Montana High Wind Watch | Effective 05/12/2026 11:47

Headline: 
High Wind Watch issued May 12 at 12:47PM MDT until May 13 at 9:00PM MDT by NWS Great Falls MT
Event: 
High Wind Watch
Urgency: 
Future
Effective: 
May 12, 2026 - 11:47am
Expires: 
May 13, 2026 - 3:00am
Description: 
* WHAT...Southwest winds 25 to 40 mph with gusts up to 60 mph possible. * WHERE...Southwestern Montana along and south of Interstate 90, and Canyon Ferry Area. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...High winds may move loose debris, damage property and cause power outages. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Wednesday afternoon there will also be isolated thunderstorms in these areas that will bring wind gusts in excess of 60 mph.
Instruction: 
Monitor the latest forecasts and warnings for updates. Remember, a High Wind Watch means that there is at least a 50% chance of 40 mph sustained winds or 58 mph wind gusts occurring during the watch period.
Area Description: 
Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains
Forcast Office: 
NWS Great Falls MT
Sender: 
w-nws.webmaster@noaa.gov