Coastal Waters Forecast
Issued by NWS Honolulu, HI

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000
FZHW50 PHFO 201930
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
930 AM HST Tue Feb 20 2018

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

PHZ100-210815-
930 AM HST Tue Feb 20 2018

.Synopsis for Hawaiian coastal waters...
Surface high pressure far northeast of the region will bring east
to southeast winds over most waters. Winds will strengthen later
in the week. Increasing showers are likely during the second half
of the week.

$$

PHZ110-210815-
Kauai Northwest Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 5 feet and east
5 feet.
.TONIGHT...Winds variable less than 10 knots, becoming east
10 knots after midnight. Wind waves around 2 feet or less. Mixed
swell northwest 7 feet and east 5 feet. Hazy in the evening.
Isolated showers.
.WEDNESDAY...East winds 10 knots. Wind waves around 2 feet or
less, then around 3 feet in the afternoon. Mixed swell northwest
7 feet and east 5 feet. Isolated showers. Hazy in the afternoon.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 6 feet and east 5 feet. Hazy. Scattered
showers.
.THURSDAY...East winds 10 knots. Wind waves around 4 feet. Mixed
swell west 6 feet and east 4 feet. Hazy. Scattered showers.
.THURSDAY NIGHT...Southeast winds 10 knots. Wind waves around
5 feet. Mixed swell northwest 6 feet and east 4 to 5 feet. Hazy.
Scattered showers in the evening. Isolated thunderstorms. Showers
likely after midnight.
.FRIDAY...Southeast winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 4 to 6 feet and east 5 to 6 feet. Hazy.
Showers likely with isolated thunderstorms.
.SATURDAY...Southeast winds 10 knots, increasing to 20 knots
after midnight. Wind waves 4 to 5 feet. Mixed swell northwest
3 to 4 feet and east 6 feet. Hazy. Showers likely with isolated
thunderstorms.

$$

PHZ111-210815-
Kauai Windward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 5 feet and east
5 feet.
.TONIGHT...Winds variable less than 10 knots, becoming southeast
10 knots after midnight. Wind waves around 3 feet. Mixed swell
northwest 5 feet and east 5 feet. Isolated showers.
.WEDNESDAY...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 7 feet and east 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 6 feet and east 5 feet. Scattered showers.
.THURSDAY...Southeast winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 6 feet and east 4 feet. Scattered showers.
.THURSDAY NIGHT...Southeast winds 15 knots. Wind waves around
5 feet. Mixed swell northwest 6 feet and east 4 to 5 feet.
Scattered showers in the evening, then showers likely after
midnight.
.FRIDAY...Southeast winds 15 knots. Wind waves around 5 feet.
Mixed swell northwest 4 to 6 feet and east 5 to 6 feet. Showers
likely with isolated thunderstorms.
.SATURDAY...Southeast winds 15 knots. Wind waves 5 to 6 feet.
Mixed swell northwest 3 to 4 feet and east 6 feet. Showers likely
with isolated thunderstorms.

$$

PHZ112-210815-
Kauai Leeward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 5 feet and east 3 to
4 feet.
.TONIGHT...Winds variable less than 10 knots, becoming east
10 knots after midnight. Wind waves around 2 feet or less. Mixed
swell northwest 6 feet and east 4 feet. Hazy in the evening.
Isolated showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 2 feet
or less. Mixed swell northwest 7 feet and east 4 feet. Isolated
showers. Hazy in the afternoon.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves around 2 feet
or less, then around 3 feet after midnight. Northwest swell
7 feet and east 3 feet. Hazy. Scattered showers.
.THURSDAY...East winds 10 knots. Wind waves around 3 feet.
Northwest swell 7 feet and east 3 feet. Hazy. Scattered showers
in the morning. Showers likely in the afternoon.
.THURSDAY NIGHT...Southeast winds 15 knots. Wind waves around
4 feet. Northwest swell 7 feet and east 3 feet. Hazy. Showers
likely. Isolated thunderstorms after midnight.
.FRIDAY...Southeast winds 15 knots. Wind waves around 4 feet.
Mixed swell northwest 5 to 7 feet and east 3 to 4 feet. Hazy.
Showers likely with isolated thunderstorms.
.SATURDAY...East winds 10 knots. Wind waves around 4 feet. Mixed
swell northwest 3 to 4 feet and east 4 feet. Hazy. Showers likely
with isolated thunderstorms.

