114 

FOUS11 KWBC 150602

QPFHSD



Probabilistic Heavy Snow and Icing Discussion

NWS Weather Prediction Center College Park MD

202 AM EDT Thu Oct 15 2026



Valid 12Z Thu Oct 15 2026 - 12Z Sun Oct 18 2026



...Central Rockies...

Day 1...



The upper-level low responsible for periods of snow above 6,000ft

in northern CO and southern WY will exit east and weaken as it

departs the region today. Some light snow will fall as low as 

~6,000ft and could affect travel along I-25 in southeast WY. The 

heaviest snowfall (>4") is confined to elevations above 8,000ft. 

The latest 00Z HREF guidance shows moderate-to-high chances 

(50-80%) for 1"/hr snowfall rates around Rocky Mountain Nat'l Park 

and along the Laramie and Medicine Bow mountains this morning. 

Additional snowfall accumulations in the mountains above 8,000ft 

will range between 3-6" with elevations as low as 6,000ft seeing a 

coating-2". Rates will steadily taper off around midday and 

conditions will improve at all pass levels in northern CO and 

southern WY from late morning and into the afternoon.



For days 1-3, the probability of significant icing across the 

CONUS is less than 10 percent.





Mullinax









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