


Offshore Forecast
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
326 FZHW60 PHFO 072118 OFFHFO Offshore Waters Forecast for Hawaii National Weather Service Honolulu HI 1118 AM HST Sun Sep 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. PHZ105-080530- 1118 AM HST Sun Sep 7 2025 .Synopsis for the Hawaiian offshore waters... A weak trough will remain N of the area through today, then gradually shift W on Monday. As of the 07/2100 UTC, Hurricane Kiko is centered near 18.1N 145.5W and moving west-northwest at 11 knots. Hurricane Kiko is expected to begin impacting the eastern offshore waters on Monday and will be centered roughly 180 nm NNE of Hilo on September 9th at 8am HST as a Tropical Storm. Kiko will then continue to move west-northwest across the northern offshore waters, exiting the offshore waters late Wednesday night. KIKO FORECAST POSITIONS AND MAX WINDS 12H 08/0600Z 19.0N 147.1W 85 KT 100 MPH 24H 08/1800Z 20.2N 149.3W 70 KT 80 MPH 36H 09/0600Z 21.4N 151.7W 60 KT 70 MPH 48H 09/1800Z 22.6N 154.2W 55 KT 65 MPH 60H 10/0600Z 23.7N 156.9W 50 KT 60 MPH 72H 10/1800Z 24.6N 159.5W 45 KT 50 MPH 96H 11/1800Z 26.6N 163.9W 40 KT 45 MPH 120H 12/1800Z 28.3N 166.6W 35 KT 40 MPH $$ PHZ180-080530- Hawaiian Offshore Waters- 1118 AM HST Sun Sep 7 2025 ...HURRICANE WARNING... .THIS AFTERNOON...NW waters, variable winds 5 to 15 kt. SE waters, E to SE winds 10 to 15 kt. Seas 6 ft. Isolated thunderstorms NW Half. .TONIGHT...NW waters, variable winds 5 to 15 kt. SE waters, E to SE winds 10 to 20 kt. Seas 6 to 7 ft. Isolated thunderstorms NW Half. .MONDAY AND MONDAY NIGHT...Hurricane conditions expected E of 155W and N of 20N. Otherwise, E to SE winds 10 to 20 kt. Seas 6 to 12 ft. Isolated thunderstorms N of 20N.. .TUESDAY...Tropical storm conditions expected E of 160W and N of 23N. Otherwise, E to SE winds 10 to 20 kt. Seas 6 to 11 ft. Isolated thunderstorms N of 20N. .WEDNESDAY...Tropical storm conditions expected W of 157W and N of 23N. Otherwise, E to SE winds 10 to 20 kt. Seas 6 to 10 ft. Isolated thunderstorms N of 20N. .THURSDAY...E to SE winds 10 to 20 kt. Seas 5 to 9 ft. Isolated thunderstorms NW waters. $$