Severe · Flash Flood WarningThis alert has expired. It is kept for reference.
Flash Flood Warning issued September 18 at 11:49AM MDT until September 18
Affecting Elmore, ID
In effect until: Sep 18, 2026, 8:00 PM
Elmore, ID
Likely impact in Elmore, ID; effects through 8:00 PM.
Get to higher ground now. Never drive through flooded roads.
Read the original bulletin (official text)
FFWBOI The National Weather Service in Boise has issued a * Flash Flood Warning for... The MM115 HWY 20 burn scar in... Central Elmore County in southwestern Idaho... * Until 200 PM MDT. * At 1149 AM MDT, Doppler radar indicated thunderstorms producing heavy rain over the MM115 HWY 20 Burn Scar. The expected rainfall rate is 0.25 to 0.75 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Flash flooding caused by thunderstorms in and around the MM115 HWY 20 Burn Scar. SOURCE...Radar indicated. IMPACT...Flooding of areas in and around the MM115 HWY 20 Burn Scar. * Some locations that will experience flash flooding include... Mainly rural areas of Central Elmore County.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™