Expires:202101222100;;305576
FPUS51 KBTV 221051
ZFPBTV
Zone Forecast Product for Vermont
National Weather Service Burlington VT
548 AM EST Fri Jan 22 2021
VTZ018-222100-
Eastern Addison-
Including the cities of Bristol and Ripton
548 AM EST Fri Jan 22 2021
.TODAY...A chance of snow showers this morning, then snow showers
this afternoon. Additional snow accumulation around an inch.
Highs around 30. Southwest winds around 10 mph, becoming west
with gusts up to 25 mph this afternoon. Chance of snow near
100 percent.
.TONIGHT...Mostly cloudy. Snow showers likely, mainly until
midnight. Total snow accumulation of 4 to 6 inches. Lows around
7 above. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Chance of snow 70 percent.
.SATURDAY...Mostly cloudy with a 20 percent chance of snow
showers. Blustery with highs around 11. Northwest winds 15 to
25 mph with gusts up to 40 mph.
.SATURDAY NIGHT...Partly cloudy and blustery, cold with lows
around 1 below. Northwest winds 20 to 25 mph with gusts up to
40 mph. Wind chill values as low as 24 below.
.SUNDAY...Partly sunny. Highs around 13. Northwest winds 15 to
20 mph with gusts up to 35 mph. Wind chill values as low as
23 below.
.SUNDAY NIGHT...Partly cloudy. Lows around zero.
.MONDAY...Partly sunny. Highs around 20.
.MONDAY NIGHT...Partly cloudy. Lows around 5 above.
.TUESDAY...Partly sunny. Highs around 20.
.TUESDAY NIGHT...Partly cloudy. Lows 5 to 10 above.
.WEDNESDAY...Partly sunny. Highs around 20.
.WEDNESDAY NIGHT...Partly cloudy. Lows 5 to 10 above.
.THURSDAY...Partly sunny. Highs 15 to 20.
$$
Expires:202101221200;;307682
ASUS41 KBTV 221131
RWRBTV
VERMONT REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE BURLINGTON VT
600 AM EST FRI JAN 22 2021
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE REPORTS ARE NOT UNDER NWS QUALITY CONTROL AND/OR DO NOT
REPORT WEATHER SUCH AS PRECIPITATION AND FOG.
VTZ001>019-221200-
_____VERMONT_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BURLINGTON CLOUDY 32 25 75 SW7 29.50R WCI 26
MONTPELIER CLOUDY 21 20 96 CALM 29.51S
MORRISVILLE CLOUDY 22 20 92 CALM 29.49S
ST. JOHNSBURY* N/A 20 17 88 MISG 29.50S
LYNDONVILLE* CLOUDY 21 20 94 SE3 29.50S
MIDDLEBURY* CLOUDY 31 25 77 S3 29.52R
RUTLAND* CLOUDY 31 27 85 VRB3 29.52R
SPRINGFIELD CLOUDY 21 19 92 CALM 29.55R
HIGHGATE* CLOUDY 31 25 78 S5 29.49S WCI 26
NEWPORT* FLURRIES 26 23 91 S6 29.48S WCI 19
BENNINGTON LGT SNOW 29 25 85 CALM 29.54R FOG
ISLAND POND* N/A 18 N/A N/A CALM N/A
GALLUP MILLS* N/A 18 N/A N/A MISG N/A
LAKE EDEN* N/A 21 N/A N/A S1 N/A
MT. MANSFIELD* N/A 21 N/A N/A NE26 N/A WCI 4
_____LAKE CHAMPLAIN_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
$$
Expires:No;;305590
FXUS61 KBTV 221051
AFDBTV
Area Forecast Discussion
National Weather Service Burlington VT
551 AM EST Fri Jan 22 2021
.SYNOPSIS...
A cold front will move through today, bringing some heavy snow
showers with embedded snow squalls that could make travel
difficult at times today. Conditions turn colder tonight behind
the front, and snow showers will linger through Saturday over
higher terrain of the Green Mountains and potentially into the
eastern Champlain Valley. Highs this weekend will only be in the
teens. Temperatures moderate slightly early next week, with
mainly dry conditions anticipated.
&&
.NEAR TERM /THROUGH SATURDAY/...
As of 548 AM EST Friday...Quick update this morning mainly to
adjust hourly temperatures, which have risen to at or just below
freezing for northern NY and the Champlain Valley. These temps
should remain fairly steady over the next few hours, but will
have to watch if they rise any more for potential localized
flash freeze conditions behind the front today. So far, road
surfaces still reporting temperatures below freezing, thus
limiting the flash freeze potential, but will continue to
monitor. Previous discussion follows.
Off and on light snow showers will continue over the North
Country this morning, but the main focus for the near term will
be a line of heavier convective showers/snow squalls that is
forecast to develop along an arctic frontal boundary moving
through today. These heavy snow showers with embedded snow
squalls will result in reduced visibilities to 1/2 mile at times
and a quick 1-3 inches of snow possible in heavier activity. Be
prepared for rapidly changing conditions, which may cause very
hazardous travel with poor visibility and quickly snow covered
roads.
