Expires:202011212100;;167163
FPUS51 KBTV 211122
ZFPBTV
Zone Forecast Product for Vermont
National Weather Service Burlington VT
619 AM EST Sat Nov 21 2020
VTZ006-212100-
Lamoille-
Including the cities of Johnson and Stowe
619 AM EST Sat Nov 21 2020
.TODAY...Partly sunny. Highs in the lower 40s. Temperature
falling into the lower 30s this afternoon. Northwest winds 10 to
15 mph.
.TONIGHT...Partly cloudy until midnight, then clearing. Lows
around 18. Northwest winds around 10 mph until midnight, becoming
light and variable.
.SUNDAY...Mostly sunny in the morning, then mostly cloudy with a
chance of snow in the afternoon. Little or no snow accumulation.
Highs in the lower 30s. Light and variable winds, becoming
southeast around 10 mph in the afternoon. Chance of snow
40 percent.
.SUNDAY NIGHT...Snow or rain or freezing rain or sleet. Light
snow accumulation. Breezy with lows in the upper 20s. Southeast
winds 20 to 25 mph. Chance of precipitation 90 percent.
.MONDAY...Rain or a chance of snow showers. Little or no
additional snow accumulation. Breezy with highs in the upper 30s.
Southwest winds 20 to 25 mph. Chance of precipitation 90 percent.
.MONDAY NIGHT...Mostly cloudy. Lows in the lower 20s.
.TUESDAY...Partly sunny. Highs in the upper 20s.
.TUESDAY NIGHT...Mostly cloudy. Lows around 20.
.WEDNESDAY...Cloudy with a chance of snow or rain. Highs around
40. Chance of precipitation 50 percent.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain or snow.
Lows in the lower 30s. Chance of precipitation 50 percent.
.THANKSGIVING DAY...Partly sunny. Highs in the lower 40s.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 20s.
.FRIDAY...Mostly cloudy. Highs in the lower 40s.
$$
Expires:202011211200;;167626
ASUS41 KBTV 211130
RWRBTV
VERMONT REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE BURLINGTON VT
600 AM EST SAT NOV 21 2020
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE REPORTS ARE NOT UNDER NWS QUALITY CONTROL AND/OR DO NOT
REPORT WEATHER SUCH AS PRECIPITATION AND FOG.
VTZ001>019-211200-
_____VERMONT_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BURLINGTON CLEAR 48 33 56 NW14G24 30.25R
MONTPELIER PTCLDY 45 37 73 NW9 30.23R
MORRISVILLE CLOUDY 48 35 60 VRB5 30.23R
LYNDONVILLE* FAIR 44 33 66 W3 30.22R
MIDDLEBURY* CLOUDY 41 37 83 CALM 30.25R
RUTLAND* PTCLDY 50 37 61 VRB7 30.24R
SPRINGFIELD PTCLDY 28 26 92 CALM 30.21R
HIGHGATE* CLOUDY 47 33 59 W3 30.26R
NEWPORT* CLOUDY 45 32 61 NW12G17 30.22R
BENNINGTON MOCLDY 51 38 60 VRB6 30.27R
ISLAND POND* N/A 43 N/A N/A W1 N/A
GALLUP MILLS* N/A 41 N/A N/A MISG N/A
LAKE EDEN* N/A 45 N/A N/A SW5 N/A
MT. MANSFIELD* N/A 34 N/A N/A W36 N/A WCI 19
_____LAKE CHAMPLAIN_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BURTON ISLAND* N/A 48 37 66 W17G23 N/A
COLCHESTER RF* N/A 48 34 57 NW15 N/A
DIAMOND ISL* N/A 52 36 54 N13 N/A
$$
Expires:No;;162507
FXUS61 KBTV 210919
AFDBTV
Area Forecast Discussion
National Weather Service Burlington VT
419 AM EST Sat Nov 21 2020
.SYNOPSIS...
A relatively non-eventful cold front will continue to push
through the North Country today. This front will bring mainly an
increase in cloudiness with isolated drizzle or flurries
possible. Our next system arrives late Sunday through Monday
bringing the possibility of rain, snow, sleet and freezing rain
to the region. Near normal temperatures are expected through
much of next week. The active pattern continues with chances for
another storm system to arrive by midweek.
&&
.NEAR TERM /THROUGH SUNDAY/...
As of 416 AM EST Saturday...Today will feature increasingly cloudy
skies as a weak cold front moves through the North Country. Still
continuing with the idea that a few sprinkles/flurries may be
possible, mainly across the west/northwestern slopes of the
Adirondacks. No accumulations are expected, with a most a dusting
expected. Highs today will be near seasonable in the upper 30s
mountains/low to mid 40s elsewhere under generally light SW/W winds
this morning switching to the NW late this afternoon. Surface high
pressure quickly moves in overnight, with clear skies expected.
