Coastal Waters Forecast
Issued by NWS Honolulu, HI

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000
FZHW50 PHFO 121303
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
303 AM HST Tue Dec 12 2017

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

PHZ100-130145-
303 AM HST Tue Dec 12 2017

.Synopsis for Hawaiian coastal waters...
A new large north northwest swell will arrive today, peak tonight
and Wednesday, then slowly decline Wednesday night through Friday.
The next cold front is expected to move down the island chain
today through Wednesday morning, with increasing north to
northeast winds behind the front. Winds are forecast to peak
Wednesday night and Thursday, then decrease Friday into Saturday.

$$

PHZ110-130145-
Kauai Northwest Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Northwest winds 15 knots. Wind waves 5 feet. North swell
9 feet increasing to 14 feet in the afternoon. Showers likely in
the morning, then chance of showers in the afternoon.
.TONIGHT...North winds 15 knots. Wind waves 4 feet. Northwest
swell 19 feet. Isolated showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 5 feet.
Northwest swell 18 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 14 feet. Isolated showers through the night.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 12 feet decreasing to 10 feet in the afternoon.
Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 9 feet. Scattered showers.
.FRIDAY...Northeast winds 20 knots. Wind waves 8 to 9 feet. North
swell 7 to 8 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 6 feet. Northwest
swell 6 to 7 feet. Scattered showers.

$$

PHZ111-130145-
Kauai Windward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...West winds 15 knots veering northwest in the afternoon.
Wind waves 4 feet. North swell 9 feet increasing to 13 feet in
the afternoon. Showers likely in the morning, then chance of
showers in the afternoon.
.TONIGHT...North winds 15 knots. Wind waves 4 feet. Northwest
swell 19 feet. Isolated showers in the evening, then scattered
showers after midnight.
.WEDNESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 17 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 15 feet decreasing to 13 feet after midnight.
Isolated showers.
.THURSDAY...Northeast winds 20 knots. Wind waves 8 feet.
Northwest swell 11 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 9 feet. Scattered showers.
.FRIDAY...Northeast winds to 25 knots easing to 15 knots after
midnight. Wind waves 7 to 9 feet. North swell 6 to 8 feet.
Showers likely.
.SATURDAY...East winds 10 knots in the morning becoming variable
less than 10 knots, then becoming east 10 knots in the evening
becoming variable less than 10 knots. Wind waves 6 feet.
Northwest swell 6 feet. Showers likely.

$$

PHZ112-130145-
Kauai Leeward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...West winds 15 knots veering north in the afternoon. Wind
waves 4 feet. Northwest swell 8 feet increasing to 13 feet in the
afternoon. Showers likely in the morning, then chance of showers
in the afternoon.
.TONIGHT...North winds 20 knots. Wind waves 5 feet. Northwest
swell 17 feet increasing to 19 feet after midnight. Isolated
showers in the evening, then scattered showers after midnight.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 17 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 15 feet decreasing to 13 feet after midnight.
Isolated showers after midnight.
.THURSDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 12 feet decreasing to 10 feet in the afternoon.
Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 9 feet. Scattered showers.
.FRIDAY...Northeast winds 20 knots. Wind waves 8 feet. North
swell 6 to 8 feet. Scattered showers.
.SATURDAY...Northeast winds 10 knots becoming variable less than
10 knots. Wind waves 4 feet. Northwest swell 6 to 7 feet.
Scattered showers.

$$

PHZ113-130145-
Kauai Channel-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...West winds 15 knots. Wind waves 4 feet. North swell
8 feet increasing to 11 feet in the afternoon. Showers likely.
.TONIGHT...North winds 20 knots. Wind waves 5 feet. Northwest
swell 16 feet increasing to 18 feet after midnight. Isolated
showers in the evening, then scattered showers after midnight.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 17 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 13 feet. Isolated showers after midnight.
.THURSDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 11 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves
10 feet. Northwest swell 9 feet. Isolated showers.
.FRIDAY...Northeast winds to 25 knots easing to 15 knots after
midnight. Wind waves 8 to 10 feet. North swell 6 to 8 feet.
Scattered showers.
.SATURDAY...East winds 10 knots becoming variable less than
10 knots. Wind waves 5 feet. Northwest swell 5 to 6 feet.
Scattered showers.

