688
FZHW50 PHFO 191336
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
336 AM HST Sat Apr 19 2025

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

PHZ100-200215-
336 AM HST Sat Apr 19 2025

.Synopsis for Hawaiian coastal waters...
High pressure far northeast of the area will hold into Monday producing
moderate easterly trade winds. A low will develop northwest of the
state during the first half of next week shifting winds out of the
south. The low will also bring an increase in probability of
thunderstorms for the western waters.

$$

PHZ110-200215-
Kauai Northwest Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 4 feet at 7 seconds and north 4 feet at 10 seconds.
Scattered showers.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 4 feet at 6 seconds and north 4 feet at 11 seconds.
Scattered showers.
.SUNDAY...East winds to 15 knots. Seas 4 to 5 feet. Wave Detail:
East 4 feet at 7 seconds and north 3 feet at 11 seconds.
Scattered showers.
.SUNDAY NIGHT...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 7 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 3 feet at 14 seconds. Scattered showers.
.MONDAY NIGHT...East southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: Northwest 3 feet at 13 seconds. Scattered
showers.
.TUESDAY...South winds to 10 knots. Seas 4 to 5 feet. Wave
Detail: Northwest 3 feet at 12 seconds. Numerous heavy showers
with a slight chance of thunderstorms.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas 4 to
5 feet. Numerous heavy showers with a slight chance of
thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ111-200215-
Kauai Windward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 4 feet at 7 seconds and north 4 feet at 10 seconds.
Scattered showers.
.TONIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 4 feet at 6 seconds and north 3 feet at 11 seconds.
Scattered showers.
.SUNDAY...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 5 feet at 7 seconds and north 3 feet at 11 seconds.
Scattered showers.
.SUNDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 7 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
North northeast 3 feet at 14 seconds. Scattered showers.
.MONDAY NIGHT...East southeast winds to 15 knots. Seas to 5 feet.
Wave Detail: Northwest 3 feet at 13 seconds. Scattered showers.
.TUESDAY...South southeast winds 10 to 15 knots, becoming 7 to
10 knots. Seas to 5 feet. Wave Detail: Northwest 3 feet at
12 seconds. Numerous heavy showers with a slight chance of
thunderstorms.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas 4 to
5 feet. Numerous heavy showers with a slight chance of
thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ112-200215-
Kauai Leeward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 4 feet at 10 seconds and east 3 feet at 6 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 4 feet at 11 seconds and east 3 feet at 5 seconds.
Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas to 4 feet. Wave Detail:
East 3 feet at 5 seconds and north 3 feet at 11 seconds. Isolated
showers in the morning, then scattered showers in the afternoon.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 5 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: North 3 feet at 14 seconds. Scattered showers, mainly in
the morning.
.MONDAY NIGHT...East southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: Northwest 3 feet at 13 seconds. Isolated
showers in the evening, then scattered showers after midnight.
.TUESDAY...South southeast winds 10 to 15 knots. Seas 3 to
4 feet. Scattered heavy showers through the night. A slight
chance of thunderstorms. Numerous heavy showers through the day.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas 3 to
5 feet. Numerous heavy showers with a slight chance of
thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ113-200215-
Kauai Channel-
336 AM HST Sat Apr 19 2025

.TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East 4 feet at 6 seconds and north 4 feet at 10 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East northeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 5 seconds and north 3 feet at
11 seconds. Isolated showers.
.SUNDAY...East northeast winds to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 5 seconds and north 3 feet at
11 seconds. Isolated showers in the morning, then scattered
showers in the afternoon.
.SUNDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds and north 3 feet at
10 seconds. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Scattered
showers, mainly in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots, veering to east
southeast 7 to 10 knots after midnight. Seas 4 to 5 feet.
Isolated showers in the evening, then scattered showers after
midnight.
.TUESDAY...South southeast winds 7 to 10 knots. Seas 4 to 5 feet.
Scattered heavy showers through the night. A slight chance of
thunderstorms. Numerous heavy showers through the day.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Numerous heavy showers with a slight chance of thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ114-200215-
Oahu Windward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 4 feet at 6 seconds and north 4 feet at 11 seconds.
Scattered showers.
.TONIGHT...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 4 feet at 6 seconds and north 4 feet at 11 seconds.
Scattered showers.
.SUNDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East 4 feet at 7 seconds and north 3 feet at 11 seconds.
Scattered showers.
.SUNDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 7 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
North northeast 3 feet at 10 seconds. Scattered showers.
.MONDAY NIGHT...East southeast winds to 15 knots. Seas to 5 feet.
Wave Detail: North northeast 3 feet at 13 seconds. Scattered
showers.
.TUESDAY...Southeast winds 10 to 15 knots, becoming 7 to
10 knots. Seas 4 to 5 feet. Wave Detail: Northwest 3 feet at
12 seconds. Numerous heavy showers with a slight chance of
thunderstorms.
.WEDNESDAY...Southeast winds 7 to 10 knots, backing to east
southeast 10 to 15 knots. Seas 4 to 5 feet. Numerous heavy
showers through the night. A slight chance of thunderstorms.
Scattered heavy showers through the day.

