(1 of 2) * WHAT...Heavy snow expected. Total snow accumulations ranging from between 2 and 4 inches in Liberty and Toole Counties to between 4 and 7 inches in Eastern and Central Glacier County. Winds gusting as high as 35 mph. * WHERE...Eastern Glacier, Western Toole, and Central Pondera Counties, Eastern Toole and Liberty Counties, and Northern High Plains. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Plan for winter driving conditions. Snow and blowing snow may significantly reduce visibility at times, especially this afternoon and evening. (2 of 2) * WHAT...Heavy snow expected. Additional snow accumulations ranging from 4 inches on the foothills up to 12 inches on mountain peaks. 6 to 9 inches of snowfall possible on Marias Pass. Winds gusting as high as 30 mph. * WHERE...East Glacier Park Region Zone. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Travel could be very difficult. Tire chains may be required for some vehicles if traveling through mountain passes. Those in the backcountry should ensure they are prepared for dangerous conditions. Snow and blowing snow may reduce visibility at times, especially this afternoon and evening.