FZHW51 PHFO 190155 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 355 PM HST Mon Aug 18 2025 .Synopsis for Hawaiian coastal waters... A ridge of high pressure far north of the state will help maintain fresh to locally strong trade winds throughout the week. $$ Hawaiian waters within 40 nautical miles including the channels- ...SMALL CRAFT ADVISORY THROUGH EARLY WEDNESDAY MORNING FOR MAALAEA BAY...THE PAILOLO AND ALENUIHAHA CHANNELS AND WATERS SOUTH OF THE BIG ISLAND... .TONIGHT...East winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds. Hazy. A chance of showers. .TUESDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: East 5 feet at 6 seconds. Hazy. A slight chance of showers. .TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: East 5 feet at 6 seconds. Hazy. A slight chance of showers. .WEDNESDAY...East northeast winds 25 to 30 knots Alenuihaha Channel...east northeast 15 to 20 knots elsewhere. Seas 5 to 8 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at 15 seconds. Hazy. A slight chance of showers. .WEDNESDAY NIGHT...East winds 20 to 25 knots. Seas 5 to 8 feet. A chance of showers. .THURSDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers. .THURSDAY NIGHT...East northeast winds 25 to 30 knots Alenuihaha Channel...east northeast 15 to 20 knots elsewhere. Seas 5 to 8 feet. A chance of showers. .FRIDAY...Alenuihaha Channel, east northeast winds 25 to 30 knots. Elsewhere, east winds 15 to 20 knots, becoming east northeast 20 to 25 knots. Seas 5 to 8 feet. A slight chance of showers. .SATURDAY...Near the Big Island, east winds 25 to 30 knots. Elsewhere, east winds 15 to 20 knots, rising to 20 to 25 knots. Seas 5 to 7 feet. A slight chance of showers. $$