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Updated:December 24, 2025 2:16 am PST

High Wind Warning HIGH WIND WARNING  
San Bernardino County

  Effective: Tue, 12/23 9:20pm Severity:  Severe 
  Updated: December 24, 2025 2:16 am Urgency: Expected
  Expires: Wed, 12/24 6:30am Certainty: Likely

Areas Affected: San Bernardino County Mountains - Apple and Lucerne Valleys
 
Alert Details:
* WHAT...South winds 25 to 35 mph with gusts to 60 mph expected.
Isolated gusts to 75 mph. Strongest winds will be on the desert
slopes of the San Bernardino mountains.

* WHERE...Apple and Lucerne Valleys and San Bernardino County
Mountains.

* WHEN...Until 3 PM PST Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines.
Power outages are possible. Travel will be difficult, especially
for high profile vehicles.

Information:
Watch for falling debris and tree limbs. Use caution if you must
drive.
Wind Advisory WIND ADVISORY  
San Bernardino County

  Effective: Tue, 12/23 9:20pm Severity:  Moderate 
  Updated: December 24, 2025 2:16 am Urgency: Expected
  Expires: Wed, 12/24 6:30am Certainty: Likely

Areas Affected: San Diego County Coastal Areas - San Bernardino and Riverside County Valleys-The Inland Empire - San Diego County Inland Valleys - Santa Ana Mountains and Foothills - Orange County Coastal - Orange County Inland
 
Alert Details:
* WHAT...South winds 15 to 25 mph with gusts 30 to 40 mph expected,
locally up to 45 mph possible at the beaches.

* WHERE...Orange County Coastal Areas, Orange County Inland Areas,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Coastal Areas, San Diego County Valleys, and Santa
Ana Mountains and Foothills.

* WHEN...From 3 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strongest winds for Orange County and the
Inland Empire will be in the morning to early afternoon. Strongest
winds for San Diego county will be mid to late morning into the
evening.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Wind Advisory WIND ADVISORY  
San Bernardino County

  Effective: Wed, 12/24 12:04am Severity:  Moderate 
  Updated: December 24, 2025 2:16 am Urgency: Expected
  Expires: Wed, 12/24 6:00pm Certainty: Likely

Areas Affected: Joshua Tree NP West
 
Alert Details:
* WHAT...South winds 15 to 25 mph with gusts up to 45 mph expected.

* WHERE...Western portion of Joshua Tree National Park.

* WHEN...From 8 AM this morning to 6 PM PST this evening.

* IMPACTS...Difficult driving conditions, especially for larger
vehicles traveling along roads with crosswinds. Light, unsecured
objects may become airborne.

Information:
A Wind Advisory means that sustained wind speeds of between 30 and
40 mph are expected, or wind gusts of between 40 and 58 mph. Winds
this strong can make driving difficult, especially for high profile
vehicles.
Wind Advisory WIND ADVISORY  
San Bernardino County

  Effective: Tue, 12/23 11:10pm Severity:  Moderate 
  Updated: December 24, 2025 2:16 am Urgency: Expected
  Expires: Wed, 12/24 2:00pm Certainty: Likely

Areas Affected: Morongo Basin
 
Alert Details:
* WHAT...South winds 20 to 25 mph with gusts up to 50 mph expected.

* WHERE...Morongo Basin.

* WHEN...From 7 AM Wednesday to 10 PM PST Thursday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Areas of blowing dust are possible.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Flood Watch FLOOD WATCH  
San Bernardino County

  Effective: Tue, 12/23 10:57pm Severity:  Severe 
  Updated: December 24, 2025 2:16 am Urgency: Future
  Expires: Wed, 12/24 2:00pm Certainty: Possible

Areas Affected: Lake Havasu and Fort Mohave - Northwest Deserts - Lake Mead National Recreation Area - Owens Valley - Death Valley National Park - Western Mojave Desert - Eastern Mojave Desert, Including the Mojave National Preserve - Morongo Basin - Cadiz Basin - San Bernardino County-Upper Colorado River Valley - Northeast Clark County - Western Clark and Southern Nye County - Spring Mountains-Red Rock Canyon - Las Vegas Valley - Lake Mead National Recreation Area - Southern Clark County
 
Alert Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of northwest Arizona, including the following
areas, Lake Havasu and Fort Mohave, Lake Mead National Recreation
Area and Northwest Deserts, southeast California, including the
following areas, Cadiz Basin, Death Valley National Park, Eastern
Mojave Desert, Morongo Basin, Owens Valley, San Bernardino
County-Upper Colorado River Valley and Western Mojave Desert, and
southern Nevada, including the following areas, Lake Mead National
Recreation Area, Las Vegas Valley, Northeast Clark County,
Southern Clark County, Spring Mountains-Red Rock Canyon and
Western Clark and Southern Nye County.

* WHEN...From 4 AM PST  /5 AM MST/ Wednesday through late Wednesday
night.

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

* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood

Information:
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.
Flood Watch FLOOD WATCH  
San Bernardino County

  Effective: Tue, 12/23 9:29pm Severity:  Severe 
  Updated: December 24, 2025 2:16 am Urgency: Future
  Expires: Wed, 12/24 6:15am Certainty: Possible

Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Bernardino County Mountains - Riverside County Mountains - Santa Ana Mountains and Foothills - Apple and Lucerne Valleys - Coachella Valley - San Gorgonio Pass Near Banning - Orange County Coastal - Orange County Inland
 
Alert Details:
* 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, Orange County
Coastal Areas, Orange County Inland Areas, Riverside County
Mountains, San Bernardino County Mountains, San Bernardino and
Riverside County Valleys-The Inland Empire, San Gorgonio Pass near
Banning and Santa Ana Mountains and Foothills.

* WHEN...Through Wednesday evening.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Mud and
debris flow are possible near and in burn scars, including the
Airport, Bridge and Line burn scars.

* ADDITIONAL DETAILS...
- An Atmospheric River will bring widespread moderate to heavy
rain to the region on Wednesday. The heaviest and most
widespread rain is expected Wednesday morning through
evening. Peak rainfall rates of 0.50 to 1 inch per hour are
expected. There is a potential for locally heavier hourly
rainfall rates to develop with convection embedded in the
main rain band or in thunderstorms after the main band
passes. Isolated heavy showers could continue into Thursday
but impacts from any additional rain are expected to be more
localized.

Snow levels are expected to remain above 8000 feet during
period of heaviest precipitation bringing a heightened risk
of mud slides, debris flow, and areas of flash flooding in
the San Bernardino county mountains.
- https://www.weather.gov/safety/flood

Information:
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.

Be alert in the mountains for rockslides and rocks in the road.
Flood Watch FLOOD WATCH  
San Bernardino County

  Effective: Wed, 12/24 12:03am Severity:  Severe 
  Updated: December 24, 2025 2:16 am Urgency: Future
  Expires: Wed, 12/24 2:00pm Certainty: Possible

Areas Affected: Joshua Tree NP West
 
Alert Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...A portion of southern California, including the following
area, Joshua Tree NP West.

* WHEN...From 9 AM PST this morning through this evening.

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

* ADDITIONAL DETAILS...
- Strong inland moisture transport associated with an
atmospheric river making landfall along Southern California
will promote an extended period of moderate rainfall over
portions of the Watch area. The mountains of western Joshua
Tree National Park could receive rainfall totals locally
upwards of 1.00-2.00".
- http://www.weather.gov/safety/flood

Information:
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.