Massive Tidal Shift Creates 20+ Minute Long Waves In Alaska

Alaska Marine Highway System Board Works on Long-Range Plan - Alaska Business Magazine

HOME |  Alaska Marine Highway System Board Works on Long-Range Plan Two Alaska Marine Highway ferries pass in Lynn Canal, north of Juneau. Photo Credit: Dimitra Lavrakas …

Massive Tidal Shift Creates 20+ Minute Long Waves In Alaska

When most of us think of extreme sports in Alaska, we think of epic ski and snowboard runs with massive mountains and deep snow. Surfing doesn’t usually come to mind, but where there’s a wave, there’s somebody who’ll try to surf it. Tidal bores occur in places where an incoming high tide enters a shallow, sloping estuary, river, or harbor. As the tide flows toward land, a rapidly advancing wall of water suddenly raises the water level. These wav…