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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

629
FZHW50 PHFO 201925
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
925 AM HST Fri Apr 20 2018

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

PHZ100-210815-
925 AM HST Fri Apr 20 2018

.Synopsis for Hawaiian coastal waters...
A high far north of the islands will move east through early next
week. A trough aloft will produce locally heavy downpours and a
slight chance of thunderstorms today. A new high will build NW of
the area early next week.

$$

PHZ110-210815-
Kauai Northwest Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers, mainly in the evening.
.SATURDAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers, mainly in the evening.
.SUNDAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 6 feet. Isolated showers in the evening, then
scattered showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 3 to 5 feet. Scattered showers.

$$

PHZ111-210815-
Kauai Windward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers late this morning, then
isolated showers this afternoon.
.TONIGHT...East winds 15 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers, mainly in the evening.
.SATURDAY...East winds 15 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers, mainly in the morning.
.SUNDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 6 feet. Isolated showers in the evening, then
scattered showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves around 9 feet.
Northwest swell 3 to 5 feet. Scattered showers.

$$

PHZ112-210815-
Kauai Leeward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Isolated showers.
.TONIGHT...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY...Northeast winds 20 knots...northeast 10 knots in the
Kaulakahi Channel. Wind waves around 6 feet. Northwest swell
4 feet. Isolated showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY NIGHT...East winds to 25 knots...east 15 knots in the
Kaulakahi Channel. Wind waves around 8 feet. Northwest swell
6 feet. Isolated showers.
.MONDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 4 to 6 feet. Isolated showers.
.TUESDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 3 to 4 feet. Isolated showers.

$$

PHZ113-210815-
Kauai Channel-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...Northeast winds 20 knots. Wind waves around
7 feet. Northwest swell 4 feet. Scattered showers late this
morning, then isolated showers this afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY...Northeast winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY NIGHT...Northeast winds 20 knots. Wind waves around
8 feet. Northwest swell 6 feet. Isolated showers.
.MONDAY...Northeast winds to 25 knots. Wind waves around 9 feet.
Northwest swell 5 to 6 feet. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves around 9 feet.
Northwest swell 3 to 5 feet. Isolated showers.

$$

PHZ114-210815-
Oahu Windward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers, mainly in the morning.
.SUNDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 6 feet. Isolated showers in the evening, then
scattered showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves around 9 feet.
Northwest swell 4 to 5 feet. Scattered showers.

$$

PHZ115-210815-
Oahu Leeward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Showers likely late this morning, then
isolated showers this afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves around 5 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY...Northeast winds 20 knots. Wind waves around 5 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves around
6 feet. Northwest swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves around 7 feet.
Northwest swell 3 feet. Isolated showers.
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves around
8 feet. Northwest swell 5 feet. Isolated showers.
.MONDAY...Northeast winds 20 knots. Wind waves around 8 feet.
Northwest swell 4 to 5 feet. Isolated showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 7 to 8 feet.
Northwest swell 3 to 4 feet. Isolated showers.

$$

PHZ116-210815-
Kaiwi Channel-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Heavy showers likely late this morning,
then scattered showers this afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Isolated showers.
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves around
8 feet. Northwest swell 5 feet. Isolated showers.
.MONDAY...Northeast winds 20 knots. Wind waves 8 to 9 feet.
Northwest swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 4 to 5 feet. Scattered showers.

$$

PHZ117-210815-
Maui County Windward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Heavy showers likely late this morning,
then scattered showers this afternoon.
.TONIGHT...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers, mainly in the morning.
.SUNDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 4 to 5 feet. Scattered showers.

$$

PHZ118-210815-
Maui County Leeward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 3 feet. Heavy showers likely late this morning,
then scattered showers this afternoon.
.TONIGHT...Northeast winds 15 knots. Wind waves around 5 feet.
Northwest swell 3 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves around 6 feet.
Northwest swell 3 feet. Isolated showers.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves around
6 feet. Northwest swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves around 6 feet.
Northwest swell 3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 20 knots. Wind waves around
6 feet. Northwest swell 4 feet. Isolated showers after midnight.
.MONDAY...Northeast winds 15 knots. Wind waves around 7 feet.
Northwest swell 3 to 4 feet. Isolated showers.
.TUESDAY...Northeast winds 15 knots. Wind waves around 7 feet.
Northwest swell 3 feet. Isolated showers.

$$

PHZ119-210815-
Maalaea Bay-
925 AM HST Fri Apr 20 2018

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

.REST OF TODAY...North winds to 25 knots. Wind waves around
3 feet. Scattered heavy showers.
.TONIGHT...North winds to 25 knots. Wind waves around 3 feet in
the evening, then around 2 feet or less. Isolated showers after
midnight.
.SATURDAY...North winds to 25 knots. Wind waves around 3 feet.
Isolated showers.
.SATURDAY NIGHT...North winds to 25 knots. Wind waves around
3 feet. Isolated showers in the evening.
.SUNDAY...North winds to 25 knots. Wind waves around 3 feet.
.SUNDAY NIGHT...North winds to 25 knots. Wind waves around
3 feet.
.MONDAY...North winds to 25 knots. Wind waves around 3 feet.
.TUESDAY...North winds to 25 knots. Wind waves around 3 feet.

