069
FXUS61 KBTV 281423
AFDBTV
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BURLINGTON VT
1023 AM EDT SAT JUN 28 2025
SYNOPSIS
SEVERAL ROUNDS OF SHOWERS WITH EMBEDDED THUNDERSTORMS WILL BE
POSSIBLE THROUGHOUT THE DAY TODAY. A COLD FRONT WILL SWING THROUGH
THE REGION THIS AFTERNOON AND EVENING WHICH WILL BRING AN END TO OUR
RAIN CHANCES WITH INCREASING SUNSHINE AND SEASONAL WEATHER EXPECTED
ON SUNDAY. A SIGNIFICANT WARM UP IS EXPECTED MONDAY AS HIGHS CLIMB
INTO THE MID 80S TO LOWER 90S BUT THESE TEMPERATURES WILL BE SHORT-
LIVED AS ANOTHER COLD FRONT MOVES THROUGH THE REGION ON TUESDAY.
SEVERAL ROUND OF RAIN AND THUNDERSTORMS WILL BE POSSIBLE LATE MONDAY
AND AGAIN ON TUESDAY.
NEAR TERM /THROUGH SUNDAY/
AS OF 1018 AM EDT SATURDAY...BREEZY CONDITIONS CONTINUE WHILE
SHOWERS STREAM THROUGH THE NORTHERN HALF OF OUR FORECAST AREA.
MOST SHOWERS HAVE BEEN LIGHT TO MODERATE, BUT THERE IS ONE
THUNDERSTORM WITH HEAVY RAINFALL SHIFTING EAST-NORTHEAST FROM
PLATTSBURGH TOWARDS ST. ALBANS RIGHT NOW. COVERAGE OF SHOWERS
WILL WANE AS THIS SURGE OF MOISTURE PULLS AWAY AS WARMER AIR
ASSOCIATED WITH A FRONTAL BOUNDARY TRANSLATES NORTHEAST. ALL IS
ON TRACK FOR A COLD FRONT WITH THE POTENTIAL FOR A LATE
CONVECTIVE SHOW AROUND 5 PM TO 9 PM. HOWEVER, MUCH OF THE REGION
APPEARS LIKELY TO BE CAPPED. HOWEVER, THERE WILL BE SOME
DYNAMICS. MOSTLY GARDEN VARIETY STORMS WILL BE POSSIBLE, BUT WE
WILL STILL KEEP A CLOSE EYE ON ACTIVITY IN SOUTHERN VERMONT.
EXCERPT OF PREVIOUS DISCUSSION...THE LATEST SURFACE ANALYSIS
SHOWS THAT THE MAIN WARM FRONT REMAINS SOUTH OF THE REGION AND
WILL CONTINUE TO LIFT NORTH AS WE HEAD INTO THE AFTERNOON HOURS
BEFORE A COLD FRONT SWEEPS THROUGH THE REGION. THE LATEST
GUIDANCE SHOWS THIS WARM FRONT LIFTING AS FAR NORTH AS ADDISON
AND ORANGE COUNTIES BEFORE THE COLD FRONT OVERTAKES IT BY MID-
AFTERNOON. A NARROW WARM SECTOR WILL DEVELOP ACROSS THE SOUTHERN
HALF OF VERMONT AND MAYBE INTO THE NORTHERN ADIRONDACKS
DEPENDING ON FRONTAL TIMING WHICH MAY GIVE WAY TO A FEW STRONGER
THUNDERSTORMS THIS AFTERNOON. ANY THUNDERSTORMS THIS AFTERNOON
WILL BE HEAVY RAINERS AS THEY WILL BE IN AN ENVIRONMENT
HIGHLIGHTED BY HIGH PWATS AND DEEP WARM CLOUD DEPTHS BUT THE
PROGRESSIVE NATURE OF THE COLD FRONT WILL QUICKLY PUSH STORMS
EASTWARD WITH LITTLE TO NO CHANCES OF TRAINING THUNDERSTORMS. AN
ABRUPT END TO RAINFALL IS EXPECTED THIS EVENING BEHIND THE COLD
FRONT. GIVEN THE LATEST GUIDANCE, RAINFALL AMOUNTS HAVE BEEN
LOWERED FURTHER WHICH CONTINUES TO DIMINISH ANY FLOOD THREAT
ACROSS THE REGION.
