* WHAT…Large breaking waves of 18 to 22 feet in the surf zone.
* WHERE…North Coast and Central Coast zones.
* WHEN…Until 9 PM PST this evening.
* IMPACTS…Large waves may wash over beaches, jetties, and other
structures unexpectedly. Localized beach erosion is possible.
People can be swept off rocks and jetties, and drown while
observing high surf.
* ADDITIONAL DETAILS…Waves just offshore will be long period
with a dominant period of 20 to 22 seconds. This will enhance
the risk for beach erosion and infrastructure damage on west or
southwest facing beaches.