Area Forecast Discussion
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FXUS61 KBTV 282001
Area Forecast Discussion
National Weather Service Burlington VT
401 PM EDT Tue Mar 28 2017
A cold front will move through the north country overnight
with a chance of rain or snow showers. There will be a slight
chance for rain and snow showers on Wednesday, mainly over the
high elevations of the Adirondacks and Green Mountains. A ridge
of high pressure will build into the region on Thursday with
mostly sunny skies expected. A low pressure area moving east
across the Ohio valley will bring rain and snow to the north
country Friday and Saturday.
.NEAR TERM /THROUGH WEDNESDAY/...
As of 400 PM EDT Tuesday...An upper shortwave moving through
the region in the northern stream will bring a chance of rain or
snow showers until midnight tonight. Another upper shortwave
over the mid Atlantic states will bring some rain or snow
showers until midnight across southern Vermont until midnight.
Cloud cover will help to keep temperatures up overnight with
lows mainly in the 30s, except in the 20s over the higher
elevations. The region will be under cold advection on
Wednesday. expecting a slight chance for some rain or snow
showers on Wednesday, mainly over the higher elevations of the
Adirondacks and Green Mountains.
.SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/...
As of 400 PM EDT Tuesday...Any residual rain or snow showers
should come to an end early Wednesday night. A ridge of high
pressure will build south from Canada late Wednesday night and
will remain over the region through Thursday night. expecting
mostly sunny skies on Thursday. A warm front will approach the
region well after midnight Thursday night, so will have a chance
of snow light snow late Thursday Night and approaching daybreak
.LONG TERM /FRIDAY THROUGH TUESDAY/...
As of 345 PM EDT Tuesday...Snow expected to spread from north
to south across the North Country on Friday with warming
temperatures during the day in southerly flow changing snow to
mostly snow. Some enhancement of QPF on eastern slopes expected
with shadowing effects on leeward slopes and valleys. Heading
into Friday night/Saturday morning, warmer air aloft will result
in wintry mix starting over Northern NY and spreading eastward
into the Champlain Valley in the middle of the night. Northeast
Kingdom has best chance of remaining snow through Saturday
morning. Winds shift out of the north on Saturday as the main
coastal low pulls east and northern stream shortwave that
provided lift for wintry mix will move out of the area with
generally drying conditions Saturday into Sunday. NW upslope
precip possible through Sunday before surface high pressure
becomes the dominant feature through Tuesday.
.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
Through 18Z Wednesday...Highly variable flight conditions with
scattered rain showers continue through the evening as a cold
front shifts into the region. VFR conditions over Vermont TAF
sites will deteriorate to MVFR this afternoon and evening with
brief period of IFR vsbys possible mainly in the afternoon. MVFR
conditions at KPBG will persist through Wednesday morning.
Further west, KMSS & KSLK continue to have LIFR conditions to
VLIFR possible, then gradually improving early to mid Wednesday
morning. Areas of fog development possible tonight, with MVFR-
IFR vsbys. Generally expect all terminals to see improvement on
Outlook 18Z Wednesday through Sunday...
18Z Wednesday through 00Z Thursday...MVFR/IFR in scattered
scattered rain/snow showers, mainly across central/northern
00Z Thursday through 12Z Thursday...Mainly VFR. Isolated snow
showers over higher terrain.
12Z Thursday through 12Z Friday...VFR under high pressure.
12Z Friday through 06Z Sunday...Areas of MVFR/IFR in rain and
06Z Sunday onward...VFR conditions under building high pressure.