SUNDAY WILL BE A MUCH NICER DAY ACROSS THE REGION AS SURFACE HIGH
PRESSURE BUILD ACROSS THE NORTHEAST WITH SOME MINOR MID-LEVEL HEIGHT
RISES. IT'LL LIKELY TAKE SOME TIME TO SCOUR OUT THE LOW LEVEL
MOISTURE SUNDAY MORNING SO WE'LL START OFF CLOUDY BUT WE SHOULDN'T
HAVE ANY PROBLEMS BREAKING OUT INTO SUNSHINE SUNDAY AFTERNOON. HIGH
TEMPERATURES WILL BE AROUND SEASONAL NORMALS WITH HIGHS IN THE MID
70S TO LOWER 80S WITH COMFORTABLE DEWPOINTS AND LIGHT WINDS.
SHORT TERM /SUNDAY NIGHT THROUGH MONDAY/
AS OF 215 AM EDT SATURDAY...WE ARE LOOKING AT A PRETTY QUIET PERIOD
OF WEATHER OVERALL SUNDAY NIGHT INTO MONDAY WITH THE MAIN FOCUS
BEING THE ABOVE NORMAL TEMPERATURES EXPECTED ON MONDAY. THE LATEST
ENSEMBLE GUIDANCE CONTINUES TO SUGGEST THAT THE WIDER VALLEYS ACROSS
THE NORTH COUNTRY WILL EASILY CLIMB INTO THE LOWER 90S WITH OTHER
LOCATIONS WARMING INTO THE MID TO UPPER 80S. HEAT INDICES DON'T LOOK
ALL THAT IMPRESSIVE GIVEN DEWPOINTS IN THE LOWER 60S SO WE LIKELY
WON'T NEED ANY HEAT HEADLINES. NEVERTHELESS, IT'S ALWAYS GOOD TO
TAKE PRECAUTIONS WHEN IT'LL BE AS WARM AS FORECASTED BY TAKING
BREAKS AND DRINKING PLENTY OF FLUIDS. RAIN CHANCES WILL INCREASE
AFTER SUNSET ON MONDAY BUT THAT WILL BE DISCUSSED IN THE SECTION
BELOW.
LONG TERM /MONDAY NIGHT THROUGH FRIDAY/
AS OF 957 PM EDT FRIDAY...MODELS IN GOOD AGREEMENT THAT A WARM
AND HUMID NIGHT WILL FOLLOW MONDAY'S HOT DAYTIME TEMPERATURES.
LOW-LEVEL WINDS WILL REMAIN OUT OF THE SOUTH MONDAY NIGHT IN
ADVANCE OF ROBUST SHORTWAVE EXPECTED TO BE TRANSLATING EWD
ACROSS THE CENTRAL GREAT LAKES. THIS SHOULD ALLOW FOR OVERNIGHT
LOWS NEAR 70F IN THE CHAMPLAIN AND ST. LAWRENCE VALLEYS, AND
GENERALLY MID-UPPER 60S ELSEWHERE ACROSS THE NORTH COUNTRY. IT
APPEARS THAT 700-500MB HEIGHT FALLS AND ONSET OF CYCLONIC MID-
LEVEL FLOW WILL OCCUR BETWEEN 06-12Z TUESDAY, AND THEREFORE KEPT
THE IDEA OF SCATTERED TO NUMEROUS SHOWERS ACROSS THE REGION
TOWARD DAYBREAK.
DURING THE DAYLIGHT HOURS TUESDAY, MAY SEE AN EARLY ROUND OF
SHOWER ACTIVITY FOLLOWED BY ADDITIONAL SHOWERS AND THUNDERSTORMS
AS MID-LEVEL TROUGH AND ASSOCIATED COLD FRONT CROSS THE REGION
FROM W-E DURING TUESDAY AFTERNOON. INCLUDED A CHANCE OF
THUNDERSTORMS, WITH HIGHEST CHANCES IN THE AFTERNOON/EARLY
EVENING TIME FRAME ON TUESDAY. SHOULD SEE PBL DEWPOINTS CLIMB
TO THE UPPER 60S TO LOWER 70S IN ADVANCE OF APPROACHING COLD
FRONT, AND STUCK WITH THESE VALUES SHOWN IN LATEST NBM. IF SOME
BREAKS OF SUN OCCUR BETWEEN THE TWO ROUNDS OF PRECIPITATION,
EXPECT TO SEE MAX TEMPERATURES IN THE MID- UPPER 80S. WILL NEED
TO WATCH FOR POTENTIAL STRONG TO LOCALLY SEVERE THUNDERSTORMS ON
TUESDAY, AS SFC-6KM SHEAR IS POTENTIALLY 35-40KT WITH MODERATELY
STRONG FORCING AND POTENTIAL FOR MODERATE SBCAPE. WILL ALSO NEED
TO WATCH FOR LOCALLY HEAVY RAINFALL, WITH LATEST GFS INDICATING
HIGH PWATS IN THE 1.7-1.9" RANGE TUESDAY AFTERNOON.
