578
FZHW50 PHFO 201315
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
315 AM HST Mon May 20 2024

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

PHZ100-210215-
315 AM HST Mon May 20 2024

.Synopsis for Hawaiian coastal waters...
As a large broad low continues to weaken and drift further
northwest of the state, high pressure will slowly fill in its
wake. High pressure positioned northeast of the islands will
drive moderate east trades through the week.

$$

PHZ110-210215-
Kauai Northwest Waters-
315 AM HST Mon May 20 2024

.TODAY...East southeast winds 10 to 15 knots, rising to 15 to
20 knots this afternoon. Seas 5 to 6 feet. Wave Detail: East
4 feet at 6 seconds, northwest 3 feet at 9 seconds and south
3 feet at 18 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 7 seconds. Scattered showers.
.TUESDAY...East southeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East southeast winds to 15 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.WEDNESDAY NIGHT...East southeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 8 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers.

$$

PHZ111-210215-
Kauai Windward Waters-
315 AM HST Mon May 20 2024

.TODAY...East southeast winds to 15 knots. Seas 5 to 6 feet. Wave
Detail: East southeast 5 feet at 7 seconds, northwest 3 feet at
9 seconds and south 3 feet at 18 seconds. Scattered showers,
mainly this morning.
.TONIGHT...East southeast winds to 15 knots. Seas 5 to 6 feet.
Wave Detail: East southeast 5 feet at 7 seconds. Scattered
showers.
.TUESDAY...East southeast winds to 15 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East southeast winds to 15 knots. Seas 5 to
6 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.WEDNESDAY...East southeast winds to 15 knots. Seas to 6 feet.
Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.WEDNESDAY NIGHT...East southeast winds 15 to 20 knots. Seas 6 to
7 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Isolated showers.

$$

PHZ112-210215-
Kauai Leeward Waters-
315 AM HST Mon May 20 2024

.TODAY...East southeast winds 10 to 15 knots. Seas to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds, northwest 3 feet
at 9 seconds and south 3 feet at 18 seconds. Isolated showers.
.TONIGHT...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds. Isolated
showers.
.TUESDAY...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds. Isolated
showers.
.TUESDAY NIGHT...East southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East southeast 4 feet at 7 seconds. Isolated
showers.
.WEDNESDAY...Winds variable less than 10 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers.
.WEDNESDAY NIGHT...East northeast winds 7 to 10 knots, veering to
east 10 to 15 knots after midnight. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 10 to 15 knots, rising to 15 to 20 knots.
Seas 4 to 6 feet. Wave Detail: East southeast 5 feet at
7 seconds. Isolated showers.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave
Detail: East 7 feet at 7 seconds. Isolated showers.

$$

PHZ113-210215-
Kauai Channel-
315 AM HST Mon May 20 2024

.TODAY...East winds 10 to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 4 feet at 6 seconds and south 3 feet at
18 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East 4 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.

$$

PHZ114-210215-
Oahu Windward Waters-
315 AM HST Mon May 20 2024

.TODAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East southeast 5 feet at 7 seconds, northwest 3 feet at
9 seconds and south 3 feet at 18 seconds. Scattered showers,
mainly this morning.
.TONIGHT...East southeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 5 feet at 7 seconds. Scattered showers.
.TUESDAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 7 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.

$$

PHZ115-210215-
Oahu Leeward Waters-
315 AM HST Mon May 20 2024

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds and south 3 feet at
18 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.TUESDAY NIGHT...East winds to 10 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East winds 7 to 10 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. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds. Scattered
showers.
.THURSDAY...East winds 10 to 15 knots, becoming east northeast
15 to 20 knots. Seas 4 to 5 feet. Wave Detail: East 5 feet at
7 seconds. Isolated showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.

$$

PHZ116-210215-
Kaiwi Channel-
315 AM HST Mon May 20 2024

.TODAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East southeast 5 feet at 6 seconds and south 3 feet at
18 seconds. Isolated showers.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.
.FRIDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.

$$

PHZ117-210215-
Maui County Windward Waters-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...East winds 15 to 20 knots, rising to 20 to 25 knots this
afternoon. Seas to 6 feet. Wave Detail: East southeast 6 feet at
7 seconds and northwest 3 feet at 9 seconds. Scattered showers,
mainly this morning.
.TONIGHT...East southeast winds 20 to 25 knots, easing to 15 to
20 knots after midnight. Seas to 6 feet. Wave Detail: East 6 feet
at 7 seconds. Scattered showers.
.TUESDAY...East southeast winds 15 to 20 knots. Seas to 6 feet.
Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East southeast winds to 20 knots. Seas 6 to
7 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers.
.WEDNESDAY...East southeast winds to 20 knots. Seas 6 to 7 feet.
Wave Detail: East 7 feet at 7 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds to 20 knots. Seas to 7 feet. Wave
Detail: East 7 feet at 7 seconds. Scattered showers.
.THURSDAY...East winds to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 7 feet at 7 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 6 feet at 7 seconds. Isolated showers.

