Winter Weather Advisory issued December 20 at 1:36PM MST until December 22 at 11:00AM MST by NWS Pocatello ID
Issue date: 2025-12-20T20:36+00:00
* WHAT...Snow expected. Total snow accumulations 6 to 12 inches above 6500 feet. * WHERE...Big Hole Mountains, Centennial Mountains - Island Park, and Bear River Range. * WHEN...From 2 AM Sunday to 11 AM MST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute.
Winter Storm Warning issued December 20 at 12:17PM MST until December 22 at 5:00AM MST by NWS Riverton WY
Issue date: 2025-12-20T19:17+00:00
* WHAT...Heavy snow expected. Total snow accumulations 10 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Absaroka Mountains and Yellowstone National Park. * WHEN...From 11 PM this evening to 5 AM MST Monday. * IMPACTS...Travel could be very difficult.
