Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
250 AM EST Wed Jan 25 2023

Valid 12Z Wed Jan 25 2023 - 12Z Fri Jan 27 2023

...Developing storm to have widespread impacts across large areas to the
east of the Mississippi River...

...Much more tranquil weather on tap for the western half of the nation...

The low pressure system lifting from the Gulf states and into the
Tennessee Valley early this morning is expected to deepen as it continues
to track northeast through the Ohio Valley and Lower Great today, then
reaching the Northeast by Thursday. This storm will be multifaceted and
have significant impacts across a large portion of the nation from the
Gulf coast into the Northeast. A well defined area of precipitation from
the Deep South, Midwest, Tennessee and Ohio Valley persisted overnight
will continue to expand northeastward with time.  Heavy rains, isolated
flash flooding and severe thunderstorms remain possible across portions of
the central Gulf coast spreading into the eastern Gulf coast and Southeast
today.  Heavy rains are also possible Wednesday into early Thursday across
the major urban corridor from Richmond, DC, Baltimore, Philadelphia, NYC
into Boston.

On the north and northwest side of this storm, heavy snows are likely from
eastern Oklahoma into northern Arkansas, southern Missouri, southern
Illinois, southern Indiana, Ohio and parts of the Northeast today and then
pushing into northern New England by early Thursday morning. A large swath
of of Winter Storm Warnings and Winter Weather Advisories span from Texas
to Maine for the widespread snowfall accumulations of 4 to 8"+, with
locations in northern New England having the potential for accumulations
of 8 to 12". The snow will be lead to moderate or major impacts from the
Plains to New England over the next couple of days with snow covered
roads, reduced visibility resulting in dangerous traveling conditions.  In
addition, the combination of the heavy snow and gusty winds may result in
downed trees and power outages. This snowfall will bring some relief from
the "snow drought" for portions of the Mid-West, northern Mid-Atlantic,
New York State and central to northern New England where snowfall totals
this season are well below average.

In contrast, much of the western U.S. will have generally mild and dry
conditions. Some light to locally moderate snowfall amounts will be
possible through the Rockies and across the Northern Plains. No signs of
any additional precipitation for water soaked area of California through
the remainder of this week.

Campbell/Oravec

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