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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

846
FZHW50 PHFO 210717
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
917 PM HST Wed Jan 20 2021

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

PHZ100-211945-
917 PM 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 and this will further increase east southeast
winds from strong to near gale force magnitudes.

$$

PHZ110-211945-
Kauai Northwest Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 15 knots. Wind waves 4 feet. North
swell 5 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Isolated showers
through the day.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 11 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 11 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 10 to 12 feet.
Northwest swell 3 to 4 feet. Scattered showers.

$$

PHZ111-211945-
Kauai Windward Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 15 knots. Wind waves 5 feet. North
swell 5 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. Isolated showers in the evening, then
scattered showers after midnight.
.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 7 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 11 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 10 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 10 to 12 feet.
Northwest swell 3 to 5 feet. Scattered showers.

$$

PHZ112-211945-
Kauai Leeward Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Isolated showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Isolated showers through the day.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet increasing to 6 feet in the afternoon. Isolated showers in
the morning.
.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 12 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 7 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds 20 knots. Wind waves 9 to 11 feet. Northwest
swell 3 to 5 feet. Scattered showers.

$$

PHZ113-211945-
Kauai Channel-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
5 feet. Isolated showers through the day.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 feet. Isolated showers through the day.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 8 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 9 to 10 feet. Northwest
swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 10 to 12 feet. North
swell 3 to 5 feet. Scattered showers.

$$

PHZ114-211945-
Oahu Windward Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.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 7 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 11 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 11 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 7 to 9 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 11 to 13 feet.
Northwest swell 4 to 6 feet. Scattered showers.

$$

PHZ115-211945-
Oahu Leeward Waters-
917 PM HST Wed Jan 20 2021

.REST OF 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 in the morning.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 4 feet.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. Northwest swell
3 feet.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 7 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 7 feet.
Northwest swell 8 feet. Scattered showers.
.SUNDAY...East winds 20 knots. Wind waves 7 to 8 feet. Northwest
swell 5 to 7 feet. Scattered showers.
.MONDAY...East winds 20 knots. Wind waves 8 to 9 feet. Northwest
swell 3 to 4 feet. Scattered showers.

$$

PHZ116-211945-
Kaiwi Channel-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 5 feet. Isolated showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
5 feet. Isolated showers through the day.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 4 feet. Isolated showers in the evening. Scattered showers
after midnight.
.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 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 10 to 11 feet.
Northwest swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 11 to 13 feet. North
swell 3 to 5 feet. Scattered showers.

$$

PHZ117-211945-
Maui County Windward Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 5 feet. Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 7 feet. Northwest 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 feet. Northwest
swell 10 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 6 to 8 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 11 to 13 feet.
Northwest swell 3 to 5 feet. Scattered showers.

$$

PHZ118-211945-
Maui County Leeward Waters-
917 PM HST Wed Jan 20 2021

.REST OF 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 in the morning.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 3 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. North swell
3 feet.
.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 7 feet. Scattered showers.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves 8 feet.
Northwest swell 7 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 9 to 11 feet. Northwest
swell 4 to 6 feet. Isolated showers.
.MONDAY...East winds to 25 knots. Wind waves 10 to 12 feet.
Northwest swell 3 to 4 feet. Isolated showers.

$$

PHZ119-211945-
Maalaea Bay-
917 PM HST Wed Jan 20 2021

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

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

$$

PHZ120-211945-
Pailolo Channel-
917 PM HST Wed Jan 20 2021

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 5 feet.
North swell 5 feet. Isolated showers early in the evening.
Scattered showers after midnight.
.THURSDAY...East winds to 25 knots. Wind waves 6 feet. North
swell 4 feet. Scattered showers in the morning. Isolated showers
in the afternoon.
.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 feet. Northwest
swell 6 feet. Isolated showers.
.SATURDAY NIGHT...East winds to 30 knots. Wind waves 9 feet.
Northwest swell 6 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 4 to 6 feet. Isolated showers.
.MONDAY...East winds to 25 knots. Wind waves 9 to 11 feet.
Northwest swell 3 feet. Isolated showers.

$$

PHZ121-211945-
Alenuihaha Channel-
917 PM HST Wed Jan 20 2021

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 7 feet.
North swell 5 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. Isolated showers.
.FRIDAY...East winds to 25 knots. Wind waves 8 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 30 knots. Wind waves 9 feet. Northwest
swell 9 feet. Isolated showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 9 feet. Isolated showers.
.SUNDAY...East winds to 30 knots. Wind waves 10 to 11 feet.
Northwest swell 6 to 8 feet. Isolated showers.
.MONDAY...East winds to 30 knots. Wind waves 11 to 12 feet.
Northwest swell 3 to 5 feet. Isolated showers.

$$

PHZ122-211945-
Big Island Windward Waters-
917 PM HST Wed Jan 20 2021

.REST OF TONIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. North swell
5 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 5 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. Northwest swell
4 feet. Isolated 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 7 feet. Northwest
swell 9 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 10 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 7 to 9 feet. Scattered showers.
.MONDAY...East winds to 30 knots easing to 20 knots. Wind waves
9 to 11 feet. Northwest swell 4 to 6 feet. Scattered showers.

$$

PHZ123-211945-
Big Island Leeward Waters-
917 PM HST Wed Jan 20 2021

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

.REST OF 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. Haze. Isolated 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. Haze. 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. Haze. Isolated 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 in the morning. Haze
through the day.
.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. Haze.
Isolated showers.
.SATURDAY...West of the Big Island, winds variable less than
10 knots becoming north 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 9 feet. Northwest swell
7 feet. Haze. Isolated showers.
.SATURDAY NIGHT...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 9 feet.
Northwest swell 7 feet. Haze. 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 to 10 feet. Northwest swell 5 to
7 feet. Haze. Scattered showers.
.MONDAY...West of the Big Island, winds variable less than
10 knots becoming northeast 10 knots in the evening, then
becoming variable less than 10 knots after midnight. Near South
Point, east winds to 25 knots. Wind waves 10 to 11 feet.
Northwest swell 3 to 5 feet. Haze. Scattered showers.

$$

PHZ124-211945-
Big Island Southeast Waters-
917 PM HST Wed Jan 20 2021

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 5 feet. Isolated showers early in the evening,
then scattered showers after midnight.
.THURSDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 5 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
Northwest swell 4 feet. Isolated showers.
.FRIDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 3 feet. Isolated showers through the day.
.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 feet. Northwest
swell 7 feet. Scattered showers.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 7 feet. Scattered showers.
.SUNDAY...East winds to 25 knots. Wind waves 8 to 9 feet.
Northwest swell 5 to 7 feet. Scattered showers.
.MONDAY...East winds to 25 knots. Wind waves 10 to 11 feet.
Northwest swell 3 to 5 feet. Scattered showers.

$$

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



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