439
FZHW50 PHFO 301300
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
300 AM HST Tue Apr 30 2024

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

PHZ100-010145-
300 AM HST Tue Apr 30 2024

.Synopsis for Hawaiian coastal waters...
High pressure remains far northeast of the area and a trough
northwest of Kauai. Trade winds look to strengthen tonight into
the moderate to locally strong as high pressure will build far
north of the state through the rest of the week.

$$

PHZ110-010145-
Kauai Northwest Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 8 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East southeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas 4 to 5 feet. Wave Detail: East
4 feet at 8 seconds. Scattered showers, mainly in the morning.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 8 seconds. Isolated showers.
.THURSDAY NIGHT...East winds to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds to 20 knots. Seas 5 to 8 feet. Wave Detail:
East 6 feet at 8 seconds and northwest 3 feet at 15 seconds.
Scattered showers in the morning, then isolated showers through
the night. Scattered showers after midnight.
.SATURDAY...East winds to 20 knots. Seas 7 to 8 feet. Wave
Detail: East 6 feet at 8 seconds and northwest 3 feet at
14 seconds. Scattered showers in the morning, then isolated
showers through the night. Scattered showers after midnight.

$$

PHZ111-010145-
Kauai Windward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds 10 to 15 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.TONIGHT...East southeast winds to 15 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East southeast winds to 15 knots. Seas to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Scattered showers, mainly
in the morning.
.WEDNESDAY NIGHT...East winds to 15 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers.
.THURSDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds to 20 knots. Seas 7 to 8 feet. Wave Detail:
East 7 feet at 8 seconds and northwest 3 feet at 15 seconds.
Scattered showers in the morning, then isolated showers through
the night. Scattered showers after midnight.
.SATURDAY...East winds to 20 knots. Seas to 8 feet. Wave Detail:
East 7 feet at 8 seconds and northwest 3 feet at 14 seconds.
Scattered showers in the morning, then isolated showers through
the night. Scattered showers after midnight.

$$

PHZ112-010145-
Kauai Leeward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East winds 10 to 15 knots, becoming 7 to 10 knots this
afternoon. Seas 3 to 4 feet. Wave Detail: East southeast 3 feet
at 6 seconds. Scattered showers, mainly this morning.
.TONIGHT...East winds 7 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 4 feet at 7 seconds. Isolated
showers.
.WEDNESDAY NIGHT...East winds 10 to 15 knots, rising to 15 to
20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
southeast 4 feet at 7 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots, rising to 20 to 25 knots.
Seas 5 to 7 feet. Wave Detail: East 6 feet at 7 seconds and
northwest 3 feet at 15 seconds. Isolated showers.
.SATURDAY...East winds 20 to 25 knots. Seas 5 to 7 feet. Wave
Detail: East 6 feet at 7 seconds and northwest 3 feet at
14 seconds. Isolated showers.

$$

PHZ113-010145-
Kauai Channel-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 6 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots, rising to 15 to 20 knots
in the afternoon. Seas 4 to 5 feet. Wave Detail: East 4 feet at
7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.THURSDAY NIGHT...East northeast winds to 20 knots. Seas 5 to
6 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds to 20 knots. Seas 6 to 7 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.SATURDAY...East northeast winds to 20 knots. Seas 6 to 8 feet.
Wave Detail: East northeast 6 feet at 7 seconds and northwest
3 feet at 14 seconds. Isolated showers.

$$

PHZ114-010145-
Oahu Windward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds to 15 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers, mainly this
morning.
.TONIGHT...East southeast winds to 15 knots. Seas to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas to 5 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers, mainly in
the morning.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 8 seconds. Isolated showers.
.THURSDAY...East winds 15 to 20 knots. Seas to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.
.THURSDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 7 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds 20 to 25 knots. Seas 7 to 8 feet. Wave
Detail: East 7 feet at 8 seconds and northwest 3 feet at
16 seconds. Scattered showers in the morning, then isolated
showers through the night. Scattered showers after midnight.
.SATURDAY...East winds 20 to 25 knots. Seas to 8 feet. Wave
Detail: East 7 feet at 8 seconds and northwest 3 feet at
14 seconds. Scattered showers in the morning, then isolated
showers through the night. Scattered showers after midnight.

