Rip currents - San Francisco

Rip currents can be extremely dangerous, dragging swimmers away from the beach and leading to death by drowning when they attempt to fight the current and become exhausted. Although a rare event, rip currents can be deadly for non-swimmers as well: a person standing waist deep in water can be dragged out into deeper waters, where they can drown if they are unable to swim and are not wearing a flotation device. Some beaches are more likely to have strong rip currents than others, and a few are particularly well known for them, the overall topography of the area being the main factor.Rip currents cause approximately 100 deaths annually in the United States, more than all other natural hazards except heat and floods. Over 80% of rescues by surf beach lifeguards are due to rip currents totaling 18,000 lifeguard rescues a year.