Headline:
Flash Flood Warning issued August 11 at 8:17PM PDT until August 11 at 9:45PM PDT by NWS Las Vegas NV
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 11, 2026 - 8:17pm
Expires:
August 11, 2026 - 9:45pm
Description:
At 817 PM PDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 1.5 inches of rain have
fallen. Additional rainfall amounts up to 0.25 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...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...
Cima, Kelso and Mountain Pass.
This includes Interstate 15 in California between mile markers 158
and 175.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
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.
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