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Mendocino County Alerts
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Updated:December 23, 2025 12:31 am PST

High Wind Warning HIGH WIND WARNING  
Mendocino County

  Effective: Mon, 12/22 9:17pm Severity:  Severe 
  Updated: December 23, 2025 12:31 am Urgency: Expected
  Expires: Tue, 12/23 5:30am Certainty: Likely

Areas Affected: Mendocino Coast - Northwestern Mendocino Interior - Northeastern Mendocino Interior - Southwestern Mendocino Interior - Southeastern Mendocino Interior - Northern Lake County - Southern Lake County
 
Alert Details:
* WHAT...Southeast winds 30 to 40 mph with gusts from 50 to 70 mph
expected. Strongest winds over the coastal headlands, exposed
ridges and through gaps in the terrain.

* WHERE...Mendocino County and Lake County.

* WHEN...From 7 PM Tuesday to 6 AM PST Wednesday.

* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles. Wind gusts will be
particularly strong along windward ridges and exposed coastal
headlands. There is an increased risk of tree branches and other
debris on roadways.

Information:
People are urged to secure loose objects that could be blown around
or damaged by the wind.

Remain in the lower levels of your home during the windstorm, and
avoid windows. Watch for falling debris and tree limbs. Use caution
if you must drive.
High Wind Watch HIGH WIND WATCH  
Mendocino County

  Effective: Mon, 12/22 1:33pm Severity:  Severe 
  Updated: December 23, 2025 12:31 am Urgency: Past
  Expires: Mon, 12/22 1:48pm Certainty: Observed

Areas Affected: Mendocino Coast - Northwestern Mendocino Interior - Northeastern Mendocino Interior - Southwestern Mendocino Interior - Southeastern Mendocino Interior - Northern Lake County - Southern Lake County
 
Alert Details:
The High Wind Watch has been replaced. Please see the latest information from NWS Eureka CA on this developing situation.

Information:
People are urged to secure loose objects that could be blown around
or damaged by the wind.

Remain in the lower levels of your home during the windstorm, and
avoid windows. Watch for falling debris and tree limbs. Use caution
if you must drive.
Flood Watch FLOOD WATCH  
Mendocino County

  Effective: Mon, 12/22 11:53pm Severity:  Severe 
  Updated: December 23, 2025 12:31 am Urgency: Future
  Expires: Tue, 12/23 11:15am Certainty: Possible

Areas Affected: Coastal Del Norte - Del Norte Interior - Northern Humboldt Coast - Southwestern Humboldt - Northern Humboldt Interior - Southern Humboldt Interior - Northern Trinity - Southern Trinity - Mendocino Coast - Northwestern Mendocino Interior - Northeastern Mendocino Interior - Southwestern Mendocino Interior - Southeastern Mendocino Interior - Northern Lake County - Southern Lake County
 
Alert Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Del Norte County, Humboldt County, Trinity County,
Mendocino County, and Lake County.

* WHEN...Through Friday evening.

* IMPACTS...There will be an increased risk of rock and land slides
along roadways. Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Area creeks and streams are
running high and could flood with more heavy rain.

* ADDITIONAL DETAILS...
- Additional rounds of heavy rain are likely again starting tonight
and continuing through Friday night. An additional 3-6, locally
up to 9 inches of total precipitation is possible through Friday.
There will be breaks in the heavy precipitation, but heavy rain
falling on already saturated ground will promote flooding
impacts. The more widespread moderate to heavy precipitation will
not arrive until Tuesday afternoon.
- 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  
Mendocino County

  Effective: Mon, 12/22 11:18pm Severity:  Severe 
  Updated: December 23, 2025 12:31 am Urgency: Future
  Expires: Tue, 12/23 10:00am Certainty: Possible

Areas Affected: Southwestern Mendocino Interior
 
Alert Details:
...The National Weather Service in Eureka has issued a Flood Watch
for the following rivers in California...

Navarro River at Navarro affecting Southwestern Mendocino Interior
zone.

For the Navarro River...including Navarro...flooding is possible.

* WHAT...Flooding is possible.

* WHERE...Navarro River at Navarro.

* WHEN...From late Tuesday night to Wednesday afternoon.

* ADDITIONAL DETAILS...
- At 10:15 PM PST Monday the stage was 10.9 feet.
- Forecast...Flood stage may be reached early Wednesday morning.
- Flood stage is 23.0 feet.
- http://www.weather.gov/safety/flood

Information:
If you are in the watch area, remain alert to possible flooding.

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.

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

Additional information is available at weather.gov/eka.

The next statement will be issued Tuesday morning at 1000 AM PST.
Flood Watch FLOOD WATCH  
Mendocino County

  Effective: Mon, 12/22 11:15pm Severity:  Severe 
  Updated: December 23, 2025 12:31 am Urgency: Future
  Expires: Tue, 12/23 10:00am Certainty: Possible

Areas Affected: Southeastern Mendocino Interior
 
Alert Details:
...The National Weather Service in Eureka has issued a Flood Watch
for the following rivers in California...

Russian River near Hopland affecting Southeastern Mendocino
Interior zone.

For the Russian River...including Hopland...flooding is possible.

* WHAT...Flooding is possible.

* WHERE...Russian River near Hopland.

* WHEN...From Tuesday evening to Wednesday afternoon.

* ADDITIONAL DETAILS...
- At 10:45 PM PST Monday the stage was 7.2 feet.
- Forecast...Flood stage may be reached late tomorrow evening.
- Flood stage is 15.0 feet.
- http://www.weather.gov/safety/flood

Information:
If you are in the watch area, remain alert to possible flooding.

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.

Stay tuned to further developments by listening to your local radio,
television, or NOAA Weather Radio for further information.

Additional information is available at weather.gov/eka.

The next statement will be issued Tuesday morning at 1000 AM PST.