If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit weather.gov/riw/winter. For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info.

* WHAT...Snow expected. Total snow accumulations of 1 to 2 feet, with the higher amounts occurring on the northern half of the range. * WHERE...Bighorn Mountains. * WHEN...Until 6 AM MDT Thursday. Steadiest snow will fall now and through the day Wednesday. * IMPACTS...Travel could be very difficult across Powder River and Granite Passes.