Winds and seas higher in and near tstms.

$$

PHZ115-200215-
Oahu Leeward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds 7 to 10 knots. Seas 3 to 4 feet. Wave Detail:
East 3 feet at 6 seconds and north northwest 3 feet at
10 seconds. Scattered showers, mainly this morning.
.TONIGHT...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: East 3 feet at 5 seconds and north 3 feet at
11 seconds. Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.SUNDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Scattered
showers, mainly in the morning.
.MONDAY NIGHT...East winds 7 to 10 knots. Seas 3 to 4 feet.
Isolated showers.
.TUESDAY...South southeast winds 7 to 10 knots, becoming variable
less than 10 knots, then becoming south southeast 7 to 10 knots
after midnight. Seas 3 to 4 feet. Scattered heavy showers through
the night. A slight chance of thunderstorms. Numerous heavy
showers through the day.
.WEDNESDAY...Southeast winds 7 to 10 knots, becoming 10 to
15 knots. Seas 3 to 4 feet. Scattered heavy showers with a slight
chance of thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ116-200215-
Kaiwi Channel-
336 AM HST Sat Apr 19 2025

.TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East 4 feet at 6 seconds and north 4 feet at 11 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East northeast winds to 15 knots. Seas 3 to 5 feet.
Wave Detail: East 4 feet at 5 seconds and north 3 feet at
11 seconds. Isolated showers.
.SUNDAY...East northeast winds to 15 knots. Seas 3 to 5 feet.
Wave Detail: East northeast 4 feet at 5 seconds and north 3 feet
at 11 seconds. Isolated showers in the morning, then scattered
showers in the afternoon.
.SUNDAY NIGHT...East northeast winds to 15 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds and north 3 feet at
10 seconds. Scattered showers.
.MONDAY...East northeast winds to 15 knots. Seas 3 to 5 feet.
Wave Detail: North northeast 3 feet at 10 seconds. Scattered
showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.
Isolated showers.
.TUESDAY...South winds 7 to 10 knots, becoming variable less than
10 knots. Seas 3 to 5 feet. Scattered showers with a slight
chance of thunderstorms.
.WEDNESDAY...Winds variable less than 10 knots, becoming east
southeast 10 to 15 knots. Seas 3 to 5 feet. Scattered showers
with a slight chance of thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ117-200215-
Maui County Windward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds to 15 knots. Seas 5 to 6 feet. Wave Detail:
East 4 feet at 6 seconds and north 4 feet at 11 seconds. A slight
chance of thunderstorms this morning. Scattered heavy showers.
.TONIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 4 feet at 6 seconds and north 3 feet at
11 seconds. Scattered showers.
.SUNDAY...East winds 15 to 20 knots. Seas to 5 feet. Wave Detail:
East 4 feet at 7 seconds and north 3 feet at 11 seconds.
Scattered showers.
.SUNDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 7 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
North 3 feet at 10 seconds. Scattered showers.
.MONDAY NIGHT...East southeast winds to 15 knots. Seas to 5 feet.
Wave Detail: North 3 feet at 14 seconds. Scattered showers.
.TUESDAY...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: Northwest 3 feet at 12 seconds. Scattered showers
with a slight chance of thunderstorms.
.WEDNESDAY...East southeast winds 15 to 20 knots. Seas 4 to
6 feet. Scattered showers with a slight chance of thunderstorms.

Winds and seas higher in and near tstms.

$$

PHZ118-200215-
Maui County Leeward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East southeast winds 10 to 15 knots, becoming 7 to
10 knots this afternoon. Seas 3 to 4 feet. Wave Detail: East
southeast 3 feet at 5 seconds. Scattered showers.
.TONIGHT...East northeast winds 7 to 10 knots, becoming 10 to
15 knots after midnight. Seas 3 to 4 feet. Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Isolated
showers.
.SUNDAY NIGHT...East northeast winds 10 to 15 knots, becoming
7 to 10 knots after midnight. Seas 3 to 4 feet. Scattered
showers.
.MONDAY...East northeast winds 7 to 10 knots. Seas 3 to 4 feet.
Scattered showers, mainly in the morning.
.MONDAY NIGHT...East southeast winds 10 to 15 knots. Seas 3 to
4 feet. Isolated showers.
.TUESDAY...South southeast winds 7 to 10 knots, becoming variable
less than 10 knots, then becoming southeast 7 to 10 knots after
midnight. Seas 3 to 4 feet. Scattered showers.
.WEDNESDAY...South southeast winds 7 to 10 knots, backing to east
southeast 10 to 15 knots. Seas 3 to 4 feet. Scattered showers.

