Active Weather Alerts
Special Weather Statement
Issued: 1:32 AM Apr. 12, 2026 – National Weather Service
...A LINE OF SHOWERS WILL IMPACT EASTERN CONTRA COSTA...NORTHERN SANTA CLARA AND SOUTHEASTERN ALAMEDA COUNTIES UNTIL 715 PM PDT... At 632 PM PDT, Radar reported a line of showers extending from over Antioch to over Alum Rock, or extending from over Antioch to near Milpitas, moving east at 25 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Public reported. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Fremont, Concord, Antioch, Livermore, Pleasanton, Pittsburg, Dublin, Danville, Oakley, Brentwood, Discovery Bay, Clayton, Byron, Blackhawk-Camino Tassajara, Blackhawk, Sunol, Knightsen and West Pittsburg Cdp. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely and be alert for threatening weather conditions. && MAX HAIL SIZE...0.75 IN; MAX WIND GUST...50 MPH
Small Craft Advisory
Issued: 9:36 PM Apr. 11, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...South winds 15 to 25 kt with gusts up to 35 kt and rough waters expected. * WHERE...San Francisco Bay South of the Bay Bridge. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Marine Weather Statement
Issued: 1:21 PM Apr. 11, 2026 – National Weather Service
...THUNDERSTORMS EXPECTED ACROSS THE COASTAL WATERS AND BAYS THROUGH THE WEEKEND... There will be a chance for thunderstorms through the weekend. The greatest potential will be Saturday afternoon through Sunday morning. Thunderstorms will bring the threat of cloud to ocean lightning, strong and erratic winds, brief heavy rain, small hail, and isolated waterspouts. These conditions can create hazardous ocean conditions, especially for smaller vessels. Mariners are advised to have a plan to reach safe harbor quickly if thunderstorms develop.
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