Weather Alerts For Hayward, CA

# HEADLINE -------------------- COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 5 PM PDT FRIDAY # DETAILS -------------------- WHAT Up to 2.1 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. WHERE Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. WHEN Until 5 PM PDT Friday. IMPACTS High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas. More substantial impacts are expected along bayshore Marin County where increased flooding is anticipated across low lying areas. ADDITIONAL DETAILS At the San Francisco tidal gauge, high tide is expected to be 2.1 ft above normal (7.9 ft MLLW) at 12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, 1.7 ft above normal (7.5 ft MLLW) at 01:43 PM Thursday 10/29, and 1.6 ft above normal (7.4 ft MLLW) at 02:39 PM Friday 10/30. These predictions include up to 1.2 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively. ISSUED AT Monday, October 26, 2026 at 8:59 PM PDT ISSUED BY National Weather Service San Francisco CA HEADER Coastal Hazard Message # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- 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. # AREAS AFFECTED -------------------- San Francisco Bay Shoreline, Southern Monterey Bay and Big Sur Coast, North Bay Interior Valleys, Northern Monterey Bay, San Francisco