267
FXUS01 KWBC 231934
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
234 PM EST Sat Nov 23 2024

Valid 00Z Sun Nov 24 2024 - 00Z Tue Nov 26 2024

...Moderate to heavy snow over parts of the Sierra Nevada
Mountains and Northern Intermountain Region/Northern Rockies with
moderate snow over parts of the Upper Midwest...

...Temperatures will be 10 to 25 degrees below average over the
Northern Rockies...

A front extending from the Northern High Plains, Great Basin, and
Southern California will move eastward to the Lower Great
Lakes/Ohio Valley, Lower Mississippi Valley, and then to the
Western Gulf Coast by Monday evening. A ridge of high pressure
extending from Northwestern Canada will usher cold air over parts
of the Northern Rockies, bringing temperatures of 10 to 25 degrees
below average.

The system will produce moderate to heavy snow over parts of the
Northern Intermountain Region/Northern Rockies through early
Monday morning. In addition, weak onshore flow off the Pacific
will create coastal rain and higher-elevation snow over parts of
the Pacific Northwest and Northern/Central California through
Monday. The snow will be light to moderate over the Sierra Nevada
Mountains from Saturday evening into Sunday evening. Additional
upper-level energy will move over the region from Sunday evening
into Monday, producing moderate to heavy snow over the Sierra
Nevada Mountains.

Meanwhile, upper-level energy over the Northeast will produce
light rain over parts of the Lower Great Lakes and
higher-elevation snow over the Northeast from Saturday evening
into early Monday morning.

On Sunday evening, as the wave of low pressure and associated
upper-level energy moves into the Upper Midwest, moderate snow
will develop over parts of the Upper Midwest, and rain will extend
from the Great Lakes to the Lower Mississippi Valley from Sunday
evening into Monday.


Ziegenfelder


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