Flash Flood Watch

Locations Affected

Idaho Falls, ID ∙ Edmonds, ID ∙ Saint Anthony, ID ∙ Ammon, ID ∙ Rexburg, ID ∙ Idaho Falls Fanning Field, ID ∙ Rigby, ID ∙ Byrne, ID ∙ Menan, ID ∙ Rexburg Madison County Airport, ID

Full Alert Message

URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Pocatello ID 1243 AM MDT Wed Aug 12 2026 ...FLASH FLOOD WATCH FOR THE BIG ROCK BURN SCAR IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... * WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Big Rock burn scar. * WHERE...The Big Rock burn scar near Heise. * WHEN...From Thursday afternoon through Thursday evening. * IMPACTS...Heavy rainfall over the Big Rock burn scar is possible Thursday afternoon into Thursday evening. Anyone in or near the Big Rock burn scar should prepare for potential debris flow moving through the Big Rock burn scar. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall near the Big Rock burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Heise. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

---