Coastal Waters Forecast
Issued by NWS Honolulu, HI

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FZHW50 PHFO 211331
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
331 AM HST Fri Jul 21 2017

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

PHZ100-220200-
331 AM HST Fri Jul 21 2017

.Synopsis for Hawaiian coastal waters...
Surface high pressure far north of the state will maintain
moderate to locally strong trade winds through tonight. The
trade winds are expected to become weaker this weekend as the
remnants of Tropical Cyclone Fernanda approach the area. East
swells from Fernanda will continue to spread across most of
the coastal waters into early next week.

$$

PHZ110-220200-
Kauai Northwest Waters-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 5 feet. East swell
5 feet. Isolated showers through the day.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Isolated showers in the evening, then scattered showers
after midnight.
.SATURDAY...East winds 15 knots. Wind waves 3 feet. East swell
4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 4 to
5 feet. Scattered showers.
.TUESDAY...East winds 10 knots. Wind waves 4 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ111-220200-
Kauai Windward Waters-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Isolated showers.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Isolated showers in the evening, then scattered showers
after midnight.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 3 to
5 feet. Scattered showers.
.TUESDAY...East winds 10 knots rising to 20 knots after midnight.
Wind waves 4 feet. East swell 3 feet. Scattered showers.

$$

PHZ112-220200-
Kauai Leeward Waters-
331 AM HST Fri Jul 21 2017

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

$$

PHZ113-220200-
Kauai Channel-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 5 feet. East swell
5 feet. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. East swell
5 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 3 to
5 feet. Scattered showers.
.TUESDAY...East winds 10 knots rising to 20 knots after midnight.
Wind waves 4 feet. East swell 3 feet. Isolated showers.

$$

PHZ114-220200-
Oahu Windward Waters-
331 AM HST Fri Jul 21 2017

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

$$

PHZ115-220200-
Oahu Leeward Waters-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 6 feet. East swell
3 feet. Isolated showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. East swell
4 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 10 knots. Wind waves 3 feet in the morning
then 2 feet or less. East swell 5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
East swell 6 feet. Scattered showers.
.MONDAY...East winds 10 knots in the morning becoming variable
less than 10 knots, then becoming east 10 knots. Wind waves
2 feet or less. East swell 3 to 5 feet. Scattered showers.
.TUESDAY...East winds 10 knots. Wind waves 3 feet. Isolated
showers.

$$

PHZ116-220200-
Kaiwi Channel-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 6 feet. East swell
5 feet. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. East swell
5 feet. Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. East swell
5 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 3 to
5 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet. Isolated showers.

$$

PHZ117-220200-
Maui County Windward Waters-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 5 feet. East swell
6 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 4 feet. East swell
6 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. East swell
6 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less
then 3 feet after midnight. East swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 3 to
5 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet. Scattered showers.

$$

PHZ118-220200-
Maui County Leeward Waters-
331 AM HST Fri Jul 21 2017

.TODAY...East winds 20 knots. Wind waves 5 feet. East swell
4 feet. Isolated showers through the day.
.TONIGHT...Northeast winds 15 knots. Wind waves 4 feet. East
swell 4 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. East swell
4 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.SATURDAY NIGHT...East winds 10 knots. Wind waves 3 feet. East
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.SUNDAY...Northeast winds 10 knots veering southeast in the
afternoon. Wind waves 3 feet in the morning then 2 feet or less.
East swell 4 feet. Scattered showers.
.SUNDAY NIGHT...Winds variable less than 10 knots becoming
northeast 10 knots after midnight. Wind waves 2 feet or less.
East swell 3 feet. Scattered showers.
.MONDAY...East winds 10 knots in the morning becoming variable
less than 10 knots, then becoming east 10 knots after midnight.
Wind waves 2 feet or less. East swell 3 feet. Haze. Scattered
showers.
.TUESDAY...East winds 10 knots. Wind waves 3 feet. Isolated
showers.

