Coastal Waters Forecast
Issued by NWS Honolulu, HI

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721
FZHW50 PHFO 171904
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
904 AM HST Wed Jul 17 2024

Hawaiian coastal waters within 40 nautical miles including the
Hawaiian Islands Humpback Whale National Marine Sanctuary.

PHZ100-180745-
904 AM HST Wed Jul 17 2024

.Synopsis for Hawaiian coastal waters...
The pressure gradient over the island chain will relax today and
hold through the week as a trough lingers northeast of the state.
The trough will dissipate over the weekend and a strong high will
develop north of the state.

$$

PHZ110-180745-
Kauai Northwest Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 6 seconds.
.TONIGHT...East northeast winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East 4 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers
in the morning.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers
after midnight.
.FRIDAY...East northeast winds 15 to 20 knots. Seas to 4 feet.
Wave Detail: East 4 feet at 6 seconds.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas to 4 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers after
midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers in the
evening. Scattered showers after midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers in the
morning. Isolated showers.

$$

PHZ111-180745-
Kauai Windward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 10 to 15 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 6 seconds. Scattered showers,
mainly this morning.
.TONIGHT...East northeast winds to 15 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.THURSDAY...East northeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers in the morning.
.THURSDAY NIGHT...East northeast winds to 15 knots. Seas 4 to
5 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers.
.FRIDAY...East northeast winds 10 to 15 knots. Seas to 4 feet.
Wave Detail: East southeast 4 feet at 6 seconds.
.FRIDAY NIGHT...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers
after midnight.
.SATURDAY...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers in the
morning. Isolated showers in the evening, then scattered showers
after midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Scattered showers,
mainly in the morning.

$$

PHZ112-180745-
Kauai Leeward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 6 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 6 seconds. Isolated showers
after midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers after
midnight.

$$

PHZ113-180745-
Kauai Channel-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East northeast 5 feet at 6 seconds. Isolated
showers this morning.
.TONIGHT...East northeast winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East northeast 4 feet at 6 seconds. Isolated
showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East northeast 4 feet at 6 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 5 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers
after midnight.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
through the day.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers in the
morning. Isolated showers after midnight.

$$

PHZ114-180745-
Oahu Windward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East 4 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers
in the morning.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers
after midnight.
.FRIDAY...East northeast winds 15 to 20 knots. Seas to 4 feet.
Wave Detail: East southeast 4 feet at 6 seconds. Isolated showers
in the morning.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers in
the evening, then scattered showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers through the
night, then scattered showers through the day.
.SUNDAY...East winds 15 to 20 knots, rising to 20 to 25 knots.
Seas 5 to 6 feet. Wave Detail: East southeast 6 feet at
7 seconds. Scattered showers, mainly in the morning.

$$

PHZ115-180745-
Oahu Leeward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 4 feet at 6 seconds.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 5 seconds.
.THURSDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East
4 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.FRIDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East
4 feet at 5 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.SATURDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots. Seas 3 to 4 feet. Wave Detail: East 4 feet at
5 seconds.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 5 feet at 6 seconds.

$$

PHZ116-180745-
Kaiwi Channel-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East northeast 4 feet at 5 seconds.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East northeast 4 feet at 5 seconds.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds. Isolated
showers after midnight.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East northeast 4 feet at 5 seconds. Isolated showers
in the morning.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers
in the evening. Scattered showers after midnight.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
in the evening. Scattered showers after midnight.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 6 seconds. Scattered showers in the
morning. Isolated showers.

$$

PHZ117-180745-
Maui County Windward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 5 seconds and northeast
3 feet at 9 seconds. Isolated showers this morning.
.TONIGHT...East winds 15 to 20 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 5 seconds and northeast 3 feet at
9 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers in the
morning.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 5 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas to 4 feet. Wave Detail:
East 4 feet at 6 seconds. Scattered showers, mainly in the
morning.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers in
the evening, then scattered showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Showers likely in the morning.
Scattered showers.
.SUNDAY...East winds 20 to 25 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 6 seconds. Scattered showers, mainly in
the morning.

$$

PHZ118-180745-
Maui County Leeward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 5 seconds.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 5 seconds.
.FRIDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas 3 to 4 feet. Wave Detail: East
southeast 4 feet at 5 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 6 seconds.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East southeast 4 feet at 6 seconds.
.SUNDAY...East northeast winds 15 to 20 knots, rising to 20 to
25 knots in the evening, easing to 15 to 20 knots after midnight.
Seas 4 to 6 feet. Wave Detail: East southeast 5 feet at
6 seconds.

$$

PHZ119-180745-
Maalaea Bay-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...North northeast winds 15 to 20 knots. Seas to
3 feet.
.TONIGHT...North northeast winds 15 to 20 knots, becoming
northeast 10 to 15 knots after midnight. Seas to 3 feet in the
evening, then to 2 feet or less.
.THURSDAY...North northeast winds 15 to 20 knots. Seas to 2 feet
or less.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots. Seas to 2 feet
or less.
.FRIDAY...East northeast winds 10 to 15 knots. Seas to 2 feet or
less.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Seas to 2 feet or
less.
.SATURDAY...East northeast winds 15 to 20 knots, easing to 10 to
15 knots. Seas to 2 feet or less.
.SUNDAY...East northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. Seas to 3 feet.

