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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

540
FZHW50 PHFO 161337
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
337 AM HST Fri Apr 16 2021

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

PHZ100-170215-
337 AM HST Fri Apr 16 2021

.Synopsis for Hawaiian coastal waters...
Low pressure moving into the area north of the state will weaken
trade winds and turn them from the north to northeast today into
Saturday. East winds are expected by Sunday as the low moves away
and the high reestablishes itself north of the islands. A front
approaching from the northwest will bring light winds Monday and
Tuesday.

$$

PHZ110-170215-
Kauai Northwest Waters-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 15 knots. Wind waves 3 feet. North swell
5 feet. Scattered showers.
.TONIGHT...Northeast winds 15 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less
then 3 feet in the afternoon. North swell 4 feet. Isolated
showers through the day.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 4 feet increasing to 6 feet after midnight. Isolated
showers in the evening, then scattered showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. North swell
5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers.
.MONDAY...Winds variable less than 10 knots becoming northeast
10 knots in the evening, then becoming variable less than
10 knots after midnight. Wind waves 2 feet or less. North swell
3 to 4 feet. Isolated showers.
.TUESDAY...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 3 to 4 feet. Isolated showers.

$$

PHZ111-170215-
Kauai Windward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 15 knots. Wind waves 3 feet. North swell
4 feet. Scattered showers.
.TONIGHT...North winds 15 knots. Wind waves 3 feet. North swell
4 feet. Scattered showers in the evening, then isolated showers
after midnight.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less.
North swell 4 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 4 feet increasing to 6 feet after midnight. Isolated
showers in the evening, then scattered showers after midnight.
.SUNDAY...East winds 10 knots. Wind waves 3 feet. North swell
5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers.
.MONDAY...Winds variable less than 10 knots becoming north
10 knots in the evening, then becoming variable less than
10 knots after midnight. Wind waves 2 feet or less. North swell
3 to 4 feet. Isolated showers.
.TUESDAY...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 3 feet. Isolated showers.

$$

PHZ112-170215-
Kauai Leeward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 15 knots. Wind waves 3 feet. North swell
4 feet. Isolated showers in the morning, then scattered showers
in the afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves 4 feet. North
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.SATURDAY...Northeast winds 20 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers through the day.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers in the evening.
.MONDAY...Winds variable less than 10 knots becoming north
10 knots in the evening, then becoming variable less than
10 knots after midnight. Wind waves 2 feet or less. North swell
3 to 4 feet. Isolated showers.
.TUESDAY...Northeast winds 10 knots in the morning becoming
variable less than 10 knots, then becoming northeast 10 knots.
Wind waves 2 feet or less. North swell 3 to 4 feet. Isolated
showers.

$$

PHZ113-170215-
Kauai Channel-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 3 feet. North swell
4 feet. Isolated showers.
.TONIGHT...Northeast winds 20 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers in the evening, then isolated
showers after midnight.
.SATURDAY...Northeast winds 20 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers through the day.
.SATURDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers.
.SUNDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 4 feet. Isolated showers through the night.
.MONDAY...Winds variable less than 10 knots becoming north
10 knots in the evening, then becoming variable less than
10 knots after midnight. Wind waves 2 feet or less. North swell
3 to 4 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
10 knots. Wind waves 2 feet or less. North swell 3 feet. Isolated
showers.

$$

PHZ114-170215-
Oahu Windward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 4 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.TONIGHT...North winds 15 knots. Wind waves 3 feet. North swell
4 feet. Scattered showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. North swell
5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 5 feet. Scattered showers in the evening, then isolated
showers after midnight.
.MONDAY...Winds variable less than 10 knots becoming north
10 knots in the evening, then becoming variable less than
10 knots after midnight. Wind waves 2 feet or less. North swell
3 to 4 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
10 knots. Wind waves 3 feet. North swell 3 feet. Isolated
showers.