The arctic front will move through northern NY between 8 AM and
1 PM, resulting in some convective showers, some of which may
be heavy at times. Will see additional support aloft as several
shortwaves continue to pivot through the area around an upper-
level low centered over Quebec. Conditions not looking as
favorable for snow squalls over northern NY as they are further
east over VT, given the weaker surface convergence/low-level
fgen along with weaker instability. As the boundary moves into
the Champlain Valley mid-day however, conditions for more
organized snow squalls becoming increasingly favorable. Will see
locally enhanced convergence as southerly flow funneled up the
valley converges with northerly flow behind the front. Thus,
will see the line of convective snow showers intensify from this
point on. By the time the boundary moves east of the Greens
early afternoon, lapse rates steepen notably (forecast soundings
for central and northeastern VT show dry adiabatic lapse rates
up to 600 mb), which will favor further intensification of snow
showers/snow squalls. The boundary will exit Vermont to the east
in the late afternoon/early evening hours.
Overall, while many ingredients present supporting snow squalls,
there will be some limiting factors. Notably, absence of stronger
winds along and behind the front will limit overall convergence,
along with relatively weak pressure rise/fall couplet associated
with the boundary. Thus, not a text-book event, but do think enough
support there for some weaker squalls today.
Behind the boundary, will see snow showers become increasingly tied
to higher terrain amid northwesterly flow tonight through Saturday.
Lower atmosphere becomes more blocked, which will allow snow showers
to linger notably along western slopes of the Green Mountains and
even into the eastern Champlain Valley (depending on just how
blocked the flow gets...). Snow ratios during this time will be
very high, thus a period of light and fluffy snow is expected for
these areas. Additional accumulations over the higher elevations of
the northern Greens for Friday night through Saturday will be in the
4-8 inch range, with locally higher amounts possible on summits.
Temperatures tonight and Saturday will be noticeably colder,
falling into the single digits tonight and only warming to the
mid teens at most on Saturday. Conditions will also be quite
breezy Saturday, resulting in wind chills that will hover below
zero for most of the day.
&&
.SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY/...
As of 400 AM EST Friday...Area remains in northwest flow aloft
Saturday night into Sunday. Could still see some snow showers in the
mountains over northern Vermont in the favored upslope regions, but
vertical depth of moisture should become limited on Sunday to start
to limit the threat of additional snow. Colder air will be moving
into the region with lows Saturday night in the single digits above
and below zero and highs in the teens to around 20.
&&
.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
As of 400 AM EST Friday...Overall not expecting any significant
weather in the extended forecast period...Sunday night through
Thursday. Northwest flow aloft continues Sunday night into Monday
night for dry weather and below normal temperatures. Flow aloft
backs to the west on Tuesday and our southern areas could get on the
northern fringes of clouds and precipitation. Unfortunately, data
has not been real consistent so will just mention a slight chance
for our southern areas on Tuesday. Flow aloft turns back to the
northwest on Wednesday and Thursday and this will bring drier air
back into the region. It will reinforce the below normal
temperatures as well.
&&
.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Through 06Z Friday...Spotty snow showers continue across the
area early this morning, especially over northern NY (KSLK,
KMSS, and eastward into KRUT) where a Lake Effect band is
pointed towards the Adirondacks off Lake Erie. Most of the rest
of the TAF sites will see VFR conditions continue through
tonight with an occasional reduction in flight category for a
brief snow shower or two. After daybreak, conditions looking
increasingly favorable for a convective line of moderate to
heavy snow showers moving through from west to east, starting
over the St. Lawrence Valley around 12Z, moving to the Champlain
Valley around 14Z, and then further strengthening into a snow
squall as it moves into eastern/southern VT after 16Z. Expect
IFR to LIFR visibilities within this line of heavy snow showers,
especially over VT TAF sites this afternoon. After the line goes
through, snow showers will diminish in coverage and intensity,
but some MVFR ceilings will linger through 06Z Saturday.
Winds will be light and variable tonight, becoming
Westerly/northwesterly at 5-10 knots between 14Z and 21Z as the
convective line of showers moves through.
Outlook...
Saturday: Mainly VFR, with local MVFR possible. Chance SHSN.
Saturday Night: VFR. Chance SHSN.
Sunday: VFR. NO SIG WX.
Sunday Night: VFR. NO SIG WX.
Monday: VFR. NO SIG WX.
Monday Night: VFR. NO SIG WX.
Tuesday: VFR. NO SIG WX.
&&
.BTV WATCHES/WARNINGS/ADVISORIES...
VT...None.
NY...None.
&&
$$
SYNOPSIS...Duell
NEAR TERM...Duell
SHORT TERM...Evenson
LONG TERM...Evenson
AVIATION...Duell
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