* WHAT…A moderate to long period west to northwest swell will
result in an increasing risk of sneaker waves and rip currents.
Sneaker waves breaking between 10 and 13 feet. For the High Surf
Advisory, expect large west swell with breaking waves 15 to 18
feet, including breakers near 20 feet are possible.
* WHERE…San Francisco, Coastal North Bay Including Point Reyes
National Seashore, San Francisco Peninsula Coast, Northern
Monterey Bay and Southern Monterey Bay and Big Sur Coast
Counties.
* WHEN…For the Beach Hazards Statement, until 6 PM PST this
evening. For the High Surf Advisory, from 6 AM Saturday to 4
PM PST Sunday.
* IMPACTS…Sneaker waves can sweep across the beach without
warning, pulling people into the sea from rocks, jetties, and
beaches. Inexperienced swimmers should remain out of the water
due to dangerous surf conditions. Sudden immersion in cold
water can result in cold water shock even for the most
experienced swimmers. Cold water shock can result in dramatic
changes in breathing, heart rate and blood pressure, greatly
increasing the risk of drowning in rough open waters.