Subj : HVYSNOW: Probabilistic He
To   : All
From : Mike Powell
Date : Thu Sep 28 2023 08:54:00

FOUS11 KWBC 280650
QPFHSD

Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
249 AM EDT Thu Sep 28 2023

Valid 12Z Thu Sep 28 2023 - 12Z Sun Oct 01 2023

....California/High Sierra Nevada...
Day 3...

A reinforcing shortwave trough digs around low pressure over
Vancouver Island, amplifying into a closed low over the northern
CA/NV border Saturday night. A plume of Pacific moisture shifts
into central CA Saturday is lifted over the Sierra Nevada. Snow
levels look to be around 8000ft per the NBM with moderately high
Day 3 WWD probabilities for 4 or more inches over the High Sierra
as well as the highest White Mtns.


The probability of any ice accumulation across the CONUS is less
than 10 percent.


Jackson


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