Official

Small Craft Advisory issued December 11 at 2:54AM PST until December 12 at 4:00PM PST by NWS Portland OR

* WHAT…Rough bar conditions expected. Seas 8 to 9 ft building to
10 to 11 ft Thursday afternoon at 15 seconds and southeast winds
15 to 20 kt with gusts up to 25 kt expected.

* WHERE…In the Main Channel of the Columbia River Bar.

* WHEN…Until 4 PM PST Thursday.

* IMPACTS…Conditions will be hazardous to small craft,
especially when operating near to, or attempting to cross, the
Columbia River Bar.

* ADDITIONAL DETAILS…Strong ebb current of 5.77 kt at 109 PM
Wednesday. Seas 9 to 10 ft. Ebb current of 3.31 kt at 131 AM
Thursday. Seas 9 ft. Very strong ebb current of 6.43 kt at 201
PM Thursday. Seas 13 to 14 ft.

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