$$

PHZ120-180745-
Pailolo Channel-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds to 20 knots. Seas 3 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds and east
northeast 3 feet at 9 seconds. Isolated showers this morning.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East northeast 4 feet at 5 seconds and east
northeast 3 feet at 9 seconds. Isolated showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 5 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 5 seconds. Isolated showers
in the evening.
.SATURDAY...East northeast winds 15 to 20 knots, rising to 20 to
25 knots in the evening, easing to 15 to 20 knots after midnight.
Seas 3 to 4 feet. Wave Detail: East 4 feet at 5 seconds. Isolated
showers in the evening.
.SUNDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 6 seconds.

$$

PHZ121-180745-
Alenuihaha Channel-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds to 20 knots. Seas 5 to
7 feet. Wave Detail: East northeast 5 feet at 5 seconds. Isolated
showers this morning.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 5 seconds. Isolated showers in the
evening. Scattered showers after midnight.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 5 seconds. Scattered showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 5 seconds. Scattered showers.
.FRIDAY NIGHT...East northeast winds to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers
in the evening. Showers likely after midnight.
.SATURDAY...East northeast winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 6 seconds. Showers likely in
the morning. Scattered showers.
.SUNDAY...East northeast winds 20 to 25 knots, rising to 25 to
30 knots in the afternoon, easing to 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 7 feet at 6 seconds. Scattered showers.

$$

PHZ122-180745-
Big Island Windward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 4 seconds and northeast
3 feet at 9 seconds. Isolated showers this morning.
.TONIGHT...East northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. Seas 4 to 5 feet. Wave Detail: East
3 feet at 4 seconds and northeast 3 feet at 9 seconds. Isolated
showers.
.THURSDAY...East winds 10 to 15 knots, becoming east northeast
15 to 20 knots in the afternoon. Seas 4 to 5 feet. Wave Detail:
East 3 feet at 4 seconds. Isolated showers.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east 10 to 15 knots after midnight. Seas 4 to 5 feet. Wave
Detail: East 3 feet at 4 seconds. Scattered showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 3 feet at 5 seconds. Scattered showers.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east 10 to 15 knots after midnight. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Showers likely.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Showers likely, mainly in the
morning.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Scattered showers.

$$

PHZ123-180745-
Big Island Leeward Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...West of the Big Island, southwest winds 7 to
10 knots, veering to west northwest to 10 knots this afternoon.
Near South Point, east winds to 20 knots. Seas 4 to 6 feet. Wave
Detail: East northeast 4 feet at 5 seconds.
.TONIGHT...West of the Big Island, south southwest winds 7 to
10 knots in the evening, becoming variable less than 10 knots.
Near South Point, east winds to 20 knots. Seas 3 to 5 feet. Wave
Detail: East northeast 4 feet at 5 seconds. Isolated showers
after midnight.
.THURSDAY...West of the Big Island, north northwest winds 7 to
10 knots, backing to west in the afternoon. Near South Point,
east winds to 20 knots. Seas 3 to 5 feet. Wave Detail: East
northeast 4 feet at 5 seconds.
.THURSDAY NIGHT...West of the Big Island, south southwest winds
7 to 10 knots, veering to north after midnight. Near South Point,
east winds to 20 knots. Seas 3 to 5 feet. Wave Detail: East
northeast 4 feet at 6 seconds.
.FRIDAY...West of the Big Island, north northwest winds 7 to
10 knots, backing to west in the afternoon. Near South Point,
east winds to 20 knots. Seas 3 to 5 feet. Wave Detail: East
northeast 4 feet at 5 seconds.
.FRIDAY NIGHT...West of the Big Island, north northwest winds
7 to 10 knots. Near South Point, east winds to 20 knots, backing
to east northeast after midnight. Seas 3 to 5 feet. Wave Detail:
East northeast 4 feet at 6 seconds. Isolated showers in the
evening. Scattered showers after midnight.
.SATURDAY...West of the Big Island, west northwest winds 7 to
10 knots, backing to west southwest in the evening, then becoming
variable less than 10 knots after midnight. Near South Point,
east winds to 20 knots, rising to 25 to 30 knots. Seas 3 to
5 feet. Wave Detail: East northeast 4 feet at 5 seconds. Isolated
showers in the morning. Scattered showers.
.SUNDAY...West of the Big Island, west winds 7 to 10 knots,
veering to northwest after midnight. Near South Point, east winds
25 to 30 knots. Seas 4 to 6 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers.

$$

PHZ124-180745-
Big Island Southeast Waters-
904 AM HST Wed Jul 17 2024

.REST OF TODAY...East northeast winds 15 to 20 knots. Seas 5 to
7 feet. Wave Detail: East 5 feet at 5 seconds and northeast
3 feet at 9 seconds.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 5 seconds and northeast 3 feet at
9 seconds.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 4 feet at 5 seconds.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 5 feet at 5 seconds. Isolated showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 5 seconds. Isolated showers in the
morning. Scattered showers in the afternoon.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East 5 feet at 5 seconds. Scattered showers
in the evening, then showers likely after midnight.
.SATURDAY...East northeast winds 15 to 20 knots, rising to 20 to
25 knots. Seas 5 to 6 feet. Wave Detail: East 5 feet at
5 seconds. Scattered showers.
.SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 6 seconds. Scattered showers in the
morning. Isolated showers through the night, then scattered
showers after midnight.

$$