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Elev 3209 ft, 34.43 °N, 117.3 °W

Hesperia, CA Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Hesperia, CA
Elevation: 3209ft
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Active Weather Alerts

Flood Advisory
Issued: 5:11 PM Sep. 18, 2025 – National Weather Service
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1130 AM PDT THIS MORNING...

* WHAT...Flooding caused by excessive rainfall continues.

* WHERE...A portion of southern California, including the following
county, San Bernardino.

* WHEN...Until 1130 AM PDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Ponding of water in urban or other areas is occurring or is
imminent.

* ADDITIONAL DETAILS...
- At 1011 AM PDT, Local law enforcement reported moderate to
heavy rain in the advisory area with minor flooding and
roadway accidents due to wet roads on State Route 62. Minor
flooding is expected to continue. Up to 0.5 inches of rain
has already fallen with additional rainfall likely through
the morning.
- Some locations that will experience flooding include...
Twentynine Palms, Yucca Valley, Twentynine Palms Base,
Twentynine Palms Airport, Joshua Tree Lake Campground, Joshua
Tree, Morongo Valley and Vidal Junction.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

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.

&&



Flash Flood Warning
Issued: 5:10 PM Sep. 18, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY FOR
SAN BERNARDINO COUNTY...

At 1010 AM PDT, Doppler radar and local law enforcement reported
thunderstorms producing heavy rain across the warned area. Flash
flooding is ongoing or expected to begin shortly.

HAZARD...Life-threatening flash flooding. Thunderstorms producing
flash flooding.

SOURCE...Law enforcement reported water in the road at Amboy
Road.

IMPACT...Life-threatening flash flooding of low-water crossings,
creeks, normally dry washes and roads.

Some locations that will experience flash flooding include...
Old Dale and Wonder Valley.

This includes State Route 62 between  mile markers 44 and 56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&


FLASH FLOOD...OBSERVED;
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

Flood Watch
Issued: 9:16 AM Sep. 18, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...A portion of Southwest California, including the following
areas, Apple and Lucerne Valleys, Coachella Valley, Riverside
County Mountains, San Bernardino County Mountains, San Diego
County Deserts, San Diego County Mountains and San Gorgonio Pass
near Banning.

* WHEN...Through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Low-water crossings may be flooded.

* ADDITIONAL DETAILS...
- Scattered showers and thunderstorms will spread northward
across the area today with the most likely time for more
widespread and heavier rainfall from the morning through
early evening. Some thunderstorms may produce locally heavy
rainfall, which may lead to flooding. The most likely peak
hourly rainfall is one-half to one inch with isolated maximum
hourly rainfall to 2 inches.
- https://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

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