California Severe Flash Flood Warning | Effective 09/24/2026 15:15

Headline: 
Flash Flood Warning issued September 24 at 3:15PM PDT until September 24 at 6:15PM PDT by NWS Las Vegas NV
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
September 24, 2026 - 3:15pm
Expires: 
September 24, 2026 - 6:15pm
Description: 
FFWVEF The National Weather Service in Las Vegas has issued a * Flash Flood Warning for... San Bernardino County in southern California... * Until 615 PM PDT. * At 315 PM PDT, emergency management reported thunderstorms producing heavy rain across the warned area. Between 0.75 and 1.25 inches of rain have fallen. Additional rainfall amounts of 0.75 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Twentynine Palms and Twentynine Palms Base.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Area Description: 
San Bernardino, CA
Forcast Office: 
NWS Las Vegas NV
Sender: 
w-nws.webmaster@noaa.gov