BEHIND THE COLD FRONT, TEMPERATURES WILL GRADUALLY SETTLE BACK
CLOSER TO SEASONAL NORMS FOR EARLY JULY WITH LOWER CHANCES FOR
DIURNALLY DRIVEN SHOWER ACTIVITY. HIGHS GENERALLY LOWER 80S IN
VALLEY LOCATIONS WEDNESDAY AND THURSDAY, WITH MORE MODEST
DEWPOINTS IN THE UPPER 50S TO LOWER 60S EXPECTED. A NORTHERN
STREAM TROUGH AND SECONDARY COLD FRONT MAY SHIFT THROUGH OUR
REGION THURSDAY AND THURSDAY NIGHT, ALLOWING FOR COOLER
INDEPENDENCE DAY CONDITIONS WITH HIGHS IN THE MID-UPPER 70S
BASED ON CURRENT INDICATIONS. CHANCES FOR SHOWERS THURSDAY AND
FRIDAY CURRENTLY AROUND 30 PERCENT.
AVIATION /14Z SATURDAY THROUGH WEDNESDAY/
THROUGH 12Z SUNDAY...VFR CONDITIONS TO START THE PERIOD WITH
THE EXCEPTION AT KSLK AND KRUT WHICH CURRENTLY HAVE MVFR
CEILINGS. RAIN SHOWERS WILL TRACK ACROSS REGION OVER THE NEXT
FEW HOURS WITH SOME HEAVIER SHOWERS BRIEFLY REDUCING
VISIBILITIES TO MVFR. WINDS WILL BE THE MAIN TERMINAL IMPACT
WITH SOUTH WINDS 10-15 KNOTS AND GUSTS TO NEAR 20 KNOTS AT ALL
SITES, WITH LOCALLY HIGHER GUSTS AT BTV/PBG OF 35 KNOTS. WINDS
WILL DECREASE AFTER 00Z. LLWS IS EXPECTED AT ALL SITES EXCEPT
KBTV THROUGH 15Z. MODEL GUIDANCE SUGGESTS CEILINGS WILL TREND
TOWARDS MVFR AT ALL SITES FROM RAIN SHOWERS WITH SOME GUIDANCE
CONTINUING TO SUGGEST NEAR OR AT IFR CEILINGS BELOW 1000 FT AGL
AT MPV/EFK/SLK BY 18Z. GIVEN THE TIME OF YEAR, CONFIDENCE IS LOW
IN ACHIEVING IFR CEILINGS, SO CONTINUED TREND OF CEILINGS ONLY
TO 1000-2000 FT AGL FOR THIS AFTERNOON. THESE LOW CEILINGS WILL
BE ASSOCIATED WITH PERIODIC SHOWERS AND POSSIBLY AN EMBEDDED
THUNDERSTORM, PARTICULARLY BETWEEN 16-21Z. CEILINGS WILL IMPROVE
TOWARDS VFR AT MSS/SLK AND THEN EASTWARD BEYOND 22Z.
OUTLOOK...
SUNDAY: VFR. NO SIG WX.
SUNDAY NIGHT: VFR. NO SIG WX.
MONDAY: VFR. NO SIG WX.
MONDAY NIGHT: VFR. CHANCE SHRA, SLIGHT CHANCE TSRA.
TUESDAY: MAINLY VFR, WITH AREAS MVFR POSSIBLE. LIKELY SHRA,
SLIGHT CHANCE TSRA.
TUESDAY NIGHT: MAINLY VFR, WITH LOCAL MVFR POSSIBLE. NO SIG WX.
WEDNESDAY: VFR. SLIGHT CHANCE SHRA, SLIGHT CHANCE TSRA.
MARINE
A LAKE WIND ADVISORY IS IN EFFECT FOR LAKE CHAMPLAIN TODAY.
WINDS HAVE INCREASED UPWARDS OF 25 TO 35 KNOTS AND WILL
CONTINUE THROUGH THE MORNING AND EARLY AFTERNOON HOURS, WITH
EVEN HIGHER GUSTS POSSIBLE. WAVES ARE EXPECTED TO BUILD TO 3 TO
5 FEET ACROSS THE LAKE THIS MORNING. WINDS ACROSS LAKE
CHAMPLAIN WILL BEGIN TO ABATE THIS AFTERNOON BUT WILL REMAIN IN
THE 15 TO 25 KNOT RANGE WITH 2-4 FEET WAVES ACROSS THE BROAD
LAKE.
BTV WATCHES/WARNINGS/ADVISORIES
VT...NONE.
NY...NONE.
SYNOPSIS...CLAY
NEAR TERM...CLAY/HAYNES
SHORT TERM...CLAY
LONG TERM...BANACOS
AVIATION...VERASAMY
MARINE...NWS BTV
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