM, CURRENTLY CENTERED OVER EASTERN UTAH, CONTINUING TO BRING MIX OF GULF OF MEXICO AND PACIFIC MOISTURE INTO CENTRAL/SOUTHWEST MT. FORECAST MODEL SOLUTIONS HAVE VARIED LITTLE OVER LAST SEVERAL RUNS, GIVING GOOD CONFIDENCE THAT THE LOW PRESSURE SYSTEM WILL STAY ON ITS NORTHEAST COURSE AND REACH EASTERN WYOMING BY SUNDAY NIGHT. AS FOR TEMPERATURES, THE EXITING LOW PRESSURE SYSTEM AND MOISTURE WILL RESULT IN DECREASING CLOUD COVERAGE FOR LATTER HALF OF THE HOLIDAY WEEKEND, ALLOWING AFTN HIGHS TO CLIMB INTO THE MID- AND UPPER 60S TOMORROW AND LOW 70S ON MON.
GENERALLY SUNNY SKIES AND EVEN WARMER WEATHER PREVAILED FOR THE END OF THE WEEK. MID AFTERNOON HIGH TEMPERATURES HAVE WARMED INTO THE LOW/MID 80S. THE HIGH PRESSURE THAT BROUGHT UNSEASONABLY COOL CONDITIONS ON THUR CONTINUED TO BUILD EASTWARD. LOW PRESSURE ALOFT OVER EASTERN CANADA CONTINUED TO WEAKEN AND MOVED FURTHER TO THE NORTH AND EAST. WHICH HAS RELAXED TROUGHING THAT WAS SITUATED ALONG THE ATLANTIC SEABOARD YESTERDAY. AS THE HIGH PRESSURE TO OUR EAST CONTROLS THE GENERAL WEATHER SITUATION. LOW-MID LEVEL MOISTURE THEN RETURNS WITH THE HIGHEST CONFIDENCE ON CLOUDS BEING SCT BUT CANNOT RULE OUT SOME BKN CIGS BEING REPORTED IN THE AFTERNOON.
721 PM EDT SAT MAY 23 2015 HIGH PRESSURE WITH A DRY AND WARM MEMORIAL DAY WEEKEND. QUITE TRANQUIL AS UPPER RIDGING ALOFT BUILDS OVER THE EASTERN THIRD OF THE NATION. THIS WILL BRING LOTS OF SUNSHINE AND WARMER CONDITIONS EACH DAY.
1043 PM CDT SAT MAY 23 2015 WEAK MID LEVEL RIDGING HAS QUIETED DOWN THE DAY ACROSS THE AREA WITH JUST A FEW SPRINKLES CONTINUING ACROSS THE EASTERN CWA. AND LIMITING BOTH THE HIGH TEMPS AND LOWER LEVEL DESTABILIZATION.
WITH WEAK TROUGHING NOTED FROM BAHAMAS NWD TO ABOUT 30N76W. LOWS TONIGHT A BIT WARMER THAN LAST NIGHT. BROKEN STRATOCU FIELD IN THE LOW VFR RANGE THIS EARLY EVENING IS EXPECTED TO LOWER TO UPPER END OF THE MVFR RANGE THIS LATE EVENING AND OVERNIGHT HOURS.
IDAHO TO MALHEUR COUNTY WAS ON THE NW FLANK OF AN UPPER LOW OVER THE CENTRAL ROCKIES TODAY. AS ANOTHER UPPER LOW DROPS OVER THE PACNW/IDAHO FOR SUNDAY. UNTIL 09Z NUMEROUS LOCALLY MVFR SHOWERS AND SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE HIGHER TERRAIN.
635 PM CDT SAT MAY 23 2015 00Z TAF CYCLE UPPER LOW OVER THE CENTRAL ROCKIES WILL ALLOW THE DRYLINE TO REMAIN ACROSS THE PANHANDLES THROUGH SUNDAY.
HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH THE MIDDLE OF THE WEEK. HIGH PRESSURE WAS LOCATED JUST OFF DELMARVA. STRONG UPPER RIDGING WAS IN PLACE ACROSS THE EASTERN SEABOARD AND IS FORECAST TO REMAIN STRONG THROUGH THE MIDDLE OF THE WEEK. WITH THE HIGH PRESSURE IN CONTROL AND MOVING VERY LITTLE. LOWS SHOULD BE A COUPLE OF DEGREES ABOVE THE LOWS THIS MORNING. THE UPPER LEVEL LOW TRACKING EASTWARD TO THE CO FRONT RANGE TONIGHT SHIFTING THE AFOREMENTIONED UPPER LEVEL RIDGE EASTWARD ACROSS THE TN/OH VALLEY INTO THE MID-ATLANTIC AND CAROLINAS. HIGHS SUN IN THE LOW TO MID 80S AND LOWS SUN NIGHT NEAR 60F. -VINCENT STRONG UPPER RIDGING WILL LIKELY MAX OUT EARLY IN THE WEEK ACCORDING TO THE LATEST MODELS.
935 PM EDT SAT MAY 23 2015 KBYX DETECTS ISOLATED SHOWERS OVER OFFSHORE GULF OF MEXICO WATERS NORTH-NORTHWEST OF THE LOWER KEYS. TEMPERATURES ARE IN THE LOWER TO MID 80S. IN THE LOW LEVELS OF THE ATMOSPHERE. AN AREA OF HIGH PRESSURE NEAR THE COAST OF VIRGINIA WILL ENTER THE NORTHWEST ATLANTIC OCEAN OVERNIGHT. AN ANTICYCLONE WILL BE CENTERED NEAR THE SOUTHEAST COAST OF THE UNITED STATES TONIGHT. A RIDGE OF HIGH PRESSURE WILL BE LOCATED OVER THE FLORIDA PENINSULA OVERNIGHT.
716 PM EDT SAT MAY 23 2015 HIGH PRESSURE SHIFTS TO OUR SOUTH ON SUNDAY. THIS WILL PROVIDE FAIR AND MUCH WARMER WEATHER ON SUNDAY INTO MEMORIAL DAY.
1055 PM EDT SAT MAY 23 2015 A LARGE AREA OF HIGH PRESSURE OVER THE CENTRAL APPALACHIANS WILL DRIFT EAST TO THE DELMARVA COAST TONIGHT.
616 PM CDT SAT MAY 23 2015 WEAK MID LEVEL RIDGING HAS QUIETED DOWN THE DAY ACROSS THE AREA WITH JUST A FEW SPRINKLES CONTINUING ACROSS THE EASTERN CWA. AND LIMITING BOTH THE HIGH TEMPS AND LOWER LEVEL DESTABILIZATION.
1034 PM EDT SAT MAY 23 2015 HIGH PRESSURE WITH A DRY AND WARM MEMORIAL DAY WEEKEND. QUITE TRANQUIL AS UPPER RIDGING ALOFT BUILDS OVER THE EASTERN THIRD OF THE NATION. THIS WILL BRING LOTS OF SUNSHINE AND WARMER CONDITIONS EACH DAY.
741 PM EDT SAT MAY 23 2015 HIGH PRESSURE WILL KEEP SKIES PARTLY CLOUDY AND CONDITIONS DRY AND WARM OVERNIGHT INTO SUNDAY. AS SFC RIDGING CENTERED EAST OF THE AREA THIS AFTERNOON CONTINUES TO SLIDE EAST INTO THE ATLANTIC OCEAN. BERMUDA UPPER RIDGING WILL AMPLIFY INTO THE EASTERN CONUS THROUGH SUNDAY. BROAD WRN CONUS TROF ENERGY WILL BEGIN TO EJECT NE THROUGH THE PLAINS INTO THE WRN GREAT LAKES ON SUNDAY. KEPT SLIGHT CHANCE POPS ACROSS WESTERN AREAS SUNDAY AFTN AS SUBTLE 925/850MB MOISTURE GRADIENT/TROF LIFTS INTO WRN PORTIONS OF THE AREA. GIVEN WEAK NATURE OF FORCING HAVE MAINTAINED JUST LOW CHANCE/SLIGHT CHANCE POPS WITH THIS WARM FRONTAL FEATURE. BREAK IN PRECIP CHANCES MAY EVOLVE LATER SUNDAY EVENING AS THIS WARM FRONTAL BOUNDARY LIFTS NORTH OF THE AREA.