$$

PHZ114-130145-
Oahu Windward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...West winds 15 knots. Wind waves 5 feet. North swell
8 feet increasing to 11 feet in the afternoon. Showers likely.
.TONIGHT...North winds 15 knots. Wind waves 4 feet. Northwest
swell 16 feet increasing to 18 feet after midnight. Scattered
showers.
.WEDNESDAY...North winds 20 knots. Wind waves 4 feet. Northwest
swell 17 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 15 feet decreasing to 13 feet after midnight.
Isolated showers in the evening, then scattered showers after
midnight.
.THURSDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 11 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves
10 feet. Northwest swell 10 feet. Scattered showers.
.FRIDAY...Northeast winds 15 knots. Wind waves 8 to 10 feet.
Northwest swell 7 to 9 feet. Showers likely.
.SATURDAY...East winds 10 knots becoming variable less than
10 knots. Wind waves 6 feet. Northwest swell 5 to 6 feet. Showers
likely.

$$

PHZ115-130145-
Oahu Leeward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...West winds 10 knots. Wind waves 2 feet or less then
4 feet in the afternoon. Northwest swell 7 feet increasing to
10 feet in the afternoon. Chance of showers in the morning, then
showers likely in the afternoon.
.TONIGHT...North winds 20 knots. Wind waves 4 feet. Northwest
swell 14 feet increasing to 16 feet after midnight. Scattered
showers.
.WEDNESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 15 feet. Scattered showers in the morning.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
6 feet. Northwest swell 12 feet.
.THURSDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 10 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 8 feet. Scattered showers.
.FRIDAY...Northeast winds 20 knots easing to 10 knots after
midnight. Wind waves 6 to 8 feet. Northwest swell 6 to 8 feet.
Scattered showers.
.SATURDAY...East winds 10 knots in the morning becoming variable
less than 10 knots. Wind waves 3 feet. Northwest swell 5 to
6 feet. Scattered showers.

$$

PHZ116-130145-
Kaiwi Channel-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 15 knots. Wind waves 4 feet. North swell
7 feet increasing to 10 feet in the afternoon. Chance of showers
in the morning, then showers likely in the afternoon.
.TONIGHT...North winds 20 knots. Wind waves 4 feet. Northwest
swell 14 feet increasing to 17 feet after midnight. Scattered
showers in the evening, then showers likely after midnight.
.WEDNESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 17 feet. Scattered showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 15 feet decreasing to 13 feet after midnight.
Isolated showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 11 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves
10 feet. Northwest swell 10 feet. Scattered showers.
.FRIDAY...Northeast winds to 25 knots easing to 10 knots. Wind
waves 6 to 8 feet. North swell 7 to 9 feet. Showers likely.
.SATURDAY...East winds 10 knots in the morning becoming variable
less than 10 knots. Wind waves 5 to 6 feet. Northwest swell 5 to
6 feet. Scattered showers.

$$

PHZ117-130145-
Maui County Windward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS MORNING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 15 knots. Wind waves 4 feet. Northwest
swell 7 feet increasing to north 10 feet in the afternoon. Haze
in the morning. Chance of showers through the day.
.TONIGHT...Northwest winds 15 knots. Wind waves 4 feet. Northwest
swell 14 feet increasing to 17 feet after midnight. Showers
likely.
.WEDNESDAY...North winds 15 knots. Wind waves 5 feet. Northwest
swell 17 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 6 feet.
Northwest swell 14 feet. Isolated showers in the evening, then
scattered showers after midnight.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 11 feet. Scattered showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 10 feet. Scattered showers in the evening, then
showers likely after midnight.
.FRIDAY...East winds 10 knots. Wind waves 6 to 8 feet. Northwest
swell 7 to 9 feet. Showers likely.
.SATURDAY...Winds variable less than 10 knots becoming southeast
10 knots. Wind waves 6 feet. Northwest swell 5 to 7 feet.
Scattered showers.

