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Home Return to list Flash Flood Warning 0021 Issued by the Las Vegas Forecast Office
Action: New Issued At: 2026-08-11 20:47:29
009
WGUS55 KVEF 120146
FFWVEF
CAC071-120445-
/O.NEW.KVEF.FF.W.0021.260812T0146Z-260812T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
646 PM PDT Tue Aug 11 2026
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
San Bernardino County in southern California...
* Until 945 PM PDT.
* At 646 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 of 0.5 to 1 inch 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, dont 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.
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.
&&
LAT...LON 3548 11559 3542 11577 3521 11570 3497 11576
3498 11543 3547 11548
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
JP
Action: Continued Issued At: 2026-08-11 22:18:03
442
WGUS75 KVEF 120317
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
817 PM PDT Tue Aug 11 2026
CAC071-120445-
/O.CON.KVEF.FF.W.0021.000000T0000Z-260812T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
817 PM PDT Tue Aug 11 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM PDT THIS
EVENING FOR SAN BERNARDINO COUNTY...
At 817 PM PDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1 and 1.5 inches of rain have
fallen. Additional rainfall amounts up to 0.25 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams, urban
areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Cima, Kelso and Mountain Pass.
This includes Interstate 15 in California between mile markers 158
and 175.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3548 11559 3542 11577 3521 11570 3497 11576
3498 11543 3547 11548
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
JP
Action: Expired Issued At: 2026-08-11 23:41:36
394
WGUS75 KVEF 120441
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
941 PM PDT Tue Aug 11 2026
CAC071-120451-
/O.EXP.KVEF.FF.W.0021.000000T0000Z-260812T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
941 PM PDT Tue Aug 11 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 945 PM PDT THIS EVENING FOR SAN
BERNARDINO COUNTY...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 3548 11559 3542 11577 3521 11570 3497 11576
3498 11543 3547 11548
$$
JP
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