$$

PHZ119-220200-
Maalaea Bay-
331 AM HST Fri Jul 21 2017

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

.TODAY...North winds to 25 knots. Wind waves 3 feet. Isolated
showers in the afternoon.
.TONIGHT...North winds to 25 knots. Wind waves 2 feet or less.
Isolated showers in the evening.
.SATURDAY...North winds to 25 knots. Wind waves 2 feet or less.
Isolated showers in the afternoon.
.SATURDAY NIGHT...North winds to 25 knots. Wind waves 2 feet or
less.
.SUNDAY...Northeast winds 20 knots. Wind waves 2 feet or less.
Isolated showers.
.SUNDAY NIGHT...North winds 15 knots. Wind waves 2 feet or less.
Isolated showers.
.MONDAY...North winds 15 knots in the morning becoming variable
less than 10 knots. Wind waves 2 feet or less. Isolated showers.
.TUESDAY...East winds 10 knots becoming northeast 20 knots. Wind
waves 2 feet or less.

$$

PHZ120-220200-
Pailolo Channel-
331 AM HST Fri Jul 21 2017

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

.TODAY...East winds to 25 knots. Wind waves 5 feet. East swell
5 feet. Isolated showers through the day.
.TONIGHT...East winds to 25 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers through the night.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers through the day.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 4 feet. East
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 3 feet in the morning
then 2 feet or less. East swell 5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less.
East swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell 3 to
5 feet. Scattered showers.
.TUESDAY...East winds 15 knots rising to to 25 knots after
midnight. Wind waves 4 feet. East swell 3 feet. Scattered
showers.

$$

PHZ121-220200-
Alenuihaha Channel-
331 AM HST Fri Jul 21 2017

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

.TODAY...East winds to 25 knots. Wind waves 8 feet. East swell
5 feet. Isolated showers through the day.
.TONIGHT...East winds to 25 knots. Wind waves 6 feet. East swell
6 feet. Isolated showers through the night.
.SATURDAY...East winds 20 knots. Wind waves 5 feet. East swell
6 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SUNDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers in the evening, then isolated
showers after midnight.
.MONDAY...East winds 10 knots rising to 20 knots after midnight.
Wind waves 3 to 4 feet. East swell 3 to 4 feet. Haze. Scattered
showers.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 feet. Isolated showers.

$$

PHZ122-220200-
Big Island Windward Waters-
331 AM HST Fri Jul 21 2017

.TODAY...Northeast winds 20 knots. Wind waves 4 feet. East swell
6 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 3 feet. East swell
6 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 3 feet. East swell
6 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 3 feet in the morning
then 2 feet or less. East swell 5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
East swell 5 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. East swell
3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ123-220200-
Big Island Leeward Waters-
331 AM HST Fri Jul 21 2017

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

.TODAY...West of the Big Island, winds variable less than
10 knots becoming south 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 5 feet. East swell
5 feet. Haze through the day. Isolated showers through the day.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 feet. East
swell 5 feet. Haze through the night. Isolated showers through
the night.
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 feet. East
swell 5 feet. Haze through the day. Isolated showers in the
morning. Scattered showers in the afternoon.
.SATURDAY NIGHT...West of the Big Island, winds variable less
than 10 knots becoming southwest 10 knots after midnight. Near
South Point, east winds 20 knots. Wind waves 4 feet. East swell
5 feet. Haze through the night. Scattered showers in the evening.
Isolated showers after midnight.
.SUNDAY...West of the Big Island, winds variable less than
10 knots becoming northwest 10 knots in the afternoon. Near South
Point, east winds 15 knots. Wind waves 3 feet. East swell 4 feet.
Haze through the day. Scattered showers in the morning. Isolated
showers in the afternoon.
.SUNDAY NIGHT...West of the Big Island, winds variable less than
10 knots becoming southwest 10 knots after midnight. Near South
Point, east winds 15 knots. Wind waves 3 feet. Northeast swell
3 feet. Haze through the night. Scattered showers in the evening.
Isolated showers after midnight.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 3 to 4 feet.
Haze. Scattered showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 5 to 6 feet.
East swell 3 feet. Haze. Isolated showers.

$$

PHZ124-220200-
Big Island Southeast Waters-
331 AM HST Fri Jul 21 2017

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

.TODAY...Northeast winds to 25 knots. Wind waves 5 feet. East
swell 6 feet. Scattered showers through the day. Haze in the
afternoon.
.TONIGHT...East winds to 25 knots. Wind waves 5 feet. East swell
6 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 4 feet. East
swell 5 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. East swell
4 feet. Haze. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. East
swell 3 feet. Haze. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves 4 feet. Scattered
showers.
.TUESDAY...East winds 20 knots. Wind waves 5 to 6 feet. East
swell 3 to 4 feet. Scattered showers.

$$



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