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Tidal Race

*** Shopping-Tip: Tidal Race
'''Tidal race''' (tidal rapid) is a natural occurrence whereby a fast moving tide passes through constriction resulting in the formation of waves, eddy (fluid dynamics) eddies and hazardous ocean current currents. The contraction can be a passage where the sides narrow, for example the Gulf of Corryvreckan, or an underwater obsruction such as a reef or rising seabed, such as the Isle of Portland Portland Race. In extreme cases, such as Skookumchuck Narrows in British Columbia, through which tides can travel at more than 17 knot (speed) knots, very large whirlpools form which are extreme hazards to navigation.

See also
* Tidal bore * Rip current. {{geo-term-stub}} Category:Tide Category:Whirlpools see Tidal race