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Updated:February 18, 2026 6:46 am PST

High Surf Advisory HIGH SURF ADVISORY  
Sonoma County

  Effective: Wed, 2/18 1:24am Severity: Minor
  Updated: February 18, 2026 6:46 am Urgency: Expected
  Expires: Wed, 2/18 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 of 18 to 22 feet, with continuing
increased risk of sneaker waves and strong rip currents.

* WHERE...Pacific Coast beaches.

* WHEN...Until 9 AM PST Friday.

* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion can be expected. Sneaker waves can
sweep across the shoreline without warning, pulling people
into the sea from rocks, jetties and beaches. Large breaking
waves can overpower swimmers resulting in significant physical
injury and increase the risk of drowning.

Information:
Swimmers should remain out of the water due to dangerous surf
conditions.

Stay off of jetties, piers, rocks, and other waterside
infrastructure. Remain out of the water to avoid hazardous surf
and NEVER turn your back on the ocean. Monitor local weather, surf
and tide forecasts at www.weather.gov/mtr.
Cold Weather Advisory COLD WEATHER ADVISORY  
Sonoma County

  Effective: Tue, 2/17 9:15pm Severity:  Moderate 
  Updated: February 18, 2026 6:46 am Urgency: Expected
  Expires: Wed, 2/18 9:00am Certainty: Likely

Areas Affected: North Bay Interior Mountains - North Bay Interior Valleys - Southern Salinas Valley/Arroyo Seco and Lake San Antonio
 
Alert Details:
* WHAT...Cold conditions with temperatures as low as 32 expected.

* WHERE...Southern Salinas Valley/Arroyo Seco and Lake San Antonio,
North Bay Interior Mountains, and North Bay Interior Valleys.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Cold conditions will be hazardous to sensitive
populations such as unhoused individuals. Prolonged exposure to the
cold conditions will lead to hypothermia for people, pets, and
livestock. Cold conditions may damage or kill sensitive crops,
plants, and vegetation if appropriate precautions are not taken.

Information:
Ensure portable heaters are working properly and are used correctly
to avoid sparking a fire indoors. Do not use generators or grills
inside as carbon monoxide poisoning can result.

Check with your local, city, or county officials for information on
available warming centers.

Be sure to dress in layers if outdoors. Make sure that pets and
livestock have adequate food, unfrozen water, and warmth. Cover or
tend to sensitive crops, plants, and vegetation.