Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 AM EDT Sun Oct 31 2021

Valid 12Z Sun Oct 31 2021 - 12Z Tue Nov 02 2021

...One more day of rain for the Northeast as storm system finally departs
Sunday evening...

...Frontal system to bring showers, thunderstorms, and a wintry mix from
the Great Basin to the Central Plains...

...Precipitation chances increase Monday for the West Coast as a Pacific
storm system approaches...

The powerful storm system that brought heavy rain and coastal flooding to
the East Coast the past few days will finally begin to depart the region
on Sunday as the low pressure center moves northward into Canada.
Lingering showers are likely through the day for northern New England and
upstate New York, where some locations could see up to another inch of
rain. As this system departs, another area of low pressure to the west
will deepen and move further northward into Canada, with a trailing cold
front that will continue east across the Great Lakes Sunday. Scattered
rain showers will be likely through the period with the passage of the
front as well as with additional disturbances rotating around the system.
A wintry mix is also possible with the cooler air behind the front.

Further west, this cold front will continue southward through the Plains
while remaining stalled through the Central Rockies and northern Great
Basin.  A wintry mix of rain, freezing rain, sleet, and snow showers will
expand in coverage from the Central Rockies and High Plains Sunday further
east into the Central Plains Monday. Accumulations overall are expected to
remain light with this system given the relative dearth of moisture
available. However, this will likely be the first taste of winter for many
areas east of the Rockies so caution is still advised. A Winter Weather
Advisory is out for portions of eastern Wyoming and western Nebraska where
a glaze of freezing rain and up to 2 inches of snow are expected on
Sunday. Chilly temperatures are forecast for Sunday and Monday north of
the front, which will slow as it moves into Texas. Highs will generally be
in the upper 50s to lower 60s for the Southern High Plains and Oklahoma.
Widespread highs in the 40s are forecast further north, with temperatures
dipping below freezing Monday and Tuesday morning. Showers and some
thunderstorms are possible along western portions of the front from the
northern Great Basin eastward to western Colorado.

A storm system over the eastern Pacific will approach the coast of the
Pacific Northwest and northern California by Monday morning. Rain and
higher elevation snow is likely throughout the day Monday and into Tuesday
morning. The heaviest rain is forecast for far southern Oregon and
northern California, where totals over an inch are possible. The system is
forecast to weaken as it reaches the coast, so any more significant
impacts should remain limited.

Putnam

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