1035 AM EDT SUN APR 10 2016 HIGH PRESSURE HAS PULLED OFF TO THE EAST THIS MORNING WITH SOME SNOW FLAKES MOVING ACROSS THE NORTHERN PARTS OF THE FORECAST AREA. LOW PRESSURE AND A FRONT WILL RETURN MOISTURE QUICKLY BACK INTO PARTS OF THE REGION LATER THIS AFTERNOON AND THEN ACROSS THE ENTIRE AREA TONIGHT INTO MONDAY.
ONCE THE LOW LEVEL CAP ERODES THE NE WINDS WILL BECOME GUSTY. HIGH PRESSURE TO THE NORTH WILL PRODUCE AN EASTERLY FLOW WITH WIND SURGES TOWARD CAUTIONARY LEVELS TONIGHT AND POSSIBLY AGAIN MONDAY NIGHT.
HIGH PRESSURE BUILDS OFF THE CAROLINA COAST TODAY AND WILL SHIFT FLOW TO NORTHEAST WITH BREEZY WINDS INCREASING TO 15 TO 25 MPH ALONG THE COASTAL COUNTIES AND 10-15 MPH MUCH FURTHER INLAND.
THIS IS IN RESPONSE TO APPROACHING WEAK S/W TROUGH AND SUFFICIENT INSTABILITY. A MORE SUBSTANTIAL S/W TROUGH APPROACHES THIS EVENING WITH CONVECTION MOVING OFF OF THE HIGHER TERRAIN OF MEXICO AND INTO THE WESTERN PARTS OF THE AREA. UPPER LVL LOW OVER THE BAJA PENINSULA WILL OPEN TO A TROUGH AS IS MOVES EASTWARD TODAY AND TONIGHT. TODAY WILL BE WARMER WITH SOUTH TO SOUTHWEST LOW LVL FLOW. BRINGING EVEN HIGHER TEMPERATURES WITH HIGHS IN THE LOWER 90S ACROSS MUCH OVER THE COASTAL PLAINS AND WESTWARD.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE CENTRAL CALIFORNIA INTERIOR THROUGH MONDAY WITH SNOW OVER THE HIGH SIERRA. THE MOIST AND UNSTABLE AIR MASS REMAINS IN PLACE WITH THE UPPER LOW SPINNING TO OUR SOUTH JUST OFF THE COAST OF NORTHERN BAJA CA. THE LOW WILL SHIFT EAST OVER THE ARIZONA/MEXICO BORDER THIS AFTERNOON AS YET ANOTHER UPSTREAM SYSTEM DROPS DOWN OFF THE CA COAST.
SURFACE AND UPPER LEVEL RIDGING WILL OVERTAKE THE AREA LATER IN THE WEEK AND INTO THE WEEKEND. WITH DRY AND WARMER CONDITIONS EXPECTED. MOSTLY CLOUDY SKIES ACROSS THE AREA THIS MORNING AS A WARM FRONT APPROACHES FROM THE SOUTHWEST. 14Z TEMPS RANGED FROM THE MID 30S NORTHEAST TO THE LOW 40S SOUTHWEST. THE WARM FRONT WILL LIFT NORTHEAST ACROSS THE FORECAST AREA THROUGH EARLY AFTERNOON WITH THE ENTIRE AREA INTO THE WARM SECTOR THEREAFTER.
A COLD FRONT WILL CROSS THE PANHANDLES LATE TONIGHT AND SHIFT WINDS OUT OF THE NORTH. A COLD FRONT WILL ALSO MOVE THROUGH THE REGION FROM THE NORTH TONIGHT. THE WEAKENING UPPER LEVEL LOW WILL MOVE ACROSS TX PNHDL MONDAY.
944 AM PDT SUN APR 10 2016 LOW PRESSURE WILL CONTINUE MOVING EAST OVER BAJA CALIFORNIA TODAY WHILE ANOTHER LOW MOVES IN FROM THE PACIFIC TO OUR SOUTH ON MONDAY.
TEMPERATURES ARE IN THE LOWER TO MID 70S. IN THE LOW LEVELS OF THE ATMOSPHERE. AN LARGE AREA OF HIGH PRESSURE WILL BE CENTERED NEAR THE CAROLINAS THIS AFTERNOON. AN ANTICYCLONE WILL BE LOCATED OVER THE YUCATAN PENINSULA TODAY. A TROUGH OF LOW PRESSURE WILL PROGRESS EASTWARD ACROSS THE FLORIDA PENINSULA THIS AFTERNOON.
