Idaho, Wyoming, Montana Severe Flood Watch | Effective 07/17/2026 09:33

Headline: 
Flood Watch issued July 17 at 10:33AM MDT until July 17 at 10:00PM MDT by NWS Riverton WY
Event: 
Flood Watch
Urgency: 
Future
Effective: 
July 17, 2026 - 9:33am
Expires: 
July 17, 2026 - 9:00pm
Description: 
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northwest Wyoming, including the following area, Yellowstone National Park. * WHEN...Until 10 PM MDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Heavy rainfall from slow moving showers and thunderstorms may bring local flooding. - 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: 
Yellowstone National Park
Forcast Office: 
NWS Riverton WY
Sender: 
w-nws.webmaster@noaa.gov