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000
FZHW50 PHFO 121320
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
320 AM HST Fri Apr 12 2024

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

PHZ100-130230-
320 AM HST Fri Apr 12 2024

.Synopsis for Hawaiian coastal waters...
Low pressure developing several hundred nautical miles northwest
of the state will bring the threat of thunderstorms over the next
several days with strong thunderstorms possible through the day.
This low will lift northeastward late Saturday through early next
week. Surface ridge will build eastward in its wake Monday through
Tuesday.

$$

PHZ110-130230-
Kauai Northwest Waters-
320 AM HST Fri Apr 12 2024

.TODAY...Southeast winds 20 knots. Wind waves to 5 feet. North
swell 4 feet. Occasional heavy showers with a chance of
thunderstorms.
.TONIGHT...South winds 20 knots. Wind waves to 6 feet. Northwest
swell 4 feet. Occasional heavy showers with a slight chance of
thunderstorms.
.SATURDAY...South winds 15 knots. Wind waves to 5 feet. West
swell 4 feet. Showers likely with a slight chance of
thunderstorms.
.SATURDAY NIGHT...Southwest winds 15 knots. Wind waves to 5 feet.
Northwest swell 5 feet. Occasional showers. Isolated
thunderstorms after midnight.
.SUNDAY...West winds 15 knots. Wind waves to 5 feet. Northwest
swell 5 feet. Occasional showers.
.SUNDAY NIGHT...West winds 10 knots. Wind waves to 4 feet.
Northwest swell 6 feet. Scattered showers.
.MONDAY...Northwest winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 7 to 8 feet. Isolated showers.
.TUESDAY...North winds 15 knots. Wind waves around 3 feet. North
swell 7 to 8 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ111-130230-
Kauai Windward Waters-
320 AM HST Fri Apr 12 2024

...SEVERE THUNDERSTORM WATCH 1 IN EFFECT UNTIL 10 AM HST THIS
MORNING...

.TODAY...Southeast winds 20 knots. Wind waves to 6 feet. North
swell 3 feet. Occasional heavy showers with a chance of
thunderstorms.
.TONIGHT...South winds 15 knots. Wind waves to 6 feet. Northwest
swell 3 feet. Heavy showers likely in the evening. A slight
chance of thunderstorms. Scattered showers after midnight.
.SATURDAY...South winds 15 knots. Wind waves to 5 feet. Northwest
swell 4 feet. Scattered showers.
.SATURDAY NIGHT...South winds 15 knots. Wind waves to 5 feet.
Northwest swell 4 feet. Occasional showers.
.SUNDAY...Southwest winds 15 knots. Wind waves to 5 feet.
Northwest swell 5 feet. Occasional showers.
.SUNDAY NIGHT...West winds 10 knots. Wind waves to 5 feet.
Northwest swell 6 feet. Scattered showers.
.MONDAY...Northwest winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 7 to 8 feet. Scattered showers.
.TUESDAY...North winds 15 knots. Wind waves around 3 feet. North
swell 7 to 8 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ112-130230-
Kauai Leeward Waters-
320 AM HST Fri Apr 12 2024

...SEVERE THUNDERSTORM WATCH 1 IN EFFECT UNTIL 10 AM HST THIS
MORNING...

.TODAY...Southeast winds 20 knots. Wind waves to 5 feet. North
swell 4 feet. Occasional heavy showers with a chance of
thunderstorms.
.TONIGHT...South winds 20 knots. Wind waves to 5 feet. Northwest
swell 4 feet. Heavy showers likely in the evening. A slight
chance of thunderstorms. Scattered heavy showers after midnight.
.SATURDAY...South winds 15 knots. Wind waves to 5 feet. Northwest
swell 4 feet. Scattered showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...South winds 15 knots. Wind waves to 4 feet.
Northwest swell 5 feet. Occasional showers.
.SUNDAY...Southwest winds 15 knots. Wind waves to 4 feet.
Northwest swell 5 feet. Occasional showers.
.SUNDAY NIGHT...West winds 10 knots. Wind waves to 4 feet.
Northwest swell 6 feet. Scattered showers.
.MONDAY...Northwest winds 15 knots. Wind waves around 3 feet.
Northwest swell 7 to 8 feet. Isolated showers.
.TUESDAY...North winds 15 knots. Wind waves around 2 feet or
less. North swell 7 to 8 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ113-130230-
Kauai Channel-
320 AM HST Fri Apr 12 2024

...SEVERE THUNDERSTORM WATCH 1 IN EFFECT UNTIL 10 AM HST THIS
MORNING...

