California Severe Flash Flood Warning | Effective 08-11-2026 14:53

Headline: 
Flash Flood Warning issued August 11 at 2:53PM PDT until August 11 at 4:00PM PDT by NWS San Diego CA
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 11, 2026 - 2:53pm
Expires: 
August 11, 2026 - 4:00pm
Description: 
FFWSGX The National Weather Service in San Diego has issued a * Flash Flood Warning for... A small portion of Central San Diego County in southwestern California... * Until 400 PM PDT. * At 253 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 1 to 2 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Julian, Hwy 78 Between Banner And S2, Cuyamaca Rancho State Park, Hwy 79 Between Julian And Lake Cuyamaca, Lake Cuyamaca, Hwy S1 Between Lake Cuyamaca And Mount Laguna, Hwy S2 Between Hwy 79 And Hwy 78 and Banner.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 4:00 PM PDT. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 4:00 PM PDT. 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: 
San Diego, CA
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov