If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THURSDAY... * WHAT...Heavy snow. Additional snow accumulations of 1 to 2 feet, with localized amounts of up to 3 feet in the higher peaks. Winds gusting 35 to 50 mph. * WHERE...Yellowstone National Park, Teton and Gros Ventre Mountains and Salt River and Wyoming Ranges. * WHEN...Until 5 PM MST Thursday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...A brief lull in snowfall is expected Wednesday afternoon. The second round arrives Wednesday evening, with moderate to heavy snowfall into Thursday morning. Snowfall totals over the valleys of northern Yellowstone will range from 1 to 3 inches.