001 FZHW50 PHFO 201320 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 320 AM HST Wed May 20 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. PHZ100-210200- 320 AM HST Wed May 20 2026 .Synopsis for Hawaiian coastal waters... The high pressure ridge north of the Hawaiian Islands will strengthen over the next few days into the strong to gale range from Thursday into early Friday morning. $$ PHZ110-210200- Kauai Northwest Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds to 20 knots. Seas 6 to 8 feet. Isolated showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Isolated showers. .THURSDAY...East northeast winds 25 to 30 knots. Seas 7 to 10 feet. Isolated showers in the morning. .THURSDAY NIGHT...East northeast winds to 25 knots. Seas 9 to 11 feet. Isolated showers. .FRIDAY...East northeast winds to 25 knots. Seas 9 to 11 feet. Isolated showers in the morning. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 9 to 10 feet. Isolated showers in the evening. Scattered showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. Seas 9 to 10 feet. Wave Detail: North northwest 3 feet at 15 seconds. Isolated showers, then scattered showers after midnight. .SUNDAY...East northeast winds to 20 knots. Seas 8 to 10 feet. Wave Detail: North northwest 3 feet at 12 seconds. Isolated showers, then scattered showers after midnight. $$ PHZ111-210200- Kauai Windward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY FRIDAY MORNING... .TODAY...East winds 15 to 20 knots. Seas 7 to 9 feet. Scattered showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 8 to 9 feet. Scattered showers. .THURSDAY...East northeast winds 20 to 25 knots. Seas 9 to 11 feet. Scattered showers in the morning. Isolated showers in the afternoon. .THURSDAY NIGHT...East northeast winds to 25 knots. Seas 10 to 11 feet. Isolated showers. .FRIDAY...East northeast winds to 20 knots. Seas 10 to 11 feet. Isolated showers. .FRIDAY NIGHT...East northeast winds to 20 knots. Seas 10 to 11 feet. Scattered showers. .SATURDAY...East northeast winds to 20 knots. Seas 10 to 11 feet. Wave Detail: North northwest 3 feet at 16 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day. .SUNDAY...East winds to 20 knots. Seas 9 to 10 feet. Wave Detail: North northwest 3 feet at 12 seconds. Scattered showers in the morning, then isolated showers in the afternoon. Scattered showers through the day. $$ PHZ112-210200- Kauai Leeward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds to 20 knots. Seas 6 to 7 feet. Isolated showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Isolated showers after midnight. .THURSDAY...East northeast winds to 25 knots. Seas 6 to 9 feet. Isolated showers in the morning. .THURSDAY NIGHT...East northeast winds to 25 knots. In the Kaulakahi Channel, east northeast winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 8 to 10 feet. Isolated showers after midnight. .FRIDAY...East northeast winds 20 to 25 knots. In the Kaulakahi Channel, east northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon. Seas 7 to 10 feet. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. In the Kaulakahi Channel, east northeast winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas 7 to 10 feet. Isolated showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. In the Kaulakahi Channel, east northeast winds 10 to 15 knots, rising to 15 to 20 knots. Seas 7 to 10 feet. Isolated showers. .SUNDAY...East northeast winds 20 to 25 knots. In the Kaulakahi Channel, east northeast winds 10 to 15 knots, becoming east 15 to 20 knots. Seas 7 to 8 feet. Isolated showers. $$ PHZ113-210200- Kauai Channel- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds to 20 knots. Seas 6 to 8 feet. Isolated showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 7 to 9 feet. Isolated showers. .THURSDAY...East northeast winds to 25 knots. Seas 7 to 10 feet. Isolated showers in the morning. .THURSDAY NIGHT...East northeast winds to 25 knots. Seas 9 to 11 feet. Isolated showers after midnight. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: South 3 feet at 17 seconds. Isolated showers. .SATURDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: South 3 feet at 15 seconds. Isolated showers in the morning. Isolated showers through the day. .SUNDAY...East northeast winds to 20 knots. Seas 7 to 9 feet. Isolated showers in the morning. Isolated showers through the day. $$ PHZ114-210200- Oahu Windward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY FRIDAY MORNING... .TODAY...East winds to 20 knots. Seas 7 to 9 feet. Isolated showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 8 to 9 feet. Isolated showers in the evening. Scattered showers after midnight. .THURSDAY...East northeast winds to 25 knots. Seas 9 to 11 feet. Isolated showers in the morning. .THURSDAY NIGHT...East northeast winds to 25 knots. Seas 10 to 11 feet. Isolated showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 9 to 11 feet. Isolated showers. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 9 to 10 feet. Isolated showers in the evening, then scattered showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. Seas 9 to 11 feet. Wave Detail: North northwest 3 feet at 16 seconds. Scattered showers in the morning. Isolated showers. .SUNDAY...East winds to 20 knots. Seas 8 to 9 feet. Wave Detail: North northwest 3 feet at 12 seconds. Isolated showers. Scattered showers after midnight. $$ PHZ115-210200- Oahu Leeward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. Isolated showers this morning. .TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. .THURSDAY...East northeast winds to 25 knots. Seas 5 to 8 feet. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 7 to 10 feet. .FRIDAY...East northeast winds to 25 knots. Seas 5 to 8 feet. Wave Detail: South 3 feet at 17 seconds. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: South 3 feet at 17 seconds. .SATURDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: South 3 feet at 15 seconds. .SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. $$ PHZ116-210200- Kaiwi Channel- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Isolated showers this afternoon. .TONIGHT...East northeast winds 20 to 25 knots, rising to 25 to 30 knots after midnight. Seas 6 to 9 feet. .THURSDAY...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 8 to 11 feet. .FRIDAY...East northeast winds to 25 knots. Seas 7 to 10 feet. Wave Detail: South southwest 3 feet at 17 seconds. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 7 to 10 feet. Wave Detail: South 3 feet at 17 seconds. Isolated showers after midnight. .SATURDAY...East northeast winds 20 to 25 knots. Seas 7 to 10 feet. Wave Detail: South 3 feet at 15 seconds and north northwest 3 feet at 16 seconds. Isolated showers in the morning. .SUNDAY...East northeast winds 20 to 25 knots. Seas 6 to 9 feet. Wave Detail: North northwest 3 feet at 12 seconds. $$ PHZ117-210200- Maui County Windward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East winds 20 to 25 knots. Seas 7 to 9 feet. Scattered showers, mainly this morning. .TONIGHT...East winds 20 to 25 knots. Seas 8 to 9 feet. Isolated showers in the evening. Scattered showers after midnight. .THURSDAY...East winds 25 to 30 knots. Seas 9 to 11 feet. Scattered showers in the morning. Isolated showers in the afternoon. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 9 to 11 feet. Isolated showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Isolated showers. .FRIDAY NIGHT...East northeast winds 20 to 25 knots. Seas 9 to 10 feet. Scattered showers. .SATURDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: North northwest 3 feet at 14 seconds. Scattered showers in the morning. Isolated showers through the night, then scattered showers after midnight. .SUNDAY...East winds to 20 knots. Seas 8 to 9 feet. Wave Detail: North northwest 3 feet at 12 seconds. Isolated showers. Scattered showers after midnight. $$ PHZ118-210200- Maui County Leeward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. Wave Detail: South southwest 3 feet at 14 seconds. .TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. .THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. .THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet. .FRIDAY...East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 5 to 7 feet. Wave Detail: South 3 feet at 17 seconds. .FRIDAY NIGHT...Northeast winds 20 to 25 knots, becoming east northeast 15 to 20 knots after midnight. Seas 5 to 7 feet. Wave Detail: South 3 feet at 17 seconds. .SATURDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: South 3 feet at 15 seconds. .SUNDAY...East northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon, easing to 10 to 15 knots. Seas 4 to 6 feet. $$ PHZ119-210200- Maalaea Bay- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...North winds 20 to 25 knots. Seas to 2 feet or less. .TONIGHT...North northeast winds 25 to 30 knots. Seas to 2 feet or less. .THURSDAY...North winds 25 to 30 knots, easing to 20 to 25 knots in the afternoon. Seas to 2 feet or less. .THURSDAY NIGHT...North winds 25 to 30 knots. Seas to 2 feet or less. .FRIDAY...North winds to 30 knots, easing to 25 knots in the afternoon. Seas to 2 feet or less. .FRIDAY NIGHT...North winds to 30 knots, easing to 25 knots after midnight. Seas to 2 feet or less. .SATURDAY...North winds to 25 knots. Seas to 2 feet or less. .SUNDAY...North winds to 25 knots. Seas to 2 feet or less. $$ PHZ120-210200- Pailolo Channel- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY THURSDAY MORNING... ...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East northeast winds to 25 knots. Seas 4 to 6 feet. Isolated showers. .TONIGHT...East northeast winds 25 to 30 knots. Seas 4 to 6 feet. .THURSDAY...East northeast winds 25 to 30 knots. Seas 5 to 8 feet. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 5 to 7 feet. .FRIDAY...East northeast winds 25 to 30 knots. Seas 5 to 7 feet. .FRIDAY NIGHT...East northeast winds 25 to 30 knots, easing to 20 to 25 knots after midnight. Seas 5 to 7 feet. .SATURDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet. .SUNDAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet. $$ PHZ121-210200- Alenuihaha Channel- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY THURSDAY MORNING... ...