414 WGUS55 KPIH 230207 FFWPIH IDC051-065-230500- /O.NEW.KPIH.FF.W.0007.260823T0207Z-260823T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Pocatello ID 807 PM MDT Sat Aug 22 2026 The National Weather Service in Pocatello has issued a * Flash Flood Warning for... The Big Rock burn scar in... Southeastern Jefferson County in southeastern Idaho... South Central Madison County in southeastern Idaho... * Until 1100 PM MDT. * At 807 PM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Big Rock Burn Scar. The expected rainfall rate is 0.25 to 0.5 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Big Rock 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 Big Rock Burn Scar. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of areas in and around the Big Rock Burn Scar. * Some locations that will experience flash flooding include... Heise. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Big Rock 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. && LAT...LON 4366 11172 4367 11173 4368 11172 4366 11170 4366 11167 4367 11165 4365 11163 4364 11164 4364 11165 4363 11166 4363 11169 4364 11169 4365 11171 FLASH FLOOD...RADAR INDICATED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR $$ 13