Coastal Waters Forecast
Issued by NWS Honolulu, HI

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000
FZHW50 PHFO 240530
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
730 PM HST Mon Apr 23 2018

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

PHZ100-241815-
730 PM HST Mon Apr 23 2018

.Synopsis for Hawaiian coastal waters...
Fresh to strong trade winds will increase slightly as a strong
surface high passes north of the islands. Winds will gradually
decline Wednesday through Friday as the ridge north of the state
weakens. A front is expected to move across the western half of
the island chain Friday, then reach the central or eastern end of
the state Saturday.

$$

PHZ110-241815-
Kauai Northwest Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 5 feet. Scattered showers in the evening, then
isolated showers after midnight.
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet. North
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 8 feet. North swell
3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 knots. Wind waves 5 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...Winds variable less than 10 knots becoming northwest
10 knots in the afternoon and evening, then becoming north
20 knots after midnight. Wind waves 4 feet. Northwest swell
5 feet. Haze. Scattered showers.
.SATURDAY...North winds 10 knots. Wind waves 3 to 4 feet. North
swell 6 to 8 feet. Isolated showers.

$$

PHZ111-241815-
Kauai Windward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 5 feet. Scattered showers in the evening, then
isolated showers after midnight.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
isolated showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. North swell
3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...Southeast winds 10 knots. Wind waves 5 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...South winds 10 knots veering northwest. Wind waves
4 feet. Northwest swell 5 to 6 feet. Haze. Scattered showers.
.SATURDAY...North winds 10 knots. Wind waves 4 feet. North swell
6 to 8 feet. Scattered showers.

$$

PHZ112-241815-
Kauai Leeward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Isolated showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
isolated showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 8 feet. North swell
3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 3 feet. Northwest swell
5 feet. Haze in the evening. Isolated showers through the night.
.FRIDAY...Winds variable less than 10 knots becoming north
15 knots. Wind waves 3 to 5 feet. Northwest swell 5 to 6 feet.
Haze. Scattered showers.
.SATURDAY...North winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 6 to 8 feet. Isolated showers.

$$

PHZ113-241815-
Kauai Channel-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
8 feet. Northwest swell 5 feet. Isolated showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet. North
swell 4 feet. Isolated showers in the evening.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet. North
swell 3 feet. Isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 10 knots. Wind waves 5 feet.
Northwest swell 5 feet. Isolated showers.
.FRIDAY...Winds variable less than 10 knots becoming southwest
10 knots in the afternoon, then veering north. Wind waves 4 feet.
Northwest swell 5 feet. Haze. Scattered showers.
.SATURDAY...North winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 6 to 8 feet. Scattered showers.

$$

PHZ114-241815-
Oahu Windward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 knots. Wind waves 5 feet.
Northwest swell 5 feet. Isolated showers.
.FRIDAY...South winds 10 knots veering southwest in the
afternoon, then veering northwest. Wind waves 4 feet. Northwest
swell 5 feet. Haze. Scattered showers.
.SATURDAY...North winds 10 knots. Wind waves 4 feet. Northwest
swell 6 to 8 feet. Scattered showers.

$$

PHZ115-241815-
Oahu Leeward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
8 feet. Northwest swell 4 feet. Isolated showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers through the night.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 3 feet.
Northwest swell 4 feet. Isolated showers.
.FRIDAY...Winds variable less than 10 knots becoming southwest
10 knots in the afternoon, then veering west in the evening
veering north after midnight. Wind waves 3 feet. Northwest swell
5 feet. Haze. Scattered showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 5 to 7 feet. Scattered showers.

$$

PHZ116-241815-
Kaiwi Channel-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
8 feet. Northwest swell 5 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers through the night.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet. North
swell 4 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
4 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.THURSDAY NIGHT...East winds 20 knots easing to 10 knots after
midnight. Wind waves 5 feet. Northwest swell 4 feet. Isolated
showers.
.FRIDAY...Winds variable less than 10 knots becoming west
10 knots in the evening, then veering north after midnight. Wind
waves 4 feet. Northwest swell 5 feet. Haze. Showers likely.
.SATURDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 5 to 7 feet. Showers likely.

$$

PHZ117-241815-
Maui County Windward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 5 feet. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...Southeast winds 15 knots veering southwest in the
evening, then veering northwest after midnight. Wind waves 4 to
5 feet. Northwest swell 5 feet. Haze. Scattered showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 4 to 5 feet.
Northwest swell 5 to 7 feet. Showers likely.

