Cold Weather Advisory

Locations Affected

San Jose, CA ∙ Santa Rosa, CA ∙ Sunnyvale, CA ∙ Salinas, CA ∙ Santa Clara, CA ∙ Burbank, CA ∙ Antioch, CA ∙ Concord, CA ∙ Livermore, CA ∙ Napa, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Francisco CA 1154 PM PST Wed Jan 7 2026 ...COLD WEATHER ADVISORY IN EFFECT FROM 1 AM TO 9 AM PST FRIDAY... * WHAT...Cold conditions with temperatures in the low to mid 30s expected. * WHERE...The East Bay Hills and Valleys, Monterey Bay and the Big Sur Coast, The Marin Hills, The Santa Cruz Mountains, The Santa Clara Valley, North Bay Interior Valleys, and Northern Salinas Valley/Hollister Valley and Carmel Valley. * WHEN...From 1 AM to 9 AM PST Friday. * 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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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