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Hazardous Seas Warning
ActiveCoastal waters from Florence to Cape Blanco OR out 10 nm; Waters from Florence to Cape Blanco OR from 10 to 60 nm
Starts
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and steep swell dominated seas 10 to 14 ft at 14 seconds. South winds increase late tonight, 25 to 35 kt. Gale force gusts to 40 kt are possible at times tonight through Wednesday with seas becoming very steep and increasing to 14 to 16 ft at 14 seconds.
* WHERE...All areas.
* WHEN...For the Hazardous Seas Warning, until 4 PM PST Wednesday. For the Small Craft Advisory, from 4 PM Wednesday to 10 PM PST Thursday.
* IMPACTS...Gusty winds and/or very steep and hazardous seas could capsize or damage vessels. Bar crossings will become especially treacherous.
* ADDITIONAL DETAILS...A strong front will bring gales and the potential for storm force wind gusts Thursday night into Friday followed by a very large westerly ocean swell Friday night into Saturday. Very steep, hazardous waves could reach 25 to 30 feet or higher. Please stay tuned for updates on this high impact weather pattern.
* View the hazard area in detail at https://go.usa.gov/x6hks
Instructions
Recreational boaters should remain in port. Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve.
Data from the National Weather Service
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