Weather Alerts For Natrona, WY

URGENT - WEATHER MESSAGE National Weather Service Riverton WY 101 AM MST Fri Dec 19 2025 Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Casper and Jeffrey City 101 AM MST Fri Dec 19 2025 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph. * WHERE...Casper Mountain, Green Mountains and Rattlesnake Range, and Natrona County Lower Elevations. * WHEN...Until 11 PM MST this evening. * IMPACTS...Damaging winds may blow down trees and power lines. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Localized stronger winds up to 80 mph are possible for wind prone locations, like Outer Drive in southern Casper.