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...N wind 20 kt. Seas 7 ft. .WED...Variable wind 10 kt. Seas 4 ft. .WED NIGHT...SE wind 25 kt increasing to 40 kt after midnight. Seas 7 ft building to 14 ft after midnight. .THU...S wind 50 kt. Seas 22 ft. .THU NIGHT...S wind 25 kt. Seas 12 ft. .FRI THROUGH SAT...S wind 30 kt. Seas 13 ft. .SUN...S wind 20 kt. Seas 9 ft.