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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

539
FZHW50 PHFO 202036
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
1036 AM HST Wed Jan 20 2021

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

PHZ100-210915-
1036 AM HST Wed Jan 20 2021

.Synopsis for Hawaiian coastal waters...
High pressure far northeast of the islands will support moderate
to locally strong trades through Friday. The high will strengthen
over the weekend, potentially leading to even stronger east-
southeast trade winds.

$$

PHZ110-210915-
Kauai Northwest Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 5 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 9 to 11 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 6 to 8 feet. Scattered showers.

$$

PHZ111-210915-
Kauai Windward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 9 to 10 feet.
Northwest swell 9 to 11 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 6 to 8 feet. Scattered showers.

$$

PHZ112-210915-
Kauai Leeward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 10 to 12 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 6 to 8 feet. Scattered showers.

$$

PHZ113-210915-
Kauai Channel-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. North
swell 7 feet. Scattered showers late in the morning, then
isolated showers in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 9 feet. Northwest
swell 9 to 10 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 9 to 10 feet. Northwest
swell 6 to 8 feet. Scattered showers.

$$

PHZ114-210915-
Oahu Windward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 10 to 11 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 7 to 9 feet. Scattered showers.

$$

PHZ115-210915-
Oahu Leeward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. North
swell 6 feet. Scattered showers late in the morning, then
isolated showers in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell
5 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. Northwest swell
3 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 7 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 6 to 7 feet.
Northwest swell 8 to 9 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 7 to 8 feet. Northwest
swell 5 to 7 feet. Scattered showers.

$$

PHZ116-210915-
Kaiwi Channel-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. North
swell 7 feet. Scattered showers late in the morning, then
isolated showers in the afternoon.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 7 feet. North swell
4 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 8 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 9 to 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 10 to 11 feet.
Northwest swell 6 to 8 feet. Scattered showers.

$$

PHZ117-210915-
Maui County Windward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 8 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 9 to 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 6 to 8 feet. Scattered showers.

$$

PHZ118-210915-
Maui County Leeward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. North
swell 6 feet. Isolated showers.
.TONIGHT...Northeast winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
4 feet. Isolated showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 3 feet. Scattered showers.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. North swell
3 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 7 feet. Northwest
swell 6 to 7 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 9 to 10 feet. Northwest
swell 4 to 6 feet. Isolated showers.

$$

PHZ119-210915-
Maalaea Bay-
1036 AM HST Wed Jan 20 2021

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

.REST OF TODAY...North winds to 25 knots. Wind waves 2 feet or
less.
.TONIGHT...North winds to 25 knots. Wind waves 3 feet.
.THURSDAY...North winds to 25 knots. Wind waves 2 feet or less.
Isolated showers.
.THURSDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
Isolated showers.
.FRIDAY...North winds to 25 knots. Wind waves 3 feet. Isolated
showers.
.FRIDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
Isolated showers.
.SATURDAY...North winds to 25 knots. Wind waves 3 feet. Isolated
showers.
.SUNDAY...North winds to 30 knots. Wind waves 4 feet. Isolated
showers.

$$

PHZ120-210915-
Pailolo Channel-
1036 AM HST Wed Jan 20 2021

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

.REST OF TODAY...East winds to 25 knots. Wind waves 5 feet. North
swell 6 feet. Isolated showers late in the morning, then
scattered showers in the afternoon.
.TONIGHT...East winds to 25 knots. Wind waves 5 feet. North swell
5 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 6 feet. North
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 5 feet.
North swell 4 feet. Isolated showers.
.FRIDAY...East winds to 25 knots. Wind waves 6 feet. North swell
3 feet. Isolated showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 6 feet.
Northwest swell 5 feet. Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves 8 to 9 feet.
Northwest swell 6 feet. Isolated showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 4 to 6 feet. Isolated showers.

$$

PHZ121-210915-
Alenuihaha Channel-
1036 AM HST Wed Jan 20 2021

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

.REST OF TODAY...East winds to 25 knots. Wind waves 6 feet. North
swell 7 feet. Isolated showers through the day.
.TONIGHT...East winds to 25 knots. Wind waves 7 feet. North swell
6 feet. Isolated showers.
.THURSDAY...East winds to 25 knots. Wind waves 7 feet. North
swell 5 feet. Isolated showers.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 6 feet increasing to 8 feet after midnight.
Isolated showers.
.SATURDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 8 to 9 feet. Isolated showers.
.SUNDAY...East winds to 30 knots. Wind waves 10 to 11 feet.
Northwest swell 6 to 8 feet. Isolated showers.

$$

PHZ122-210915-
Big Island Windward Waters-
1036 AM HST Wed Jan 20 2021

.REST OF TODAY...East winds 15 knots. Wind waves 5 feet. North
swell 7 feet. Scattered showers.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. North swell
5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 5 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet increasing to 8 feet after midnight. Scattered
showers.
.SATURDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 8 to 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 7 to 9 feet. Scattered showers.

$$

PHZ123-210915-
Big Island Leeward Waters-
1036 AM HST Wed Jan 20 2021

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

.REST OF TODAY...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
7 feet. Northwest swell 5 feet. Scattered showers late in the
morning, then slight chance of thunderstorms and isolated showers
in the afternoon.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
8 feet. Northwest swell 3 feet. Scattered showers.
.FRIDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers.
.FRIDAY NIGHT...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 8 feet.
Northwest swell 4 feet increasing to 6 feet after midnight.
Isolated showers.
.SATURDAY...West of the Big Island, winds variable less than
10 knots becoming northwest 10 knots in the afternoon and
evening, then becoming variable less than 10 knots after
midnight. Near South Point, east winds to 25 knots. Wind waves
9 feet. Northwest swell 6 to 7 feet. Isolated showers.
.SUNDAY...West of the Big Island, northwest winds 10 knots
becoming variable less than 10 knots. Near South Point, east
winds to 25 knots. Wind waves 9 feet. Northwest swell 5 to
7 feet. Scattered showers.

$$

PHZ124-210915-
Big Island Southeast Waters-
1036 AM HST Wed Jan 20 2021

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

.REST OF TODAY...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 6 feet. Scattered showers.
.TONIGHT...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds to 25 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 8 to 9 feet.
Northwest swell 5 to 7 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 8 to 9 feet.
Northwest swell 5 to 7 feet. Scattered showers.

$$

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



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