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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
Status
In Progress
Started about 1 hour ago
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
* WHAT...Very steep and hazardous seas 18 to 23 ft at 16 seconds through tonight. Monday, south winds becoming 20 to 30 kt with gusts up to 40 kt and steep wind-driven seas 10 to 14 ft. Conditions gradually diminishing through Tuesday.
* WHERE...All areas north of Cape Blanco.
* WHEN...The Hazardous Seas Warning is in effect until 1 AM PST Monday, followed by a Small Craft Advisory from 1 AM to 10 AM PST Monday. A Gale Warning is then in effect from 10 AM to 10 PM PST Monday, followed by a Small Craft Advisory from 10 PM Monday to 4 AM PST Wednesday.
* IMPACTS...Strong winds and very steep seas could capsize or damage vessels. Low visibility conditions are expected. Bar crossing will become exceptionally hazardous.
* View the hazard area in detail at https://go.usa.gov/x6hks
Instructions
Mariners should alter plans to avoid strong winds and very steep seas. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions.
Data from the National Weather Service
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