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NOAA's National Weather Service
Each location shows all alerts on one page:
WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
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| Sonoma County | ||
| Effective: Fri, 12/5 12:49pm | Severity: Minor | |
| Updated: December 5, 2025 10:01 pm | Urgency: Expected | |
| Expires: Sat, 12/6 5:00am | Certainty: Likely | |
| Areas Affected: San Francisco - North Bay Interior Valleys - San Francisco Bay Shoreline - Northern Monterey Bay - Southern Monterey Bay and Big Sur Coast | ||
Alert
Details:
* WHAT...Up to 1.7 ft of inundation above ground level is possible in low lying areas near shorelines and tidal waterways. * WHERE...Bayshore locations along San Francisco and Monterey Bay. * WHEN...Until 3 PM PST Sunday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...The San Francisco tidal gauge high tide is expected to be 1.7 ft above normal (7.51 ft MLLW) at 11:25 AM Saturday and 0.9 ft above normal (6.75 ft MLLW) at 12:17 PM Sunday. High tide timing varies up to 90 minutes earlier or later along the Pacific Coast and throughout the San Francisco Bay respectively. Information: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. |
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| Sonoma County | ||
| Effective: Fri, 12/5 9:19pm | Severity: Moderate | |
| Updated: December 5, 2025 10:01 pm | Urgency: Expected | |
| Expires: Sat, 12/6 5:30am | Certainty: Likely | |
| Areas Affected: Marin Coastal Range - North Bay Interior Mountains - North Bay Interior Valleys | ||
Alert
Details:
* WHAT...Cold conditions with temperatures as low as 33. * WHERE...The Marin Hills, North Bay Interior Mountains, and North Bay Interior Valleys. * WHEN...Until 8 AM PST Saturday. * 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: Cover or tend to sensitive crops, plants, and vegetation. 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. |
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