Waves up to 35 feet, with some sets to 50, forecast on the Bay Area coast tonight; more rain due Sunday

Breaking waves of 25 to 35 feet, with occasional sets of 40 to 50 feet, are forecast along the Bay Area coast from 6 p.m. Friday to 4 a.m. Sunday, according to a high surf warning from the National Weather Service.  It covers the coast from Point Reyes through San Francisco, the Peninsula and Monterey Bay to Big Sur.

A coastal flood advisory runs until 4 p.m. Friday for the San Francisco Bay shoreline and the North Bay valleys.  Up to 1.5 feet of water is possible in low-lying areas near the shore and tidal creeks.  The San Francisco tide gauge expects high tide of 7.3 feet at 12:49 p.m., 1.5 feet above normal; storm surge accounts for up to 1.8 feet.  High tide comes up to 90 minutes later in the South Bay.

Forecasters warn of road closures and erosion, and say waves can sweep people off beaches, jetties and rocks without warning.  A second advisory from midnight to 6 p.m. Saturday covers the ocean coast, where waves may crash over seawalls.

In San Jose, Friday’s storm should taper overnight.  Rain returns after 10 a.m. Sunday, with a 90% chance and a quarter to half an inch possible, then a chance of showers Monday.

Source:  National Weather Service high surf warning and San Jose forecast.