460 
FZHW50 PHFO 171335
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
335 AM HST Fri Dec 17 2021

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

PHZ100-180245-
335 AM HST Fri Dec 17 2021

.Synopsis for Hawaiian coastal waters...
A strong high will build in north of the state today will increase 
trade wind speeds starting today and then become moderate to 
strong over the weekend and into early next week. Expect isolated
thunderstorms over eastern waters through tonight. 

$$

PHZ110-180245-
Kauai Northwest Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
5 feet. Swell northeast 3 feet. Isolated showers through the day.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Northwest
swell 6 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 6 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 5 feet. Swell northeast 3 feet. Scattered
showers. 
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
4 feet and north 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet and north 5 to 6 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 to 4 feet and north 6 to 8 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 3 feet and northeast 8 to 9 feet. Scattered showers.  

$$

PHZ111-180245-
Kauai Windward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
5 feet. Swell northeast 3 feet. Isolated showers. 
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 6 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 6 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Swell northeast 3 feet. Scattered
showers. 
.SUNDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet and north 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet and north 5 to 6 feet. Scattered showers
in the evening, then showers likely after midnight. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. North swell
3 to 4 feet and north 6 to 8 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 3 feet and northeast 8 to 9 feet. Scattered showers.  

$$

PHZ112-180245-
Kauai Leeward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 10 knots. Wind waves 3 feet. Northwest swell
5 feet. Isolated showers in the morning. 
.TONIGHT...East winds 10 knots. Wind waves 3 feet. Northwest
swell 5 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 5 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers. 
.SUNDAY...East winds 15 knots rising to to 25 knots in the
afternoon. Wind waves 7 feet. Northwest swell 4 feet and north
3 to 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet and north 5 feet. Scattered showers. 
.MONDAY...East winds 15 knots rising to to 25 knots. Wind waves
7 to 8 feet. Northwest swell 3 to 4 feet and north 6 to 8 feet.
Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 feet and northeast 7 to 8 feet. Scattered showers.  

$$

PHZ113-180245-
Kauai Channel-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 10 knots. Wind waves 4 feet. Northwest swell
4 feet. Swell northeast 3 feet. Isolated showers in the morning. 
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Northwest
swell 5 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers. 
.SUNDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet and north 3 to 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet and north 5 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 to 4 feet and north 5 to 7 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 10 feet. Swell
northeast 7 to 8 feet. Scattered showers.  

$$

PHZ114-180245-
Oahu Windward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
4 feet and northeast 3 feet. Isolated showers. 
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 5 feet. Swell northeast 3 feet. Scattered
showers. 
.SUNDAY...East winds 20 knots. Wind waves 9 feet. Northwest swell
4 feet and north 3 to 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet and north 5 to 6 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 to 4 feet and north 6 to 8 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 3 feet and north 7 to 8 feet. Scattered showers.  

$$

PHZ115-180245-
Oahu Leeward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 10 knots. Wind waves 3 feet. Northwest swell
3 feet. Isolated showers in the morning. 
.TONIGHT...East winds 10 knots. Wind waves 3 feet. Northwest
swell 4 feet. Isolated showers. 
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 4 feet. Isolated showers in the morning, then scattered
showers in the afternoon. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers. 
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 feet. Swell north 3 feet. Scattered showers. 
.SUNDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 3 feet and north 4 feet. Scattered showers. 
.MONDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
3 feet and north 4 to 6 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Swell north
6 to 7 feet. Scattered showers.  

$$

PHZ116-180245-
Kaiwi Channel-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
4 feet and north 3 feet. Slight chance of thunderstorms in the
morning. Isolated showers through the day. 
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 5 feet. Scattered showers. 
.SUNDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet and north 3 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet and north 4 to 5 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 to 4 feet and north 5 to 7 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 feet and north 7 to 8 feet. Scattered showers.  

$$

PHZ117-180245-
Maui County Windward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
4 feet and north 3 feet. Scattered showers in the morning. Slight
chance of thunderstorms through the day. Isolated showers in the
afternoon. 
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 5 feet. Swell northeast 3 feet. Isolated showers in the
evening, then scattered showers after midnight. 
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet. Scattered showers. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 5 feet. Scattered showers. 
.SUNDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet and north 3 to 4 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet and north 5 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 to 4 feet and north 5 to 7 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 feet and north 7 to 8 feet. Scattered showers.  

$$

PHZ118-180245-
Maui County Leeward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 10 knots. Wind waves 3 feet. Northwest swell
3 feet in the afternoon. Swell north 3 feet. Isolated showers in
the morning. 
.TONIGHT...East winds 15 knots. Wind waves 3 feet. Northwest
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...Northeast winds 10 knots. Wind waves 4 feet.
Northwest swell 3 feet. Scattered showers. 
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet. Scattered showers. 
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 feet. Swell north 3 feet. Scattered showers. 
.SUNDAY NIGHT...Northeast winds 20 knots. Wind waves 8 feet.
Northwest swell 3 feet and north 4 feet. Scattered showers. 
.MONDAY...East winds 20 knots. Wind waves 6 to 7 feet. Northwest
swell 3 feet and north 4 to 6 feet. Scattered showers. 
.TUESDAY...Northeast winds 20 knots. Wind waves 6 to 7 feet.
Swell north 6 to 7 feet. Scattered showers.  

