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. .TODAY...NW wind 20 kt. Seas 12 ft. Rain. .TONIGHT...NW wind 20 kt. Seas 10 ft. .WED...S wind 25 kt becoming SE 40 kt in the afternoon. Seas 11 ft. Rain. .WED NIGHT...S wind 40 kt. Seas 15 ft. .THU...SW wind 50 kt. Seas 39 ft. .FRI...W wind 45 kt. Seas 38 ft. .SAT...W wind 30 kt. Seas 19 ft.