FZHW51 PHFO 300644 CWFHI1 Generalized Statewide Coastal Waters Forecast for Hawaii National Weather Service Honolulu HI 844 PM HST Tue Apr 29 2025 .Synopsis for Hawaiian coastal waters... A trough of low pressure north of the island chain will linger through the night and continue to weaken the high pressure ridge over the state, keeping light and variable winds across the region. Trades with more stable weather conditions will build back in from tomorrow onward. $$ Hawaiian waters within 40 nautical miles including the channels- .REST OF TONIGHT...East winds 5 to 15 knots. Seas 4 to 5 feet. Wave Detail: East southeast 4 feet at 8 seconds. Hazy. Scattered showers with isolated thunderstorms. .WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East 4 feet at 8 seconds. Hazy. Isolated showers. .WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 4 feet at 8 seconds and north northwest 3 feet at 18 seconds. Isolated showers. .THURSDAY...East northeast winds 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: East 5 feet at 6 seconds and north northwest 4 feet at 15 seconds. Scattered showers. .THURSDAY NIGHT THROUGH SUNDAY...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Isolated to scattered showers. $$