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| San Juan rocks |
San Juan rocks
Many of the rock types exposed in the San Juan area are also visible in the Western Domain of the North Cascades.
These rocks were involved in multiple subduction zone collisions
occurring over a time span of 500 to 100 million years ago. Many
terranes were added to the continent during this time, originating from
far locations. These include the Nooksack and Chilliwack River terranes,
made of volcanic rocks and sands from distant island arcs, and the Bell
Pass mélange and Easton terranes, consisting of ocean floor deposits,
bits and pieces of oceanic crust, and rocks from the upper mantle. (WDNR WA100)
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West Entrance U.S. Waters Strait Of Juan De Fuca- 254 PM PST Thu Jan 22 2026
FRI E wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 4 seconds, W 3 ft at 12 seconds and W 4 ft at 15 seconds.
FRI NIGHT E wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 3 ft at 4 seconds and W 4 ft at 14 seconds.
SAT E wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 2 ft at 3 seconds and W 4 ft at 13 seconds.
SAT NIGHT E wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 12 seconds.
SUN E wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 12 seconds.

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