$$

PHZ120-210815-
Pailolo Channel-
925 AM HST Fri Apr 20 2018

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

.REST OF TODAY...East winds to 25 knots. Wind waves around
7 feet. Northwest swell 3 feet. Scattered heavy showers.
.TONIGHT...Northeast winds to 25 knots. Wind waves around 5 feet.
Northwest swell 3 feet. Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves around 6 feet.
Northwest swell 3 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves around
7 feet. Northwest swell 3 feet. Scattered showers, mainly in the
evening.
.SUNDAY...East winds to 25 knots. Wind waves around 6 feet.
Northwest swell 3 feet. Isolated showers.
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves around
7 feet. Northwest swell 4 feet. Isolated showers.
.MONDAY...Northeast winds to 25 knots. Wind waves 7 to 8 feet.
Northwest swell 4 feet. Isolated showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 7 to 8 feet.
Northwest swell 3 to 4 feet. Isolated showers.

$$

PHZ121-210815-
Alenuihaha Channel-
925 AM HST Fri Apr 20 2018

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

.REST OF TODAY...East winds to 25 knots. Wind waves around
8 feet. Northwest swell 5 feet. Scattered heavy showers and a
slight chance of thunderstorms.
.TONIGHT...East winds to 25 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Hazy. Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves around 8 feet.
Northwest swell 4 feet. Hazy. Isolated showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves around
8 feet. Northwest swell 4 feet. Hazy. Isolated showers.
.SUNDAY...Northeast winds to 25 knots. Wind waves around 8 feet.
Northwest swell 4 feet. Hazy. Isolated showers.
.SUNDAY NIGHT...Northeast winds to 30 knots. Wind waves around
9 feet. Northwest swell 5 feet. Hazy. Isolated showers.
.MONDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 5 to 6 feet. Hazy. Isolated showers.
.TUESDAY...East winds to 25 knots. Wind waves around 9 feet.
Northwest swell 4 to 5 feet. Hazy. Isolated showers.

$$

PHZ122-210815-
Big Island Windward Waters-
925 AM HST Fri Apr 20 2018

.REST OF TODAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 5 feet. Occasional heavy showers and a slight
chance of thunderstorms.
.TONIGHT...East winds 15 knots. Wind waves around 5 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves around 6 feet.
Northwest swell 4 feet. Scattered showers.
.SUNDAY NIGHT...Northeast winds 20 knots. Wind waves around
7 feet. Northwest swell 5 feet. Scattered showers.
.MONDAY...East winds 20 knots. Wind waves around 7 feet.
Northwest swell 5 to 6 feet. Scattered showers.
.TUESDAY...East winds 20 knots. Wind waves 7 to 8 feet. Northwest
swell 4 to 5 feet. Scattered showers.

$$

PHZ123-210815-
Big Island Leeward Waters-
925 AM HST Fri Apr 20 2018

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

.REST OF TODAY...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves around
8 feet. Northwest swell 3 feet. Hazy. Scattered heavy showers and
a slight chance of thunderstorms.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves around
8 feet. Northwest swell 3 feet. Hazy. Isolated showers.
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves around
8 feet. Northwest swell 3 feet. Hazy. Isolated showers.
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves around
8 feet. Northwest swell 3 feet. Hazy. Isolated showers.
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves around
9 feet. Northwest swell 3 feet. Hazy. Isolated showers.
.SUNDAY NIGHT...West of the Big Island, winds variable less than
10 knots, becoming northeast 10 knots after midnight. Near South
Point, east winds to 25 knots. Wind waves around 9 feet.
Northwest swell 3 feet. Hazy. Isolated showers.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves around
9 feet. Northwest swell 4 feet. Hazy. Isolated showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves around
9 feet. Northwest swell 3 to 4 feet. Hazy. Isolated showers.

$$

PHZ124-210815-
Big Island Southeast Waters-
925 AM HST Fri Apr 20 2018

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

.REST OF TODAY...Northeast winds to 25 knots. Wind waves around
8 feet. Northwest swell 3 feet. Heavy showers likely and a slight
chance of thunderstorms.
.TONIGHT...Northeast winds to 25 knots. Wind waves around 8 feet.
Northwest swell 3 feet. Scattered showers.
.SATURDAY...Northeast winds to 25 knots. Wind waves around
8 feet. Northwest swell 3 feet. Scattered showers.
.SATURDAY NIGHT...Northeast winds to 25 knots. Wind waves around
8 feet. Northwest swell 3 feet. Scattered showers.
.SUNDAY...Northeast winds to 25 knots. Wind waves around 9 feet.
Northwest swell 3 feet. Scattered showers.
.SUNDAY NIGHT...Northeast winds to 25 knots. Wind waves around
9 feet. Northwest swell 3 feet. Scattered showers.
.MONDAY...Northeast winds to 25 knots. Wind waves around 9 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves around 9 feet.
Northwest swell 3 to 4 feet. Scattered showers.

$$

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



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