Montana, Wyoming Moderate Special Weather Statement | Effective 09/18/2026 16:04

Headline: 
Special Weather Statement issued September 18 at 5:04PM MDT by NWS Billings MT
Event: 
Special Weather Statement
Urgency: 
Expected
Effective: 
September 18, 2026 - 4:04pm
Expires: 
September 18, 2026 - 5:00pm
Description: 
At 504 PM MDT, Doppler radar was tracking an area of strong thunderstorms extending from over Ranchester to 29 miles southeast of Sheridan moving northeast at 20 mph. HAZARD...Wind gusts up to 40 mph and penny size hail. SOURCE...Trained Weather Spotters. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Sheridan, Ranchester, Dayton, Big Horn, Clearmont, Tongue River Reservoir, Banner, Rosebud Battlefield Park and Leiter.
Instruction: 
If outdoors, consider seeking shelter inside a building. Heavy rainfall is also occurring with these storms and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Southern Big Horn; Sheridan Foothills
Forcast Office: 
NWS Billings MT
Sender: 
w-nws.webmaster@noaa.gov