$$

PHZ118-241815-
Maui County Leeward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
8 feet. Northwest swell 3 feet. Isolated showers through the
night.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 3 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds 15 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 6 feet.
North swell 3 feet. Isolated showers through the night.
.THURSDAY...Northeast winds 15 knots. Wind waves 5 feet. North
swell 3 feet. Isolated showers in the morning.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers in the evening.
.FRIDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots, then becoming northwest 10 knots.
Wind waves 3 feet. Northwest swell 4 feet. Haze. Showers likely.
.SATURDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 4 to 5 feet. Showers likely.

$$

PHZ119-241815-
Maalaea Bay-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...North winds to 25 knots. Wind waves 4 feet.
Isolated showers after midnight.
.TUESDAY...North winds to 25 knots. Wind waves 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 4 feet.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 3 feet.
Isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
3 feet. Isolated showers after midnight.
.THURSDAY...Northeast winds 20 knots. Wind waves 2 feet or less.
Isolated showers in the morning.
.THURSDAY NIGHT...Northeast winds 10 knots. Wind waves 2 feet or
less.
.FRIDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. Haze. Showers likely.
.SATURDAY...North winds 10 knots rising to 20 knots in the
afternoon, then becoming northeast 10 knots. Wind waves 2 feet or
less. Showers likely.

$$

PHZ120-241815-
Pailolo Channel-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
isolated showers after midnight.
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 6 feet. North
swell 3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 3 feet. Isolated showers through the night.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
3 feet. Isolated showers through the day.
.THURSDAY NIGHT...Northeast winds 10 knots in the evening
becoming variable less than 10 knots. Wind waves 4 feet. North
swell 4 feet. Isolated showers.
.FRIDAY...Winds variable less than 10 knots becoming south
10 knots in the afternoon, then becoming variable less than
10 knots in the evening becoming northwest 10 knots after
midnight. Wind waves 3 to 4 feet. Northwest swell 4 feet. Haze.
Showers likely.
.SATURDAY...Northeast winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 4 to 5 feet. Showers likely.

$$

PHZ121-241815-
Alenuihaha Channel-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds to 30 knots. Wind waves 9 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.TUESDAY...East winds to 30 knots. Wind waves 10 feet. Northwest
swell 4 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...Northeast winds to 30 knots. Wind waves 10 feet.
Northwest swell 4 feet. Isolated showers in the evening.
Scattered showers after midnight.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 9 feet.
North swell 4 feet. Scattered showers in the morning. Isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
North swell 4 feet. Isolated showers in the evening. Scattered
showers after midnight.
.THURSDAY...East winds to 25 knots. Wind waves 7 feet. North
swell 3 feet. Scattered showers in the morning. Isolated showers
in the afternoon.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet. North
swell 4 feet. Haze through the night. Scattered showers in the
evening. Isolated showers after midnight.
.FRIDAY...East winds 15 knots veering south in the afternoon,
then veering west. Wind waves 3 to 4 feet. Northwest swell 4 to
5 feet. Haze. Isolated showers.
.SATURDAY...North winds 10 knots becoming northeast 20 knots.
Wind waves 5 feet. Northwest swell 4 to 6 feet. Showers likely.

$$

PHZ122-241815-
Big Island Windward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 5 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Showers likely in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...South winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 5 feet. Scattered showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 4 to 5 feet.
Northwest swell 4 to 6 feet. Showers likely.

$$

PHZ123-241815-
Big Island Leeward Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
9 feet. Northwest swell 4 feet. Haze. Scattered showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 feet.
Northwest swell 3 feet. Haze. Scattered showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
9 feet. Northwest swell 3 feet. Haze. Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 8 feet. Haze.
Isolated showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
8 feet. Haze. Isolated showers.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 7 feet. Haze.
Isolated showers.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 6 feet.
Northwest swell 3 feet after midnight. Haze. Isolated showers.
.FRIDAY...West of the Big Island, winds variable less than
10 knots becoming north 10 knots after midnight. Near South
Point, east winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 3 feet. Haze. Scattered showers.
.SATURDAY...West of the Big Island, north winds 10 knots veering
east in the evening, then becoming variable less than 10 knots
after midnight. Near South Point, east winds 10 knots in the
morning becoming variable less than 10 knots, then becoming east
15 knots. Wind waves 4 to 5 feet. Northwest swell 3 to 4 feet.
Haze. Scattered showers.

$$

PHZ124-241815-
Big Island Southeast Waters-
730 PM HST Mon Apr 23 2018

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
9 feet. Northwest swell 4 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet.
Northwest swell 3 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
8 feet. North swell 3 feet. Scattered showers.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Scattered showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 3 feet. Scattered showers.
.FRIDAY...East winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 4 feet. Scattered showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 4 feet.
Northwest swell 3 to 4 feet. Haze. Showers likely.

$$



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