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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

419
FZHW50 PHFO 201317
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
317 AM HST Mon Sep 20 2021

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

PHZ100-210215-
317 AM HST Mon Sep 20 2021

.Synopsis for Hawaiian coastal waters...
A surface ridge far north of the islands will be nearly
stationary and change little through Friday.

$$

PHZ110-210215-
Kauai Northwest Waters-
317 AM HST Mon Sep 20 2021

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

$$

PHZ111-210215-
Kauai Windward Waters-
317 AM HST Mon Sep 20 2021

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

$$

PHZ112-210215-
Kauai Leeward Waters-
317 AM HST Mon Sep 20 2021

.TODAY...East winds 15 knots. Wind waves 6 feet. Isolated
showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet after midnight. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 4 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 to 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ113-210215-
Kauai Channel-
317 AM HST Mon Sep 20 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet after midnight. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 4 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
3 to 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ114-210215-
Oahu Windward Waters-
317 AM HST Mon Sep 20 2021

.TODAY...East winds 15 knots. Wind waves 6 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet after midnight. Isolated showers in the evening,
then scattered showers after midnight.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 5 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 4 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
3 to 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
3 to 5 feet. Scattered showers.

$$

PHZ115-210215-
Oahu Leeward Waters-
317 AM HST Mon Sep 20 2021

.TODAY...East winds 15 knots. Wind waves 4 feet. Isolated showers
in the afternoon.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers.
.TUESDAY...East winds 20 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers through the day.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 4 feet. Isolated showers.
.WEDNESDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 4 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 5 feet.
Northwest swell 4 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 5 to 6 feet.
Northwest swell 3 to 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 5 to 6 feet. Northwest
swell 3 to 4 feet. Isolated showers.

$$

PHZ116-210215-
Kaiwi Channel-
317 AM HST Mon Sep 20 2021

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

$$

PHZ117-210215-
Maui County Windward Waters-
317 AM HST Mon Sep 20 2021

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

$$

PHZ118-210215-
Maui County Leeward Waters-
317 AM HST Mon Sep 20 2021

.TODAY...Northeast winds 15 knots. Wind waves 5 feet. Isolated
showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 5 feet. Isolated
showers.
.TUESDAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers through the night.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 4 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Isolated showers.
.THURSDAY...East winds 15 knots. Wind waves 4 to 5 feet. North
swell 3 feet. Isolated showers.
.FRIDAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
3 feet. Isolated showers.

$$

PHZ119-210215-
Maalaea Bay-
317 AM HST Mon Sep 20 2021

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

.TODAY...North winds to 25 knots. Wind waves 2 feet or less.
Isolated showers in the afternoon.
.TONIGHT...North winds to 25 knots. Wind waves 2 feet or less.
Isolated showers.
.TUESDAY...North winds to 25 knots. Wind waves 3 feet. Isolated
showers in the afternoon.
.TUESDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
Isolated showers in the evening.
.WEDNESDAY...North winds to 25 knots. Wind waves 2 feet or less.
.WEDNESDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
.THURSDAY...North winds 20 knots. Wind waves 2 feet or less.
Isolated showers.
.FRIDAY...North winds 20 knots. Wind waves 3 feet.

$$

PHZ120-210215-
Pailolo Channel-
317 AM HST Mon Sep 20 2021

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

.TODAY...East winds to 25 knots. Wind waves 5 feet. Isolated
showers.
.TONIGHT...East winds to 25 knots. Wind waves 5 feet. Scattered
showers in the evening. Isolated showers after midnight.
.TUESDAY...East winds to 25 knots. Wind waves 5 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 4 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...East winds to 25 knots. Wind waves 4 feet. Northwest
swell 4 feet. Scattered showers in the morning. Isolated showers
in the afternoon.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers in the evening, then
isolated showers after midnight.
.THURSDAY...East winds 20 knots. Wind waves 5 to 6 feet.
Northwest swell 3 to 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ121-210215-
Alenuihaha Channel-
317 AM HST Mon Sep 20 2021

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

.TODAY...East winds to 25 knots. Wind waves 7 feet. Isolated
showers in the morning. Scattered showers in the afternoon.
.TONIGHT...East winds to 25 knots. Wind waves 7 feet. Isolated
showers.
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Isolated showers through the day.
.TUESDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Isolated showers through the night.
.WEDNESDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
7 feet. Northwest swell 4 feet. Isolated showers.
.THURSDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 3 to 4 feet. Isolated showers.
.FRIDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 3 to 4 feet. Isolated showers.

$$

PHZ122-210215-
Big Island Windward Waters-
317 AM HST Mon Sep 20 2021

.TODAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Scattered
showers.
.TUESDAY...East winds 20 knots. Wind waves 4 feet. Northwest
swell 3 feet. Scattered showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 5 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 5 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 to 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 5 to 6 feet. Northwest
swell 3 to 4 feet. Scattered showers.

$$

PHZ123-210215-
Big Island Leeward Waters-
317 AM HST Mon Sep 20 2021

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

.TODAY...West winds 10 knots west of the Big Island...east to
25 knots near South Point. Wind waves 7 feet. Isolated showers.
.TONIGHT...West of the Big Island, northwest winds 10 knots in
the evening becoming variable less than 10 knots. Near South
Point, east winds to 25 knots. Wind waves 7 feet. Isolated
showers.
.TUESDAY...Southwest winds 10 knots west of the Big Island...east
to 25 knots near South Point. Wind waves 8 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
7 feet. Northwest swell 3 feet. Isolated showers.
.THURSDAY...West of the Big Island, winds variable less than
10 knots becoming north 10 knots after midnight. Near South
Point, east winds to 25 knots. Wind waves 7 feet. Northwest swell
3 feet. Isolated showers.
.FRIDAY...West of the Big Island, winds variable less than
10 knots becoming northwest 10 knots in the afternoon, then
veering southeast in the evening backing north after midnight.
Near South Point, east winds 20 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.

$$

PHZ124-210215-
Big Island Southeast Waters-
317 AM HST Mon Sep 20 2021

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

.TODAY...Northeast winds to 25 knots. Wind waves 7 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.TONIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Scattered showers.
.TUESDAY...East winds to 25 knots. Wind waves 8 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
7 feet. Northwest swell 4 feet. Scattered showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 3 to 4 feet. Scattered showers.
.FRIDAY...East winds to 25 knots. Wind waves 7 to 8 feet.
Northwest swell 3 feet. Isolated showers.

$$

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



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