


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
651 FZHW60 PHFO 171435 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 435 AM HST Sat May 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. PHZ105-172300- 435 AM HST Sat May 17 2025 .Synopsis for the Hawaiian offshore waters... High pressure to the nearly stationary to the NE will keep moderate to fresh trade winds in place through the forecast period. $$ PHZ180-172300- Hawaiian Offshore Waters- 435 AM HST Sat May 17 2025 .TODAY...E winds 10 to 20 kt. Seas 6 to 9 ft. Isolated thunderstorms from 18N to 20N between 158W and 155W. .TONIGHT THROUGH WEDNESDAY...E winds 10 to 20 kt. Seas 6 to 9 ft. Isolated thunderstorms NW Half through Monday. $$