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Small Craft Advisory
ActiveColumbia River Bar
Status
In Progress
Started about 1 hour ago
Ends
Issued
Severity
Minor
Urgency
Expected
Certainty
Likely
Details
* WHAT...Rough bar conditions expected. For the first Small Craft Advisory, seas 5 to 7 ft at 14 seconds and south winds 15 to 20 kt with gusts up to 30 kt expected. For the second Small Craft Advisory, seas 9 to 12 ft at 15 seconds. For the Gale Watch, seas 14 to 19 ft at 16 seconds and south winds 20 to 30 kt with gusts up to 35 kt possible.
* WHERE...In the Main Channel of the Columbia River Bar.
* WHEN...Small Craft Advisory, until 10 PM PST this evening. Small Craft Advisory, from 7 AM to 10 PM PST Thursday. Gale Watch, from Thursday evening through Friday afternoon.
* IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Ebb current of 4.3 kt at 1254 PM Wednesday. Seas 5 to 6 ft. Ebb current of 3.96 kt at 108 AM Thursday. Seas 7 to 8 ft. Ebb current of 5.0 kt at 144 PM Thursday. Seas 10 ft.
Instructions
A Gale Watch is issued when the risk of gale force winds of 34 to 47 knots has significantly increased, but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans.
Data from the National Weather Service
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