Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
045 FZHW60 PHFO 041646 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 646 AM HST Fri Sep 4 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. PHZ105-042230- 646 AM HST Fri Sep 4 2026 .Synopsis for the Hawaiian offshore waters... Surface high pressure will remain far N of the waters through the forecast period. At 0500 AM HST Hurricane Lowell was centered at 13.3N 160.1W and moving W at 7 kts. Lowell will continue W as the center of the cyclone passes just south of offshore waters. Lowell is expected to curve towards the north Sunday into early next week with Hurricane conditions possible Sunday night into Monday over the SW and W offshore waters. Hurricane Karina in the far E Pacific is now expected stay NE of the offshore waters. LOWELL FORECAST POSITIONS 200 PM HST FRIDAY 13.2N 161.1W 200 AM HST SATURDAY 13.4N 162.3W 200 PM HST SATURDAY 13.8N 163.3W 200 AM HST SUNDAY 14.5N 163.8W 200 PM HST SUNDAY 15.7N 163.9W 200 AM HST MONDAY 17.4N 163.4W 200 AM HST TUESDAY 22.2N 162.6W 200 AM HST WEDNESDAY 26.8N 163.1W 200 AM HST THURSDAY 29.1N 165.9W 200 AM HST FRIDAY 30.5N 169.1W $$ PHZ180-042230- Hawaiian Offshore Waters- 646 AM HST Fri Sep 4 2026 ...HURRICANE CONDITIONS POSSIBLE SUNDAY AND MONDAY... .TODAY...E winds 15 to 25 kt. Seas 8 to 12 ft. Isolated thunderstorms SE Waters. .TONIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. Isolated thunderstorms SE Waters. .SATURDAY...E winds 15 to 25 kt. Seas 8 to 11 ft. Isolated thunderstorms SE Waters. .SATURDAY NIGHT...E winds 15 to 25 kt. Seas 8 to 10 ft. Isolated thunderstorms SE Waters. .SUNDAY...Hurricane conditions possible...E winds 25 to 35 kt NW Half, E 15 to 25 kt SE Half. Seas 8 to 11 ft. Isolated thunderstorms S of 20N. .MONDAY...Hurricane conditions possible W of 160W... E winds 95 to 105 kt NW Half, SE 20 to 30 kt SE Half. Seas 9 to 19 ft. Scattered thunderstorms NW Half, isolated thunderstorms SE Waters. .TUESDAY...Hurricane conditions possible W of 160W... S winds 80 to 90 kt NW Half, E 10 to 20 kt SE Half. Seas 10 to 20 ft. Isolated thunderstorms NW Half. $$