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Select Product Type: All | Routine Bulletins/FCSTS | Warnings/Watches/Advisories | HAWN Weather | Tropical | Marine | Aviation | Daily Obs | Special
Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

568
FZHW50 PHFO 181940
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
940 AM HST Thu Aug 18 2022

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

PHZ100-190815-
940 AM HST Thu Aug 18 2022

.Synopsis for Hawaiian coastal waters...
A surface ridge just north of the state is keeping trade winds on
the lighter side this morning. The ridge is forecast to drift
northward over the next few days resulting in trade winds increasing.
Trade winds may become a bit lighter around Monday as a frontal
system far northwest of the area nudges the ridge axis closer to
the state.

$$

PHZ110-190815-
Kauai Northwest Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 15 knots. Wind waves to 2 feet or
less. Scattered showers late this morning, then isolated showers
this afternoon.
.TONIGHT...East winds 20 knots. Wind waves to 3 feet. Scattered
showers, mainly in the evening.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 4 feet.
Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves to 4 feet. Isolated
showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 4 feet.
Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves around 4 feet.
Scattered showers.
.MONDAY...East winds 15 knots. Wind waves around 4 feet.
Scattered showers.

$$

PHZ111-190815-
Kauai Windward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 15 knots. Wind waves to 2 feet or
less. Scattered showers late this morning, then isolated showers
this afternoon.
.TONIGHT...East winds 15 knots. Wind waves to 4 feet. Scattered
showers.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 15 knots. Wind waves to 4 feet.
Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves to 4 feet. Isolated
showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves to 4 feet.
South swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves around 4 feet. South
swell 3 feet. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves around 4 feet. South
swell 3 feet. Scattered showers.

$$

PHZ112-190815-
Kauai Leeward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 15 knots. Wind waves to 2 feet or
less. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves to 2 feet or less,
becoming 3 feet after midnight. Isolated showers in the evening,
then scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
South swell 3 feet after midnight. Isolated showers after
midnight.
.SUNDAY...East winds 20 knots. In the Kaulakahi Channel, east
winds 20 knots, backing to northeast. Wind waves around 5 feet.
South swell 3 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 4 to 5 feet. South
swell 3 feet. Isolated showers.

$$

PHZ113-190815-
Kauai Channel-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 15 knots. Wind waves to 2 feet or
less, becoming 3 feet this afternoon. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves to 4 feet. Isolated
showers in the evening, then scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves to 5 feet.
South swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves around 5 feet.
South swell 3 feet. Isolated showers.
.MONDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet. South
swell 3 feet. Isolated showers.

$$

PHZ114-190815-
Oahu Windward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 20 knots. Wind waves to 3 feet.
Scattered showers late this morning, then isolated showers this
afternoon.
.TONIGHT...East winds 20 knots. Wind waves to 4 feet. Scattered
showers, mainly in the evening.
.FRIDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves to 5 feet.
South swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves around 4 feet. South
swell 3 feet. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves around 5 feet. South
swell 3 feet. Scattered showers.

$$

PHZ115-190815-
Oahu Leeward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 15 knots. Wind waves to 2 feet or
less, becoming 3 feet this afternoon. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves to 3 feet. Isolated
showers in the evening, then scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY...East winds 20 knots. Wind waves to 4 feet.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves to 5 feet.
South swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves around 5 feet.
South swell 3 feet. Isolated showers.
.MONDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet. South
swell 3 feet. Isolated showers.

$$

PHZ116-190815-
Kaiwi Channel-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 20 knots. Wind waves to 3 feet.
Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.FRIDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet. South
swell 3 feet in the afternoon. Isolated showers.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves to 5 feet.
South swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves 4 to 5 feet. South
swell 3 to 4 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves around 5 feet. South
swell 3 feet. Isolated showers.

$$

PHZ117-190815-
Maui County Windward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 20 knots. Wind waves to 4 feet.
Scattered showers late this morning, then isolated showers this
afternoon.
.TONIGHT...East winds 20 knots. Wind waves to 5 feet. Scattered
showers, mainly in the evening.
.FRIDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet. Isolated
showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
Isolated showers in the evening, then scattered showers after
midnight.
.SUNDAY...East winds 20 knots. Wind waves around 4 feet.
Scattered showers.
.MONDAY...East winds 15 knots. Wind waves around 5 feet.
Scattered showers.

$$

PHZ118-190815-
Maui County Leeward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 20 knots. Wind waves to 4 feet.
Isolated showers.
.TONIGHT...East winds to 25 knots. Wind waves to 5 feet. Isolated
showers.
.FRIDAY...East winds to 25 knots. Wind waves to 5 feet.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY...East winds 20 knots. Wind waves to 5 feet.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves to 5 feet.
South swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves around 4 feet.
South swell 3 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves around 4 feet. South
swell 3 feet. Isolated showers.

$$

PHZ119-190815-
Maalaea Bay-
940 AM HST Thu Aug 18 2022

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.REST OF TODAY...North winds to 25 knots. Wind waves to 2 feet or
less. Isolated showers this afternoon.
.TONIGHT...North winds to 25 knots. Wind waves to 3 feet.
.FRIDAY...North winds to 25 knots. Wind waves to 3 feet.
.FRIDAY NIGHT...North winds to 25 knots. Wind waves to 3 feet.
.SATURDAY...North winds to 25 knots. Wind waves to 3 feet.
.SATURDAY NIGHT...North winds to 25 knots. Wind waves to 3 feet.
.SUNDAY...North winds to 25 knots. Wind waves around 3 feet.
.MONDAY...North winds 20 knots, becoming variable less than
10 knots. Wind waves around 3 feet.