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...East northeast winds 25 to 30 knots. Seas 6 to 9 feet. Scattered showers. .TONIGHT...East northeast winds 25 to 30 knots. Seas 7 to 9 feet. Scattered showers. .THURSDAY...East northeast winds 30 to 35 knots. Seas 7 to 10 feet. Scattered showers in the morning. Isolated showers in the afternoon. .THURSDAY NIGHT...East northeast winds 30 to 35 knots, becoming 25 to 35 knots after midnight. Seas 8 to 10 feet. Scattered showers in the evening. Isolated showers after midnight. .FRIDAY...East northeast winds 25 to 30 knots. Seas 7 to 9 feet. Wave Detail: South southwest 3 feet at 17 seconds. .FRIDAY NIGHT...East northeast winds 25 to 30 knots. Seas 7 to 9 feet. Wave Detail: South southwest 3 feet at 17 seconds. Scattered showers. .SATURDAY...East northeast winds 20 to 25 knots, rising to 25 to 30 knots. Seas 7 to 8 feet. Wave Detail: South southwest 3 feet at 15 seconds. Scattered showers in the morning. Isolated showers in the afternoon, then scattered showers through the day. .SUNDAY...East northeast winds 20 to 25 knots. Seas 6 to 7 feet. Wave Detail: South 3 feet at 14 seconds. Isolated showers in the morning. Isolated showers in the evening, then scattered showers after midnight. $$ PHZ122-210200- Big Island Windward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds 20 to 25 knots. Seas 7 to 10 feet. Scattered showers. .TONIGHT...East northeast winds 20 to 25 knots. Seas 8 to 9 feet. Scattered showers. .THURSDAY...East northeast winds 20 to 25 knots, rising to 25 to 30 knots in the afternoon. Seas 9 to 10 feet. Scattered showers. .THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 9 to 10 feet. Scattered showers. .FRIDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: South southwest 3 feet at 14 seconds. Scattered showers. .FRIDAY NIGHT...East northeast winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 8 to 9 feet. Wave Detail: South 4 feet at 17 seconds. Scattered showers. .SATURDAY...East northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon, easing to 15 to 20 knots. Seas 8 to 9 feet. Wave Detail: South 4 feet at 15 seconds and north northwest 3 feet at 14 seconds. Scattered showers. .SUNDAY...East northeast winds 15 to 20 knots. Seas 7 to 8 feet. Wave Detail: North northwest 3 feet at 12 seconds and south 3 feet at 14 seconds. Scattered showers. $$ PHZ123-210200- Big Island Leeward Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...Winds variable less than 10 knots west of the Big Island...East to 25 knots near South Point. Seas 5 to 7 feet. Isolated showers. .TONIGHT...Winds variable less than 10 knots west of the Big Island...East to 25 knots near South Point. Seas 5 to 8 feet. Scattered showers. .THURSDAY...West of the Big Island, winds variable less than 10 knots, becoming west southwest 7 to 10 knots in the afternoon. Near South Point, east winds 25 to 30 knots. Seas 5 to 8 feet. Isolated showers. .THURSDAY NIGHT...West of the Big Island, south winds 7 to 10 knots, backing to southeast 10 to 15 knots after midnight. Near South Point, east northeast winds 25 to 30 knots. Seas 6 to 9 feet. Scattered showers. .FRIDAY...West of the Big Island, southeast winds 7 to 10 knots, veering to west northwest in the afternoon. Near South Point, east winds 20 to 25 knots. Seas 5 to 8 feet. Wave Detail: South southwest 3 feet at 14 seconds. Isolated showers. .FRIDAY NIGHT...West of the Big Island, southeast winds 7 to 10 knots. Near South Point, east winds 20 to 25 knots, backing to east northeast after midnight. Seas 5 to 8 feet. Wave Detail: South 3 feet at 17 seconds. Scattered showers. .SATURDAY...West of the Big Island, winds variable less than 10 knots in the morning, becoming west 7 to 10 knots, backing to south southeast in the evening, becoming variable less than 10 knots. Near South Point, east winds 15 to 20 knots, becoming east northeast 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: South 3 feet at 15 seconds. Isolated showers. .SUNDAY...Winds variable less than 10 knots west of the Big Island...East 20 to 25 knots near South Point. Seas 5 to 7 feet. Wave Detail: South 3 feet at 14 seconds. Isolated showers in the morning. Isolated showers through the day. $$ PHZ124-210200- Big Island Southeast Waters- 320 AM HST Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING... .TODAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Scattered showers, mainly this morning. .TONIGHT...East northeast winds to 25 knots. Seas 9 to 10 feet. Scattered showers. .THURSDAY...East northeast winds 25 to 30 knots. Seas 9 to 11 feet. Scattered showers in the morning. Isolated showers in the afternoon. .THURSDAY NIGHT...East northeast winds 25 to 30 knots. Seas 10 to 11 feet. Scattered showers. .FRIDAY...East northeast winds to 25 knots. Seas 9 to 11 feet. Wave Detail: South southwest 3 feet at 14 seconds. Scattered showers. .FRIDAY NIGHT...East northeast winds to 25 knots. Seas 8 to 10 feet. Wave Detail: South 4 feet at 17 seconds. Scattered showers. .SATURDAY...East northeast winds 20 to 25 knots. Seas 8 to 10 feet. Wave Detail: South 4 feet at 15 seconds. Scattered showers. .SUNDAY...East northeast winds 20 to 25 knots. Seas 7 to 8 feet. Wave Detail: South 3 feet at 14 seconds. Scattered showers in the morning. Isolated showers in the afternoon, then scattered showers through the day. $$