* WHAT...Large breaking waves of 10 to 15 feet with dangerous rip currents. Largest on northwest facing beaches. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...From 3 PM Friday to 9 AM PDT Monday. * IMPACTS...There is an increased risk for ocean drowning. Rip currents can pull swimmers and surfers out to sea. Large breaking waves can cause injury, wash people off beaches and rocks, and capsize small boats near shore. * ADDITIONAL DETAILS...Minor Beach erosion and isolated minor coastal flooding is possible. Most likely during the evening high tides (7pm to 11pm) on Saturday and Sunday.