FZHW50 PHFO 210717 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 917 PM HST Wed Jan 20 2021 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 917 PM HST Wed Jan 20 2021 .Synopsis for Hawaiian coastal waters... High pressure far northeast of the islands will support moderate to locally strong trades through Friday. The high will strengthen over the weekend and this will further increase east southeast winds from strong to near gale force magnitudes.
Big Island Windward Waters- 917 PM HST Wed Jan 20 2021 .REST OF TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell 5 feet. Scattered showers.
THURSDAY East winds 15 knots. Wind waves 5 feet. North swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
THURSDAY NIGHT East winds 20 knots. Wind waves 5 feet. Northwest swell 5 feet. Isolated showers in the evening, then scattered showers after midnight.
FRIDAY East winds 20 knots. Wind waves 5 feet. Northwest swell 4 feet. Isolated showers.
FRIDAY NIGHT East winds 20 knots. Wind waves 6 feet. Northwest swell 6 feet increasing to 8 feet after midnight. Scattered showers.
SATURDAY East winds to 25 knots. Wind waves 7 feet. Northwest swell 9 feet. Scattered showers.
SATURDAY NIGHT East winds to 25 knots. Wind waves 9 feet. Northwest swell 10 feet. Scattered showers.
SUNDAY East winds to 25 knots. Wind waves 9 feet. Northwest swell 7 to 9 feet. Scattered showers.
MONDAY East winds to 30 knots easing to 20 knots. Wind waves 9 to 11 feet. Northwest swell 4 to 6 feet. Scattered showers.
Big Island Leeward Waters- 917 PM HST Wed Jan 20 2021
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .REST OF TONIGHT...Winds variable less than 10 knots west of the Big Island...east to 25 knots near South Point. Wind waves 8 feet. Northwest swell 4 feet. Haze. Isolated showers.
THURSDAY Winds variable less than 10 knots west of the Big Island...east to 25 knots near South Point. Wind waves 8 feet. Northwest swell 3 feet. Haze. Isolated showers.
THURSDAY NIGHT Winds variable less than 10 knots west of the Big Island...east to 25 knots near South Point. Wind waves 8 feet. Northwest swell 3 feet. Haze. Isolated showers.
FRIDAY Winds variable less than 10 knots west of the Big Island...east to 25 knots near South Point. Wind waves 8 feet. Northwest swell 3 feet. Isolated showers in the morning. Haze through the day.
FRIDAY NIGHT Winds variable less than 10 knots west of the Big Island...east to 25 knots near South Point. Wind waves 8 feet. Northwest swell 4 feet increasing to 6 feet after midnight. Haze. Isolated showers.
SATURDAY West of the Big Island, winds variable less than 10 knots becoming north 10 knots in the afternoon. Near South Point, east winds to 25 knots. Wind waves 9 feet. Northwest swell 7 feet. Haze. Isolated showers.
SATURDAY NIGHT West of the Big Island, northwest winds 10 knots in the evening becoming variable less than 10 knots. Near South Point, east winds to 25 knots. Wind waves 9 feet. Northwest swell 7 feet. Haze. Isolated showers.
SUNDAY West of the Big Island, northwest winds 10 knots becoming variable less than 10 knots. Near South Point, east winds to 25 knots. Wind waves 9 to 10 feet. Northwest swell 5 to 7 feet. Haze. Scattered showers.
MONDAY West of the Big Island, winds variable less than 10 knots becoming northeast 10 knots in the evening, then becoming variable less than 10 knots after midnight. Near South Point, east winds to 25 knots. Wind waves 10 to 11 feet. Northwest swell 3 to 5 feet. Haze. Scattered showers.
Big Island Southeast Waters- 917 PM HST Wed Jan 20 2021
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... .REST OF TONIGHT...East winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Isolated showers early in the evening, then scattered showers after midnight.
THURSDAY East winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
THURSDAY NIGHT East winds to 25 knots. Wind waves 7 feet. Northwest swell 4 feet. Isolated showers.
FRIDAY East winds to 25 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated showers through the day.
FRIDAY NIGHT East winds to 25 knots. Wind waves 7 feet. Northwest swell 4 feet. Scattered showers.
SATURDAY East winds to 25 knots. Wind waves 8 feet. Northwest swell 7 feet. Scattered showers.
SATURDAY NIGHT East winds to 25 knots. Wind waves 9 feet. Northwest swell 7 feet. Scattered showers.
SUNDAY East winds to 25 knots. Wind waves 8 to 9 feet. Northwest swell 5 to 7 feet. Scattered showers.
MONDAY East winds to 25 knots. Wind waves 10 to 11 feet. Northwest swell 3 to 5 feet. Scattered showers.
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