* WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected.
* WHERE...Bears Paw Mountains and Southern Blaine, Eastern Pondera and Eastern Teton, Northern Blaine County, and Western and Central Chouteau County.
* WHEN...From 8 AM to 8 PM MST Sunday.
* IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.