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DON'T DRINK AND SWIMCALL 911 first for any emergency.
Rip currents are life-threatening to anyone entering the surf. Undertow is a concern mostly for weak swimmers or the unfortunate non-swimmer.
Longshore Currents are simply the current that moves along the beach, usually in the direction that the wind is blowing or the waves are breaking.
You will notice the longshore current as you enter the water, causing you to drift along the beach. Not a hazard for swimmers, unless there is a north wind, the longshore current will sweep you towards the jetty where it will become a rip current sucking out to sea.
The undertow disperses almost immediately until the next wave approaches, then the cycle starts again.An undertow can drown a person just feet from safety.Riptides are found in channels, passes and cuts through which large volumes of water travel from the bay to the surf during the tidal exchange. Rip currents are commonly and mistakenly called riptides. Eventually, the excess water starts to return seaward through low areas in the sandbar, "ripping" an opening. Rip currents Typically, strong wind and swell waves push water over a sandbar allowing excess water to collect.
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High tide will cause more powerful waves to break closer to shore and deeper water near shore..