Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
334 PM EDT Mon Oct 30 2023

Valid 00Z Tue Oct 31 2023 - 00Z Thu Nov 02 2023

...Cold air settles over East Coast; Freeze Warnings in effect from
Southern Plains to Ohio Valley through midweek...

...Snow showers spread from the Upper Midwest through the Great Lakes
through Halloween...

...Atmospheric River brings moderate to heavy rainfall to Pacific
Northwest beginning Wednesday...


A potent cold front will push through the Mid-Atlantic and Southeast Coast
(sans Florida) tonight. Rain showers will linger on the backside of the
front across portions of the Mid-Atlantic into Halloween (Tuesday).
Temperatures will fall dramatically for much of the East over the next
couple of days. Shortwave energy will support rain/snow showers for parts
of the Upper Midwest, Great Lakes and interior Northeast through Wednesday
morning. Another shot of cold air will arrive over the Northern/Central
Plains on the backside of the aforementioned shortwave. This new round of
cold air may drop temperatures low enough to contend with low minimum
temperature records on Wednesday from the Southern Plains to the Midwest.
Freeze Warnings are also in effect from northern Texas through Arkansas
and up into much of the Tennessee/Ohio Valley through this Wednesday as
high pressure remains overhead. This will mark an end to the growing
season for many.

The first atmospheric river event of the season is likely to begin this
Wednesday afternoon/evening over the Pacific Northwest as a low pressure
system and associated moisture plume arrive. There will be flash flooding
concerns associated with this AR, partly due to rain over snow pack in the
higher elevations as well as runoff threats over saturated soils.
Dry/gusty conditions over parts of southern California and the Southeast
will continue to support an Elevated fire weather risk on Tuesday.


Kebede


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