485
FZHW50 PHFO 200111
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
311 PM HST Sat Apr 19 2025

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

PHZ100-201415-
311 PM 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.

$$

PHZ110-201415-
Kauai Northwest Waters-
311 PM HST Sat Apr 19 2025

.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 southeast winds to 10 knots. Seas 4 to 5 feet.
Wave Detail: Northwest 3 feet at 13 seconds. Numerous heavy
showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...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.
.THURSDAY...South southeast winds 10 to 15 knots. Seas 4 to
5 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ111-201415-
Kauai Windward Waters-
311 PM HST Sat Apr 19 2025

.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. Seas to 5 feet.
Wave Detail: Northwest 3 feet at 13 seconds. Numerous heavy
showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...South southeast winds 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.
.THURSDAY...Southeast winds 10 to 15 knots. Seas to 5 feet.
Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ112-201415-
Kauai Leeward Waters-
311 PM HST Sat Apr 19 2025

.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 to 10 knots. Seas 3 to 5 feet.
Wave Detail: Northwest 3 feet at 12 seconds. Scattered heavy
showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...South southeast winds 10 to 15 knots. Seas 3 to
4 feet. Numerous heavy showers with a slight chance of
thunderstorms.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas 3 to
5 feet. Numerous heavy showers with a slight chance of
thunderstorms.
.THURSDAY...South southeast winds 10 to 15 knots. Seas 4 to
5 feet. Numerous showers, mainly in the morning.

Winds and seas higher in and near tstms.

$$

PHZ113-201415-
Kauai Channel-
311 PM HST Sat Apr 19 2025

.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 with a slight chance of thunderstorms.
.TUESDAY NIGHT...South winds 7 to 10 knots. Seas 4 to 5 feet.
Numerous heavy showers with a slight chance of thunderstorms.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Numerous heavy showers with a slight chance of thunderstorms.
.THURSDAY...South southeast winds 10 to 15 knots. Seas 4 to
5 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ114-201415-
Oahu Windward Waters-
311 PM HST Sat Apr 19 2025

.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. Seas to 5 feet. Wave
Detail: Northwest 3 feet at 13 seconds. Numerous heavy showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 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.
.THURSDAY...Southeast winds 15 to 20 knots, easing to 10 to
15 knots. Seas 4 to 5 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ115-201415-
Oahu Leeward Waters-
311 PM HST Sat Apr 19 2025

.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. Seas 3 to 4 feet.
Scattered heavy showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...Winds variable less than 10 knots, becoming
south southeast 7 to 10 knots after midnight. Seas 3 to 4 feet.
Numerous heavy showers with a slight chance of thunderstorms.
.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.
.THURSDAY...South southeast winds 10 to 15 knots, becoming
variable less than 10 knots. Seas 3 to 5 feet. Scattered showers
in the morning, then isolated showers through the night.
Scattered showers after midnight.

Winds and seas higher in and near tstms.

$$

PHZ116-201415-
Kaiwi Channel-
311 PM HST Sat Apr 19 2025

.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 southeast winds 7 to 10 knots. Seas 3 to 5 feet.
Scattered showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...South winds 7 to 10 knots in the evening,
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.
.THURSDAY...South southeast winds 10 to 15 knots, becoming 7 to
10 knots. Seas 3 to 5 feet. Scattered showers, mainly in the
morning.

Winds and seas higher in and near tstms.

$$

PHZ117-201415-
Maui County Windward Waters-
311 PM HST Sat Apr 19 2025

.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 to 5 feet.
Wave Detail: Northwest 3 feet at 13 seconds. Scattered showers
with a slight chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 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.
.THURSDAY...East southeast winds 15 to 20 knots. Seas 5 to
6 feet. Scattered showers in the morning. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ118-201415-
Maui County Leeward Waters-
311 PM HST Sat Apr 19 2025

.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. Seas 3 to 4 feet.
Scattered showers.
.TUESDAY NIGHT...Winds variable less than 10 knots, 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.
.THURSDAY...East northeast winds 10 to 15 knots, veering to south
7 to 10 knots in the afternoon and evening, backing to southeast
10 to 15 knots after midnight. Seas 3 to 4 feet. Scattered
showers, mainly in the morning.

$$

PHZ119-201415-
Maalaea Bay-
311 PM HST Sat Apr 19 2025

.TONIGHT...North winds to 20 knots. Seas to 2 feet or less.
Isolated showers this 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. Seas to 2 feet or less.
Scattered showers.
.TUESDAY NIGHT...Winds 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.
.THURSDAY...North winds to 15 knots in the morning, becoming
variable less than 10 knots, then becoming north to 15 knots.
Seas to 2 feet or less. Isolated showers in the morning.

$$

PHZ120-201415-
Pailolo Channel-
311 PM HST Sat Apr 19 2025

.TONIGHT...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Isolated showers this 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. Seas to 3 feet. Scattered showers.
.TUESDAY NIGHT...Winds 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.
.THURSDAY...North northwest winds 10 to 15 knots, veering to
south southeast 7 to 10 knots in the afternoon, backing to east
10 to 15 knots. Seas to 3 feet. Isolated showers.

$$

PHZ121-201415-
Alenuihaha Channel-
311 PM HST Sat Apr 19 2025

.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.
.TUESDAY NIGHT...East southeast winds 10 to 15 knots. Seas 3 to
4 feet. Scattered showers.
.WEDNESDAY...East northeast winds 10 to 15 knots, becoming east
15 to 20 knots. Seas 3 to 5 feet. Scattered showers.
.THURSDAY...East southeast winds 15 to 20 knots, becoming east
10 to 15 knots. Seas 4 to 5 feet. Isolated showers in the
morning. Isolated showers through the day.

$$

PHZ122-201415-
Big Island Windward Waters-
311 PM HST Sat Apr 19 2025

.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. Seas 4 to 5 feet.
Scattered showers.
.TUESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to
5 feet. Scattered showers.
.WEDNESDAY...East southeast winds 15 to 20 knots. Seas 4 to
6 feet. Isolated showers.
.THURSDAY...East southeast winds 15 to 20 knots. Seas 5 to
6 feet. Isolated showers in the morning. Isolated showers through
the day.

$$

PHZ123-201415-
Big Island Leeward Waters-
311 PM HST Sat Apr 19 2025

.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, veering to
east southeast in the afternoon. Seas 3 to 5 feet. Isolated
showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...East to 15 knots near South Point. Seas 3 to 5 feet.
Scattered showers.
.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.
.THURSDAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds to 20 knots, becoming
15 to 20 knots. Seas 4 to 6 feet. Isolated showers in the
morning. Isolated showers through the day.

$$

PHZ124-201415-
Big Island Southeast Waters-
311 PM HST Sat Apr 19 2025

.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.
.TUESDAY NIGHT...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.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Isolated
showers.

$$