Click the link below the picture
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Rushing along at speeds of up to 24 miles per hour, tidal bores are an unusual, unforgettable sight in Southcental Alaska. A unique combination of hydrology and geography forms these waves. Cook Inlet has a huge tidal range, and it’s the only place in the U.S. where such a bore tide forms. These extreme tides hit the narrow, shallow and gently sloping floor of Turnagain Arm. Rapidly rising tidewaters are forced up, forming a raised front. Depending on conditions, the bore can be up to 6 feet tall.
It takes hours for a wave to travel from the mouth of Turnagain Arm all the way to far end. Imagine one wave stretched out like a wide carpet, unrolling in froth as it sweeps into a basin of water.
The largest bores occur during extreme minus tides with the full and new moon cycles. The bore wave typically shows up after low tide in Anchorage.
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Click the link below for the article:
https://www.anchorage.net/blog/alaska-bore-tide-viewing/
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