Waarschuwingen

High Surf Advisory issued December 21 at 12:47AM PST until December 22 at 4:00PM PST by NWS San Francisco CA* WHAT...Expect large westerly swell with breaking waves of 20 to26 feet, including breakers near 30 feet at favored spots suchas Mavericks.* WHERE...San Francisco, Coastal North Bay Including Point ReyesNational Seashore, San Francisco Peninsula Coast, NorthernMonterey Bay and Southern Monterey Bay and Big Sur Coast.* WHEN...From 6 AM this morning to 4 PM PST Sunday.* IMPACTS...Dangerous swimming and surfing conditions andlocalized beach erosion. Large waves can sweep across thebeach without warning, pulling people into the sea from rocks,jetties and beaches. Sudden immersion in cold water can resultin 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 ofdrowning in rough open waters.Inexperienced swimmers should remain out of the water due todangerous surf conditions.

National Weather Service