$$

PHZ119-180245-
Maalaea Bay-
335 AM HST Fri Dec 17 2021

.TODAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. Isolated showers through the day. 
.TONIGHT...Winds variable less than 10 knots. Wind waves 2 feet
or less. Isolated showers after midnight. 
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less.
Isolated showers through the day. 
.SATURDAY NIGHT...Northeast winds 15 knots becoming north to
25 knots after midnight. Wind waves 3 feet. Isolated showers
through the night. 
.SUNDAY...North winds to 25 knots. Wind waves 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon. 
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves 5 feet.
Scattered showers. 
.MONDAY...North winds to 25 knots. Wind waves 3 feet. Scattered
showers. 
.TUESDAY...North winds to 25 knots. Wind waves 3 feet. Isolated
showers.  

$$

PHZ120-180245-
Pailolo Channel-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 10 knots. Wind waves 4 feet. Northwest swell
3 feet in the afternoon. Swell northeast 3 feet. Isolated
showers. 
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight. 
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers. 
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers. 
.SUNDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Swell northeast 3 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet in the evening. Swell northeast 4 to
5 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 8 feet. Swell
northeast 5 to 6 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 7 to 8 feet. Swell
northeast 6 to 8 feet. Scattered showers.  

$$

PHZ121-180245-
Alenuihaha Channel-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Mixed swell
northwest 3 feet and northeast 3 feet. Isolated showers in the
morning. Scattered heavy showers and slight chance of
thunderstorms in the afternoon. 
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 4 feet. Swell northeast 3 feet. Isolated showers in the
evening, then scattered showers after midnight. 
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 5 feet. Scattered showers. 
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Scattered showers. 
.SUNDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet. Swell northeast 3 feet. Scattered showers. 
.SUNDAY NIGHT...East winds to 25 knots. Wind waves 11 feet. Mixed
swell northwest 3 feet and northeast 4 feet. Scattered showers. 
.MONDAY...East winds to 25 knots. Wind waves 8 feet. Mixed swell
northwest 3 feet and northeast 4 to 6 feet. Scattered showers. 
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Swell
northeast 6 to 8 feet. Scattered showers.  

$$

PHZ122-180245-
Big Island Windward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
3 feet and north 3 to 4 feet. Scattered heavy showers and slight
chance of thunderstorms. 
.TONIGHT...Southeast winds 20 knots. Wind waves 5 feet. Northwest
swell 4 feet and north 3 feet. Isolated showers and thunderstorms
in the evening, then showers likely after midnight. 
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 5 feet. Swell northeast 3 feet. Showers likely. 
.SATURDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Mixed
swell northwest 5 feet and northeast 3 feet. Showers likely in
the evening, then occasional showers after midnight. 
.SUNDAY...East winds 20 knots. Wind waves 9 feet. Northwest swell
4 feet and north 4 feet. Occasional showers. 
.SUNDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet and north 4 to 5 feet. Occasional showers in the
evening, then scattered showers after midnight. 
.MONDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet and north 5 to 7 feet. Scattered showers. 
.TUESDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 3 feet and north 7 to 8 feet. Scattered showers.  

$$

PHZ123-180245-
Big Island Leeward Waters-
335 AM HST Fri Dec 17 2021

.TODAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 feet. Swell
north 3 feet increasing to northwest 3 feet in the afternoon.
Isolated showers in the morning, then scattered heavy showers and
slight chance of thunderstorms in the afternoon. 
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers. 
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet.
Northwest swell 4 feet. Isolated showers in the morning, then
scattered showers in the afternoon. 
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
7 feet. Northwest swell 4 feet. Scattered showers in the evening,
then isolated showers after midnight. 
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 11 feet.
Northwest swell 3 feet. Isolated showers in the morning, then
scattered showers in the afternoon. 
.SUNDAY NIGHT...West of the Big Island, southeast winds 10 knots
in the evening becoming variable less than 10 knots. Near South
Point, east winds to 25 knots. Wind waves 11 feet. Northwest
swell 3 feet and north 3 feet. Scattered showers. 
.MONDAY...West of the Big Island, winds variable less than
10 knots becoming northwest 10 knots after midnight. Near South
Point, east winds to 25 knots. Wind waves 8 feet. Northwest swell
3 feet and north 3 to 5 feet. Scattered showers. 
.TUESDAY...West of the Big Island, southeast winds 10 knots in
the morning becoming variable less than 10 knots. Near South
Point, east winds 20 knots. Wind waves 7 to 8 feet. Swell north
5 to 6 feet. Scattered showers.  

$$

PHZ124-180245-
Big Island Southeast Waters-
335 AM HST Fri Dec 17 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Swell northeast
3 to 4 feet. Scattered heavy showers through the day. Slight
chance of thunderstorms in the afternoon. 
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Mixed swell
northwest 3 feet and northeast 3 feet. Isolated showers and
thunderstorms in the evening, then showers likely after midnight.
.SATURDAY...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Swell northeast 3 feet. Showers likely. 
.SATURDAY NIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Mixed swell northwest 4 feet and northeast 3 feet. Showers
likely. 
.SUNDAY...Northeast winds to 25 knots. Wind waves 11 feet. Mixed
swell northwest 3 feet and northeast 3 to 4 feet. Showers likely.
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves 11 feet.
Mixed swell northwest 3 feet and northeast 4 to 5 feet. Showers
likely in the evening, then scattered showers after midnight. 
.MONDAY...Northeast winds to 25 knots. Wind waves 8 feet. Mixed
swell northwest 3 feet and northeast 5 to 6 feet. Scattered
showers. 
.TUESDAY...Northeast winds to 25 knots. Wind waves 7 to 8 feet.
Swell northeast 6 to 7 feet. Scattered showers.  

$$