Headline:
Flash Flood Warning issued August 11 at 1:54PM PDT until August 11 at 4:00PM PDT by NWS San Diego CA
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 11, 2026 - 1:54pm
Expires:
August 11, 2026 - 4:00pm
Description:
FFWSGX
The National Weather Service in San Diego has issued a
* Flash Flood Warning for...
Extreme Southeastern Riverside County in southern California...
Extreme Northeastern San Diego County in southwestern California...
* Until 400 PM PDT.
* At 154 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...
Thermal and Santa Rosa Mountain.
Flood waters can surge through normally dry washes, far away from
ongoing thunderstorm activity.
Be aware of rapidly rising waters even outside of heavy rain and
thunderstorms.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Area Description:
Riverside, CA; San Diego, CA
Forcast Office:
NWS San Diego CA
Sender:
w-nws.webmaster@noaa.gov