Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
433 AM EDT Sat Oct 01 2022

Valid 12Z Sat Oct 01 2022 - 12Z Tue Oct 04 2022

...North-Central Rockies...

Day 1...

Low pressure will linger along the ID/WV border today before
lifting slowly northeast Sunday/Monday. Paired downstream
divergence with upper level diffluence will continued to combine
with moist 700mb upslope flow to drive deep layer ascent into the
terrain of WY into MT into tonight supporting periods of moderate
to heavy snow above 9000ft. An additional 4-8" are possible
through tonight over the highest portions of the MT/WY Absarokas,
Wind River, and Bighorns.

For days 1-3, no icing is forecast.

Jackson