$$

PHZ113-210815-
Kauai Channel-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 4 feet and east
5 feet.
.TONIGHT...Winds variable less than 10 knots, becoming east
10 knots after midnight. Wind waves around 3 feet. Mixed swell
northwest 5 feet and east 5 feet. Hazy in the evening. Isolated
showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 6 feet and east 5 feet. Isolated showers.
Hazy in the afternoon.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 6 feet and east 4 to 5 feet. Hazy.
Scattered showers.
.THURSDAY...Southeast winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 6 feet and east 4 feet. Hazy. Scattered
showers.
.THURSDAY NIGHT...Southeast winds 10 knots. Wind waves around
4 feet. Mixed swell northwest 6 feet and east 4 to 5 feet. Hazy.
Scattered showers in the evening. Showers likely after midnight.
.FRIDAY...Southeast winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 4 to 6 feet and east 5 to 6 feet. Hazy.
Scattered showers with isolated thunderstorms.
.SATURDAY...East winds 10 knots. Wind waves 4 to 5 feet. Mixed
swell northwest 3 to 4 feet and east 5 to 6 feet. Hazy. Scattered
showers with isolated thunderstorms.

$$

PHZ114-210815-
Oahu Windward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...East winds 10 knots late this morning, becoming
variable less than 10 knots. Wind waves around 3 feet. Mixed
swell northwest 4 feet and east 6 feet.
.TONIGHT...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 5 feet and east 6 feet. Isolated showers.
.WEDNESDAY...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 6 feet and east 5 to 6 feet. Isolated showers in
the morning, then scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves around 4 feet.
Mixed swell northwest 6 feet and east 5 feet. Scattered showers.
.THURSDAY...Southeast winds 15 knots. Wind waves around 5 feet.
Mixed swell northwest 6 feet and east 4 to 5 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves around 6 feet.
Mixed swell northwest 6 feet and east 5 feet. Scattered showers
in the evening, then showers likely after midnight.
.FRIDAY...Southeast winds 20 knots. Wind waves 5 to 6 feet. Mixed
swell northwest 4 to 6 feet and east 5 to 6 feet. Scattered
showers.
.SATURDAY...East winds 20 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 to 4 feet and east 6 feet. Showers likely.

$$

PHZ115-210815-
Oahu Leeward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 4 feet and east
4 feet.
.TONIGHT...Northeast winds 10 knots. Wind waves around 2 feet or
less. Mixed swell northwest 4 feet and east 4 feet. Isolated
showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 2 feet
or less. Mixed swell northwest 4 feet and east 3 to 4 feet.
Isolated showers.
.WEDNESDAY NIGHT...East winds 10 knots in the evening, becoming
variable less than 10 knots. Wind waves around 2 feet or less,
then around 3 feet after midnight. Mixed swell northwest 4 feet
and east 3 feet. Scattered showers.
.THURSDAY...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 4 feet and east 3 feet. Scattered showers.
.THURSDAY NIGHT...Winds variable less than 10 knots. Wind waves
around 4 feet. Mixed swell northwest 4 feet and northeast 3 to
4 feet. Scattered showers.
.FRIDAY...Winds variable less than 10 knots, becoming southeast
10 knots in the afternoon, then becoming variable less than
10 knots in the evening, becoming southeast 10 knots after
midnight. Wind waves around 4 feet. Mixed swell northwest 3 to
4 feet and east 4 feet. Scattered showers.
.SATURDAY...East winds 10 knots in the morning, becoming variable
less than 10 knots, then becoming east 10 knots. Wind waves
around 4 feet. Mixed swell northwest 3 feet and east 4 feet.
Scattered showers.

$$

PHZ116-210815-
Kaiwi Channel-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 3 feet. Mixed swell northwest 4 feet and east 6 feet.
.TONIGHT...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 4 feet and east 5 to 6 feet. Isolated
showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 6 feet and east 5 feet. Isolated showers in
the morning, then scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves around 4 feet.
Mixed swell northwest 6 feet and east 4 to 5 feet. Scattered
showers.
.THURSDAY...East winds 15 knots. Wind waves around 5 feet. Mixed
swell northwest 6 feet and east 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves around 6 feet.
Mixed swell northwest 6 feet and east 5 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 5 to 6 feet. Mixed
swell northwest 4 to 6 feet and east 5 to 6 feet. Scattered
showers.
.SATURDAY...East winds 20 knots. Wind waves around 6 feet. Mixed
swell northwest 3 to 4 feet and east 6 feet. Scattered showers.

