333
FXUS61 KBTV 160646
AFDBTV

Area Forecast Discussion
National Weather Service Burlington VT
246 AM EDT Wed Jul 16 2025

.SYNOPSIS...
High pressure and sunshine will remain in place today, though
wildfire smoke will likely keep conditions hazy. The heat and
humidity continue through tomorrow, but a cold front will finally
put an end to it tomorrow night. The front will cause scattered
showers and thunderstorms tonight and tomorrow.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 241 AM EDT Wednesday...A warm and humid night is continuing but
with calm winds and clear skies, temperatures have been able to drop
back slightly more than forecast. While most areas are in the 60s to
around 70, the coldest hollows have been able to fall back into the
upper 50s. Ridging will continue through today and keep conditions
dry, though it will also keep very little flow around. This lack of
flow has been helping the wildfire smoke linger and the newer
guidance now keeps it in place for much of the day. With plenty of
sunshine and the warmest part of the airmass overhead, today will be
the hottest day of the week. Highs will be in the mid 80s to mid
90s, and with high humidity, heat index values will generally range
between the upper 80s and upper 90s. A prefrontal trough moves
through tonight and early tomorrow morning, bringing a round of
showers. As a surface low and its associated frontal system
approach, flow will increase and it should be able to advect out the
wildfire smoke. The nocturnal passage of the trough should prevent
any severe risk, but with flow still being on the slower side, the
flash flood potential cannot be completely ruled out.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY/...
As of 241 AM EDT Wednesday...The timing of the cold front continues
to speed up, with its passage now likely tomorrow afternoon and
evening. A few lingering clouds and showers from the prefrontal
trough are likely tomorrow morning, before some clearing looks to
occur in the afternoon. The earlier passage will likely increase the
severe risk a little, as it now passes around peak diurnal heating
in many areas. HREF mean surface CAPE is slightly above 1,000 J and
mean 0-6 KM shear is generally between 25-30 KTs. The frontal
passage and close proximity to the surface low will provide decent
synoptic forcing, and CAMs are starting to show a broken line
passing through tomorrow afternoon. Ingredients will be in place for
heavy rainfall with high PWATs and a large warm cloud depth. Storm
motion could be on the slower side but the storms generally look to
move fast enough to prevent much of a flash flooding risk, but it
still cannot be ruled out. There looks to be a brief window of gusty
synoptic winds around the time of the frontal passage tomorrow
afternoon and evening, particularly over parts of northern New York.
With efficient mixing during this time, gusts between 20-30 mph look
possible. Behind the front, there is finally a significant airmass
change. Dew points drop rapidly Thursday night and much cooler air
advects into the region. Highs on Friday will be in the 70s and dew
points will be in the 50s for most places, though dew points will
even fall into the upper 40s in a few areas.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
As of 241 AM EDT Wednesday...We`ll start out the weekend with
beautiful weather as high pressure settles over the region. Highs
will be near or just a bit above normal for mid July, and dewpoints
will remain comfortably in the 50s. Precipitation chances increase
for Sunday however; an upper shortwave trough will scoot through
zonal flow aloft while a frontal system pushes eastward through the
Great Lakes. Don`t anticipate a complete washout though, and a warm
layer at mid levels should limit thunder potential. The system will
remain pretty progressive and exit to our east fairly quickly,
allowing high pressure to take hold again for the start of the work
week. Temperatures will stay close to normal next week, though there
are some indications we could start to see another warming trend
toward midweek.

&&

.AVIATION /07Z WEDNESDAY THROUGH SUNDAY/...
Through 06z Thursday...Most terminals to remain VFR through the
period. The exception will be localized IFR in patchy fog
06z-12z. KSLK has already seen IFR/LIFR conditions early this
morning, and KMPV/KEFK may also occasionally drop to IFR in fog.
Otherwise, some slight visibility reductions in haze are
possible through 18z Wed; no significant weather expected
thereafter. Skies will remain FEW-SCT AOA 5000 ft outside of any
fog. Light and variable winds through 14z Wed, mainly terrain-
driven, will trend toward south 5 to 10 kt thereafter.

Outlook...

Thursday: VFR. Likely SHRA, Chance TSRA.
Thursday Night: Mainly VFR, with areas MVFR possible. Chance
SHRA, Slight chance TSRA.
Friday: Mainly VFR, with local MVFR possible. NO SIG WX.
Friday Night: VFR. NO SIG WX.
Saturday: VFR. NO SIG WX.
Saturday Night: VFR. Chance SHRA.
Sunday: Mainly VFR, with local MVFR possible. Chance SHRA, Slight
chance TSRA.

&&

.CLIMATE...
The current forecast highs for Tuesday and especially Wednesday
will be within a few degrees of daily record highs, which are
listed below.

July 16:
KBTV: 96/2018
KMPV: 92/1969
KPBG: 95/1969
KMSS: 94/2018
KSLK: 90/1997

&&

.BTV WATCHES/WARNINGS/ADVISORIES...
VT...Heat Advisory from noon today to 8 PM EDT this evening for
     VTZ001-002-005-009-021.
NY...Heat Advisory from noon today to 8 PM EDT this evening for
     NYZ026>028-035-087.

&&

$$
SYNOPSIS...Myskowski
NEAR TERM...Myskowski
SHORT TERM...Myskowski
LONG TERM...Hastings
AVIATION...Hastings
CLIMATE...WFO BTV