Winter Storm Watch issued December 28 at 12:17AM MST until December 30 at 5:00PM MST by NWS Missoula MT

* WHAT…For the Winter Weather Advisory, snow expected. Likelihood
of minor to moderate impacts from around 1 to 3 inches of snow is
80 percent, and 3 to 6 inches of snow is 20 percent. For the
Winter Storm Watch, heavy snow possible. Chance of moderate to
major impacts from snow is at least 50 percent. Total snow
accumulations 9 to 16 inches.

* WHERE…I-90 Lookout Pass to Haugan and Evaro Hill.

* WHEN…For the Winter Weather Advisory, until 2 PM MST this
afternoon. For the Winter Storm Watch, from Sunday morning through
Monday afternoon.

* IMPACTS…For MODERATE impacts from snow, hazardous traveling
conditions. Use extra caution while driving. Closures and
disruptions to infrastructure may occur. For MAJOR impacts from
snow, dangerous or impossible traveling conditions at times.
Visibilities may drop below 1/4 mile due to falling and blowing
snow.