$$

PHZ117-210815-
Maui County Windward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...East winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 5 feet and east 6 feet. Isolated showers
late this morning. Hazy.
.TONIGHT...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 4 feet and east 6 feet. Isolated showers.
.WEDNESDAY...East winds 10 knots. Wind waves around 4 feet. Mixed
swell northwest 6 feet and east 5 feet. Isolated showers in the
morning, then scattered showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves around 5 feet.
Mixed swell northwest 6 feet and east 4 to 5 feet. Scattered
showers in the evening, then showers likely after midnight.
.THURSDAY...Southeast winds 20 knots. Wind waves around 5 feet.
Mixed swell northwest 6 feet and east 4 feet. Showers likely.
.THURSDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Mixed swell northwest 6 feet and east 5 to 6 feet. Showers
likely.
.FRIDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 4 to 6 feet and east 6 feet. Showers likely.
.SATURDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 to 4 feet and east 6 to 7 feet. Showers likely.

$$

PHZ118-210815-
Maui County Leeward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Mixed swell northwest 3 feet and east
4 feet. Hazy this afternoon.
.TONIGHT...Northeast winds 10 knots. Wind waves around 2 feet or
less. Mixed swell northwest 3 feet and east 4 feet. Isolated
showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 2 feet
or less. Mixed swell northwest 4 feet and east 4 feet. Isolated
showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots. Wind waves
around 2 feet or less, then around 3 feet after midnight. Mixed
swell northwest 4 feet and east 3 feet. Isolated showers in the
evening, then scattered showers after midnight.
.THURSDAY...Winds variable less than 10 knots, becoming northeast
10 knots in the afternoon. Wind waves around 3 feet. Mixed swell
northwest 4 feet and east 3 feet. Scattered showers.
.THURSDAY NIGHT...East winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 5 feet and east 3 to 4 feet. Scattered
showers.
.FRIDAY...East winds 10 knots. Wind waves 3 to 4 feet. Mixed
swell northwest 3 to 5 feet and east 4 to 5 feet. Scattered
showers.
.SATURDAY...East winds 10 knots, becoming north in the afternoon,
then becoming east. Wind waves 4 to 6 feet. Mixed swell northwest
3 feet and east 4 to 5 feet. Scattered showers.

$$

PHZ119-210815-
Maalaea Bay-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less.
.TONIGHT...Winds variable less than 10 knots. Wind waves around
2 feet or less.
.WEDNESDAY...Winds variable less than 10 knots. Wind waves around
2 feet or less. Isolated showers in the afternoon.
.WEDNESDAY NIGHT...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Isolated showers.
.THURSDAY...Winds variable less than 10 knots. Wind waves around
2 feet or less. Isolated showers in the morning, then scattered
showers in the afternoon.
.THURSDAY NIGHT...Winds variable less than 10 knots. Wind waves
around 2 feet or less. Scattered showers.
.FRIDAY...Winds variable less than 10 knots. Wind waves around
2 feet or less. Scattered showers.
.SATURDAY...Winds variable less than 10 knots, becoming northeast
10 knots after midnight. Wind waves around 2 feet or less.
Scattered showers.

$$

PHZ120-210815-
Pailolo Channel-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
around 2 feet or less, then around 3 feet this afternoon. Mixed
swell northwest 3 feet and east 5 feet.
.TONIGHT...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 3 feet and east 5 feet. Isolated showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 3 feet and east 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 3 feet and east 4 feet. Isolated showers in
the evening, then scattered showers after midnight.
.THURSDAY...Northeast winds 10 knots. Wind waves around 4 feet.
Mixed swell northwest 3 feet and east 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves around 5 feet.
Mixed swell northwest 3 feet and east 5 feet. Scattered showers.
.FRIDAY...Northeast winds 10 knots. Wind waves 4 to 5 feet. Mixed
swell northwest 3 feet and east 5 to 6 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 5 to 6 feet. Swell
east 6 feet. Scattered showers.

