Montana Severe Flood Watch | Effective 09/19/2026 09:06

Headline: 
Flood Watch issued September 19 at 10:06AM MDT until September 19 at 6:00PM MDT by NWS Great Falls MT
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 19, 2026 - 9:06am
Expires: 
September 19, 2026 - 5:00pm
Description: 
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County Valleys in Central Montana * WHEN...Until 6 PM MDT this evening. * IMPACTS...Excessive runoff may result in flooding of low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An area of rain will bring additional precipitation amounts to around 0.5 inch today, with locally higher amounts near the mountains. - Some locations impacted include Helena, Townsend, White Sulphur Springs, and Bozeman. - http://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Area Description: 
Helena Valley; Meagher County Valleys; Canyon Ferry Area; Gallatin Valley
Forcast Office: 
NWS Great Falls MT
Sender: 
w-nws.webmaster@noaa.gov