FZHW60 PHFO 071507 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 507 AM HST Mon Apr 7 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. PHZ105-072315- 507 AM HST Mon Apr 7 2025 .Synopsis for the Hawaiian offshore waters... A strong high pressure system will remain far NW of Kauai today. The high will weaken from tonight through Tuesday, then rebuild far N of the state by Wednesday. $$ PHZ180-072315- Hawaiian Offshore Waters- 507 AM HST Mon Apr 7 2025 .TODAY...NE winds 15 to 25 kt. Seas 7 to 12 ft. .TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .TUESDAY AND TUESDAY NIGHT...NE winds 10 to 20 kt. Seas 6 to 9 ft. .WEDNESDAY THROUGH FRIDAY...NE winds 15 to 25 kt. Seas 6 to 10 ft. $$