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