$$

PHZ118-130145-
Maui County Leeward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 10 knots. Wind waves 2 feet or less then
3 feet in the afternoon. Northwest swell 5 feet. Slight chance of
showers in the morning, then chance of showers in the afternoon.
.TONIGHT...North winds 15 knots. Wind waves 4 feet. Northwest
swell 8 feet increasing to 12 feet after midnight. Showers
likely.
.WEDNESDAY...North winds 20 knots. Wind waves 6 feet. Northwest
swell 13 feet. Scattered showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 10 feet.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 8 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 7 feet. Scattered showers.
.FRIDAY...Northeast winds 10 knots. Wind waves 5 to 7 feet. North
swell 5 to 6 feet. Scattered showers.
.SATURDAY...Winds variable less than 10 knots becoming southeast
10 knots. Wind waves 4 feet. Northwest swell 4 to 5 feet.
Scattered showers.

$$

PHZ119-130145-
Maalaea Bay-
303 AM HST Tue Dec 12 2017

.TODAY...Southwest winds 10 knots. Wind waves 2 feet or less.
Haze in the morning. Chance of showers in the afternoon.
.TONIGHT...West winds 10 knots veering north after midnight. Wind
waves 2 feet or less. Showers likely.
.WEDNESDAY...North winds to 25 knots. Wind waves 2 feet or less
then 3 feet in the afternoon. Scattered showers in the morning.
.WEDNESDAY NIGHT...North winds to 25 knots. Wind waves 2 feet or
less then 3 feet after midnight.
.THURSDAY...North winds to 25 knots. Wind waves 3 feet.
.THURSDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
Scattered showers.
.FRIDAY...North winds 15 knots becoming variable less than
10 knots. Wind waves 2 feet or less. Scattered showers.
.SATURDAY...Winds variable less than 10 knots. Wind waves 2 feet
or less. Scattered showers.

$$

PHZ120-130145-
Pailolo Channel-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 15 knots. Wind waves 3 feet. Northwest
swell 6 feet. Slight chance of showers in the morning, then
chance of showers in the afternoon.
.TONIGHT...North winds 15 knots. Wind waves 4 feet. Northwest
swell 9 feet increasing to 13 feet after midnight. Scattered
showers in the evening, then showers likely after midnight.
.WEDNESDAY...North winds to 25 knots. Wind waves 4 feet.
Northwest swell 13 feet. Scattered showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 5 feet.
Northwest swell 10 feet. Isolated showers after midnight.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 8 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 8 feet. Scattered showers.
.FRIDAY...East winds 10 knots. Wind waves 5 to 7 feet. North
swell 6 to 7 feet. Scattered showers.
.SATURDAY...Winds variable less than 10 knots. Wind waves 5 to
6 feet. North swell 4 to 6 feet. Scattered showers.

$$

PHZ121-130145-
Alenuihaha Channel-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 15 knots. Wind waves 3 feet. Northwest
swell 6 feet. Haze in the morning. Slight chance of showers in
the afternoon.
.TONIGHT...West winds 15 knots veering north after midnight. Wind
waves 4 feet. Northwest swell 11 feet increasing to 14 feet after
midnight. Scattered showers in the evening, then showers likely
after midnight.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 16 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 15 feet decreasing to 13 feet after midnight.
Isolated showers in the evening. Scattered showers after
midnight.
.THURSDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 11 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 10 feet. Scattered showers.
.FRIDAY...East winds 10 knots. Wind waves 4 to 5 feet. North
swell 7 to 9 feet. Haze. Scattered showers.
.SATURDAY...Southeast winds 10 knots becoming variable less than
10 knots. Wind waves 5 to 6 feet. Northwest swell 5 to 7 feet.
Haze. Scattered showers.

$$

PHZ122-130145-
Big Island Windward Waters-
303 AM HST Tue Dec 12 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
FRIDAY MORNING...

