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...S wind 30 kt becoming SW 40 kt after midnight. Seas 15 ft. Rain showers. .SAT...SW wind 40 kt. Seas 18 ft. Rain showers. .SAT NIGHT...W wind 30 kt. Seas 16 ft. Rain showers. .SUN AND SUN NIGHT...NW wind 30 kt. Seas 11 ft. .MON...NW wind 30 kt. Seas 11 ft. .TUE...W wind 20 kt. Seas 7 ft. .WED...N wind 20 kt. Seas 4 ft.