FZHW50 PHFO 221325 CWFHFO Coastal Waters Forecast National Weather Service Honolulu HI 325 AM HST Sun Mar 22 2026 Hawaiian coastal waters within 40 nautical miles including the Hawaiian Islands Humpback Whale National Marine Sanctuary. 325 AM HST Sun Mar 22 2026 .Synopsis for Hawaiian coastal waters... A surface low is located north of the islands with a pair of troughs draped over the region. Bands of heavy showers and thunderstorms will continue to move over the coastal waters into Sunday. The low will lift northeast of the region on Sunday, and strong high pressure will build far north of the islands Monday and Tuesday.
Maui County Windward Waters- 325 AM HST Sun Mar 22 2026
TODAY Southwest winds 15 to 20 knots, easing to 10 to 15 knots this afternoon. Seas 5 to 6 feet. Wave Detail: North northeast 5 feet at 10 seconds and northwest 3 feet at 15 seconds. Heavy showers with isolated thunderstorms.
TONIGHT East winds 7 to 10 knots. Seas 5 to 6 feet. Wave Detail: North northeast 4 feet at 10 seconds and northwest 3 feet at 14 seconds. Scattered showers.
MONDAY Northeast winds 10 to 15 knots, rising to 15 to 20 knots in the afternoon. Seas 5 to 6 feet. Wave Detail: Northeast 4 feet at 6 seconds, north northeast 4 feet at 9 seconds and northwest 3 feet at 13 seconds. Scattered showers.
MONDAY NIGHT Northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: North 5 feet at 8 seconds, northeast 4 feet at 5 seconds and northwest 3 feet at 12 seconds. Scattered showers.
TUESDAY Northeast winds 15 to 20 knots. Seas 6 to 8 feet. Wave Detail: North northeast 6 feet at 9 seconds and northeast 5 feet at 6 seconds. Scattered showers.
TUESDAY NIGHT East northeast winds 15 to 20 knots. Seas 7 to 9 feet. Wave Detail: East northeast 6 feet at 6 seconds and north northeast 6 feet at 9 seconds. Scattered showers.
WEDNESDAY East northeast winds 15 to 20 knots. Seas 7 to 9 feet. Wave Detail: East 6 feet at 7 seconds, north northeast 6 feet at 9 seconds and northwest 3 feet at 16 seconds. Scattered showers.
THURSDAY East northeast winds to 15 knots. Seas 7 to 8 feet. Wave Detail: East 5 feet at 6 seconds, northeast 5 feet at 9 seconds and northwest 4 feet at 15 seconds. Isolated showers. Winds and seas higher in and near tstms.
Maui County Leeward Waters- 325 AM HST Sun Mar 22 2026
TODAY South southwest winds 10 to 15 knots, backing to south southeast 7 to 10 knots this afternoon. Seas 3 to 5 feet. Wave Detail: Southwest 3 feet at 4 seconds and north 3 feet at 10 seconds. Heavy showers this morning. Isolated thunderstorms. Numerous showers this afternoon.
TONIGHT Southeast winds 7 to 10 knots. Seas 3 to 4 feet. Wave Detail: North 3 feet at 10 seconds. Scattered showers.
MONDAY Northeast winds 10 to 15 knots. Seas 3 to 4 feet. Scattered showers, mainly in the morning.
MONDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 3 feet at 8 seconds. Isolated showers in the evening.
TUESDAY Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: Northeast 3 feet at 5 seconds and north 3 feet at 10 seconds.
TUESDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East northeast 4 feet at 5 seconds and north 3 feet at 9 seconds.
WEDNESDAY Northeast winds 15 to 20 knots, becoming east northeast 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: East northeast 4 feet at 6 seconds and north 3 feet at 9 seconds.
THURSDAY Northeast winds 7 to 10 knots, veering to east northeast 10 to 15 knots. Seas 3 to 5 feet. Wave Detail: Northeast 4 feet at 5 seconds. Winds and seas higher in and near tstms.
