Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
244 PM EDT Thu May 02 2019

Valid 00Z Fri May 03 2019 - 00Z Mon May 06 2019


...Northern Rockies...

Weak mid level energy embedded within northwest flow, along with a
low to mid level baroclinic zone sliding south, may support snow
showers across portions of the western Montana and Wyoming ranges
Saturday and Sunday.  Overall expect accumulations to be light,
with WPC guidance only indicating a few localized Slight Risk
areas for amounts of 4-inches or more during the Days 2 and 3
periods.

The probability of significant icing is less than 10 percent.

Pereira