1116 AM EDT SUN APR 10 2016 A FRONTAL BOUNDARY WILL BRING WARMER AIR. CDFNT ASSOCIATED WITH NRN STREAM TROF MOVG THROUGH THE UPR GRTLKS SHOULD BE EXITING OUR CWA MONDAY MORNING, HWVR, SRN STREAM SHRTWV EXPECTED TO MOVE ENE FROM THE SRN PLAINS ALONG THE FRONT DURING THE DAY CAUSING FRONTAL RAIN SHIELD TO EXPAND BACK NORTHWARD INTO OUR AREA, BUT PROBABLY NOT AS FAR NORTH AS NW PORTION OF OUR CWA. THIS RIDGE EXPECTED TO BECOME STNRY OVER THE GRTLKS TUE-SAT AS A STRONG SHRTWV DIGS INTO THE SWRN CONUS EVENTUALLY CUTTING OFF AND BUILDING DOWNSTREAM RIDGING ALOFT OVER THE MS VALLEY/UPR GRTLKS. A LULL IN THE PRECIPITATION PATTERN IS THEN EXPECTED 13-16Z BEFORE DEEPER MOISTURE/LIFT OVERSPREADS IN ADVANCE OF A COLD FRONT THIS AFTN/EVE.
1019 AM EDT SUN APR 10 2016 WEAK HIGH PRESSURE MOVES OVER THE REGION TODAY. A WARM FRONT PASSES THROUGH LATE SUNDAY. THE WARM FRONT MOVES FARTHER NORTH OF THE REGION MONDAY WITH A COLD FRONT SLOWLY APPROACHING FROM THE WEST.
THE FORECAST REMAINS ON TRACK AS STRONG WARM ADVECTION ENSUES TODAY AHEAD OF THE DIGGING UPPER GREAT LAKES LOW AND ASSOCIATED COLD FRONT. COLD FRONT WILL SLOWLY SAG TOWARD THE REGION.
RIDGE OF HIGH PRESSURE WILL REMAIN OVER THE REGION WITH A CUT OFF LOW PRESSURE TO THE SOUTH.
912 AM PDT SUN APR 10 2016 A low pressure system will bring showers to the north state thru the weekend with isolated thunderstorms possible. Low pressure area over Southern California and Arizona will slowly move east today.
WEAK H5 RIDGING WILL REMAIN IN PLACE ACROSS KANSAS DURING THE DAY TIME HOURS. AS SHORT WAVE WILL BE SLOW TO MOVE ACROSS THE AREA GIVEN BLOCK BY STRONGER CLOSED LOW DESCENDING FROM CENTRAL CANADA INTO GREAT LAKES. WEAK NORTHWEST FLOW AND SURFACE RIDGING WILL PREVAIL THROUGH MID- WEEK.
WATER VAPOR LOOP SHOWS AN UPPER LOW OVER SOUTHEAST MAN. CLOSED LOW IS FORECAST TO MOVE EAST AND OPEN UP. ANOTHER TROUGH OVER NORTHERN SASK WILL MOVE ACROSS THE FORECAST AREA TONIGHT. UPPER TROUGH SHIFTS EAST ON MON. UPPER LEVEL TROUGH OFF THE PACIFIC NORTHWEST COAST WILL MOVE ACROSS THE AREA ON TUE. COOLER AIR TO MOVE INTO THE AREA TODAY.
THE LOW LEVEL JET IS PROGGED TO MAX OUT AROUND 50 KTS NOW. THE WARM FRONT DOES WANT TO LIFT INTO AREA. BUT THERE IS ALSO A WEAK RIPPLE MOVING OUT OF THE SOUTHERN PLAINS THAT WILL INTERACT WITH THE COLD FRONT TOO. WITH THE LOCAL AREA/S BETTER CHANCES COMING LATE MORNING/AFTERNOON WITH THE COLD FRONT. STRONG WARMING ALOFT AND NEAR FREEZING AT THE SFC STILL BRINGING SOME PCPN TYPE CONCERNS FOR EARLY THIS MORNING.
COVERAGE IS EXPECTED TO BE MORE SCATTERED IN NATURE OVER SOUTHERN UTAH CLOSER TO THE TROUGH AND OVER FAR NORTHERN UTAH/SOUTHWEST WYOMING IN ASSOCIATION WITH THE DEFORMATION ZONE. BUT SHOULD WARMER BETTER THAN YESTERDAY WITH MUCH LESS CLOUD COVER. BUT ANOTHER TROUGH WILL FOLLOW QUICKLY BEHIND.
