Idaho Severe Flash Flood Watch | Effective 09/02/2026 13:03

Headline: 
Flash Flood Watch issued September 2 at 2:03PM MDT until September 4 at 7:00PM MDT by NWS Boise ID
Event: 
Flash Flood Watch
Urgency: 
Future
Effective: 
September 2, 2026 - 1:03pm
Expires: 
September 3, 2026 - 3:15am
Description: 
* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Wapiti Burn Area. * WHERE...Wapiti Burn Area. * WHEN...From midnight MDT tonight through Friday evening. * IMPACTS...Heavy rainfall over the Wapiti burn area is possible during the period of the watch. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding or debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - Heavy rainfall is possible over the burn scar, which may lead to flash flooding and debris flows in Grandjean area. - https://www.weather.gov/safety/flood
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Boise Mountains
Forcast Office: 
NWS Boise ID
Sender: 
w-nws.webmaster@noaa.gov