Active Weather Alerts
Special Weather Statement
Issued: 5:42 AM Apr. 12, 2026 – National Weather Service
...A STRONG THUNDERSTORM WILL IMPACT CENTRAL SAN MATEO COUNTY UNTIL 1115 PM PDT... At 1042 PM PDT, Doppler radar was tracking a strong thunderstorm near Half Moon Bay, or 8 miles southwest of Belmont, moving northeast at 35 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... San Mateo, Redwood City, Foster City, San Carlos, Belmont, Half Moon Bay, Hillsborough, Atherton, Woodside, Highlands-Baywood Park, North Fair Oaks, Highlands and Emerald Lake Hills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely and be alert for threatening weather conditions. && MAX HAIL SIZE...0.25 IN; MAX WIND GUST...40 MPH
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