One product issued by NWS for: Casper WY
Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1155 AM MDT Sun May 17 2026 WYZ020-181300- /O.CON.KRIW.WS.W.0005.260518T0000Z-260519T0000Z/ Natrona County Lower Elevations- Including the cities of Casper 1155 AM MDT Sun May 17 2026 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT MONDAY... * WHAT...Heavy snow expected. Total snow accumulations between 3 and 6 inches. Areas of higher amounts up to 8 inches between Hiland and Casper. Winds gusting as high as 40 mph. * WHERE...Natrona County Lower Elevations. * WHEN...From 6 PM this evening to 6 PM MDT Monday. * IMPACTS...Travel will be difficult, especially along Highway 20/26 between Hiland and Casper. The hazardous conditions will impact the Monday morning commute. Heavy snow could break tree limbs as many trees have leafed out. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For graphical depictions of the snowfall forecast, including the official NWS forecast, high end amounts, and low end amounts, visit https://weather.gov/riw/winter . For winter road conditions from the Wyoming Department of Transportation, visit https://wyoroad.info . && $$