...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST THURSDAY...
* WHAT...Large breaking waves of 19-23 feet.
* WHERE...San Francisco, Coastal North Bay Including Point Reyes
National Seashore, San Francisco Peninsula Coast and Southern
Monterey Bay and Big Sur Coast Counties.
* WHEN...From 4 AM Wednesday to 4 AM PST Thursday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion. Large waves can sweep across the
beach without warning, pulling people into the sea from rocks,
jetties, and beaches. These waves can also move large objects
such as logs, crushing anyone caught underneath.
* ADDITIONAL DETAILS...West and northwest facing beaches are
most at risk for large turbulent shore break and strong
currents. Never turn your back on the ocean!.

A High Surf Advisory means that high surf will affect beaches in
the advisory area, producing rip currents, localized beach
erosion and sneaker waves.