A strong and vigorous disturbance will cause strong to severe thunderstorms to develop across the northern Rockies today, primarily in the afternoon and evening.
Thunderstorms will form due to an approaching cold front across Idaho, Montana, northern Utah and Wyoming. The main threat from these thunderstorms will be strong wind gusts, but hail will also be a possibility. Wind gusts of up to 60 to 75 mph will be possible in the strongest thunderstorms.
The government’s Storm Prediction Center has issued a Slight Risk, a 2 out of 5 on the severe probability scale, for parts of eastern Idaho, northern Utah, western Montana and western Wyoming. This includes Salt Lake City and Great Falls, Mont…