Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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...SW wind 20 kt. Seas 6 ft. Rain. .TUE...S wind 30 kt. Seas 10 ft. Rain. .TUE NIGHT...SW wind 30 kt. Seas 12 ft. Rain. .WED...SW wind 25 kt. Seas 10 ft. .WED NIGHT...SW wind 30 kt. Seas 9 ft. .THU...W wind 30 kt. Seas 8 ft. .FRI THROUGH SAT...NW wind 25 kt. Seas 6 ft.