$$

PHZ121-210815-
Alenuihaha Channel-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...East winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 4 feet and east 5 feet. Isolated showers
late this morning. Hazy.
.TONIGHT...Northeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 4 feet and east 5 feet. Isolated showers.
.WEDNESDAY...Northeast winds 15 knots. Wind waves around 4 feet.
Mixed swell northwest 5 feet and east 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves around 5 feet.
Mixed swell northwest 5 feet and east 4 feet. Isolated showers in
the evening. Scattered showers after midnight.
.THURSDAY...East winds 20 knots. Wind waves around 6 feet. Mixed
swell northwest 5 feet and east 4 feet. Scattered showers, mainly
in the morning.
.THURSDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Mixed swell northwest 5 feet and east 5 to 6 feet. Isolated
showers in the evening, then scattered showers after midnight.
.FRIDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 4 to 5 feet and east 6 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 to 4 feet and east 6 to 7 feet. Scattered
showers.

$$

PHZ122-210815-
Big Island Windward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...East winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 5 feet and east 5 feet. Scattered showers
late this morning. Hazy.
.TONIGHT...Southeast winds 10 knots. Wind waves around 3 feet.
Mixed swell northwest 4 feet and east 5 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves around 4 feet. Mixed
swell northwest 5 feet and east 5 feet. Scattered showers.
.WEDNESDAY NIGHT...Southeast winds 20 knots. Wind waves around
5 feet. Mixed swell northwest 6 feet and east 4 feet. Showers
likely.
.THURSDAY...Southeast winds 20 knots. Wind waves around 5 feet.
Mixed swell northwest 6 feet and east 4 feet. Showers likely.
.THURSDAY NIGHT...Southeast winds to 25 knots. Wind waves around
6 feet. Mixed swell northwest 6 feet and east 5 to 6 feet.
Showers likely.
.FRIDAY...East winds to 25 knots. Wind waves around 6 feet. Mixed
swell northwest 4 to 6 feet and east 6 feet. Showers likely.
.SATURDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 to 4 feet and east 6 to 7 feet. Showers likely.

$$

PHZ123-210815-
Big Island Leeward Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...Winds variable less than 10 knots west of the
Big Island...east 15 knots near South Point. Wind waves around
3 feet. Mixed swell northwest 4 feet and east 4 feet. Hazy.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east 10 knots near South Point. Wind waves around
3 feet. Mixed swell northwest 4 feet and east 4 feet. Hazy in the
evening. Isolated showers.
.WEDNESDAY...West of the Big Island, winds variable less than
10 knots, becoming west 10 knots in the afternoon. Near South
Point, east winds 15 knots. Wind waves around 4 feet. Mixed swell
northwest 4 feet and east 4 feet. Isolated showers in the
morning, then scattered showers in the afternoon. Hazy in the
afternoon.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 15 knots near South Point. Wind waves around
5 feet. Mixed swell northwest 5 feet and east 4 feet. Hazy.
Showers likely.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves around
6 feet. Mixed swell west 5 feet and east 4 feet. Hazy. Showers
likely.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves around
6 feet. Mixed swell west 5 feet and northeast 4 to 5 feet. Hazy.
Showers likely in the evening. Scattered showers after midnight.
.FRIDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 5 to
6 feet. Mixed swell west 4 to 5 feet and east 5 to 6 feet. Hazy.
Showers likely.
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 6 to
8 feet. Mixed swell west 3 to 4 feet and east 6 feet. Hazy.
Scattered showers.

$$

PHZ124-210815-
Big Island Southeast Waters-
930 AM HST Tue Feb 20 2018

.REST OF TODAY...East winds 15 knots. Wind waves around 3 feet.
Mixed swell northwest 4 feet and east 4 feet. Scattered showers
late this morning.
.TONIGHT...East winds 10 knots. Wind waves around 3 feet. Mixed
swell northwest 4 feet and east 4 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves around 4 feet. Mixed
swell northwest 4 feet and east 4 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves around 4 feet.
Mixed swell northwest 5 feet and east 4 feet. Showers likely.
.THURSDAY...East winds 20 knots. Wind waves around 5 feet. Mixed
swell northwest 5 feet and east 4 feet. Showers likely.
.THURSDAY NIGHT...East winds 20 knots. Wind waves around 5 feet.
Mixed swell northwest 5 feet and east 5 to 6 feet. Showers
likely.
.FRIDAY...East winds 20 knots. Wind waves around 5 feet. Mixed
swell northwest 4 to 5 feet and east 6 feet. Showers likely.
.SATURDAY...East winds to 25 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 to 4 feet and east 6 to 7 feet. Showers likely.

$$


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