Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
414 AM EDT Mon Nov 01 2021

Valid 12Z Mon Nov 01 2021 - 12Z Wed Nov 03 2021

...Wintry mix forecast for the Central Rockies and Plains, while showers
and thunderstorms are forecast for the Southern Plains...

...Cold front to bring cooler, Fall-like temperatures from the Plains to
the East Coast...

...Rain likely ahead of a Pacific storm system along the West Coast...

...Daily rain and snow showers expected for the Great Lakes region,
spreading into the Northeast on Tuesday...

At the start of the forecast period, a cold front will be moving off the
East Coast as well as into the South and Texas. The western portion of
this front from Texas northwestward into the Central Rockies will remain
relatively stationary. A wintry mix of freezing rain, sleet, and snow is
forecast to continue along and north of this front from the Central
Rockies east into the Central Plains. Moisture will be rather limited so
accumulations should generally remain on the lighter side overall.
However, a Winter Weather Advisory is currently out for southwestern
Nebraska and southeastern Wyoming through Monday afternoon, where higher
snow accumulations between 3-5 inches are possible. Meanwhile, shower and
thunderstorm chances will increase along and north of the frontal boundary
for portions of Texas and Oklahoma as a shortwave passes over the region
Tuesday into Tuesday night. The highest rain totals of around an inch are
most likely from northwest Texas to southeast Oklahoma.

Much cooler temperatures are forecast behind the cold front as it
continues southward, with many locations seeing their first Fall-like
weather of the season. Highs in the 40s over the Central Plains Monday
will spread as far south as Oklahoma and the Texas Panhandle Tuesday.
Similarly, highs in the 40s and 50s from the Midwest and Ohio Valley
northeast to New England Monday will reach the Mid-South, Tennessee
Valley, and Mid-Atlantic on Tuesday. Subfreezing low temperatures are also
forecast Tuesday and Wednesday morning. The freezing line will likely
stretch from the Chicago area southwestward through northern Missouri and
Kansas Tuesday morning. The freezing line will move eastward Wednesday
morning, with subfreezing low temperatures forecast for northern portions
of the Ohio Valley.

A storm system approaching the West Coast will bring rain to the Pacific
Northwest and northern California on Monday. The system is forecast to
weaken as it reaches the coast, so any significant impacts should remain
isolated. However, rain totals between between 1-2 inches are possible
along the immediate coast. Rain and higher elevation snow showers are also
forecast to overspread the northern Great Basin and Northern Rockies
Monday night into Tuesday. 

For the Great Lakes region, a deep low pressure center over Canada will
lead to northerly onshore flow, producing daily rain and snow showers.
Additional waves rotating around the system, including a cold front
forecast to form Tuesday morning, will also help to continue the shower
chances through the forecast period. As the cold front moves east, rain
and snow shower chances will increase for the interior Northeast and New
England, with showers also possible as far south as the Mid-Atlantic.

Putnam

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