Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
300 AM EST Thu Jan 27 2022

Valid 12Z Thu Jan 27 2022 - 12Z Sat Jan 29 2022

...A reinforcing surge of arctic air will engulf the eastern half of the
nation during the next couple of days...

...An area of light snow is forecast to develop over the Mid-Atlantic and
central Appalachians as a large coastal storm forms rapidly off the East
Coast...

Under the influence of an arctic high pressure system, much of the eastern
U.S. will be much colder than normal today, with much of the Northeast
remaining well below freezing.  Cold conditions also extend across the
Deep South where a weakening upper-level trough tracks across the region
today.  Meanwhile, the next surge of arctic air is poised to enter the
northern U.S.  Scattered snow showers are expected to accompany the arctic
cold front as it sweeps across the Great Lakes today and into tonight. 
Blustery northwesterly winds will once again usher sub-zero temperatures
into the upper Midwest by Friday morning.  will also be responsible for 
between Thursday and Thursday night across the Great Lakes.

Meanwhile, a low pressure wave has become nearly stationary east of
southern Florida.  As the arctic air continues to surge toward the East
Coast on Friday, the stage will be set for the low pressure wave to
intensify rapidly off the southeastern U.S. Friday night.  Light snow is
forecast to develop across the central Appalachians and Mid-Atlantic by
Friday afternoon, before expanding toward the East Coast Friday night.  By
Saturday morning, winds are expected to strength quite a bit up and down
the East Coast as a large low pressure is forecast to intensify further
and tracks northeastward off the coast. 

Elsewhere, rain is expected to dampen southern Texas on today as a
fast-moving cold front progresses into northern Mexico to end the week.

Kong

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