.TODAY...Southeast winds 15 knots. Wind waves to 6 feet. North
swell 3 feet. Scattered heavy showers this morning. A chance of
thunderstorms. Numerous heavy showers this afternoon.
.TONIGHT...South winds 15 knots. Wind waves to 6 feet. North
swell 3 feet. A slight chance of thunderstorms in the evening.
Scattered showers.
.SATURDAY...South winds 10 knots. Wind waves to 5 feet. Northwest
swell 3 feet. Scattered showers.
.SATURDAY NIGHT...South winds 15 knots. Wind waves to 4 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
showers likely after midnight.
.SUNDAY...Southwest winds 15 knots. Wind waves to 5 feet.
Northwest swell 4 feet. Occasional showers.
.SUNDAY NIGHT...West winds 10 knots. Wind waves to 5 feet.
Northwest swell 5 feet. Showers likely.
.MONDAY...Northwest winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 6 to 7 feet. Scattered showers.
.TUESDAY...North winds 15 knots. Wind waves around 3 feet. North
swell 7 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ114-130230-
Oahu Windward Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
...SEVERE THUNDERSTORM WATCH 1 IN EFFECT UNTIL 10 AM HST THIS
MORNING...

.TODAY...East winds 20 knots. Wind waves to 7 feet. North swell
3 feet. Scattered showers with a chance of thunderstorms.
.TONIGHT...Southeast winds 20 knots. Wind waves to 6 feet.
Northwest swell 3 feet. Scattered showers, mainly in the evening.
.SATURDAY...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 4 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
showers likely after midnight.
.SUNDAY...South winds 15 knots. Wind waves to 5 feet. Northwest
swell 4 feet. Occasional showers.
.SUNDAY NIGHT...Southwest winds 15 knots. Wind waves to 5 feet.
Northwest swell 5 feet. Occasional showers.
.MONDAY...Northwest winds 10 knots. Wind waves 3 to 4 feet.
Northwest swell 7 feet. Scattered showers.
.TUESDAY...North winds 10 knots. Wind waves around 3 feet. North
swell 7 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ115-130230-
Oahu Leeward Waters-
320 AM HST Fri Apr 12 2024

.TODAY...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Scattered showers.
.TONIGHT...Southeast winds 15 knots. Wind waves to 5 feet.
Isolated showers.
.SATURDAY...South winds 10 knots. Wind waves to 4 feet. West
swell 3 feet. Isolated showers.
.SATURDAY NIGHT...South winds 10 knots. Wind waves to 3 feet.
West swell 3 feet. Scattered showers.
.SUNDAY...South winds 15 knots. Wind waves to 4 feet. Northwest
swell 3 feet. Showers likely.
.SUNDAY NIGHT...Southwest winds 15 knots. Wind waves to 4 feet.
Northwest swell 4 feet. Showers likely.
.MONDAY...Northwest winds 10 knots. Wind waves around 3 feet.
Northwest swell 5 to 6 feet. Scattered showers.
.TUESDAY...North winds 10 knots. Wind waves around 2 feet or
less. Northwest swell 6 feet. Isolated showers.

$$

PHZ116-130230-
Kaiwi Channel-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds 20 knots. Wind waves to 7 feet. North swell
3 feet. Isolated showers this morning, then scattered showers
this afternoon.
.TONIGHT...Southeast winds 20 knots. Wind waves to 6 feet.
Isolated showers.
.SATURDAY...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Scattered showers.
.SUNDAY...South winds 15 knots. Wind waves to 4 feet. Northwest
swell 4 feet. Showers likely.
.SUNDAY NIGHT...Southwest winds 15 knots. Wind waves to 4 feet.
Northwest swell 5 feet. Showers likely.
.MONDAY...West winds 15 knots, becoming variable less than
10 knots. Wind waves 3 to 4 feet. Northwest swell 6 feet. Showers
likely.
.TUESDAY...North winds 10 knots. Wind waves around 3 feet.
Northwest swell 6 feet. Isolated showers.

