* WHAT...Rough bar conditions expected. For the Hazardous Seas Warning, very steep and hazardous seas 11 to 14 ft at 9 seconds and west winds 20 to 25 kt with gusts up to 30 kt. For the first Small Craft Advisory, seas 8 to 9 ft at 9 seconds and northwest winds 10 to 15 kt expected. For the second Small Craft Advisory, seas 5 to 7 ft at 8 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...Hazardous Seas Warning, until 5 PM PDT this afternoon. Small Craft Advisory, from 5 PM this afternoon to 11 PM PDT this evening. Small Craft Advisory, from 5 PM Saturday to 5 AM PDT Sunday. * IMPACTS...Very steep and hazardous seas could capsize or cause damage to vessels. * ADDITIONAL DETAILS...Ebb current of 4.9 kt at 444 PM Friday. Seas 8 to 9 ft. Ebb current of 4.96 kt at 456 AM Saturday. Seas 5 ft. Ebb current of 5.5 kt at 517 PM Saturday. Seas 5 to 6 ft. A Hazardous Seas Warning means hazardous sea conditions are imminent or occurring. Recreational boaters should remain in port, or take shelter until waves subside. Commercial vessels should prepare for rough seas and consider remaining in port or taking shelter in port until hazardous seas subside.