FZHW61 PHFO 190307 OFFN10 NAVTEX MARINE FORECAST FOR HAWAIIAN WATERS NATIONAL WEATHER SERVICE HONOLULU HI 507 PM HST MON MAY 18 2026 ...Please refer to Coastal Waters Forecasts available through NOAA Weather Radio and other means for detailed coastal forecasts... .Synopsis...High pressure far NE of the state will strengthen and expand towards the middle of the week, which will result in widespread strong trades by Thursday. $$ Hawaiian waters within 40 nautical miles including the channels- .TONIGHT...East winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 5 feet at 6 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .TUESDAY...East northeast winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 5 feet at 7 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .TUESDAY NIGHT...East northeast winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 6 feet at 7 seconds and south southwest 3 feet at 15 seconds. Isolated showers. .WEDNESDAY...East northeast winds 15 to 25 knots. Seas 7 to 9 feet. Wave Detail: East 7 feet at 7 seconds. Isolated showers. .WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Scattered showers. .THURSDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Isolated showers. .THURSDAY NIGHT...East northeast winds 20 to 30 knots. Seas 8 to 10 feet. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Isolated showers through the night. Scattered showers through the day. .SATURDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Isolated showers through the night. Scattered showers through the day. $$ Hawaiian Offshore Waters- .TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUESDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. .TUESDAY NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. .WEDNESDAY...E winds 15 to 25 kt. Seas 7 to 9 ft. .WEDNESDAY NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. .THURSDAY...E winds 20 to 30 kt. Seas 8 to 11 ft. .FRIDAY...NE winds 20 to 25 kt. Seas 9 to 10 ft. .SATURDAY...E winds 15 to 25 kt. Seas 8 to 10 ft. $$