Coastal Waters Forecast
Issued by NWS Honolulu, HI

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000
FZHW50 PHFO 231330
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
330 AM HST Sun Jul 23 2017

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

PHZ100-240230-
330 AM HST Sun Jul 23 2017

.Synopsis for Hawaiian coastal waters...
A surface high will remain nearly stationary far northeast of the
islands through the forecast period. Post-Tropical Cyclone
Fernanda is expected to weaken to a trough as it passes near or
just north of the islands tonight through Monday. The trough will
move west of Kauai by early Tuesday.

$$

PHZ110-240230-
Kauai Northwest Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers and slight chance of thunderstorms.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. East swell
4 feet. Scattered showers in the evening, then showers likely
after midnight.
.MONDAY...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Showers likely in the morning, then scattered showers and
slight chance of thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 5 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 5 feet. East swell
3 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 4 to 5 feet. East
swell 3 to 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ111-240230-
Kauai Windward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. East swell
4 feet. Scattered showers in the evening, then showers likely
after midnight.
.MONDAY...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Showers likely through the day. Slight chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 5 feet. Showers likely.
.TUESDAY...East winds 15 knots. Wind waves 5 feet. East swell
3 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 4 to 5 feet. East
swell 3 to 4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ112-240230-
Kauai Leeward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet. Scattered showers and slight chance of thunderstorms.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. East swell
3 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers.
.MONDAY NIGHT...East winds 15 knots. Wind waves 4 feet. East
swell 3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet in the morning. Scattered showers in the morning, then
isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers in the evening, then scattered showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 5 to 6 feet.
Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Isolated
showers.

$$

PHZ113-240230-
Kauai Channel-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers and slight chance of thunderstorms.
.TONIGHT...Northeast winds 15 knots. Wind waves 5 feet. East
swell 4 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 5 feet. East swell
5 feet. Scattered showers.
.MONDAY NIGHT...East winds 15 knots. Wind waves 5 feet. East
swell 4 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 5 feet. East swell
3 feet in the morning. Scattered showers in the morning, then
isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 4 feet. Isolated
showers.
.WEDNESDAY...East winds 20 knots. Wind waves 5 to 6 feet. East
swell 3 to 4 feet. Isolated showers.
.THURSDAY...Northeast winds 20 knots. Wind waves 6 feet. East
swell 3 to 4 feet. Isolated showers.

$$

PHZ114-240230-
Oahu Windward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Scattered showers in the evening, then showers likely
after midnight.
.MONDAY...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Showers likely and slight chance of thunderstorms in the
morning, then scattered showers in the afternoon.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 5 feet decreasing to 3 feet after midnight. Scattered
showers in the evening, then showers likely after midnight.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 feet in the morning. Scattered showers in the morning, then
isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet after midnight. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 to 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ115-240230-
Oahu Leeward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 3 feet. East swell
4 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.MONDAY...Southeast winds 10 knots. Wind waves 3 feet in the
morning then 2 feet or less. East swell 5 feet. Scattered
showers.
.MONDAY NIGHT...East winds 15 knots. Wind waves 3 feet. Northeast
swell 5 feet decreasing to 3 feet after midnight. Scattered
showers.
.TUESDAY...East winds 15 knots. Wind waves 3 feet. Isolated
showers in the morning.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers through the night.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 to 4 feet. Isolated showers.
.THURSDAY...Northeast winds 20 knots. Wind waves 5 to 6 feet.
East swell 3 to 4 feet. Isolated showers.

$$

PHZ116-240230-
Kaiwi Channel-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet after midnight. Isolated showers through the night.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 to 4 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. East swell
3 to 4 feet. Isolated showers.

$$

PHZ117-240230-
Maui County Windward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. East swell
5 feet. Scattered showers in the evening, then showers likely and
slight chance of thunderstorms after midnight.
.MONDAY...East winds 20 knots. Wind waves 5 feet. East swell
4 feet. Showers likely and slight chance of thunderstorms in the
morning, then scattered showers in the afternoon.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. Scattered
showers.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 to 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 5 to 6 feet. East
swell 3 to 4 feet. Scattered showers.

$$

PHZ118-240230-
Maui County Leeward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 10 knots. Wind waves 3 feet. East swell
3 feet. Scattered showers through the day.
.TONIGHT...East winds 10 knots. Wind waves 3 feet. East swell
3 feet. Scattered showers in the evening, then isolated showers
after midnight.
.MONDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 3 feet in the morning
then 2 feet or less. East swell 3 feet in the morning. Haze.
Scattered showers.
.MONDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet. Haze
through the night. Scattered showers in the evening. Isolated
showers after midnight.
.TUESDAY...East winds 15 knots. Wind waves 4 feet.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers.
.WEDNESDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet.
East swell 3 feet. Isolated showers.
.THURSDAY...Northeast winds 15 knots. Wind waves 5 feet. East
swell 3 feet. Isolated showers.

