
1) Dangerous outflow 2) Hazard to swimmers 3) Threat to a surfer
Found on
https://www.crosswordclues.com/clue/rip-current

A rip current, commonly referred to simply as a rip, or by the misnomer `rip tide`, is one specific kind of water current that can be found near beaches. It is a strong, localized, and rather narrow current of water. It is strongest near the surface of the water, and it moves directly away from the shore, cutting through the lines of breaking wa.....
Found on
http://en.wikipedia.org/wiki/Rip_current

narrow jetlike stream of water that flows sporadically seaward for several minutes, in a direction normal or nearly normal to a beach. Such currents ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/r/52

A strong water-surface current of short duration flowing seaward from the shore; the return movement of water piled up on the shore by incoming waves and wind. It usually appears as a visible band of agitated water; and, with the outward movement concentrated in a limited band, its velocity is somewhat accentuated. A rip current is often miscalled ...
Found on
http://www.encyclo.co.uk/local/20124

A strong, rapid, and brief current that flows out to sea, moving perpendicular to the shoreline.
Found on
http://www.encyclo.co.uk/local/22291

A strong, narrow current of high velocity and short duration that flows seaward through the breaker
Found on
http://www.encyclo.co.uk/local/22392

A current formed on the surface of a body of water by the convergence of currents flowing in opposite directions. Rip currents are common along coasts where longshore currents move in opposite directions.
Found on
http://www.evcforum.net/WebPages/Glossary_Geology.html

A strong relatively narrow current of water that flows seaward against breaking waves.
Found on
http://www.physicalgeography.net/physgeoglos/r.html

A current that flows strongly away from the sea shore through gaps in the surf zone at intervals along the shoreline.
Found on
http://www.scientificpsychic.com/etc/geology-glossary.html

A strong surface current of short duration flowing seaward from the shore. It usually appears as a visible band of agitated water and is the return movement of water piled up on the shore by incoming waves and wind.
Found on
http://www.stripers247.com/Fishing-Glossary.php

a strong current flowing outward from the shore. Such currents can be dangerous to the uninitiated swimmers, but are often used by divers to facilitate entry to areas beyond the bar or reef.
Found on
https://dipndive.com/blogs/stories/diving-lingo-101-glossary-of-terms-phras

A concentrated rapid current moving offshore from a beach fronting a longshore current
Found on
https://www.encyclo.co.uk/local/20125

A strong surface current of short duration flowing seaward from the shore. It usually appears as a visible band of agitated water and is the return movement of water piled up on the shore by incoming waves and wind. A rip current consists of three parts the FEEDER CURRENT flowing parallel to the shore inside the BREAKERS; the NECK, where the FEEDER...
Found on
https://www.encyclo.co.uk/local/20127

Carries excess water in the longshore current out through the surf zone where it dissipates.
Found on
https://www.encyclo.co.uk/local/22327
No exact match found.