$$

PHZ115-170215-
Oahu Leeward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 3 feet in the
morning then 2 feet or less. North swell 3 feet. Isolated showers
in the afternoon.
.TONIGHT...Northeast winds 15 knots. Wind waves 2 feet or less
then 3 feet after midnight. North swell 4 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 3 feet. Isolated showers through the day.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
North swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 15 knots in the evening becoming
variable less than 10 knots. Wind waves 3 feet. North swell
4 feet. Isolated showers in the evening.
.MONDAY...Winds variable less than 10 knots becoming northwest
10 knots in the afternoon, then becoming variable less than
10 knots. Wind waves 2 feet or less. North swell 3 to 4 feet.
Isolated showers.
.TUESDAY...North winds 10 knots in the morning becoming variable
less than 10 knots, then becoming northeast 10 knots. Wind waves
2 feet or less. North swell 3 feet. Isolated showers.

$$

PHZ116-170215-
Kaiwi Channel-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 3 feet in the
morning then 2 feet or less. North swell 4 feet. Isolated
showers.
.TONIGHT...Northeast winds 15 knots. Wind waves 2 feet or less
then 3 feet after midnight. North swell 4 feet. Isolated showers
in the evening, then scattered showers after midnight.
.SATURDAY...Northeast winds 20 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
North swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers through the night.
.MONDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. North swell 3 to 4 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
15 knots. Wind waves 3 feet. North swell 3 feet. Isolated
showers.

$$

PHZ117-170215-
Maui County Windward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...North winds 10 knots. Wind waves 2 feet or less. North
swell 4 feet. Isolated showers.
.TONIGHT...North winds 10 knots. Wind waves 2 feet or less then
3 feet after midnight. North swell 4 feet. Scattered showers in
the evening, then isolated showers after midnight.
.SATURDAY...Northeast winds 15 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers in the evening, then scattered
showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. North swell
5 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Scattered showers in the evening, then isolated
showers after midnight.
.MONDAY...Southeast winds 10 knots becoming variable less than
10 knots. Wind waves 3 feet. North swell 3 to 4 feet. Isolated
showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
10 knots. Wind waves 3 feet. North swell 3 feet. Isolated
showers.

$$

PHZ118-170215-
Maui County Leeward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...North winds 10 knots. Wind waves 3 feet in the morning
then 2 feet or less. North swell 3 feet.
.TONIGHT...Northeast winds 15 knots. Wind waves 2 feet or less.
North swell 4 feet. Isolated showers through the night.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less
then 3 feet in the afternoon. North swell 3 feet. Isolated
showers.
.SATURDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 10 knots. Wind waves 3 feet in the
morning then 2 feet or less. North swell 4 feet. Isolated
showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Isolated showers in the evening.
.MONDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. North swell 3 to 4 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
15 knots. Wind waves 2 feet or less. North swell 3 feet. Isolated
showers.

$$

PHZ119-170215-
Maalaea Bay-
337 AM HST Fri Apr 16 2021

.TODAY...North winds 10 knots. Wind waves 2 feet or less.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
Isolated showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 2 feet or less.
Isolated showers.
.SATURDAY NIGHT...North winds 15 knots. Wind waves 2 feet or
less. Isolated showers through the night.
.SUNDAY...North winds 20 knots. Wind waves 2 feet or less.
Isolated showers through the day.
.SUNDAY NIGHT...North winds 20 knots easing to 10 knots after
midnight. Wind waves 2 feet or less. Isolated showers in the
evening.
.MONDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming north
15 knots. Wind waves 2 feet or less. Isolated showers.

$$

PHZ120-170215-
Pailolo Channel-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 2 feet or less.
Northeast swell 3 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
Northeast swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less
then 3 feet in the afternoon. Northeast swell 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves 3 feet.
Northeast swell 3 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 3 feet. North swell
5 feet. Isolated showers.
.SUNDAY NIGHT...East winds 20 knots becoming south 10 knots after
midnight. Wind waves 3 feet. North swell 4 feet. Isolated showers
through the night.
.MONDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. Northeast swell 3 to 4 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
10 knots. Wind waves 3 feet. Northeast swell 3 feet. Isolated
showers.