.TODAY...Southwest winds 10 knots. Wind waves 3 feet. Northwest
swell 7 feet increasing to 9 feet in the afternoon. Haze. Slight
chance of showers.
.TONIGHT...South winds 10 knots veering north after midnight.
Wind waves 4 feet. Northwest swell 11 feet increasing to 15 feet
after midnight. Haze in the evening. Scattered showers in the
evening, then isolated showers after midnight.
.WEDNESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 17 feet. Showers likely in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...North winds 20 knots. Wind waves 6 feet.
Northwest swell 14 feet. Scattered showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 11 feet. Scattered showers.
.THURSDAY NIGHT...North winds 20 knots. Wind waves 7 feet.
Northwest swell 10 feet. Scattered showers in the evening, then
showers likely after midnight.
.FRIDAY...North winds 20 knots easing to 10 knots in the
afternoon, then becoming variable less than 10 knots. Wind waves
4 feet. Northwest swell 7 to 9 feet. Haze. Showers likely.
.SATURDAY...Winds variable less than 10 knots becoming southeast
10 knots in the afternoon and evening, then becoming variable
less than 10 knots after midnight. Wind waves 5 to 6 feet.
Northwest swell 5 to 7 feet. Haze. Scattered showers.

$$

PHZ123-130145-
Big Island Leeward Waters-
303 AM HST Tue Dec 12 2017

.TODAY...Winds variable less than 10 knots becoming west 10 knots
in the afternoon. Wind waves 2 feet or less then 3 feet in the
afternoon. Northwest swell 4 feet. Haze in the morning.
.TONIGHT...North winds 10 knots. Wind waves 3 feet. Northwest
swell 5 feet increasing to 7 feet after midnight. Isolated
showers.
.WEDNESDAY...West of the Big Island, northeast winds 20 knots
veering east in the afternoon. Near South Point, winds variable
less than 10 knots. Wind waves 6 feet. Northwest swell 10 feet.
Isolated showers through the day.
.WEDNESDAY NIGHT...Northeast winds 15 knots west of the Big
Island...northeast 10 knots near South Point. Wind waves 6 feet.
Northwest swell 10 feet. Isolated showers through the night.
.THURSDAY...Northeast winds 20 knots west of the Big Island...
east 10 knots near South Point. Wind waves 8 feet. Northwest
swell 8 feet. Isolated showers.
.THURSDAY NIGHT...Northeast winds 20 knots west of the Big
Island...northeast 10 knots near South Point. Wind waves 8 feet.
Northwest swell 7 feet. Haze. Scattered showers.
.FRIDAY...West of the Big Island, north winds 10 knots becoming
variable less than 10 knots, then becoming southeast 10 knots
after midnight. Near South Point, winds variable less than
10 knots. Wind waves 4 feet. North swell 5 to 7 feet. Haze.
Scattered showers.
.SATURDAY...South winds 10 knots becoming variable less than
10 knots, then becoming southeast 10 knots after midnight. Wind
waves 5 feet. Northwest swell 4 feet. Haze. Scattered showers.

$$

PHZ124-130145-
Big Island Southeast Waters-
303 AM HST Tue Dec 12 2017

.TODAY...Winds variable less than 10 knots becoming west 10 knots
in the afternoon. Wind waves 2 feet or less then 3 feet in the
afternoon. Northwest swell 5 feet. Slight chance of showers.
.TONIGHT...Northwest winds 10 knots veering north after midnight.
Wind waves 3 feet. Northwest swell 7 feet. Isolated showers.
.WEDNESDAY...Northeast winds 10 knots rising to 20 knots in the
afternoon. Wind waves 5 feet. Northwest swell 11 feet. Haze.
Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 10 feet. Haze. Isolated showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 8 feet. Haze. Isolated showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 7 feet. Haze. Scattered showers.
.FRIDAY...North winds 20 knots becoming west 10 knots in the
afternoon, then becoming variable less than 10 knots. Wind waves
4 feet. North swell 6 to 7 feet. Haze. Scattered showers.
.SATURDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 5 feet. North swell 4 to
6 feet. Haze. Scattered showers.

$$



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