Coastal flooding and beach erosion are possible through Monday during the annual ocean phenomenon known as king tides. Waves carrying sand and rocks are likely to wash over The Strand in Oceanside, the parking lots at Tamarack Avenue beach in Carlsbad and Cardiff State Beach in Encinitas, and other low spots along the coast. Parts of Highway 101 have been closed temporarily to clean up debris and repair damage left by the seasonal tides and waves in recent years.