Logo

Marin County Alerts
Noaa Logo 2
NOAA's National Weather Service
Each location shows all alerts on one page
WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
Alert Summary | Alert RSS Feed | Alert Archives | Icon key
Updated:December 26, 2025 11:01 am PST

High Surf Advisory HIGH SURF ADVISORY  
Los Angeles County

  Effective: Fri, 12/26 3:41am Severity: Minor
  Updated: December 26, 2025 11:01 am Urgency: Expected
  Expires: Fri, 12/26 3:00pm Certainty: Likely

Areas Affected: San Francisco - Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast
 
Alert Details:
* WHAT...Large breaking waves up to 25 feet, strong rip
currents and sneaker waves.

* WHERE...San Francisco, Coastal North Bay Including Point Reyes
National Seashore, San Francisco Peninsula Coast, Northern
Monterey Bay and Southern Monterey Bay and Big Sur Coast
Counties.

* WHEN...For the Beach Hazards Statement, through 4 AM Friday.
For the High Surf Advisory, from 4 AM to 10 PM PST Friday.

* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.

Information:
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
High Surf Advisory HIGH SURF ADVISORY  
Marin County

  Effective: Fri, 12/26 3:41am Severity: Minor
  Updated: December 26, 2025 11:01 am Urgency: Expected
  Expires: Fri, 12/26 3:00pm Certainty: Likely

Areas Affected: San Francisco - Coastal North Bay Including Point Reyes National Seashore - San Francisco Peninsula Coast - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast
 
Alert Details:
* WHAT...Large breaking waves up to 25 feet, strong rip
currents and sneaker waves.

* WHERE...San Francisco, Coastal North Bay Including Point Reyes
National Seashore, San Francisco Peninsula Coast, Northern
Monterey Bay and Southern Monterey Bay and Big Sur Coast
Counties.

* WHEN...For the Beach Hazards Statement, through 4 AM Friday.
For the High Surf Advisory, from 4 AM to 10 PM PST Friday.

* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.

Information:
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Flood Watch FLOOD WATCH  
Los Angeles County

  Effective: Fri, 12/26 5:38am Severity:  Severe 
  Updated: December 26, 2025 11:01 am Urgency: Future
  Expires: Fri, 12/26 10:00pm Certainty: Possible

Areas Affected: Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - North Bay Interior Valleys
 
Alert Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible from multiple lines of showers and thunderstorms, strong
at times, moving across the area.

* WHERE...The Northern San Francisco Bay Area (Napa, Sonoma, and
Marin counties).

* WHEN...Through this evening.

* IMPACTS...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.

* ADDITIONAL DETAILS...
- Soils are saturated from the last few days of rain. Showers and
thunderstorm with high rain rates may lead to flash flooding and
the potential for landslides.
- 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  
Marin County

  Effective: Fri, 12/26 5:38am Severity:  Severe 
  Updated: December 26, 2025 11:01 am Urgency: Future
  Expires: Fri, 12/26 10:00pm Certainty: Possible

Areas Affected: Marin Coastal Range - Sonoma Coastal Range - North Bay Interior Mountains - Coastal North Bay Including Point Reyes National Seashore - North Bay Interior Valleys
 
Alert Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible from multiple lines of showers and thunderstorms, strong
at times, moving across the area.

* WHERE...The Northern San Francisco Bay Area (Napa, Sonoma, and
Marin counties).

* WHEN...Through this evening.

* IMPACTS...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.

* ADDITIONAL DETAILS...
- Soils are saturated from the last few days of rain. Showers and
thunderstorm with high rain rates may lead to flash flooding and
the potential for landslides.
- 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.