Offshore Forecast
Issued by NWS
Issued by NWS
006 FZHW61 PHFO 212136 OFFN10 NAVTEX MARINE FORECAST FOR HAWAIIAN WATERS NATIONAL WEATHER SERVICE HONOLULU HI 1136 AM HST MON SEP 21 2026 ...Please refer to Coastal Waters Forecasts available through NOAA Weather Radio and other means for detailed coastal forecasts... .Synopsis...A trough, which may develop into a tropical cyclone, will approach from the E on Tuesday and bring renewed thunderstorm potential through Friday. Fresh to strong trades continue through most of the week before strengthening heading into the $$ Hawaiian waters within 40 nautical miles including the channels- .TODAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East northeast 5 feet at 6 seconds and south southwest 4 feet at 13 seconds. Isolated showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East northeast 5 feet at 6 seconds, south southwest 4 feet at 13 seconds and northeast 3 feet at 12 seconds. Scattered showers. .TUESDAY...East northeast winds 20 to 25 knots. Seas 6 to 8 feet. Wave Detail: East northeast 5 feet at 6 seconds, north 3 feet at 12 seconds and south 3 feet at 12 seconds. Scattered showers. .TUESDAY NIGHT...East northeast winds 25 to 30 knots. Seas 5 to 7 feet. Wave Detail: East northeast 5 feet at 6 seconds and north 3 feet at 11 seconds. Scattered showers. .WEDNESDAY...East northeast winds 15 to 20 knots to Kauai...east northeast 25 to 30 knots elsewhere. Seas 5 to 8 feet. Scattered showers. .WEDNESDAY NIGHT...East northeast winds 25 to 30 knots. Seas 5 to 8 feet. Numerous showers. .THURSDAY...winds east northeast winds 25 to 35 knots. Seas 5 to 7 feet. Scattered showers with isolated thunderstorms. .FRIDAY...winds east northeast winds 30 to 40 knots. Seas 6 to 8 feet, building to 8 to 9 feet. Isolated thunderstorms through the night. Scattered showers. Winds and seas higher in and near tstms. $$ Hawaiian Offshore Waters- .THIS AFTERNOON...NE winds 15 to 25 kt. Seas 7 to 9 ft. Isolated thunderstorms SE Waters. .TONIGHT...E winds 10 to 20 kt NW Half, NE 15 to 25 kt SE Half. Seas 7 to 10 ft. Isolated thunderstorms SE Waters. .TUESDAY...E of 160W, E winds 15 to 25 kt. W of 160W, E winds 15 to 25 kt, becoming NE 10 to 15 kt in the afternoon. Seas 6 to 12 ft. Isolated thunderstorms SE Waters. .TUESDAY NIGHT...E of 160W, E winds 15 to 25 kt. W of 160W, NE winds 15 to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 6 to 12 ft. Isolated thunderstorms SE Waters. .WEDNESDAY...E winds 20 to 30 kt E of 160W and S of 22N, NE 10 to 20 kt elsewhere. Seas 6 to 11 ft. Isolated thunderstorms E of 160W. .THURSDAY...E winds 20 to 30 kt E of 160W and S of 22N, NE 10 to 20 kt elsewhere. Seas 7 to 10 ft. Isolated thunderstorms E of 160W. .FRIDAY...E winds 20 to 30 kt. Seas 7 to 11 ft. Isolated thunderstorms E of 160W. $$