$$

PHZ119-200215-
Maalaea Bay-
336 AM HST Sat Apr 19 2025

.TODAY...North northeast winds to 15 knots, becoming north this
afternoon. Seas to 2 feet or less. Scattered showers, mainly this
morning.
.TONIGHT...North winds to 20 knots. Seas to 2 feet or less.
Isolated showers in the evening.
.SUNDAY...North winds to 20 knots. Seas to 2 feet or less.
Isolated showers in the afternoon.
.SUNDAY NIGHT...North winds to 20 knots. Seas to 2 feet or less.
Isolated showers.
.MONDAY...North winds to 20 knots. Seas to 2 feet or less.
Scattered showers, mainly in the morning.
.MONDAY NIGHT...North winds to 15 knots. Seas to 2 feet or less.
Isolated showers.
.TUESDAY...North winds to 15 knots, becoming variable less than
10 knots. Seas to 2 feet or less. Scattered showers.
.WEDNESDAY...Winds variable less than 10 knots, becoming north to
20 knots. Seas to 2 feet or less. Scattered showers through the
night, then isolated showers through the day.

$$

PHZ120-200215-
Pailolo Channel-
336 AM HST Sat Apr 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Scattered showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Isolated showers in the evening. Scattered showers after
midnight.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Scattered showers.
.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Scattered showers.
.MONDAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Scattered showers, mainly in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Isolated showers.
.TUESDAY...Southeast winds 10 to 15 knots, veering to northwest
in the afternoon, then becoming variable less than 10 knots. Seas
to 3 feet. Scattered showers.
.WEDNESDAY...Winds variable less than 10 knots, becoming
southwest 10 to 15 knots in the afternoon, then becoming east
northeast 15 to 20 knots. Seas to 3 feet. Scattered showers.

$$

PHZ121-200215-
Alenuihaha Channel-
336 AM HST Sat Apr 19 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 4 feet at 5 seconds. Scattered showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 4 feet at 5 seconds. Isolated showers.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 3 feet at 6 seconds. Isolated showers.
.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 3 feet at 5 seconds. Scattered showers.
.MONDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Scattered showers, mainly in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.
Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Isolated
showers through the night, then scattered showers through the
day.
.WEDNESDAY...East northeast winds 10 to 15 knots, becoming east
15 to 20 knots. Seas 3 to 5 feet. Scattered showers.

$$

PHZ122-200215-
Big Island Windward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds and north 3 feet
at 11 seconds. A slight chance of thunderstorms this morning.
Scattered showers.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds and north 3 feet at
11 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds and north 3 feet at
11 seconds. Scattered showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 7 seconds and north 3 feet at 10 seconds.
Scattered showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: North 3 feet at 10 seconds. Scattered showers.
.MONDAY NIGHT...East southeast winds 10 to 15 knots. Seas 4 to
5 feet. Scattered showers.
.TUESDAY...East southeast winds 10 to 15 knots, becoming
southeast 15 to 20 knots after midnight. Seas 4 to 5 feet.
Scattered showers.
.WEDNESDAY...East southeast winds 15 to 20 knots. Seas 4 to
6 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ123-200215-
Big Island Leeward Waters-
336 AM HST Sat Apr 19 2025

.TODAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds 15 to 20 knots, becoming
to 15 knots this afternoon. Seas 3 to 4 feet. Wave Detail: East
3 feet at 5 seconds. Scattered showers, mainly this morning.
.TONIGHT...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds to 15 knots, becoming
15 to 20 knots after midnight. Seas 3 to 5 feet. Wave Detail:
East 3 feet at 4 seconds. Isolated showers.
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...East to 15 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers.
.SUNDAY NIGHT...Winds variable less than 10 knots west of the Big
Island...East 15 to 20 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...East 15 to 20 knots near South Point. Seas 3 to 5 feet.
Scattered showers, mainly in the morning.
.MONDAY NIGHT...West of the Big Island, winds variable less than
10 knots, becoming north 7 to 10 knots after midnight. Near South
Point, east winds to 15 knots. Seas 3 to 5 feet. Isolated
showers.
.TUESDAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds 10 to 15 knots, becoming
to 15 knots. Seas 3 to 5 feet. Isolated showers through the
night, then scattered showers through the day.
.WEDNESDAY...West of the Big Island, winds variable less than
10 knots, becoming north 7 to 10 knots in the evening, then
becoming variable less than 10 knots after midnight. Near South
Point, east winds 15 to 20 knots. Seas 4 to 6 feet. Isolated
showers.

$$

PHZ124-200215-
Big Island Southeast Waters-
336 AM HST Sat Apr 19 2025

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Scattered showers,
mainly this morning.
.TONIGHT...East northeast winds to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds. Scattered
showers.
.SUNDAY...East northeast winds to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 7 seconds. Scattered showers.
.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 7 seconds. Scattered showers.
.MONDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Scattered showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Scattered showers.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Scattered
showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet.
Isolated showers.

$$