$$

PHZ115-010145-
Oahu Leeward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...Southeast winds 7 to 10 knots. Seas to 4 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.TONIGHT...South southeast winds 7 to 10 knots, backing to east
10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail:
East 4 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 6 seconds. Isolated showers in the
morning.
.WEDNESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.SATURDAY...East northeast winds to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.

$$

PHZ116-010145-
Kaiwi Channel-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds 15 to 20 knots, easing to 10 to
15 knots this afternoon. Seas 4 to 6 feet. Wave Detail: East
5 feet at 6 seconds. Isolated showers.
.TONIGHT...East southeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 4 to 5 feet. Wave Detail:
East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers.
.THURSDAY NIGHT...East northeast winds to 20 knots. Seas 5 to
7 feet. Wave Detail: East 7 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 5 to 8 feet.
Wave Detail: East northeast 7 feet at 7 seconds. Isolated
showers.
.SATURDAY...East northeast winds 20 to 25 knots. Seas 5 to
8 feet. Wave Detail: East northeast 7 feet at 7 seconds and
northwest 3 feet at 14 seconds. Isolated showers.

$$

PHZ117-010145-
Maui County Windward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East 5 feet at 8 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers, mainly in
the morning.
.WEDNESDAY NIGHT...East winds to 20 knots. Seas to 6 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.THURSDAY...East winds to 20 knots. Seas to 6 feet. Wave Detail:
East 6 feet at 7 seconds. Scattered showers, mainly in the
morning.
.THURSDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 7 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds 20 to 25 knots. Seas 7 to 8 feet. Wave
Detail: East 7 feet at 8 seconds. Scattered showers in the
morning, then isolated showers through the night. Scattered
showers after midnight.
.SATURDAY...East winds 20 to 25 knots. Seas to 8 feet. Wave
Detail: East 7 feet at 8 seconds and northwest 3 feet at
14 seconds. Scattered showers in the morning, then isolated
showers through the night. Scattered showers after midnight.

$$

PHZ118-010145-
Maui County Leeward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...Southeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.TONIGHT...East southeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail:
East southeast 4 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots, becoming east
northeast 10 to 15 knots after midnight. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers.
.THURSDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.

$$

PHZ119-010145-
Maalaea Bay-
300 AM HST Tue Apr 30 2024

.TODAY...North winds 15 to 20 knots. Seas to 2 feet or less.
.TONIGHT...North winds to 25 knots. Seas to 2 feet or less.
.WEDNESDAY...North winds to 25 knots. Seas to 2 feet or less,
then to 3 feet in the afternoon.
.WEDNESDAY NIGHT...North northeast winds to 25 knots. Seas to
3 feet.
.THURSDAY...North northeast winds to 25 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 3 seconds.
.THURSDAY NIGHT...North northeast winds to 25 knots. Seas to
3 feet. Wave Detail: North northeast 3 feet at 3 seconds.
.FRIDAY...North northeast winds to 25 knots. Seas to 3 feet. Wave
Detail: North northeast 3 feet at 3 seconds.
.SATURDAY...North northeast winds to 25 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 4 seconds.

$$

PHZ120-010145-
Pailolo Channel-
300 AM HST Tue Apr 30 2024

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

$$

PHZ121-010145-
Alenuihaha Channel-
300 AM HST Tue Apr 30 2024

.TODAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers.
.TONIGHT...East northeast winds 20 to 25 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers.
.THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
8 feet. Wave Detail: East 7 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds 25 to 30 knots. Seas 6 to 8 feet.
Wave Detail: East 8 feet at 7 seconds. Isolated showers.
.SATURDAY...East northeast winds 25 to 30 knots. Seas 6 to
8 feet. Wave Detail: East 7 feet at 7 seconds. Isolated showers.

