Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
337 PM EDT Thu Oct 14 2021

Valid 00Z Fri Oct 15 2021 - 00Z Mon Oct 18 2021

...Colorado...
Day 1...

An amplified upper trough is expected to cross the Rockies tonight
into Friday morning. Lee-side surface troughing coupled with upper
level divergence within the left exit region of the jet will allow
for light snow accumulations for the front ranges of the Northern
and Central Rockies and isolated areas of the High Plains. More
moderate snowfall totals of a few inches are expected in western
Colorado, particularly in the Park Range, Flat Tops, Elk
Mountains, Sawatch Range, and the northern San Juan Mountains.

The probability for significant icing (0.25 inches or more) is
less than 10 percent Days 1-3.

Zavadoff/Jackson