Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
327 PM EST Sat Jan 15 2022

Valid 00Z Sun Jan 16 2022 - 00Z Tue Jan 18 2022

...A deep low pressure system will bring widespread snow and ice as well
as strong winds up the interior eastern U.S. Sunday into Monday...

...Severe thunderstorms could impact the Florida Panhandle tonight into
Sunday morning...

...Some heavy rain, strong thunderstorms and high winds can be expected to
impact the coastal sections of the entire East Coast Sunday into Monday...

A low pressure system continues to develop this afternoon over the Deep
South.  Arctic air settling through much of the central and eastern U.S.
will work in concert with this dynamic system to bring widespread and
significant snow and ice up the Eastern Seaboard on Sunday into Monday. 
In the mean time, rain and some thunderstorms are expanding across the
Deep South to the Gulf Coast ahead of the low.  The vigorous dynamics
associated with the intensifying low are expected to trigger strong
thunderstorms, some of which could become severe, as they sweep across the
Florida Panhandle tonight into Sunday morning ahead of a strong cold
front.  Meanwhile, cold air wrapping around the north side of the low is
changing rain to snow from Arkansas eastward into the Tennessee Valley. 
This area of wintry precipitation is expected to expand and overspread the
interior eastern U.S. Sunday into Monday.  Highest snowfall totals should
be along the spine of the Appalachians as well as across the lower Great
Lakes as the storm center is forecast to track up the Piedmont sections of
the East Coast.  The most significant icing is expected over the Piedmont
section of the Carolinas on Sunday.  Farther north from the Mid-Atlantic
up through New England, precipitation is forecast to begin as snow before
changing over to ice/sleet and eventually rain with the approach of the storm
center.  As the low pressure system intensifies further, the winds are
expected to increase through much of the eastern U.S.  Near the coast, a
period of heavy rain, strong thunderstorms together with an increasing
threat of high winds can be expected to move up the entire East Coast
Sunday into Monday with the passage of the storm center.  The
precipitation should end as snow across the Mid-Atlantic early on Monday
as the storm further intensifies and heads toward New England, where
the wintry weather and strong winds will continue into Monday evening. 
Meanwhile, light snow will linger along the western slopes of the
Appalachians.

Over the northern Plains into the upper Great Lakes, a cold front dipping
into the area from southern Canada will deliver some light snow on Sunday
into Monday.  Elsewhere, relatively quiet conditions will prevail for the
remainder of the country outside of the big storm system over the East
Coast.

Kong


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