Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
407 AM EDT Tue Apr 08 2025

Valid 12Z Tue Apr 08 2025 - 12Z Thu Apr 10 2025

...Snow expected for parts of the eastern Great Lakes, interior Northeast,
and northern New England through Tuesday night...

...Strong cold front brings much colder temperatures to the Eastern U.S....

...Unsettled weather continues across the Pacific Northwest through
Wednesday...

...Staying dry and trending much warmer than normal across the Southwest
U.S the next several days...


A potent disturbance and strong cold front will bring snow to portions of
the eastern Great Lakes, interior Northeast, and northern New England
Tuesday into Tuesday night. Overall, most of the snow that falls is
expected to be light; however, lake enhancement will ramp up the intensity
downwind of Lake Ontario over the Tug Hill Plateau, where accumulations
have the potential to exceed 6 inches locally. The snow will also become
heavier for parts of northern New England Tuesday afternoon, particularly
across northern Maine. There, moderate to borderline heavy snow at times
will likely lead to slippery road conditions and hazardous travel,
especially for the Tuesday evening commute. In total, accumulations of 4
to 8 inches with locally higher amounts are expected for much of northern
Maine by the time the snow wraps up late Tuesday night.

The same disturbance and cold front that will bring snow to parts of the
Northeast will also usher in a much colder air mass across most of the
Eastern U.S. Tuesday into Wednesday. The late season blast of chilly air
will send temperatures plummeting to well below seasonal averages. High
temperatures on Tuesday will top out roughly 10 to 30 degrees below
normal, with the coldest anomalies found in the Northeast, Mid-Atlantic,
Great Lakes, Ohio Valley, and Tennessee Valley. Temperatures won't be
quite as cool across the Southeast U.S, but even there highs will still be
around 5 to 15 degrees below normal. Tonight, low temperatures will drop
to near or below freezing for many, leading to frost and freeze concerns
in places where the growing season has already started. On Wednesday,
temperatures across the East will moderate some, climbing into the 30s,
40s, and 50s across the Northeast U.S. and the 60s and 70s across the
Southeast U.S. after a chilly start.  

A series of Pacific systems will continue to bring unsettled weather to
the Pacific Northwest and northern Rockies through Wednesday, with
scattered lower elevation rain showers and high country snow. Most of the
snow will continue to favor the Olympic Mountains and the Cascades where
several inches up to a few feet of additional accumulation is forecast.
Plentiful clouds and precipitation associated with these Pacific systems
will keep temperatures on the cooler side of normal the next couple of
days before temperatures warm up and conditions dry out starting on
Thursday. Farther east, a few of these disturbances will survive the trip
over the mountains and bring rain and/or snow showers to parts of the
Upper Midwest, Great Lakes, and Ohio Valley Wednesday into Thursday.

A developing ridge of high pressure will keep much of the Southwest U.S.
precipitation free for the next several days, with temperatures trending
much warmer than normal through at least midweek and likely beyond.
Temperature departures roughly 10 to 30 degrees above average will be
common, translating to highs in the 70s, 80s, and 90s, with some desert
valleys even cracking the triple digits. High temperatures may even
approach records Wednesday and especially Thursday.
  

Miller


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