703 AM CDT SUN APR 10 2016 07z/2am surface analysis shows 1028mb high centered over the eastern Great Lakes into the Appalachians, while a warm front is draped from eastern Nebraska to Arkansas. As the high shifts further away from the region, the warm front will gradually lift into central Illinois today, triggering showers and a few thunderstorms. Aside from the rain chances, it will be a windy and warmer day. Cold front will settle southward into central Illinois tonight, bringing widespread rain. The front will drop south of the Ohio River Monday night, as Canadian high pressure builds in from the north. After that, high pressure will dominate the weather for the remainder of the extended.
735 AM EDT SUN APR 10 2016 LOW LEVEL WINDS HAVE BECOME NE THIS MORNING AS HIGH PRESSURE OVER THE EASTERN U.
The low clouds with dissipate by early afternoon and VFR conditions will prevail this afternoon and evening. /issued 454 AM CDT SUN APR 10 2016/ (Today and Tonight) The WV imagery was showing a well defined upper level low just of the southern CA coast. The low clouds will begin to break up this afternoon across at least the western 2/3 of the area. Highs will be in the lower to mid 80s.
CHATTANOOGA AIRPORT, TN 64 47 73 57 / 20 10 10 90 KNOXVILLE MCGHEE TYSON AIRPORT, TN 64 47 72 52 / 10 10 10 90 OAK RIDGE, TN 64 48 72 51 / 10 10 20 90 TRI CITIES AIRPORT, TN 62 43 70 49 / 10 10 10 80.
749 AM EDT SUN APR 10 2016 WEAK HIGH PRESSURE MOVES OVER THE REGION TODAY. A WARM FRONT PASSES THROUGH LATE SUNDAY. THE WARM FRONT MOVES FARTHER NORTH OF THE REGION MONDAY WITH A COLD FRONT SLOWLY APPROACHING FROM THE WEST.
SPLIT FLOW INITIALLY ACROSS THE AREA WITH SOUTHERN BRANCH BECOMING DOMINATE AS WE GO THROUGH THE WORK WEEK BUT BY WEEKEND WE SEE DEEP UPPER LOWS AT BOTH ENDS OF THE CONTINENT.
1041 AM EDT SUN APR 10 2016 HIGH PRESSURE OVER THE REGION TODAY WILL OFFSHORE THIS AFTERNOON.
THE FORECAST REMAINS ON TRACK AS STRONG WARM ADVECTION ENSUES TODAY AHEAD OF THE DIGGING UPPER GREAT LAKES LOW AND ASSOCIATED COLD FRONT. MOIST ADVECTION IS PROGGED TO INTENSIFY TONIGHT WITH A LLVL JET DVLPG AS THE MS VALLEY TROUGH/CDFNT SLIDE RAPIDLY EWD.
1026 AM EDT SUN APR 10 2016 HIGH PRESSURE BUILDS OVERHEAD OF TODAY WITH FAIR BUT COOL WEATHER EXPECTED. A WARM FRONT APPROACHES TONIGHT AND WILL BRING A LITTLE LIGHT SNOW AND RAIN TO THE REGION EARLY MONDAY.
A LOW PRESSURE SYSTEM WILL BRING SCATTERED TO NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS INTO THIS EVENING.
1032 AM CDT SUN APR 10 2016 Earlier update reflected removing pops for the morning period as elevated activity along the nose of the low level jet has moved east/subsided.
LOW PRESSURE PARTIALLY RESPONSIBLE FOR THE SHOWER AND THUNDERSTORM ACTIVITY OF THE LAST 3 DAYS FROM THE CASCADES AND MARBLE MOUNTAINS EASTWARD IS NOW ABOUT TO MOVE ONSHORE NEAR THE US/MEXICO BORDER. MEANWHILE, MID LEVEL HIGH PRESSURE IS INCHING INLAND NORTH OF US AS WEAK TROUGHING SQUEEZES EASTWARD TOWARD THE COAST FROM THE GULF OF ALASKA. TONIGHT THROUGH MONDAY A WEAK TROUGH WILL PUSH IN FROM THE WEST BRINGING A SMALL THREAT OF SHOWERS TO THE WEST SIDE AND ANOTHER THREAT OF SHOWERS AND ISOLATED THUNDERSTORMS FROM THE CASCADES EASTWARD AS MARITIME AIR PUSHES IN FROM THE SOUTHWEST.
