FZHW60 PHFO 162115 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1115 AM HST Fri Oct 16 2026 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. PHZ105-170415- 1115 AM HST Fri Oct 16 2026 .Synopsis for the Hawaiian offshore waters... Surface high pressure far N of the area will move slowly E through Saturday and be replaced by stronger high pressure N of the offshore waters on Sunday. $$ PHZ180-170415- Hawaiian Offshore Waters- 1115 AM HST Fri Oct 16 2026 .THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. .TONIGHT THROUGH TUESDAY...E winds 15 to 25 kt. Seas 7 to 9 ft. $$