Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
541 FZHW60 PHFO 190303 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 503 PM HST Tue Nov 18 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. PHZ105-191030- 503 PM HST Tue Nov 18 2025 .Synopsis for the Hawaiian offshore waters... A surface ridge NE of the area will weaken through the evening as a front enters far NW waters and a weak trough lingers over central waters. The front will stall over far NW waters tonight then retreat N of the area on Wednesday as strong surface high pressure passes N of the region. The high will move slowly to the E through Sunday. $$ PHZ180-191030- Hawaiian Offshore Waters- 503 PM HST Tue Nov 18 2025 .TONIGHT...Front stalled over far NW waters. E winds 15 to 25 kt, except 20 to 30 kt far NW waters along front. Seas 6 to 8 ft, except seas 8 to 12 ft far NW waters. Isolated thunderstorms. .WEDNESDAY AND WEDNESDAY NIGHT...E winds 15 to 25 kt. Seas 7 to 12 ft. Isolated thunderstorms. .THURSDAY...E winds 15 to 25 kt. Seas 8 to 11 ft. Isolated thunderstorms far SW waters. .FRIDAY...E winds 10 to 20 kt, strongest SE half. Seas 7 to 10 ft. .SATURDAY AND SUNDAY...E winds 10 to 15 kt. Seas 6 to 10 ft. $$