Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
410 AM EDT Tue Oct 03 2023

Valid 12Z Tue Oct 03 2023 - 12Z Fri Oct 06 2023

...Wyoming Rockies...
Day 1...

The upper trough remnant that was a Great Basin low on Monday will
continue to lift northeast from central WY today. Light to locally
moderate precip will continue today with flow becoming westerly
over the WY Rockies. Snow levels dip to around 8000ft this morning
then rise to around 8500ft this afternoon before precip tapers off
with height rises from the approaching upper trough. Day 1 snow
probabilities for additional accumulations after 12Z are 20 to 40
percent for 4"+ for the higher Absarokas (including the Red
Lodge/Beartooth area in MT), Tetons, Wind River, and Bighorns,
with a localized risk for 8" max.

A warm ridge builds over the West into Friday and persists through
the weekend, bringing an end to this early season wintry weather
(and likely melting all but the highest fresh snow packs.


The probability of any ice accumulation across the Continental
U.S. is less than 10 percent.

Jackson