Expires:202004272000;;276439
FPUS51 KBTV 271038
ZFPBTV
Zone Forecast Product for Vermont
National Weather Service Burlington VT
635 AM EDT Mon Apr 27 2020
VTZ006-272000-
Lamoille-
Including the cities of Johnson and Stowe
635 AM EDT Mon Apr 27 2020
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM EDT THIS
MORNING...
.TODAY...Cloudy. Rain showers likely, mainly this morning. sleet
accumulation a dusting to 2 inches. Highs in the mid 40s.
Northeast winds 10 to 15 mph. Chance of precipitation 70 percent.
.TONIGHT...A chance of rain showers until midnight. Cloudy with a
slight chance of snow showers. Little or no additional snow
accumulation. Lows in the lower 30s. Northeast winds around
10 mph until midnight, becoming light and variable. Chance of
precipitation 40 percent.
.TUESDAY...Cloudy. A slight chance of rain or snow showers in the
morning. Highs in the upper 40s. Light and variable winds. Chance
of precipitation 20 percent.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 30s. Light and
variable winds.
.WEDNESDAY...Partly sunny. Highs in the mid 50s. Southeast winds
15 to 20 mph with gusts up to 30 mph.
.WEDNESDAY NIGHT...Cloudy with a 50 percent chance of rain
showers. Lows in the upper 30s.
.THURSDAY...Rain showers. Breezy with highs around 50. Chance of
rain 90 percent.
.THURSDAY NIGHT...Showers, breezy with lows in the mid 40s.
Chance of rain near 100 percent.
.FRIDAY...Showers. Highs in the upper 50s. Chance of rain
90 percent.
.FRIDAY NIGHT...Showers. Lows in the lower 40s. Chance of rain
80 percent.
.SATURDAY...Mostly cloudy with a 50 percent chance of showers.
Highs in the mid 50s.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of
showers. Lows around 40.
.SUNDAY...Partly sunny with a 40 percent chance of showers. Highs
in the upper 50s.
$$
Expires:202004271100;;276203
ASUS41 KBTV 271030
RWRBTV
VERMONT REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE BURLINGTON VT
600 AM EDT MON APR 27 2020
NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
* THESE REPORTS ARE NOT UNDER NWS QUALITY CONTROL AND/OR DO NOT
REPORT WEATHER SUCH AS PRECIPITATION AND FOG.
VTZ001>019-271100-
_____VERMONT_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BURLINGTON CLOUDY 41 37 86 N13 29.99S
MONTPELIER LGT RAIN 35 33 92 N6 29.98S WCI 30
MORRISVILLE CLOUDY 38 35 89 N8 29.99S
ST. JOHNSBURY* N/A 36 35 96 MISG 29.95S
LYNDONVILLE* RAIN 36 34 90 NW14 29.97S WCI 27
MIDDLEBURY* LGT RAIN 38 37 96 N8 29.96R WCI 32
RUTLAND* LGT RAIN 37 36 93 N6 29.93R
SPRINGFIELD LGT RAIN 36 33 89 N7 29.92R WCI 30
HIGHGATE* CLOUDY 43 36 77 NE8 30.04R
NEWPORT* DRIZZLE 35 35 99 N13 30.01S WCI 26
BENNINGTON CLOUDY 38 33 82 N6 29.87R
ISLAND POND* N/A 36 N/A N/A NE5 N/A WCI 32
GALLUP MILLS* N/A 34 N/A N/A MISG N/A
LAKE EDEN* N/A 36 N/A N/A NE6 N/A WCI 31
MT. MANSFIELD* N/A 30 N/A N/A SW12G29 N/A WCI 21
_____LAKE CHAMPLAIN_____
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BURTON ISLAND* N/A 43 37 81 N5G12 N/A
COLCHESTER RF* N/A 43 39 87 N16 N/A
DIAMOND ISL* N/A 43 39 87 NW23G29 N/A
$$
Expires:No;;269091
FXUS61 KBTV 270755
AFDBTV
Area Forecast Discussion
National Weather Service Burlington VT
355 AM EDT Mon Apr 27 2020
.SYNOPSIS...
A winter weather advisory is posted for the mountains through
this morning wet, accumulating snow for areas above 1000 feet in
elevation. Cool rain will continue across the valleys with rain
and snow showers slowly tapering off during the afternoon.
Mainly dry conditions in place for Tuesday, and warming to near
60 for much of the region on Wednesday. The next widespread
precipitation event arrives overnight Wednesday into Thursday.
Upper level feature lingers across the region Friday with
gradual drying into the weekend with seasonable conditions
&&
.NEAR TERM /THROUGH TUESDAY/...
As of 351 AM EDT Monday...Winter wx advisory continues for
central/northern and eastern VT and western Clinton and Essex
counties in northern NY until 15Z today. Based on the latest
forecast, generally an additional dusting to 2 inches around 1000ft-
2000ft elevation, 1 to 4 inches around 2000- 3000ft elevations, and 4
to 8 inches across Whiteface, Marcy, and Killington summits.
