136
FXUS01 KWBC 080759
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
258 AM EST Mon Dec 08 2025

Valid 12Z Mon Dec 08 2025 - 12Z Wed Dec 10 2025

...Atmospheric river to usher in several days of heavy rain into
the Pacific Northwest...

...Heavy snowfall expected in south-central Virginia today...

The forecast remains on track for a prolonged atmospheric river to
usher in several days of heavy rainfall over the Pacific
Northwest. Beginning this morning, rainfall coverage and intensity
is expected to increase across coastal Washington and Oregon as a
potent slug of sub-tropical moisture begins to flow inland along a
strong Pacific jet. Isolated to scattered instances of flash
flooding are possible with this activity through midweek, where a
slew of Flood Watches are in effect. Rainfall aside, parts of the
Pacific Northwest, Northern Rockies, and Northern Plains and can
also expect a period of gusty winds today and Tuesday as the same
Pacific jet develops a strong clipper system in the Canadian
Rockies. As this clipper system ejects eastward into the Northern
Plains and Upper Midwest late Tuesday, wintry weather should
develop along the northern flank of the low center. While there
remains uncertainty in forecast amounts, at least a few inches of
snowfall and freezing rain are possible roughly along a Fargo to
Grand Rapids line. A Winter Storm Watch is now in effect over
portions of eastern North Dakota and western Minnesota, so stay
tuned as the forecast evolves.

Speaking of wintry weather, snowfall amounts over the central
Appalachians and southern Mid-Atlantic have notably trended upward
compared to yesterday`s forecast. A Winter Storm Warning is now in
effect over portions of south-central Virginia (including the
Richmond metro) for 3-5 inches of snowfall through this evening.
Adjacent areas in the Appalachians and southern Mid-Atlantic
should see 1-2 inches of snowfall, where Winter Weather Advisories
are posted.

Asherman


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

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