764
FXUS01 KWBC 041926
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
225 PM EST Wed Dec 04 2024

Valid 00Z Thu Dec 05 2024 - 00Z Sat Dec 07 2024

...Snow squalls, strong winds and periods of heavy snow to impact
portions of the Great Lakes to the interior Northeast/Mid-Atlantic
through Thursday...

...Arctic air plunges temperatures well below average across
Midwest on Thursday then the Gulf/East Coast on Friday...


A strong Arctic cold front will sweep across the Ohio Valley and
Mid-Atlantic tonight, then through the Northeast on Thursday. Snow
squalls along this front will be accompanied by intense bursts of
heavy snowfall and gusty winds, producing dangerous travel
conditions due to whiteouts and icy roads. Wind gusts up to 50 mph
will spread from the Northern Plains to the Great Lakes this
evening, and into the Central Appalachians, Mid-Atlantic and
Northeast by Thursday. These winds may cause power outages, down
tree branches, and result in hazardous commutes. Snowfall totals
of 1-2 feet are expected (>80%) in the lake-effect snow belts,
with up to 1 foot likely (60-80%) along the Central Appalachians
and across the higher terrain of interior New England. Heavy snow
is also possible along the Central Appalachians and across
interior New England.

A bitter cold Arctic airmass will settle over the Midwest on
Thursday, where high temperature anomalies of 20-30 degrees below
average are possible. Several low maximum temperature records are
expected along the lower Ohio River Valley and Central
Appalachians. The Arctic air then expands into the Gulf Coast and
East Coast on Friday, where highs are likely to be 10-25 degrees
below average in many areas. The West continues to experience
above average temperatures beneath a ridge of high pressure
through the weekend.


Kebede


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
$$