Area Forecast Discussion
Issued by NWS Burlington, VT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KBTV 301151 AFDBTV AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BURLINGTON VT 751 AM EDT SUN AUG 30 2015 .SYNOPSIS... MID-LEVEL SHORTWAVE WILL KEEP CLOUDS AND A SLIGHT CHANCE FOR SHOWERS OVER THE NORTH COUNTRY TODAY WITH CLOUDS DIMINISHING THIS AFTERNOON AND EVENING. OTHERWISE...THE TREND WILL BE FOR A BUILDING UPPER LEVEL RIDGE ACROSS THE NORTHEASTERN UNITED STATES...WITH WARMING TEMPERATURES AND A GENERAL CONTINUATION OF THE DRY WEATHER PATTERN FOR VERMONT AND NORTHERN NEW YORK THROUGH MID WEEK. && .NEAR TERM /UNTIL 8 PM THIS EVENING/... AS OF 715 AM EDT SUNDAY...POSITIVELY TILTED MID LEVEL SHORTWAVE WEAKENING IS EVIDENT IN WATER VAPOR AS ANY RESEMBLANCE OF BAROCLINIC LEAF THAT WAS TRYING TO DEVELOP NEAR SOUTHERN MICHIGAN OVERNIGHT HAS BECOME LESS DISTINCT. THIS WEAKENING TREND IS EXPECTED TO CONTINUE AS IT CROSSES VERMONT AND HEIGHTS RISE THROUGHOUT THE DAY. THIS WILL RESULT IN PARTLY TO MOSTLY CLOUDY SKIES THIS MORNING DECREASING THROUGHOUT THE DAY. IR COMBINED WITH OBS ALREADY SHOWING CLEARING THE ST LAWRENCE VALLEY THIS MORNING. EXPECT CLOUDS UPSTREAM TO MOVE INTO THIS AREA BY MID/LATE MORNING, SO GENERAL DESCRIPTION OF VARIABLE CLOUDINESS THROUGHOUT THE MORNING WITH DECREASING CLOUDS IN THE AFTERNOON AS THE SHORTWAVE BEGINS TO EXIT EAST/SOUTHEAST. HAVE LOWERED POPS, SO ONLY A SLIGHT CHANCE OF SHOWERS DEVELOP IN THE ADIRONDACKS WITH AN ISOLATED SHOWER POSSIBLY PASSING EAST ACROSS THE SOUTHERN CHAMPLAIN VALLEY AND QUICKLY WEAKENING. NAM INDICATED A LITTLE BIT OF CAPE DEVELOPING THIS AFTERNOON, OTHERWISE GREATEST AMOUNT OF LIFT AND INSTABILITY ASSOCIATED WILL REMAIN TO OUR SOUTH. HIGH TEMPERATURES GENERALLY IN THE UPPER 70S TO LOWER 80S TODAY. && .SHORT TERM /8 PM THIS EVENING THROUGH TUESDAY/... AS OF 357 AM EDT SUNDAY...A WEAK SHORTWAVE TROUGH WILL MOVE ACROSS NORTHERN QUEBEC EARLY MONDAY MORNING AND MAY BRING A FEW RAIN SHOWERS TO EXTREME NORTHEASTERN VT MONDAY AFTERNOON, BUT REMAIN FAR ENOUGH NORTH TO KEEP MAJORITY OF THE AREA DRY. THIS SHORTWAVE MOVES EAST LATE IN THE DAY MONDAY, ALLOWING FOR RIDGING AT THE SURFACE AND ALOFT TO BUILD FIRMLY IN PLACE MONDAY NIGHT AND TUESDAY. EXPECT DRY CONDITIONS AND CLEARING SKIES. TEMPERATURES WILL SEE A GRADUAL WARMING TREND THROUGHOUT THE PERIOD WITH TONIGHTS MINS IN THE MID 50S TO MID 60S AS SOME CLOUDS REMAIN. MONDAY NIGHT WILL SEE SIMILAR TEMPERATURES WITH CLEAR SKIES. MAX TEMPERATURES WILL BE IN THE UPPER 70S TO MID 80S AND A DEGREE OR TWO WARMER ON TUESDAY. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... AS OF 414 AM EDT SUNDAY...A RIDGE OF HIGH PRESSURE AT THE SURFACE AND ALOFT WILL BE OVER THE REGION THROUGH THE PERIOD...WITH MAX TEMPERATURES ABOVE NORMAL THROUGH THE PERIOD. THE NORMAL MAX TEMPERATURES FOR THIS TIME OF YEAR ARE IN THE MID TO UPPER 70S. MAX TEMPERATURES THROUGH THIS COMING WEEK WILL BE MAINLY IN THE MID TO UPPER 80S. EXPECTING A MAINLY DRY FORECAST THROUGH THE PERIOD. ECMWF AND GFS MODELS SHOW SOME MINOR DIFFERENCES THROUGH THE PERIOD. GFS MODEL HINTS AT SOME CONVECTION ON WEDNESDAY WITH A WEAK SHORTWAVE MOVING SOUTHEAST FROM CANADA. HOWEVER...ECMWF HAS A DRY FORECAST FOR WEDNESDAY...SO HAVE STAYED WITH A DRY FORECAST FOR WEDNESDAY. ON THURSDAY...ECMWF AND GFS HINT AT SOME CONVECTION AS A WEAK SHORTWAVE MOVES THROUGH THE REGION. HAVE GONE WITH JUST SLIGHT CHANCE POPS (20 PERCENT) FOR SHOWERS AND THUNDERSTORMS ON THURSDAY...BUT MOST OF THE AREA SHOULD REMAIN DRY ON THURSDAY. ECMWF AND GFS MODELS HINT AT SOME CONVECTION ON FRIDAY...BUT NOT BUYING THIS AS BOTH MODELS SHOWING BUILDING HEIGHTS AT 500 MB ON FRIDAY...AND FLOW ALOFT IS PRETTY WEAK...GIVEN THAT JET STREAM IS WELL NORTH OF THE REGION ACROSS CANADA. THUS...HAVE A DRY FORECAST FOR FRIDAY AND SATURDAY. && .AVIATION /12Z SUNDAY THROUGH THURSDAY/... THROUGH 12Z MONDAY...VFR CONDITIONS EXPECTED THROUGH THE PERIOD. A WEAK RIDGE OF HIGH PRESSURE WILL BE OVER THE REGION THROUGH THE PERIOD. SATELLITE LOOP THIS MORNING SHOWING A DECK OF MID LEVEL CLOUDINESS ACROSS THE REGION. EXPECTING CEILINGS TO BE MAINLY ABOVE 10000 FEET. SURFACE WINDS WILL BE 10 KNOTS OR LESS. OUTLOOK 12Z MONDAY THROUGH THURSDAY... 12Z MON-00Z TUE...VFR. 00Z TUE-THURSDAY...VFR. PERIODS EARLY MORNING VLIFR/IFR MAINLY AT KMPV AND KSLK. SLIGHT CHANCE FOR SHOWERS AND THUNDERSTORMS ON THURSDAY. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...NONE. NY...NONE. && $$ SYNOPSIS...KGM NEAR TERM...KGM SHORT TERM...KGM LONG TERM...WGH AVIATION...WGH/HANSON

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.