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FILE - Beachgoers walk past warning flags and signs, Jan. 13, 2020, in Pompano Beach, Fla. About 100 people drown from rip currents along U.S. beaches each year, according to the U.S. Lifesaving Association, and more than 80 percent of beach rescues annually involve rip currents. (Joe Cavaretta/South Florida Sun-Sentinel via AP, File)
This image provided by NOAA, pictures a harmless green dye used to show a rip current. Rip currents are powerful, narrow channels of fast-moving water that are prevalent along the East, Gulf, and West coasts of the U.S., as well as along the shores of the Great Lakes. About 100 people drown from rip currents along U.S. beaches each year, according to the U.S. Lifesaving Association. (NOAA via AP)
FILE - A no swimming flag is visible as waves crash against the rocks at Haulover Beach Park, November 18, 2020, in Miami Beach, Florida. About 100 people drown from rip currents along U.S. beaches each year, according to the U.S. Lifesaving Association, and more than 80 percent of beach rescues annually involve rip currents. (David Santiago/Miami Herald via AP, File)