Offshore Waters Forecast for the Bering Sea 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...S wind 35 to 50 kt. Seas 6 to 11 ft building to 9 to 17 ft in the afternoon. Rain. .TONIGHT...S wind 55 to 70 kt becoming SW 35 to 50 kt after midnight. Seas 16 to 26 ft. Rain. .THU...SW wind 25 to 40 kt. Seas 14 to 26 ft. .THU NIGHT...SW wind 25 to 40 kt. Seas 16 to 26 ft. .FRI...SW wind 25 to 40 kt. Seas 15 to 26 ft. .SAT THROUGH SUN...W wind 20 to 30 kt. Seas 10 to 18 ft.