$$

PHZ118-210215-
Maui County Leeward Waters-
315 AM HST Mon May 20 2024

.TODAY...East winds 15 to 20 knots, becoming east southeast 20 to
25 knots this afternoon. Seas 4 to 6 feet. Wave Detail: East
southeast 5 feet at 7 seconds and south 4 feet at 18 seconds.
Isolated showers.
.TONIGHT...East southeast winds 20 to 25 knots, becoming east
15 to 20 knots after midnight. Seas 4 to 6 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 15 to 20 knots, becoming east southeast
20 to 25 knots in the afternoon. Seas 3 to 5 feet. Wave Detail:
East southeast 4 feet at 6 seconds. Isolated showers.
.TUESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 4 feet at 7 seconds. Isolated
showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 6 seconds. Scattered
showers.
.THURSDAY...East northeast winds 15 to 20 knots, becoming east
10 to 15 knots in the afternoon and evening, then becoming east
northeast 15 to 20 knots after midnight. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers.
.FRIDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the evening, then  easing to 10 to 15 knots after
midnight. Seas 3 to 5 feet. Wave Detail: East southeast 5 feet at
6 seconds. Isolated showers.

$$

PHZ119-210215-
Maalaea Bay-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...North winds to 25 knots. Seas to 2 feet or less.
.TONIGHT...North winds to 25 knots. Seas to 2 feet or less, then
to 3 feet after midnight.
.TUESDAY...North winds to 25 knots. Seas to 3 feet.
.TUESDAY NIGHT...North northeast winds to 25 knots. Seas to
3 feet.
.WEDNESDAY...North northeast winds to 25 knots. Seas to 3 feet.
.WEDNESDAY NIGHT...North northeast winds to 25 knots. Seas to
3 feet. Isolated showers after midnight.
.THURSDAY...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.

$$

PHZ120-210215-
Pailolo Channel-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

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

$$

PHZ121-210215-
Alenuihaha Channel-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...East winds 20 to 25 knots. Seas 6 to 8 feet. Wave
Detail: East 7 feet at 6 seconds and south 4 feet at 18 seconds.
Isolated showers.
.TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 8 feet.
Wave Detail: East 7 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 20 to 25 knots. Seas 5 to 6 feet. Wave
Detail: East northeast 6 feet at 6 seconds. Isolated showers.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to
6 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 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. Scattered showers.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 5 to
7 feet. Wave Detail: East 6 feet at 6 seconds. Isolated showers.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.

$$

PHZ122-210215-
Big Island Windward Waters-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds and south 3 feet at 18 seconds.
Scattered showers, mainly this morning.
.TONIGHT...East winds 15 to 20 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers.
.TUESDAY...East southeast winds 15 to 20 knots, becoming east
20 to 25 knots in the afternoon. Seas 5 to 6 feet. Wave Detail:
East 5 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East southeast winds 15 to 20 knots. Seas 5 to
7 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers
in the evening, then numerous showers after midnight.
.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 5 feet at 7 seconds. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 7 feet.
Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.THURSDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave
Detail: East 5 feet at 8 seconds. Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas to 6 feet. Wave Detail:
East 5 feet at 8 seconds. Isolated showers.

$$

PHZ123-210215-
Big Island Leeward Waters-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...West northwest winds 7 to 10 knots west of the Big
Island...east to 25 knots near South Point. Seas 4 to 6 feet.
Wave Detail: East southeast 6 feet at 6 seconds and south 4 feet
at 18 seconds. Isolated showers.
.TONIGHT...West of the Big Island, north winds 10 to 15 knots,
backing to south southwest 7 to 10 knots after midnight. Near
South Point, east winds 20 to 25 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 6 feet at 6 seconds. Isolated showers.
.TUESDAY...Northwest winds 7 to 10 knots west of the Big Island...
 east 20 to 25 knots near South Point. Seas 4 to 6 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 to 25 knots near South Point. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east 20 to 25 knots near South Point. Seas 4 to 6 feet.
Wave Detail: East southeast 5 feet at 6 seconds. Isolated
showers.
.WEDNESDAY NIGHT...West of the Big Island, north northwest winds
7 to 10 knots in the evening, becoming variable less than
10 knots. Near South Point, east winds 20 to 25 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers.
.THURSDAY...West of the Big Island, winds variable less than
10 knots, becoming northwest 7 to 10 knots in the afternoon, then
becoming variable less than 10 knots. Near South Point, east
winds 20 to 25 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet
at 6 seconds. Isolated showers.
.FRIDAY...West of the Big Island, northwest winds 7 to 10 knots,
backing to west southwest in the afternoon, then becoming
variable less than 10 knots. Near South Point, east winds 20 to
25 knots. Seas 5 to 7 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers.

$$

PHZ124-210215-
Big Island Southeast Waters-
315 AM HST Mon May 20 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING...

.TODAY...East winds 20 to 25 knots. Seas 5 to 6 feet. Wave
Detail: East 5 feet at 7 seconds and south 3 feet at 18 seconds.
Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas 6 to 7 feet.
Wave Detail: East 5 feet at 7 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
7 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers
in the evening, then numerous showers after midnight.
.WEDNESDAY...East northeast winds 20 to 25 knots. Seas 6 to
8 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.WEDNESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
8 feet. Wave Detail: East 6 feet at 8 seconds. Scattered showers.
.THURSDAY...East northeast winds 20 to 25 knots. Seas 6 to
8 feet. Wave Detail: East 7 feet at 6 seconds. Isolated showers.
.FRIDAY...East northeast winds 20 to 25 knots. Seas 6 to 8 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers.

$$