FZHW51 PHFO 190124 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 324 PM HST Wed Mar 18 2026 .Synopsis for Hawaiian coastal waters... Light to locally moderate east to southeast winds will slowly strengthen to moderate speeds and veer south by Thursday as a ridge builds northeast of the state and a low develops west of the state. Friday through the weekend, the low will shift northeast of the state allowing moderate south southwest winds to become light and variable by Sunday. A strong high will build behind the exiting low with moderate to locally strong trades returning during the first half of next week. $$ Hawaiian waters within 40 nautical miles including the channels- .TONIGHT...East southeast winds 10 to 15 knots. Seas 5 to 8 feet. Wave Detail: North 6 feet at 11 seconds, south 4 feet at 14 seconds and east southeast 3 feet at 5 seconds. Isolated showers. .THURSDAY AND THURSDAY NIGHT...South southeast winds 10 to 15 knots. Seas 5 to 8 feet. Wave Detail: North 4 feet at 11 seconds, south 4 feet at 14 seconds and east southeast 3 feet at 6 seconds. Heavy showers likely. Isolated thunderstorms in the evening. .FRIDAY AND FRIDAY NIGHT...South southwest winds 10 to 15 knots. Seas 5 to 7 feet. Wave Detail: North 5 feet at 11 seconds. Heavy showers with isolated thunderstorms. .SATURDAY AND SATURDAY NIGHT...South southwest winds 15 to 20 knots. Seas 6 to 9 feet. Scattered heavy showers with isolated thunderstorms. .SUNDAY...Variable winds 10 knots or less, becoming northwest winds 7 to 10 knots, veering to north 10 to 15 knots. Seas 6 to 9 feet. Isolated thunderstorms through the night. Heavy showers likely. .MONDAY...Northeast winds 15 to 20 knots. Seas 5 to 8 feet, building to 7 to 10 feet. Showers likely through the night, then a chance of showers through the day. Winds and seas higher in and near tstms. $$