ALT A Cal OES fire engine with a palm tree blowing in the wind with smoke from a fire. Text reads prepositoned fire personnel and equipment with the Cal OES logo.

ALT Sneaker waves: Potentially deadly waves that suddenly surge much farther up the beach than expected, overtaking the unaware Dangers: Beach-goers can be swept into the ocean, powerful waves can roll logs and heavy debris along the beach, knocking over or pinning down unsuspecting beachgoers, can result in cold water immersion, which can be deadly Take Action: Arrive knowing the local weather, surf, and tide forecast, never turn your back on the ocean, watch the waves from higher ground for 20 minutes before moving closer to the water, continuing to watch until you leave

ALT South San Francisco's Sign Hill

ALT Rainfall totals across the Bay Area and Central Coast through Thursday night. Coastal regions within Santa Cruz and Monterey Counties and the Santa Lucia range will see around a tenth to a quarter of an inch of rain with localized values up to half an inch possible. Elsewhere in the Bay Area and interior Central Coast, less than a tenth of an inch of rain is expected outside of favored mountain areas where higher rain totals are possible.

ALT A Red Flag Warning graphic with north winds 20 to 30 MPH with gusts up to 35-45 MPH, locally higher up to 50 MPH in the Delta. Daytime Humidity 7 to 15 %, Overnight Humidity is 30-55%. 5 AM Saturday to 8 PM Monday. Easier fire starts & potential for rapid spread of fire. Fire safety precautions should be exercised to prevent fires. Always have an emergency plan for if a fire starts near you

ALT Blue tint with fire truck in the background and the words Prepositioned in front.

ALT Weather infographic from NWS San Francisco Bay Area titled "Strong Wind Gusts This Weekend," issued May 15, 2026. The text on the left specifies west to northwest gusts of 25-35 mph in valleys and 35-50 mph along the coast and ridges through Monday morning. Impacts include falling branches, blowing sand, difficult driving, and possible power outages. On the right, a color-coded map shows the Bay Area and Central Coast with projected wind gusts. Most inland areas (like Santa Rosa, Concord, and San Jose) are yellow/green, indicating 25-35 mph, while coastal areas and higher elevations (like San Francisco, Santa Cruz, and King City) show orange/yellow shadings for 35-45 mph gusts.

ALT Fire Weather Safety: Avoid outdoor burning. Properly dispose of cigarettes and matches. Avoid power equipment that creates sparks. Make sure no vehicle parts drag on the ground, including towing chains. Do not park your vehicle over dry grass/vegetation.