$$

PHZ121-170215-
Alenuihaha Channel-
337 AM HST Fri Apr 16 2021

.TODAY...Northeast winds 10 knots. Wind waves 2 feet or less.
Northeast swell 3 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 4 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less
then 4 feet in the afternoon. North swell 4 feet. Isolated
showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots. Wind waves 4 feet. North
swell 4 feet. Isolated showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 4 feet. North
swell 4 feet. Isolated showers through the night.
.MONDAY...East winds 10 knots becoming variable less than
10 knots. Wind waves 3 feet. North swell 3 to 4 feet. Isolated
showers.
.TUESDAY...Winds variable less than 10 knots becoming northeast
10 knots. Wind waves 3 feet. Northeast swell 3 feet. Isolated
showers.

$$

PHZ122-170215-
Big Island Windward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 3 feet. Isolated showers.
.TONIGHT...East winds 10 knots backing northwest after midnight.
Wind waves 2 feet or less. North swell 4 feet. Isolated showers.
.SATURDAY...Winds variable less than 10 knots becoming northeast
10 knots in the afternoon. Wind waves 2 feet or less. North swell
4 feet. Isolated showers through the day.
.SATURDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 3 feet. Isolated showers in the evening, then scattered
showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 3 feet. North swell
4 feet. Scattered showers.
.SUNDAY NIGHT...East winds 10 knots. Wind waves 3 feet. North
swell 4 feet. Scattered showers.
.MONDAY...Southeast winds 10 knots. Wind waves 3 feet. North
swell 3 to 4 feet. Scattered showers.
.TUESDAY...East winds 10 knots. Wind waves 3 feet. North swell
3 feet. Scattered showers.

$$

PHZ123-170215-
Big Island Leeward Waters-
337 AM HST Fri Apr 16 2021

.TODAY...East winds 10 knots. Wind waves 3 feet. Isolated showers
in the afternoon.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
Isolated showers in the evening.
.SATURDAY...West of the Big Island, northeast winds 10 knots in
the morning becoming variable less than 10 knots. Near South
Point, east winds 10 knots rising to 20 knots in the afternoon.
Wind waves 2 feet or less then 3 feet in the afternoon.
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 5 feet.
Isolated showers.
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet. North
swell 3 feet. Isolated showers.
.SUNDAY NIGHT...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet. North
swell 3 feet. Scattered showers in the evening, then isolated
showers after midnight.
.MONDAY...Southeast winds 10 knots veering south in the
afternoon, then backing northeast. Wind waves 3 feet. North swell
3 feet. Isolated showers.
.TUESDAY...North winds 10 knots in the morning becoming variable
less than 10 knots, then becoming northeast 10 knots. Wind waves
3 feet. Scattered showers.

$$

PHZ124-170215-
Big Island Southeast Waters-
337 AM HST Fri Apr 16 2021

.TODAY...East winds 10 knots. Wind waves 3 feet. Northeast swell
3 feet. Isolated showers through the day.
.TONIGHT...Winds variable less than 10 knots. Wind waves 2 feet
or less. Northeast swell 3 feet. Isolated showers in the evening.
.SATURDAY...East winds 10 knots rising to 20 knots in the
afternoon. Wind waves 2 feet or less then 3 feet in the
afternoon. Northeast swell 4 feet.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves 5 feet.
Northeast swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves 5 feet. Northeast
swell 3 feet. Scattered showers.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Northeast
swell 4 feet. Scattered showers.
.MONDAY...East winds 10 knots. Wind waves 3 feet. Northeast swell
3 to 4 feet. Scattered showers.
.TUESDAY...East winds 10 knots. Wind waves 3 to 4 feet. Northeast
swell 3 feet. Scattered showers.

$$

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



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