Idaho Severe Flash Flood Warning | Effective 07-17-2026 18:48

Headline: 
Flash Flood Warning issued July 17 at 7:48PM MDT until July 17 at 9:15PM MDT by NWS Pocatello ID
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 17, 2026 - 6:48pm
Expires: 
July 17, 2026 - 8:15pm
Description: 
FFWPIH The National Weather Service in Pocatello has extended the * Flash Flood Warning for... The Wapiti burn scar in... West Central Custer County in central Idaho... * Until 915 PM MDT. * At 748 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Wapiti Burn Scar. Between 0.25 and 0.75 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Wapiti burn scar. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Wapiti Burn Scar. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Wapiti Burn Scar. * Some locations that will experience flash flooding include... Cape Horn Area and Banner Summit.
Instruction: 
This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Wapiti Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 9:15 PM MDT. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 9:15 PM MDT. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Area Description: 
Custer, ID
Forcast Office: 
NWS Pocatello ID