FZHW51 PHFO 190125 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 325 PM HST Mon May 18 2026 .Synopsis for Hawaiian coastal waters... High pressure far northeast of the state will strengthen and expand in area towards the second half of the week. This will result in the trades strengthening to widespread strong speeds by Thursday. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY FOR MAALAEA BAY...THE PAILOLO AND ALENUIHAHA CHANNELS AND WATERS SOUTH OF THE BIG ISLAND... .TONIGHT...East winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 5 feet at 6 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .TUESDAY...East northeast winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 5 feet at 7 seconds and south southwest 3 feet at 14 seconds. Isolated showers. .TUESDAY NIGHT...East northeast winds 15 to 25 knots. Seas 6 to 8 feet. Wave Detail: East 6 feet at 7 seconds and south southwest 3 feet at 15 seconds. Isolated showers. .WEDNESDAY...East northeast winds 15 to 25 knots. Seas 7 to 9 feet. Wave Detail: East 7 feet at 7 seconds. Isolated showers. .WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Scattered showers. .THURSDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Isolated showers. .THURSDAY NIGHT...East northeast winds 20 to 30 knots. Seas 8 to 10 feet. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Isolated showers through the night. Scattered showers through the day. .SATURDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Isolated showers through the night. Scattered showers through the day. $$