Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
027 FZHW60 PHFO 171517 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 517 AM HST Mon Nov 17 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. PHZ105-172230- 517 AM HST Mon Nov 17 2025 .Synopsis for the Hawaiian offshore waters... A high pressure ridge N of the Hawaiian Islands will drift E as a front approaches the state from the NW. The front will enter the NW offshore waters Tuesday, with near gale-force winds behind the front. A new high pressure will build N of the area midweek. Isolated thunderstorms are possible through much of the forecast period. $$ PHZ180-172230- Hawaiian Offshore Waters- 517 AM HST Mon Nov 17 2025 .TODAY...E winds 10 to 20 kt. Seas 6 to 7 ft. Isolated thunderstorms SE Waters. .TONIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. Isolated thunderstorms. .TUESDAY AND TUESDAY NIGHT... Cold front entering NW waters. N of 22, NE winds 20 to 30 kt. Elsewhere, NE winds 15 to 25 kt. Seas 6 to 7 ft. Isolated thunderstorms. .WEDNESDAY AND THURSDAY...E winds 20 to 30 kt. Seas 7 to 11 ft. Isolated thunderstorms. .FRIDAY...E winds 15 to 25 kt. Seas 8 to 10 ft. $$