$$

PHZ119-240230-
Maalaea Bay-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 15 knots. Wind waves 2 feet or less.
Isolated showers in the afternoon.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
Isolated showers.
.MONDAY...North winds 10 knots in the morning becoming variable
less than 10 knots. Wind waves 2 feet or less. Isolated heavy
showers.
.MONDAY NIGHT...Northeast winds 15 knots. Wind waves 2 feet or
less. Isolated showers in the evening.
.TUESDAY...Northeast winds to 25 knots. Wind waves 2 feet or
less.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 2 feet
or less.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 3 feet.
.THURSDAY...North winds to 25 knots. Wind waves 3 feet.

$$

PHZ120-240230-
Pailolo Channel-
330 AM HST Sun Jul 23 2017

.TODAY...East winds 20 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers through the night.
.MONDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet. Scattered showers.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. East
swell 3 feet in the evening. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves 5 feet. Scattered
showers in the morning. Isolated showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 5 feet. East
swell 3 feet after midnight. Isolated showers in the evening.
Scattered showers after midnight.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 5 feet. East
swell 3 to 4 feet. Scattered showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 5 feet. East
swell 3 to 4 feet. Scattered showers.

$$

PHZ121-240230-
Alenuihaha Channel-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 20 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers in the evening, then isolated showers
after midnight.
.MONDAY...Northeast winds 20 knots. Wind waves 4 feet. East swell
3 feet in the morning. Haze through the day. Isolated showers in
the morning. Scattered showers in the afternoon.
.MONDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Haze
through the night. Scattered showers in the evening. Isolated
showers after midnight.
.TUESDAY...East winds to 25 knots. Wind waves 6 feet. Isolated
showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 6 feet. East
swell 3 feet. Isolated showers.
.WEDNESDAY...East winds to 25 knots. Wind waves 6 to 8 feet. East
swell 3 to 4 feet. Isolated showers.
.THURSDAY...East winds to 25 knots. Wind waves 7 to 8 feet. East
swell 3 to 4 feet. Isolated showers.

$$

PHZ122-240230-
Big Island Windward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 15 knots. Wind waves 4 feet. East swell
5 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.TONIGHT...Southeast winds 10 knots. Wind waves 4 feet. East
swell 4 feet. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 feet in the morning. Scattered showers.
.MONDAY NIGHT...East winds 20 knots. Wind waves 5 feet. Scattered
showers.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. East swell
3 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 4 feet. East
swell 3 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. East swell
4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 4 feet. East swell
3 to 4 feet. Scattered showers.

$$

PHZ123-240230-
Big Island Leeward Waters-
330 AM HST Sun Jul 23 2017

.TODAY...Winds variable less than 10 knots west of the Big
Island...northeast 15 knots near Kawaihae. Wind waves 4 feet.
East swell 4 feet. Haze through the day. Isolated showers through
the day.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 4 feet. East
swell 3 feet. Haze. Isolated showers.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 4 feet. Haze
through the day. Isolated showers in the morning. Scattered
showers in the afternoon.
.MONDAY NIGHT...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet. Haze
through the night. Scattered showers in the evening. Isolated
showers after midnight.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 6 feet.
Haze. Isolated showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
6 feet. East swell 3 feet. Haze through the night. Isolated
showers through the night.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 6 feet.
East swell 3 to 4 feet. Haze. Isolated showers.
.THURSDAY...West of the Big Island, northwest winds 10 knots
becoming variable less than 10 knots, then becoming south
10 knots after midnight. Near South Point, east winds 20 knots.
Wind waves 6 to 7 feet. East swell 3 to 4 feet. Haze. Isolated
showers.

$$

PHZ124-240230-
Big Island Southeast Waters-
330 AM HST Sun Jul 23 2017

.TODAY...Northeast winds 15 knots. Wind waves 4 feet. East swell
4 feet. Haze through the day. Scattered showers in the morning.
Isolated showers in the afternoon.
.TONIGHT...East winds 15 knots. Wind waves 3 feet. East swell
3 feet. Haze. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves 3 feet. Scattered
showers.
.MONDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Scattered
showers.
.TUESDAY...East winds to 25 knots. Wind waves 6 feet. East swell
3 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 6 feet. East
swell 3 feet. Scattered showers.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 6 to 7 feet.
East swell 4 feet. Scattered showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet. East
swell 3 to 4 feet. Scattered showers.

$$



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