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Hazardous Seas Warning
ActiveColumbia River Bar
Starts
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
* WHAT...For the Storm Warning, seas around 20 ft at 15 seconds and south winds 30 to 35 kt with gusts up to 48 kt. For the Hazardous Seas Warning, very steep and hazardous seas 15 to 19 ft at 17 seconds and south winds 15 to 25 kt with gusts up to 30 kt expected.
* WHERE...In the Main Channel of the Columbia River Bar.
* WHEN...Storm Warning, until 4 AM PST early this morning. Hazardous Seas Warning, from 4 AM early this morning to 7 PM PST Monday.
* IMPACTS...Very strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Ebb current of 2.07 kt at 822 AM Sunday. Seas 14 to 18 ft. Ebb current of 4.04 kt at 806 PM Sunday. Seas 18 to 21 ft. Ebb current of 2.12 kt at 927 AM Monday. Seas 16 to 19 ft.
Instructions
A Storm Warning means winds of 48 to 63 knots are imminent or occurring. Recreational boaters should remain in port, or take shelter until winds and waves subside. Commercial vessels should prepare for very strong winds and dangerous sea conditions, and consider remaining in port or taking shelter in port until winds and waves subside.
Data from the National Weather Service
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