Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TONIGHT...NW wind 20 kt. Seas 9 ft. .WED...S wind 20 kt increasing to 40 kt in the afternoon. Seas 10 ft. Rain. .WED NIGHT...S wind 40 kt. Seas 14 ft. Rain. .THU...SW wind 45 kt. Seas 28 ft. .THU NIGHT...W wind 50 kt. Seas 32 ft. .FRI...W wind 50 kt. Seas 31 ft. .SAT...W wind 30 kt. Seas 14 ft. .SUN...SW wind 35 kt. Seas 19 ft.