Offshore Forecast
Issued by NWS
Issued by NWS
519 FZHW61 PHFO 211528 OFFN10 NAVTEX MARINE FORECAST FOR HAWAIIAN WATERS NATIONAL WEATHER SERVICE HONOLULU HI 528 AM HST TUE JAN 21 2025 ...Please refer to Coastal Waters Forecasts available through NOAA Weather Radio and other means for detailed coastal forecasts... .Synopsis...A surface ridge just N of the area will weaken and move S through the day as a front approaches then moves into far NW waters tonight. The front will move across central waters Wednesday, then stall and weaken near the Big Island Thursday, as an associated low develops 600 to 700 nm N of Hawaii. A weak ridge will develop over central waters Thursday, then lift to the NE. $$ Hawaiian waters within 40 nautical miles including the channels- .TODAY...East winds 10 to 15 knots becoming variable less than 10 knots in the afternoon. Seas 4 to 7 feet. Wave Detail: Northwest 4 to 5 feet at 11 to 12 seconds and northeast 3 feet at 8 seconds. Isolated showers. .TONIGHT...Variable winds less than 10 knots, becoming west 10 to 15 knots around Kauai and Oahu late. Seas 6 to 9 feet. Wave Detail: Northwest 6 to 7 feet at 17 seconds and northeast 3 feet at 8 seconds. Isolated showers, becoming scattered near Kauai late. .WEDNESDAY...West to northwest winds 15 to 25 knots Kauai and Oahu waters. Southwest winds 10 to 20 knots Maui County and Big Island waters. Seas 7 to 11 feet. Wave Detail: Northwest 7 to 10 feet at 14 seconds. Numerous showers with isolated thunderstorms Kauai and Oahu waters. Isolated showers Maui County and Big Island waters. .WEDNESDAY NIGHT...Northwest winds 15 to 20 knots, except southwest winds 15 to 20 knots Big Island waters. Seas 8 to 12 feet. Detail: Northwest 6 to 8 feet at 13 seconds. Scattered showers. Numerous showers with isolated thunderstorms Oahu and Maui County waters and isolated showers Kauai and Big Island waters. .THURSDAY...Northwest winds 10 to 20 knots. Seas 6 to 9 feet. Numerous showers with isolated thunderstorms Maui County and Big Island waters and isolated showers Kauai and Oahu waters. .FRIDAY...Variable winds 10 to 15 knots. Seas 6 to 9 feet. Isolated showers, except scattered showers Big Island waters. .SATURDAY...East northeast winds 10 to 20 knots. Seas 5 to 7 feet. Scattered showers. $$ Hawaiian Offshore Waters- .TODAY...NW Half, E winds 10 kt, becoming variable less than 10 kt by noon. SE Half, NE to E winds 10 to 15 kt. Seas 5 to 8 ft. .TONIGHT...Front moving across NW waters from 25N156W to 21N164W. N of front, NW to W winds 15 to 25 kt. Remainder of NW half, variable winds 5 to 15 kt. SE half, variable winds 10 kt. Seas 6 to 12 ft over NW waters and seas 4 to 6 feet over SE waters. Isolated thunderstorms along front. .WEDNESDAY AND WEDNESDAY NIGHT...Front moving across central waters. NW of front, W to NW winds 15 to 25 kt. SE of front, SE winds 10 to 20 kt. Seas 8 to 12 ft over NW waters and seas 5 to 8 feet over SE waters. Isolated thunderstorms along front. .THURSDAY...Front from 22N151W to 17N160W. NW of front, N to NW winds 10 to 20 kt. SE half, variable winds 5 to 15 kt. Seas 8 to 15 ft, highest NW half. Isolated thunderstorms far NE waters along front. .FRIDAY...Front dissipated. N of 22N, W to NW winds 10 to 15 kt. S of 22N, NE to E winds 10 to 15 kt. Seas 7 to 12 ft. .SATURDAY...E winds 10 to 20 kt. Seas 6 to 8 ft. $$