Natural Disaster. Waves generated by, and directly attributable to local winds, as opposed to swell waves, which have traveled over a considerable distance and produced by winds occurring at some previous time
National Oceanic and Atmospheric Administration's NOAA, Glossary of Some Terms Related to Rip Currents, U.S. Department of Commerce, Office of Climate, Water, and Weather Services, Silver Spring, MD, USA 2012. http://www.srh.noaa.gov/ripcurrents/glossary.shtml , (ND/ Rip Currents - Amer) {835}