FZHW60 PHFO 091501 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 501 AM HST Fri May 9 2025 Hawaiian offshore waters beyond 40 nautical miles out to 240 nautical miles including the portion of the Papahanaumokuakea Marine National Monument east of French Frigate Shoals Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. PHZ105-092315- 501 AM HST Fri May 9 2025 .Synopsis for the Hawaiian offshore waters... A surface ridge N of the area will remain strong through the weekend, then drift eastward early next week. $$ PHZ180-092315- Hawaiian Offshore Waters- 501 AM HST Fri May 9 2025 .TODAY...E winds 15 to 25 kt. Seas 6 to 9 ft. .TONIGHT THROUGH MONDAY...E winds 15 to 25 kt. Seas 6 to 9 ft. .TUESDAY...E winds 10 to 20 kt. Seas 6 to 9 ft. $$