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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

107
FZHW50 PHFO 231318
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
318 AM HST Mon Apr 23 2018

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

PHZ100-240230-
318 AM HST Mon Apr 23 2018

.Synopsis for Hawaiian coastal waters...
Strong high pressure will hold north of the waters through
midweek, then weaken through the second half as a front
approaches and moves into the area.

$$

PHZ110-240230-
Kauai Northwest Waters-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TONIGHT...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 5 feet. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet. North
swell 4 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 8 feet. North swell
4 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots veering southeast after midnight.
Wind waves 5 to 6 feet. Northwest swell 4 to 5 feet. Scattered
showers.
.FRIDAY...Winds variable less than 10 knots becoming northwest
10 knots in the afternoon and evening, then becoming north
20 knots after midnight. Wind waves 4 to 5 feet. Northwest swell
5 feet. Haze. Scattered showers.

$$

PHZ111-240230-
Kauai Windward Waters-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 6 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Scattered showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. North swell
3 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...Southeast winds 10 knots. Wind waves 5 to 6 feet.
Northwest swell 3 to 5 feet. Scattered showers.
.FRIDAY...South winds 10 knots veering northwest. Wind waves
4 feet. Northwest swell 5 to 6 feet. Haze. Scattered showers.

$$

PHZ112-240230-
Kauai Leeward Waters-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 6 feet. Isolated showers through the day.
.TONIGHT...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 5 feet. Isolated showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
isolated showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 8 feet. North swell
3 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight.
.THURSDAY...East winds 10 knots becoming variable less than
10 knots. Wind waves 4 to 5 feet. Northwest swell 4 to 5 feet.
Scattered showers.
.FRIDAY...Winds variable less than 10 knots becoming north
15 knots. Wind waves 3 to 5 feet. Northwest swell 5 to 6 feet.
Haze. Scattered showers.

$$

PHZ113-240230-
Kauai Channel-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet. North
swell 3 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight.
.THURSDAY...East winds 15 knots veering southeast after midnight.
Wind waves 5 to 6 feet. Northwest swell 3 to 5 feet. Scattered
showers.
.FRIDAY...Winds variable less than 10 knots becoming southwest
10 knots in the afternoon, then veering north. Wind waves 4 feet.
Northwest swell 5 feet. Haze. Scattered showers.

$$

PHZ114-240230-
Oahu Windward Waters-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 6 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TONIGHT...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 5 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 to 6 feet.
Northwest swell 4 to 5 feet. Scattered showers.
.FRIDAY...South winds 10 knots veering southwest in the
afternoon, then veering northwest. Wind waves 4 feet. Northwest
swell 5 feet. Haze. Scattered showers.

$$

PHZ115-240230-
Oahu Leeward Waters-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Isolated showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.THURSDAY...East winds 10 knots. Wind waves 3 to 5 feet.
Northwest swell 3 to 5 feet. Scattered showers.
.FRIDAY...Winds variable less than 10 knots becoming southwest
10 knots in the afternoon, then veering west in the evening
veering north after midnight. Wind waves 3 feet. Northwest swell
5 feet. Haze. Scattered showers.

$$

PHZ116-240230-
Kaiwi Channel-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 6 feet. Isolated showers through the day.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet. North
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Scattered showers.
.THURSDAY...East winds 20 knots easing to 10 knots after
midnight. Wind waves 5 to 6 feet. Northwest swell 3 to 5 feet.
Isolated showers.
.FRIDAY...Winds variable less than 10 knots becoming west
10 knots in the evening, then veering north after midnight. Wind
waves 4 feet. Northwest swell 5 feet. Haze. Scattered showers.

$$

PHZ117-240230-
Maui County Windward Waters-
318 AM HST Mon Apr 23 2018

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

.TODAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
6 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 to 6 feet.
Northwest swell 3 to 5 feet. Scattered showers.
.FRIDAY...Southeast winds 15 knots veering southwest in the
evening, then veering northwest after midnight. Wind waves 4 to
5 feet. Northwest swell 5 feet. Haze. Scattered showers.

$$

PHZ118-240230-
Maui County Leeward Waters-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers through the night.
.TUESDAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 3 feet. Isolated showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds 15 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 6 feet.
North swell 3 feet. Isolated showers through the night.
.THURSDAY...East winds 10 knots. Wind waves 4 to 5 feet.
Northwest swell 3 feet. Isolated showers.
.FRIDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots, then becoming northwest 10 knots.
Wind waves 3 feet. Northwest swell 3 to 4 feet. Haze. Scattered
showers.