1010 AM EDT SUN APR 10 2016 HIGH PRESSURE BUILDS OVERHEAD OF TODAY WITH FAIR BUT COOL WEATHER EXPECTED. A WARM FRONT APPROACHES TONIGHT AND WILL BRING A LITTLE LIGHT SNOW AND RAIN TO THE REGION EARLY MONDAY.
959 AM EDT SUN APR 10 2016 HIGH PRESSURE BUILDS INTO THE MID ATLANTIC STATES TODAY.
A STRONG U/L RIDGE WILL PERSIST OVER THE SOUTHEAST U. HIGH PRESSURE WILL REMAIN OVER THE COASTAL WATERS THROUGH THE PERIOD WITH ONSHORE FLOW DEVELOPING ALONG THE COAST EACH AFTERNOON.
1225 PM CDT WED JUN 17 2015 FOR 18Z TAFS /ISSUED 1041 AM CDT WED JUN 17 2015/ ANOTHER WARM START TO THE DAY WITH HIGH PRESSURE CONTINUING TO BE ENTRENCHED OVER ALABAMA AND GEORGIA. THIS TROPICAL LOW WILL CONTINUE TO MOVE NORTHEAST AROUND THE WESTERN PERIPHERY OF THE HIGH OVER ALABAMA/GEORGIA INTO ARKANSAS OVER THE NEXT 48 HOURS. MAINLY SOUTHEAST OF A PREFONTAL TROUGH AXIS EXTENDING SW FROM EASTERN KENTUCKY. LIKELY DUE TO ANOTHER WEAK CONVERGENCE BOUNDARY EXTENDING SOUTH FROM A PREFRONTAL TROUGH AXIS INTO THAT PORTION OF NORTHERN AL. WITH HIGH PRESSURE IN PLACE AT THE SFC AND ALOFT.
119 PM EDT WED JUN 17 2015 HIGH PRESSURE WILL BUILD EAST AND CREST ACROSS THE AREA LATE TODAY BEFORE SLIDING OFFSHORE TONIGHT.
THE RIDGE FURTHER RETREATS SOUTHEAST WHICH WILL ALLOW FOR SOME SLIGHTLY BETTER STORM COVERAGE TOMORROW AS MOISTURE INCREASES WITH THE SOUTHWESTERLY FETCH. HIGHS COULD BE A DEGREE OR TWO COOLER. BUT AMPLE HEATING DURING THE MORNING SHOULD HELP PUSH THEM INTO THE LOWER 90S IN MANY SPOTS ONCE AGAIN. APPROACHING REMNANTS OF TROPICAL DEPRESSION BILL WILL HELP TO FLATTEN OUT THE RIDGE THAT HAS BEEN IN PLACE ACROSS OUR AREA FOR THE PAST SEVERAL DAYS.
THE UPPER RIDGE WILL BUILD INTO COLORADO FM THE SOUTHWEST WITH THE FLOW ALOFT WEAKENING.
FORECAST - THE PREVIOUSLY MENTIONED RIDGE WILL REMAIN FAIRLY STEADY STATE AS A SERIES OF MID LATITUDE LOWS PASS EASTWARD ACROSS THE UNITED STATES. LIGHT TO MODERATE EAST TO SOUTHEAST WINDS WILL PREVAIL THROUGH THE REMAINDER OF THE WEEK AS A RIDGE ACROSS FLORIDA REMAINS FAIRLY STEADY. A RIDGE OF HIGH PRESSURE STRETCHED ACROSS THE FLORIDA PENINSULA WILL PROVIDE EASTERLY WINDS IN THE RANGE OF 10 TO 15 KNOTS.