$$

PHZ117-130230-
Maui County Windward Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds to 25 knots. Wind waves to 8 feet. North
swell 3 feet. Isolated showers.
.TONIGHT...Southeast winds to 25 knots. Wind waves to 6 feet.
Isolated showers.
.SATURDAY...Southeast winds 20 knots. Wind waves to 6 feet.
Northwest swell 3 feet. Isolated showers in the afternoon.
.SATURDAY NIGHT...Southeast winds 20 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Isolated showers in the evening.
Scattered showers after midnight.
.SUNDAY...Southeast winds 15 knots. Wind waves to 5 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY NIGHT...South winds 20 knots. Wind waves to 5 feet.
Northwest swell 5 feet. Scattered showers.
.MONDAY...Southwest winds 15 knots, veering to northwest. Wind
waves 3 to 4 feet. Northwest swell 6 feet. Scattered showers.
.TUESDAY...North winds 10 knots, becoming variable less than
10 knots. Wind waves around 3 feet. Northwest swell 6 feet.
Scattered showers.

$$

PHZ118-130230-
Maui County Leeward Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds 20 knots. Wind waves to 7 feet. Isolated
showers.
.TONIGHT...Southeast winds 20 knots. Wind waves to 6 feet.
Isolated showers.
.SATURDAY...East winds 10 knots, veering to west in the
afternoon. Wind waves to 4 feet. Isolated showers.
.SATURDAY NIGHT...Southeast winds 15 knots. Wind waves to 3 feet.
Northwest swell 3 feet. Scattered showers.
.SUNDAY...South winds 15 knots. Wind waves to 3 feet. Northwest
swell 3 feet. Scattered showers.
.SUNDAY NIGHT...South winds 15 knots. Wind waves to 3 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
showers likely after midnight.
.MONDAY...Southwest winds 15 knots, veering to northwest. Wind
waves around 3 feet. Northwest swell 4 to 5 feet. Scattered
showers.
.TUESDAY...Winds variable less than 10 knots, becoming north
10 knots in the afternoon and evening, then  veering to northeast
after midnight. Wind waves around 2 feet or less. Northwest swell
5 feet. Isolated showers.

$$

PHZ119-130230-
Maalaea Bay-
320 AM HST Fri Apr 12 2024

.TODAY...Winds variable less than 10 knots, becoming east
10 knots this afternoon. Wind waves to 2 feet or less. Isolated
showers this morning.
.TONIGHT...Winds variable less than 10 knots. Wind waves to
2 feet or less.
.SATURDAY...Winds variable less than 10 knots, becoming southwest
10 knots in the afternoon. Wind waves to 2 feet or less. Isolated
showers in the afternoon.
.SATURDAY NIGHT...Winds variable less than 10 knots. Wind waves
to 2 feet or less. Isolated showers.
.SUNDAY...Winds variable less than 10 knots. Wind waves to 2 feet
or less. Scattered showers.
.SUNDAY NIGHT...Winds variable less than 10 knots, becoming south
10 knots after midnight. Wind waves to 2 feet or less. Scattered
showers.
.MONDAY...Southwest winds 10 knots, becoming variable less than
10 knots. Wind waves around 2 feet or less. Scattered showers.
.TUESDAY...Winds variable less than 10 knots. Wind waves around
2 feet or less.

$$

PHZ120-130230-
Pailolo Channel-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds to 25 knots. Wind waves to 7 feet. Isolated
showers.
.TONIGHT...East winds to 25 knots, becoming north 15 knots after
midnight. Wind waves to 6 feet.
.SATURDAY...Northeast winds 15 knots. Wind waves to 5 feet.
Isolated showers in the afternoon.
.SATURDAY NIGHT...Southeast winds 10 knots in the evening,
becoming variable less than 10 knots. Wind waves to 4 feet.
Scattered showers.
.SUNDAY...South winds 10 knots. Wind waves to 4 feet. Scattered
showers in the morning, then showers likely in the afternoon.
.SUNDAY NIGHT...South winds 15 knots. Wind waves to 3 feet.
Northwest swell 3 feet. Showers likely.
.MONDAY...Southwest winds 15 knots, becoming variable less than
10 knots. Wind waves around 3 feet. Northwest swell 4 feet.
Showers likely.
.TUESDAY...Winds variable less than 10 knots, becoming north
10 knots in the afternoon and evening, then becoming variable
less than 10 knots after midnight. Wind waves around 2 feet or
less. Northwest swell 5 feet. Isolated showers.