Overnight lows should dip into the mid teens/low 20s across the
area. With fast zonal flow remaining aloft, high pressure scoots
rapidly to the east by tomorrow afternoon as our next system
approaches from the west. Surface winds begin to shift out of the
E/SE under increasingly cloudy skies. Precipitation is expected to
move into the southwestern corridor of the St Lawrence valley
towards 21z and spread eastward into VT towards 00z. Precipitation
should initially fall as a mix of rain/snow but enough thermal
cooling should take place give good dynamical forcing that it should
change over to snow across the St Lawrence Valley. A mix of light
rain/snow is expected across south/central VT depending on
elevation. Accumulations will be generally light during this
timeframe with 0.5-1" across northern New York and a dusting to 0.5"
for mainly the spine of the Greens and hills of central VT.
&&
.SHORT TERM /SUNDAY NIGHT THROUGH MONDAY NIGHT/...
As of 416 AM EST Saturday...An active period of weather for the
beginning of the week. Deepening low pressure will move from the
Ohio River Valley northeastward, tracking along or just south of the
St Lawrence Valley. Warm air will stream northward on a strong south
jet, riding up and over colder air at the surface, resulting in a
wintry mix of precipitation for much of the North Country. As
always, the question is how long before the warmer air wins out over
the colder air at ground level? There are still some differences in
models as to exactly where the low tracks and the extent of the warm
air, making for an even tricker forecast. The Champlain Valley will
warm fastest as south winds will funnel the warm air northward.
Hence expect just a short period of snow/sleet/freezing rain with
little accumulation before the change over to rain occurs, roughly
around midnight. In northern NY, the St Lawrence Valley will hold
onto the wintry precipitation longest as northeast surface winds
look to hold tough as often happens, especially in the northern
portions of the valley. A low track over the St Lawrence Valley
would allow more warmer air and more mix, while a track just south
of the valley would keep the valley more snow and any mixed
precipitation across the Adirondacks. Either way, these areas look
to hold onto the mixed precipitation until very early Monday
morning, perhaps past daybreak in the northern St Lawrence Valley.
Snow accumulations of 1 to 4 inches would be possible in these
areas, with ice accumulation less than a tenth of an inch. The
surface cold air will also be tough to scour out in eastern VT, so
the mixed precipitation would persist into early-mid morning Monday,
lingering longest in the cold hollows of the Northeast Kingdom. Snow
accumulation would be 2 inches or less with less than a tenth of an
inch of ice. All locations will transition to plain rain for a time
Monday with highs to be in the mid 30s to lower 40s. However, colder
air will rush into the region from west to east through the day as
the low drags its attendant cold front across the region. This will
allow rain to change back over to snow, especially over the higher
terrain. The widespread precipitation will become more terrain
focused behind the front as well as winds turn to the northwest.
These western-slope snow showers will linger into Monday night with
temperatures dropping into the teens and 20s.
&&
.LONG TERM /TUESDAY THROUGH FRIDAY/...
As of 416 AM EST Saturday...Drier weather will resume Tuesday into
Wednesday as high pressure settles over the region. Temperatures
will be colder than normal Tuesday and Tuesday night, but warming
will begin Wednesday as low pressure approaches from the west. This
low will also bring another round of precipitation, mainly late
Wednesday into Thursday. Model solutions showing a bit of
disagreement on how this low evolves, with the GFS taking it up to
our northwest, with a wintry mix of precipitation turning to rain,
much like the Sunday night-Monday event. The ECMWF and CMC meanwhile
take a weaker low from the Midwest states eastward, over or just
south of New England, perhaps developing a weak coastal low in the
Gulf of Maine. This would be more of a snow-rain event for our
region. Have stayed close to a model blend for the Wednesday night-
Friday timeframe given these differences.
&&
.AVIATION /09Z SATURDAY THROUGH WEDNESDAY/...
Through 06Z Sunday...VFR ceilings will trend MVFR overnight as
weak frontal boundary sags south out of Canada this morning.
Ceilings will trend MVFR towards 12-14z from NW to SE and will
generally be in the 2500ft range, although 1500ft ceilings are
possible at KSLK. VFR ceilings will return toward 18z through
the remainder of the period. Winds overnight will generally be
light out of the south 5 knots of less, becoming W/NW between
5-10kt after 14z.
Outlook...
Sunday: VFR. Chance RA, Chance SN.
Sunday Night: Mainly MVFR and IFR, with local VFR possible.
Definite RA, Definite FZRA, Definite PL, Likely SN.
Monday: Mainly MVFR, with local IFR possible. Definite RA, Chance
SHRA, Definite FZRA.
Monday Night: Mainly VFR, with areas MVFR possible. NO SIG WX.
Tuesday: Mainly VFR, with local MVFR possible. NO SIG WX.
Tuesday Night: VFR. Slight chance SN.
Wednesday: Mainly VFR, with areas MVFR possible. Chance RA,
Chance SN.
&&
.BTV WATCHES/WARNINGS/ADVISORIES...
VT...None.
NY...None.
&&
$$
SYNOPSIS...LaRocca
NEAR TERM...LaRocca
SHORT TERM...Hastings
LONG TERM...Hastings
AVIATION...LaRocca
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