* WHAT...Snow expected. Likelihood of minor to moderate impacts from around 1 to 2 inches of snow is 80 percent, and isolated areas of 2 to 4 inches is 30 percent. Snow bands will have the potential for brief moderate to heavy snow, leading to low visibility and icy conditions. Winds gusting as high as 35 mph.

* WHERE...Mission Valley, Polson, Flathead Lake, and Flathead Valley.

* WHEN...From 6 PM this evening to 11 AM MST Tuesday.

* IMPACTS...For MODERATE impacts from snow, expect disruptions to normal activities. Use extra caution while driving.