065
FXUS01 KWBC 260811
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EST Wed Nov 26 2025

Valid 12Z Wed Nov 26 2025 - 12Z Fri Nov 28 2025

...Deep cyclone moving through the Great Lakes is forecast to
bring blizzard conditions along the south shore of Lake Superior
today...

...Rain changing to snow with windy conditions for the remainder
of the Great Lakes with lake-effect snows lingering into
Thanksgiving holiday...

...Periods of mountain snow and low-elevation rain expected for
the Pacific Northwest through the next couple of days followed by
increasing chance of snow across Montana Friday morning...

...Well above average temperatures across much of the eastern U.S.
will give way to windy and much colder conditions heading into the
Thanksgiving holiday...

A fairly intense cyclone supported by a digging upper-level trough
is bringing the first significant snowfall of the season across
the northern tier states culminated with blizzard conditions as
cold air rushes in behind the deep storm.  This cyclone is
forecast to continue its eastward track across the Great Lakes
while expanding in size for the remainder of today into tonight.
The Snow Belt along the south shore of Lake Superior including the
Arrowhead can expect to receive well over a foot of snow, along
with blizzard conditions at the height of this storm during the
day today.  For the remainder of the Great Lakes, rain will
gradually change over to all snow by Thanksgiving morning along
with windy conditions.  More lake-effect snow bands can be
expected to impact the Snow Belt downwind from the Great Lakes on
the back side of the departing but expanding cyclone into Friday
especially the lower Great Lakes.  Meanwhile, the snow across the
upper Great Lakes will be to show signs of tapering off by Friday
morning.

Much of the eastern U.S. will wake up with another day of milder
than normal temperatures together with scattered showers and a
better chance for thunderstorms in the Southeast.  New England
will see steady rain ending this morning.  It will take the entire
day today for the cold air to reach the East Coast by tonight
behind a cold front trailing from the deep cyclone.  The front is
forecast to move out into the Atlantic on Thanksgiving Day with
clearing skies but windy and colder conditions for Thanksgiving
Day festivities.  Maine will be the last to clear out from wet
snow Thursday morning.  Polar air will plunge southward and settle
across the entire central and eastern U.S. with temperatures
falling to the freezing mark as far south as the Florida Panhandle
by Friday morning.  Nevertheless, temperatures are still milder
than normal across New England for this time of year.

In contrast, the western U.S. will remain milder than normal
through the Thanksgiving holiday.  The Pacific Northwest will
receive periods of mountain snow and low-elevation rain through
the next couple of days with a couple of Pacific systems moving
onshore.  This will be followed by an increasing chance of snow
across Montana Friday morning, with what appears to be an upslope
snow event setting up across the region under arctic high pressure
intrusion from the north and low pressure system developing over
the central High Plains.

Elsewhere, thunderstorms across southern Texas early today are
expected to gradually taper off as the cold front advances farther
southward later today.

Kong


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

$$