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Hazardous Seas Warning

Active

Columbia River Bar

Starts
Ends
Issued
Severity Moderate
Urgency Expected
Certainty Likely

Details

* WHAT...For the Small Craft Advisory, Rough bar conditions expected. Seas 10 to 14 ft at 14 seconds and southeast winds 10 to 20 kt with gusts up to 30 kt. For the Gale Warning, seas 15 to 20 ft at 20 seconds and south winds 25 to 35 kt with gusts up to 40 kt expected. For the Hazardous Seas Warning, very steep and hazardous seas 18 to 24 ft at 19 seconds and south winds 20 to 25 kt with gusts up to 30 kt expected.
* WHERE...In the Main Channel of the Columbia River Bar.
* WHEN...Small Craft Advisory, until 4 AM PST Friday. Gale Warning, from 4 AM to 7 PM PST Friday. Hazardous Seas Warning, from 7 PM Friday to 4 PM PST Saturday.
* IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Ebb current of 5.32 kt at 603 PM Thursday. Seas 13 to 14 ft. Ebb current of 2.44 kt at 643 AM Friday. Seas 12 to 14 ft. Ebb current of 4.93 kt at 638 PM Friday. Seas 13 to 18 ft.

Instructions

A Gale Warning means winds of 34 to 47 knots are imminent or occurring. Operating a vessel in gale conditions requires experience and properly equipped vessels. It is highly recommended that mariners without the proper experience seek safe harbor prior to the onset of gale conditions.
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