Expires:202308080315;Remove:202308080315;243399 WGUS55 KBOI 080016 FFWBOI IDC001-015-080315- /O.NEW.KBOI.FF.W.0011.230808T0016Z-230808T0315Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Boise ID 616 PM MDT Mon Aug 7 2023 The National Weather Service in Boise has issued a * Flash Flood Warning for... North Central Ada County in southwestern Idaho... Southwestern Boise County in southwestern Idaho... * Until 915 PM MDT. * At 616 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 1 to 3 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar may result in debris flow moving through the Boise Foothills. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Northern Boise and Hidden Springs. 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 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. Move away from recently burned areas. Life-threatening flooding of creeks, roads and normally dry washes is likely. The heavy rains will likely trigger rockslides, mudslides and debris flows in steep terrain, especially in and around these areas. Move to higher ground now. Act quickly to protect your life. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks. && LAT...LON 4376 11619 4375 11608 4371 11608 4368 11609 4367 11612 4365 11621 4366 11624 4368 11624 4371 11627 4374 11627 FLASH FLOOD...RADAR INDICATED EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR $$ BOI