* WHAT...Rough bar conditions expected. Seas 8 to 12 ft at 12 seconds and north winds 10 to 20 kt with gusts up to 25 kt expected.
* WHERE...In the Main Channel of the Columbia River Bar.
* WHEN...From 11 AM Thursday to 8 AM PDT Friday.
* IMPACTS...Conditions will be hazardous to small craft, especially when operating near to, or attempting to cross, the Columbia River Bar.
* ADDITIONAL DETAILS...Ebb current of 3.28 kt at 210 PM Wednesday, Seas 4 ft. Ebb current of 3.79 kt at 217 AM Thursday,Seas 5 ft. Ebb current of 4.12 kt at 253 PM Thursday, Seas 6 ft.