High Surf Warning for San Francisco; Southern Monterey Bay and Big Sur Coast

Full official description

Bulletin details

* WHAT...For the Coastal Flood Advisory, Up to 1.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. For the Beach Hazards Statement, An increased risk for sneaker waves and strong rip currents with breaking waves of 15 to 20 ft expected. For the High Surf Warning, Dangerously large breaking waves of 25 to 30 ft expected. * WHERE...San Francisco and Southern Monterey Bay and Big Sur Coast Counties. * WHEN...For the Beach Hazards Statement, through Friday afternoon. For the Coastal Flood Advisory, until 4 PM PST Friday. For the High Surf Warning, from 6 PM Friday to 4 AM PST Sunday. * 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. Dangerously large breaking waves can overpower swimmers, pulling people into the sea from beaches, jetties, and rocks resulting in significant physical injury and increasing the risk of drowning. Waves can sweep across the shoreline without warning, pulling people into the sea from beaches, jetties, and rocks. * ADDITIONAL DETAILS...At the San Francisco tide gauge, high tide is expected to be: 1.4 ft above normal (7.2 ft MLLW) at 11:35 AM Wednesday 11/11, 1.3 ft above normal (7.1 ft MLLW) at 12:10 PM Thursday 11/12, 1.5 ft above normal (7.3 ft MLLW) at 12:49 PM Friday 11/13. These predictions include up to 1.5 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.