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No Protection
Posted by Doug from Anchorage on Apr 03 2006
I'm not sure what "protected" waters you are referring to. The Portage glacier pass causes extreme winds to blow across passage canal. At least five different wind vectors have been identified in the Whittier area.  All have different velocities and duration factors relative to seasonal changes and geography of Passage Canal.  The two strongest winds blow east and west respectively, along the axis of the Canal.  The winds blow hardest when a steep pressure gradient exists between Prince William Sound and Cook Inlet.  Winds ranging from 40 to 50 miles per hour are not uncommon during these conditions and may generate waves between four and six feet in the center of Passage Canal. Also, most times the conditions outside of Passage Canal are the exact opposite. Flat & calm. I would strongly suggest you carefully study the weather. Particularly, the pressure differences between PWS and Cook Inlet.

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