Maalaea Bay- 325 AM HST Sun Mar 22 2026
TODAY North winds 7 to 10 knots, veering to south this afternoon. Seas to 2 feet or less. Heavy showers with isolated thunderstorms.
TONIGHT Winds variable less than 10 knots. Seas to 2 feet or less. Scattered showers.
MONDAY North northeast winds 10 to 15 knots. Seas to 2 feet or less. Scattered showers.
MONDAY NIGHT North winds to 20 knots, easing to 15 knots after midnight. Seas to 2 feet or less. Isolated showers in the evening.
TUESDAY North winds to 20 knots, rising to 25 knots in the afternoon. Seas to 2 feet or less.
TUESDAY NIGHT North winds to 25 knots, easing to 20 knots after midnight. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds.
WEDNESDAY North winds to 20 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds.
THURSDAY North winds to 20 knots. Seas to 2 feet or less. Wave Detail: North northeast 2 feet at 3 seconds. Winds and seas higher in and near tstms.
Pailolo Channel- 325 AM HST Sun Mar 22 2026
TODAY South winds 7 to 10 knots, becoming 10 to 15 knots this afternoon. Seas 3 to 4 feet. Heavy showers with isolated thunderstorms.
TONIGHT East southeast winds 7 to 10 knots, backing to east northeast after midnight. Seas to 2 feet or less. Scattered showers in the evening, then numerous showers after midnight.
MONDAY Northeast winds 15 to 20 knots. Seas 3 to 4 feet. Scattered showers, mainly in the morning.
MONDAY NIGHT Northeast winds 15 to 20 knots. Seas 3 to 4 feet. Isolated showers.
TUESDAY East northeast winds 15 to 20 knots, becoming northeast 20 to 25 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East northeast 3 feet at 4 seconds.
TUESDAY NIGHT Northeast winds 20 to 25 knots, becoming east northeast 15 to 20 knots after midnight. Seas 4 to 6 feet. Wave Detail: East northeast 4 feet at 4 seconds and east northeast 3 feet at 9 seconds.
WEDNESDAY East northeast winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 4 seconds and east northeast 3 feet at 9 seconds.
THURSDAY East northeast winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East northeast 3 feet at 4 seconds and east northeast 3 feet at 9 seconds. Winds and seas higher in and near tstms.
Alenuihaha Channel- 325 AM HST Sun Mar 22 2026
TODAY West southwest winds 15 to 20 knots, becoming south 10 to 15 knots this afternoon. Seas 3 to 5 feet. Wave Detail: West southwest 3 feet at 4 seconds. Heavy showers with isolated thunderstorms.
TONIGHT East winds 7 to 10 knots. Seas to 3 feet. Scattered showers.
MONDAY East northeast winds 7 to 10 knots, becoming 10 to 15 knots in the afternoon. Seas 3 to 4 feet. Scattered showers.
MONDAY NIGHT Northeast winds 15 to 20 knots, easing to 10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail: East northeast 3 feet at 4 seconds. Isolated showers.
TUESDAY Northeast winds 15 to 20 knots, rising to 20 to 25 knots in the afternoon. Seas 4 to 6 feet. Wave Detail: East northeast 4 feet at 5 seconds and north northeast 3 feet at 9 seconds. Scattered showers.
TUESDAY NIGHT Northeast winds 20 to 25 knots, easing to 15 to 20 knots after midnight. Seas 5 to 7 feet. Wave Detail: East 5 feet at 6 seconds and north northeast 3 feet at 9 seconds. Scattered showers.
WEDNESDAY East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 7 feet at 6 seconds and northeast 4 feet at 9 seconds. Scattered showers.
THURSDAY East northeast winds 15 to 20 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at 5 seconds and northeast 4 feet at 9 seconds. Isolated showers after midnight. Winds and seas higher in and near tstms.
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