Blue-Winter Weather Advisory National Weather Service Riverton WY 151 PM MST Sat Dec 25 2021 Jackson Hole-Star Valley- Including the cities of Jackson, Afton, Alpine, Star Valley Ranch, and Thayne 151 PM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. Winds gusting as high as 40 mph. * WHERE...Jackson Hole and Star Valley. * WHEN...Until 5 PM MST Sunday. * IMPACTS...Travel could be difficult. Patchy blowing snow could reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.