Also known as rip, rip tide
narrow current of water which moves directly away from the shore, cutting through the lines of breaking waves
Signs explaining how to escape from a rip current, posted at Mission Beach, San Diego, California As seen from above, this shows how a rip current works. Breaking waves cross a sand bar off the shore. The pushed-in water can most easily travel back out to sea through a gap in the sand bar. This flow creates a fast-moving rip current.
A rip current (or just rip) is a specific type of water current that can occur near beaches where waves break. A rip is a strong, localized, and narrow current of water that moves directly away from the shore, cutting through the lines of breaking waves, like a river flowing out to sea. The force of the current in a rip is strongest and fastest next to the surface of the water.
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