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Hazardous Seas Warning
ActiveCoastal waters from Cape Falcon to Cape Foulweather OR out 10 nm; Coastal waters from Cape Foulweather to Florence OR out 10 nm
Starts
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
* WHAT...For the Small Craft Advisory, seas 9 to 13 ft at 15 seconds and south winds 15 to 25 kt with gusts up to 30 kt. For the Gale Warning, seas 17 to 22 ft at 20 seconds and south winds 25 to 35 kt with gusts up to 45 kt expected. For the Hazardous Seas Warning, very steep and hazardous seas 20 to 25 ft at 21 seconds and south winds 20 to 25 kt with gusts up to 30 kt expected.
* WHERE...Coastal waters from Cape Falcon to Cape Foulweather OR out 10 NM and Coastal waters from Cape Foulweather to Florence OR out 10 NM.
* WHEN...Small Craft Advisory, until 1 AM PST Friday. Gale Warning, from 1 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.
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.
Data from the National Weather Service
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