Widespread precipitation, excluding the St. Lawrence Valley, is
ongoing as a strong area of mid-level FGEN and deformation is
driving precipitation under the influence of a vigorous upper
shortwave. This feature is beginning to shift east and decay as
stronger forcing is beginning to develop over Maine. There will
be some fluctuations between rain and snow across the higher
terrain as forcing fluctuates with the departing dynamics. Rate
of precipitation will become more terrain driven under the
influence of 850mb winds of 40-50kts. Low-level northeasterly
flow will help to maintain greater snow coverage over the
eastern slopes of the Adirondacks of New York and southern Green
Mountains of Vermont. Fluctuations in p-type will trend towards
descending snow levels in the pre-dawn hours as upper low comes
overhead with cooling aloft. However, once day breaks, snow
levels will push back toward summit levels and precipitation
coverage will become more terrain driven. This feature will
linger across the area much of the day with additional QPF
amounts of a few hundredths for the St. Lawrence and western
Dacks and a tenth to half an inch for the rest of the area.
Highs are forecast to be in the 40s, with parts of the St.
Lawrence Valley reaching the lower 50s.
Monday night, precipitation begins to wane. Drier pocket of air
should briefly advects in overnight and may temporarily halt
precipitation overnight. However, one last strand of moisture will
advect into portions of Vermont during the day on Tuesday and bring
precipitation chances back up across eastern Vermont. High
temperatures on Tuesday should be about 2-4 degrees warmer than
Monday.
&&
.SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY/...
As of 351 AM EDT Monday...High pressure will briefly span across the
North Country, leading to mainly dry conditions. Precipitation
chances will begin to increase late in the day Wednesday as a
digging upper trough approaches from the Great Lakes region. After
partly to mostly clear skies Tuesday night, clouds will increase
through the day Wednesday as moisture is lifted northward on a
south-southeast jet out ahead of the trough. This south flow will
also bring in warmer temperatures; after overnight lows in the upper
20s to mid 30s, Wednesday will top out in the mid 50s to around 60.
South winds will increase Wednesday afternoon as daytime heating
allows the higher winds aloft to be mixed down to the surface.
&&
.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
As of 351 AM EDT Monday...Rainy conditions expected for the latter
half of the week as an occluded low will slowly move across the
Great Lakes and across New England. A long fetch of moisture will
spread north and east ahead of this feature, resulting in PWATs of 1
inch or more spreading across the North Country Thursday into Friday
ahead of the incoming occluded front. Latest model runs have slowed
the upper trough and its front even further, so have delayed the
arrival of precipitation until late Wednesday evening, with eastern
VT possibly staying dry until Thursday morning. Models are in good
agreement that a swath of rain will slowly move across the region
Thursday into Thursday night, with the front to make its way through
sometime overnight. Showery conditions will then continue through
Friday as the upper low moves directly over or just to the south of
our forecast area. There are still some timing differences, but
model consensus is converging on the bulk of the rain exiting by
Saturday morning. However, there are still discrepancies in the
models as to exactly the exact placement and magnitude of the
highest rainfall totals; 48- hr rainfall totals through Friday range
from a half of an inch to 2 inches across the area, with the highest
amounts across the higher terrain. One complicating factor will be a
strong south-southeast jet ahead of the occluded front, which could
result in less rainfall across northern portions of our forecast
area owing to downsloping off the Adirondacks and Whites.
Regardless, given the antecedent rainfall and this system's slow
movement and deep fetch of moisture, we will need to keep an eye on
area waterways, especially those in our more southern sections.
Brief ridging will follow this system's departure, so at least part
of the weekend could be dry. However, zonal flow will set up heading
into early next week, and any shortwaves embedded in this flow would
bring additional chances for showers. Temperatures through the
period will be near seasonal normals.
&&
.AVIATION /08Z MONDAY THROUGH FRIDAY/...
Through 06Z Monday...VFR at KMSS, IFR at KSLK, and MVFR across
the remainder of our terminals. Winds are out of the northeast
around 8 to 15 knots. Conditions should hold steady for the
next 4-6 hours with some LLWS at KRUT and KMPV due to easterly
winds of 40-50 knots at 2000ft agl until 10Z-12Z. Around 10Z-
12Z, precipitation will transition to a more scattered, terrain-
driven mode. This should result in a slow, but gradual improvement
in aviation conditions across all terminals with the slowest
improvement at MPV. This will persist through much of the day,
and with warming after 14Z, many go to -SHRA and lifting ceilings.
Then after 00Z, precipitation begins to shift east, lingering
longest at KMPV. Winds become more NNE and slacken to around 5
knots after 00Z.
Outlook...
Tuesday: VFR. Slight chance SHRA.
Tuesday Night: VFR. NO SIG WX.
Wednesday: VFR. Chance SHRA.
Wednesday Night: VFR. Likely SHRA.
Thursday: Mainly VFR, with areas MVFR possible. Definite SHRA.
Thursday Night: Mainly MVFR, with local VFR possible. Definite
SHRA.
Friday: Mainly MVFR, with areas VFR possible. Likely SHRA.
&&
.BTV WATCHES/WARNINGS/ADVISORIES...
VT...Winter Weather Advisory until 11 AM EDT this morning for
VTZ003-004-006>008-010-012-018-019.
NY...Winter Weather Advisory until 11 AM EDT this morning for
NYZ031-034.
&&
$$
SYNOPSIS...Haynes
NEAR TERM...Haynes
SHORT TERM...Hastings
LONG TERM...Hastings
AVIATION...Haynes
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