$$

PHZ120-190815-
Pailolo Channel-
940 AM HST Thu Aug 18 2022

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.REST OF TODAY...East winds to 25 knots. Wind waves to 4 feet.
Isolated showers.
.TONIGHT...East winds to 25 knots. Wind waves to 4 feet. Isolated
showers.
.FRIDAY...East winds to 25 knots. Wind waves to 5 feet. Isolated
showers in the morning.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves to 5 feet.
Isolated showers after midnight.
.SATURDAY...East winds to 25 knots. Wind waves to 4 feet.
Isolated showers in the morning.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves to 4 feet.
South swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds to 25 knots. Wind waves around 4 feet.
South swell 3 feet. Isolated showers.
.MONDAY...East winds 20 knots, easing to 10 knots after midnight.
Wind waves around 4 feet. South swell 3 feet. Isolated showers.

$$

PHZ121-190815-
Alenuihaha Channel-
940 AM HST Thu Aug 18 2022

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.REST OF TODAY...East winds to 25 knots. Wind waves to 5 feet.
Isolated showers. A slight chance of thunderstorms this
afternoon.
.TONIGHT...East winds to 25 knots. Wind waves to 6 feet. Isolated
showers.
.FRIDAY...East winds to 25 knots. Wind waves to 6 feet. Isolated
showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves to 6 feet.
Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves to 6 feet.
Isolated showers.
.SATURDAY NIGHT...Northeast winds to 25 knots. Wind waves to
6 feet. South swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds to 25 knots. Wind waves around 6 feet.
South swell 3 feet. Isolated showers.
.MONDAY...East winds 20 knots. Wind waves around 5 feet. South
swell 3 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ122-190815-
Big Island Windward Waters-
940 AM HST Thu Aug 18 2022

.REST OF TODAY...East winds 20 knots. Wind waves to 4 feet.
Scattered showers late this morning, then isolated showers with a
slight chance of thunderstorms this afternoon.
.TONIGHT...East winds to 25 knots. Wind waves to 4 feet.
Scattered showers, mainly in the evening.
.FRIDAY...East winds 20 knots. Wind waves to 4 feet. Isolated
showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves to 4 feet.
Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves to 4 feet. Southwest
swell 3 feet in the afternoon. Isolated showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves to 4 feet.
Southwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...Northeast winds to 25 knots. Wind waves 4 to 5 feet.
Southwest swell 3 feet. Scattered showers.
.MONDAY...East winds 15 knots. Wind waves around 4 feet. Mixed
swell south 3 feet and northeast 3 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

PHZ123-190815-
Big Island Leeward Waters-
940 AM HST Thu Aug 18 2022

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.REST OF TODAY...West of the Big Island, west winds 10 knots.
Near South Point, east winds 20 knots, rising to 25 knots this
afternoon. Wind waves to 5 feet. Isolated showers. A slight
chance of thunderstorms this afternoon.
.TONIGHT...Northwest winds 10 knots west of the Big Island...east
to 25 knots near South Point. Wind waves to 7 feet. Isolated
showers.
.FRIDAY...West winds 10 knots west of the Big Island...east to
25 knots near South Point. Wind waves to 7 feet. Isolated showers
in the morning.
.FRIDAY NIGHT...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 to 7 feet. Isolated
showers after midnight.
.SATURDAY...West of the Big Island, winds variable less than
10 knots, becoming southwest 10 knots in the afternoon. Near
South Point, east winds to 25 knots. Wind waves to 7 feet. South
swell 3 feet in the afternoon. Isolated showers in the morning.
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves to
7 feet. South swell 3 feet. Isolated showers after midnight.
.SUNDAY...West of the Big Island, south winds 10 knots, veering
to northwest in the afternoon, then becoming variable less than
10 knots. Near South Point, east winds to 25 knots. Wind waves
around 7 feet. South swell 3 feet. Isolated showers.
.MONDAY...West of the Big Island, winds variable less than
10 knots, becoming south 10 knots in the afternoon, then veering
to west in the evening, veering to north after midnight. Near
South Point, east winds 15 knots. Wind waves 4 to 6 feet. South
swell 3 feet. Isolated showers.

Winds and seas higher in and near tstms.

$$

PHZ124-190815-
Big Island Southeast Waters-
940 AM HST Thu Aug 18 2022

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.REST OF TODAY...East winds to 25 knots. Wind waves to 5 feet.
Isolated showers. A slight chance of thunderstorms this
afternoon.
.TONIGHT...East winds to 25 knots. Wind waves to 6 feet.
Scattered showers, mainly in the evening.
.FRIDAY...East winds to 25 knots. Wind waves to 7 feet. Isolated
showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves to 7 feet.
Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves to 7 feet. South
swell 3 feet in the afternoon. Isolated showers.
.SATURDAY NIGHT...Northeast winds to 25 knots. Wind waves to
7 feet. South swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds to 25 knots. Wind waves around 7 feet.
South swell 3 feet. Isolated showers.
.MONDAY...East winds 20 knots. Wind waves 4 to 6 feet. Mixed
swell south 3 feet and northeast 3 feet. Scattered showers.

Winds and seas higher in and near tstms.

$$

Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office



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