117 PM EDT WED JUN 17 2015 THE CENTER OF AN UPPER LEVEL RIDGE WILL REMAIN ACROSS OUR REGION THIS AFTERNOON. THE UPPER RIDGE WILL BEGIN LEADING TO NOT QUITE AS HOT TEMPERATURES. WV LOOPS SHOWS UPPER LEVEL RIDGE CENTERED ALONG THE SOUTHEAST COAST. BEST CHANCE FOR ANY CONVECTIVE DEVELOPMENT THIS AFTERNOON WILL BE ACROSS THE LOWCOUNTRY/SRN MIDLANDS AND CSRA AND THEN ALONG THE NC/SC BORDER WITH S/W ENERGY MOVING AROUND THE MID/UPPER LEVEL RIDGE. EXPECT OVERNIGHT LOWS IN THE LOWER/MIDDLE 70S. MODELS INDICATE UPPER LEVEL RIDGE WILL CONTINUE TO SLOWLY WEAKEN AND SHIFT SLOWLY TO THE SOUTH AND EAST.
WITH PREDOMINATE RIDGING INFLUENCES SFC/ALOFT CONTINUING THRU 18/18Z.
127 PM EDT WED JUN 17 2015 TODAY IS A WELCOME BREAK IN THE ACTION WITH HIGH PRESSURE AND PLENTY OF SUNSHINE.
659 PM EDT WED JUN 17 2015 HIGH PRESSURE WILL BUILD OVER THE REGION THIS EVENING AND WILL REMAIN OVER THE AREA THROUGH THURSDAY AFTERNOON. A COLD FRONT WILL MOVE OUT OF QUEBEC AND CROSS MAINE THURSDAY NIGHT. WINDS CONTINUE TO DIMINISH AS HIGH PRESSURE BUILDS INTO THE REGION. THE HIGH WILL MOVE QUICKLY EAST LATER IN THE NIGHT. HAVE MAINTAINED A LOW TEMPERATURE FORECAST ON THE LOWER END OF GUIDANCE WITH LOWS IN THE LOW TO MID 40S. THE COLD FRONT WILL APPROACH THE WESTERN BORDER LATE IN THE PERIOD AND WILL INTRODUCE CHC POPS FOR SHOWERS IN THE WESTERN ALLAGASH BY EVENING. A COLD FRONT WILL BE JUST WEST OF THE AREA AT THE START OF THE PERIOD. A HIGH PRESSURE RIDGE WILL MOVE EAST AS THE FRONT MOVES THROUGH THE AREA EARLY FRI MRNG.
256 PM EDT WED JUN 17 2015 HIGH PRESSURE WILL SHIFT EAST OF THE AREA TONIGHT AND A COLD FRONT WILL APPROACH THE REGION ON THURSDAY.
105 PM CDT WED JUN 17 2015 THE REMNANTS OF TROPICAL CYCLONE BILL ARE STILL PUSHING A CU FIELD INTO WEST TEXAS THIS AFTERNOON LEAVING MVFR CONDITIONS. LATTER AREA COULD SEE SOME THUNDER MOVE INTO IT TONIGHT AFTER INITIATING ON THE HIGH TERRAIN OF NERN NM.
NO ADJUSTMENTS NECESSARY TO THE SHORT TERM AS HIGH PRESSURE REMAINS THE DOMINANT WEATHER FEATURE FOR THE NEAR FUTURE.
159 PM EDT WED JUN 17 2015 AVIATION LOW PRESSURE WILL BRING SOME MORE RAIN TO LOWER MICHIGAN ON WEDNESDAY. WITH A COLD FRONT ON THURSDAY BRINGING THE CHANCE FOR SEVERE WEATHER ACROSS EASTERN LOWER MICHIGAN.
614 PM EDT WED JUN 17 2015 A FRONT ACROSS SOUTHERN OHIO WILL LIFT NORTH ACROSS THE AREA THURSDAY AS A WARM FRONT. LOW PRESSURE WILL MOVE ACROSS THE CENTRAL LAKES TOMORROW NIGHT DRAGGING THE FRONT SOUTH AS A COLD FRONT. ANOTHER QUARTER TO HALF INCH IS POSSIBLE WITH THE LOW PRESSURE SYSTEM TONIGHT. LIFTING THE FRONT ACROSS CENTRAL OHIO NORTH ACROSS THE FORECAST AREA THURSDAY AS A WARM FRONT. THINK WILL BE MORE WIDESPREAD CONVECTION THURSDAY NIGHT AS LOW PRESSURE MOVES ACROSS THE CENTRAL LAKES DRAGGING THE FRONT SOUTH AGAIN AS A COLD FRONT.