$$

PHZ121-130230-
Alenuihaha Channel-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds to 25 knots. Wind waves to 8 feet. Isolated
showers.
.TONIGHT...East winds to 25 knots. Wind waves to 6 feet. Isolated
showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers in the afternoon.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...South winds 15 knots. Wind waves to 5 feet. Northwest
swell 3 feet. Scattered showers.
.SUNDAY NIGHT...South winds 15 knots. Wind waves to 4 feet.
Northwest swell 4 feet. Scattered showers.
.MONDAY...Southwest winds 15 knots, veering to west after
midnight. Wind waves around 3 feet. Northwest swell 4 to 5 feet.
Scattered showers.
.TUESDAY...Northwest winds 10 knots, veering to northeast. Wind
waves around 3 feet. Northwest swell 6 feet. Isolated showers.

$$

PHZ122-130230-
Big Island Windward Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds to 25 knots. Wind waves to 7 feet. Isolated
showers.
.TONIGHT...East winds to 25 knots. Wind waves to 6 feet. Isolated
showers.
.SATURDAY...East winds to 25 knots. Wind waves to 5 feet.
.SATURDAY NIGHT...Southeast winds 20 knots. Wind waves to 5 feet.
North swell 3 feet. Isolated showers after midnight.
.SUNDAY...Southeast winds 20 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Isolated showers in the morning.
Scattered showers in the afternoon.
.SUNDAY NIGHT...Southeast winds 15 knots. Wind waves to 4 feet.
Northwest swell 4 feet. Isolated showers.
.MONDAY...South winds 15 knots, veering to southwest after
midnight. Wind waves 3 to 4 feet. Northwest swell 5 feet.
Isolated showers.
.TUESDAY...North winds 10 knots, veering to northeast. Wind waves
around 3 feet. Northwest swell 6 feet. Isolated showers.

$$

PHZ123-130230-
Big Island Leeward Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...Northwest winds 10 knots west of the Big Island...east
to 25 knots near South Point. Wind waves to 8 feet. Isolated
showers.
.TONIGHT...Northwest winds 10 knots west of the Big Island...east
to 25 knots near South Point. Wind waves to 7 feet. Isolated
showers.
.SATURDAY...West of the Big Island, winds variable less than
10 knots, becoming west 10 knots in the afternoon. Near South
Point, east winds 20 knots. Wind waves to 5 feet. Isolated
showers in the afternoon.
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves to
5 feet. Northwest swell 3 feet. Isolated showers.
.SUNDAY...West of the Big Island, winds variable less than
10 knots, becoming south 10 knots in the afternoon. Near South
Point, east winds 15 knots. Wind waves to 5 feet. Northwest swell
3 feet. Scattered showers.
.SUNDAY NIGHT...Winds south winds 15 knots. Wind waves to 4 feet.
Northwest swell 3 feet. Scattered showers.
.MONDAY...South winds 15 knots, veering to southwest in the
evening, then becoming variable less than 10 knots after
midnight. Wind waves around 3 feet. Northwest swell 4 feet.
Scattered showers.
.TUESDAY...North winds 10 knots. Wind waves around 2 feet or
less. Northwest swell 4 feet. Scattered showers.

$$

PHZ124-130230-
Big Island Southeast Waters-
320 AM HST Fri Apr 12 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...

.TODAY...East winds 20 knots. Wind waves to 7 feet. Isolated
showers.
.TONIGHT...East winds to 25 knots. Wind waves to 7 feet. Isolated
showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Northwest swell 3 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves to 5 feet. Northwest
swell 3 feet. Isolated showers in the afternoon.
.SUNDAY NIGHT...Southeast winds 15 knots. Wind waves to 4 feet.
Northwest swell 3 feet. Isolated showers.
.MONDAY...South winds 10 knots, veering to southwest. Wind waves
around 3 feet. Northwest swell 4 feet. Isolated showers.
.TUESDAY...West winds 10 knots, veering to north in the evening,
then becoming variable less than 10 knots after midnight. Wind
waves around 3 feet. Northwest swell 4 feet. Isolated showers.

$$