-- Discussion containing changed information from previous version are highlighted. --
540
FXUS61 KBTV 091701
AFDBTV

Area Forecast Discussion
National Weather Service Burlington VT
101 PM EDT Wed Jul 9 2025

.SYNOPSIS...
High pressure just north of the region will provide mainly quiet
weather through tonight though some isolated showers are possible.
More numerous showers and thunderstorms are likely on Thursday,
while more limited shower chances are expected for Friday and
especially Saturday followed by another round of organized showers
and thunderstorms Sunday into Monday. Temperatures will largely be
seasonably warm to hot through the period.

&&

.NEAR TERM /THROUGH TONIGHT/...
As of 249 AM EDT Wednesday...Seasonable weather is expected across
the North Country and Vermont today as weak high pressure centered
north of the region remains largely in control. After overnight low
clouds and fog scour out by midday, some high clouds will filter in,
so only partial sunshine is expected. Some weak shortwave energy
ejecting northeastward from a trough over the midwest may provide
enough upper level support to develop some isolated terrain driven
showers, but the overall probability for precipitation today is low.
Temps will be about 5 degrees warmer than yesterday pushing in the
upper 70s to low 80s, and with dewpoints holding in the low/mid 60s
it will feel slightly muggy like a normal summer day. Some
additional isolated showers remain possible tonight as well with
little overall airmass change as the trough approaches the region.
Skies should remain partly to mostly cloudy offering a warmer and
muggier night with lows ranging through the 60s.

&&

.SHORT TERM /THURSDAY THROUGH FRIDAY/...
As of 249 AM EDT Wednesday...The forecast remains on track for some
showers and thunderstorms to develop Thursday as the aforementioned
trough glances the region as it lifts northeast through Quebec.
Soundings continue to show sufficient CAPE upwards of 1000 J/kg and
30kts of 0-6km bulk shear developing from noon through the
afternoon, but overall models show limited upper level height falls
and a fairly weak cold pool aloft supporting more of the garden
variety of thunderstorms and a low threat of severe storms. Areal
coverage of the convection remains very much in question with little
consensus amongst the CAMs, but the SPC has placed our region in a
Marginal Risk for severe storms so it`s something to keep an eye on.
The most likely threat right now would be localized pockets of heavy
rain as low level wind fields remain weak with PWATS upwards of 1.5"
and warm cloud depths around 10kft. Current 1-hour flash flood
guidance is as low as 1.5" in some areas, but overall around 2" for
the region, and with a dry day today that will likely rise a little
bit for Thursday.

Any convection on Thursday will wane into Thursday night with the
loss of diurnal heating with mainly dry conditions returning for
Friday as an upper level ridge approaches. A warming trends
continues into Friday with widespread low/mid 80s expected.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
As of 249 AM EDT Wednesday...Generally a low-impact but unsettled
weather pattern in the long- term is expected. Above average heat
from a short ridge Saturday into Sunday will help to drive heat
index values towards heat advisory criteria. Probabilities of
exceeding heat advisory conditions of 95 or higher will peak on
Sunday with the approach of a large scale frontal passage. Shower
and thunderstorm chances in the long term will be most likely Sunday
afternoon with only a marginal change in air mass behind the
boundary. As a result, seasonable heat and humidity looks to persist
into early next week.

&&

.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
-- Changed Discussion --
Through 18Z Wednesday...Aviation challenge will be areal
coverage of potential fog/low clouds at EFK/MPV and SLK. Current
GOES-19 vis satl imagery shows plenty of mid/upper level clouds
moving into our region, while some instability cumulus clouds
have developed over the terrain. High clouds could limit the
areal coverage of fog/br tonight. Have utilized tempo groups
between 08-12z at SLK/EFK to highlight a 30 to 40% confidence in
IFR or lower vis/cigs in fog/br. Meanwhile, sounding data at
MPV suggests the potential for IFR or lower stratus deck
developing on east/southeast flow, so have tempo MPV with
IFR/LIFR cigs and IFR vis between 08-12z. Outside of lower
cigs/vis on Thurs morning, mostly VFR conditions prevail at our
taf sites with light terrain or lake induced winds of 3 to 7
knots.

Outlook...

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

&&

.BTV WATCHES/WARNINGS/ADVISORIES...
VT...None.
NY...None.

&&

$$
SYNOPSIS...Lahiff
NEAR TERM...Lahiff
SHORT TERM...Lahiff
LONG TERM...Danzig
AVIATION...Taber