Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
343 PM EDT Wed Oct 07 2020

Valid 00Z Thu Oct 08 2020 - 00Z Sun Oct 11 2020

Days 1-2...

The probability of heavy snow or significant icing is less than 10
percent.

Day 3...

...Pacific Northwest...

Snow levels are expected to drop noticeably as an upper level
shortwave trough and its associated surface frontal front move
across the Northwest on Saturday.  Measurable snow is likely
across the higher elevations of the Olympics and Cascades, with
significant accumulations possible, especially for areas above
7,000 ft. 

The probability of significant icing is less than 10 percent.

Pereira