$$

PHZ122-010145-
Big Island Windward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 8 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 9 seconds. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 9 seconds. Scattered showers, mainly in
the morning.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 9 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers, mainly in
the morning.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet.
Wave Detail: East 5 feet at 8 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Scattered showers in the
morning, then isolated showers through the night. Scattered
showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 7 to 8 feet. Wave
Detail: East 6 feet at 8 seconds and northwest 3 feet at
14 seconds. Scattered showers in the morning, then isolated
showers through the night. Scattered showers after midnight.

$$

PHZ123-010145-
Big Island Leeward Waters-
300 AM HST Tue Apr 30 2024

.TODAY...North northwest winds 7 to 10 knots west of the Big
Island...east to 20 knots near South Point. Seas 4 to 6 feet.
Wave Detail: East southeast 5 feet at 5 seconds. Isolated showers
this morning.
.TONIGHT...West of the Big Island, west southwest winds 7 to
10 knots, veering to northwest after midnight. Near South Point,
east winds 15 to 20 knots, rising to 25 knots after midnight.
Seas 3 to 5 feet. Wave Detail: East southeast 5 feet at
5 seconds. Isolated showers.
.WEDNESDAY...West of the Big Island, north northwest winds 7 to
10 knots in the morning, becoming variable less than 10 knots.
Near South Point, east winds to 25 knots. Seas 4 to 6 feet. Wave
Detail: East 4 feet at 5 seconds. Isolated showers in the
morning.
.WEDNESDAY NIGHT...West of the Big Island, west northwest winds
7 to 10 knots. Near South Point, east winds to 25 knots, backing
to east northeast after midnight. Seas 4 to 6 feet. Wave Detail:
East 5 feet at 6 seconds. Isolated showers.
.THURSDAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds 20 to 25 knots, becoming
to 25 knots in the afternoon. Seas 5 to 7 feet. Wave Detail: East
5 feet at 6 seconds. Isolated showers in the morning.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east northeast to 25 knots near South Point. Seas
5 to 7 feet. Wave Detail: East 6 feet at 7 seconds. Isolated
showers.
.FRIDAY...West of the Big Island, winds variable less than
10 knots, becoming west 7 to 10 knots in the afternoon, then
becoming variable less than 10 knots. Near South Point, east
winds to 25 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at
6 seconds. Isolated showers in the morning. Isolated showers
through the day.
.SATURDAY...West of the Big Island, winds variable less than
10 knots, becoming west northwest 7 to 10 knots in the afternoon,
then becoming variable less than 10 knots. Near South Point, east
winds to 25 knots. Seas 5 to 7 feet. Wave Detail: East 6 feet at
6 seconds. Isolated showers in the morning. Isolated showers
through the day.

$$

PHZ124-010145-
Big Island Southeast Waters-
300 AM HST Tue Apr 30 2024

.TODAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 9 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 9 seconds. Scattered showers.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 6 to
7 feet. Wave Detail: East 5 feet at 9 seconds. Scattered showers,
mainly in the morning.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
7 feet. Wave Detail: East 6 feet at 9 seconds. Isolated showers
in the evening, then scattered showers after midnight.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 6 to
7 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers,
mainly in the morning.
.THURSDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
8 feet. Wave Detail: East 7 feet at 8 seconds. Isolated showers
in the evening, then scattered showers after midnight.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 7 to 8 feet.
Wave Detail: East 7 feet at 8 seconds. Scattered showers in the
morning, then isolated showers through the night. Scattered
showers after midnight.
.SATURDAY...East northeast winds 20 to 25 knots. Seas 7 to
8 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers
in the morning, then isolated showers through the night.
Scattered showers after midnight.

$$