$$

PHZ119-240230-
Maalaea Bay-
318 AM HST Mon Apr 23 2018

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

.TODAY...North winds to 25 knots. Wind waves 4 feet.
.TONIGHT...North winds to 25 knots. Wind waves 4 feet. Isolated
showers after midnight.
.TUESDAY...North winds to 25 knots. Wind waves 4 feet. Isolated
showers through the day.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 4 feet.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 3 feet.
Isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
3 feet. Isolated showers after midnight.
.THURSDAY...Northeast winds 20 knots easing to 10 knots. Wind
waves 2 feet or less. Isolated showers.
.FRIDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. Haze. Scattered showers.

$$

PHZ120-240230-
Pailolo Channel-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Isolated showers.
.TONIGHT...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Isolated showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 3 feet. Isolated showers through the night.
.THURSDAY...East winds 20 knots becoming variable less than
10 knots. Wind waves 4 to 5 feet. Northwest swell 3 to 4 feet.
Isolated showers.
.FRIDAY...Winds variable less than 10 knots becoming south
10 knots in the afternoon, then becoming variable less than
10 knots in the evening becoming northwest 10 knots after
midnight. Wind waves 3 to 4 feet. Northwest swell 4 feet. Haze.
Scattered showers.

$$

PHZ121-240230-
Alenuihaha Channel-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds to 30 knots. Wind waves 9 feet.
Northwest swell 5 feet. Scattered showers in the morning.
Isolated showers in the afternoon.
.TONIGHT...East winds to 30 knots. Wind waves 9 feet. Northwest
swell 5 feet. Isolated showers.
.TUESDAY...East winds to 30 knots. Wind waves 10 feet. Northwest
swell 4 feet. Isolated showers through the day.
.TUESDAY NIGHT...Northeast winds to 30 knots. Wind waves 10 feet.
Northwest swell 4 feet. Isolated showers in the evening.
Scattered showers after midnight.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet. Scattered showers in the morning.
Isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
North swell 4 feet. Isolated showers in the evening. Scattered
showers after midnight.
.THURSDAY...East winds 15 knots. Wind waves 5 to 7 feet.
Northwest swell 3 to 4 feet. Haze. Isolated showers.
.FRIDAY...East winds 15 knots veering south in the afternoon,
then veering west. Wind waves 3 to 4 feet. Northwest swell 4 to
5 feet. Haze. Scattered showers.

$$

PHZ122-240230-
Big Island Windward Waters-
318 AM HST Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH EARLY
WEDNESDAY MORNING...

.TODAY...Northeast winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers in the evening, then showers
likely after midnight.
.TUESDAY...East winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Showers likely in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 4 feet. Scattered showers.
.FRIDAY...South winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 4 to 5 feet. Scattered showers.

$$

PHZ123-240230-
Big Island Leeward Waters-
318 AM HST Mon Apr 23 2018

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

.TODAY...West of the Big Island, winds variable less than
10 knots becoming west 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 8 feet. Northwest swell
4 feet. Haze. Isolated showers.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 feet.
Northwest swell 4 feet. Haze. Isolated showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 feet.
Northwest swell 3 feet. Haze through the day. Isolated showers in
the morning. Scattered showers in the afternoon.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
9 feet. Northwest swell 3 feet. Haze. Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 8 feet. Haze.
Isolated showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
8 feet. Haze. Isolated showers.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 to 7 feet.
Northwest swell 3 feet. Haze. Isolated showers.
.FRIDAY...West of the Big Island, winds variable less than
10 knots becoming north 10 knots after midnight. Near South
Point, east winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 3 feet. Haze. Scattered showers.

$$

PHZ124-240230-
Big Island Southeast Waters-
318 AM HST Mon Apr 23 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.TONIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet. Scattered showers.
.TUESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Scattered showers.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...Northeast winds 20 knots. Wind waves 8 feet.
Northwest swell 3 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
8 feet. North swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 to 7 feet. North
swell 3 to 4 feet. Scattered showers.
.FRIDAY...East winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 4 feet. Scattered showers.

$$

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



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