Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
1254 AM EST Mon Nov 21 2022

Valid 12Z Mon Nov 21 2022 - 12Z Wed Nov 23 2022

...Temperatures will be 10 to 20 degrees below average across the Deep
South...

...Temperatures moderate a bit ahead of Thanksgiving...


The lake effect snow event over the Great Lakes will come to an end today.
Some gusty winds may cause blowing snow to occur before calming down this
evening. Temperatures will cool down behind a weak cold front that sweeps
through this afternoon. Clear skies will allow temperatures to drop into
the teens and 20s across the East tonight, which will constitute a 10-20
degree departure from normal.

A quasi-stationary front draped between the Florida peninsula and Cuba
will be the focus for thunderstorm activity over southern Florida today.
Showers and thunderstorms will shift north into northern/central Florida
on Tuesday as the front shifts northward. Scattered thunderstorms are
possible across southern Texas today due to the presence of a trough axis
extending into the region from the Gulf of Mexico. Cloudy conditions
across south/east Texas and Louisiana will keep high temperatures in the
40s and 50s. This will be a 10-20 degree departure from normal.

High pressure over much of the lower 48 will support clear conditions and
the beginning of a warm trend emanating over the Central Plains today and
spreading eastward later in the week. An upper-level trough will bring
unsettled weather to the Pacific Northwest on Tuesday, which will be a
much needed reprieve from the ongoing poor air quality gripping the
region. Warmer than average temperatures will also arrive over the West
Coast ahead of the aforementioned upper trough.


Kebede


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