Weather Alerts For Powder River, WY

URGENT - WEATHER MESSAGE National Weather Service Riverton WY 221 AM MST Thu Dec 25 2025 Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 221 AM MST Thu Dec 25 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. Locally higher gusts are possible on the south side of Casper. * WHERE...Casper Mountain, Green Mountains and Rattlesnake Range, and Natrona County Lower Elevations. * WHEN...Until 11 AM MST this morning. * IMPACTS...Travel may be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. &&