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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

563
FZHW50 PHFO 190700
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
900 PM HST Tue Feb 18 2020

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

PHZ100-191930-
900 PM HST Tue Feb 18 2020

.Synopsis for Hawaiian coastal waters...
A strong high northwest of the area will move east over the next
few days. The high will produce strong easterly trade winds, with
gales in areas where the wind accelerates around the islands. Over
the weekend, winds will weaken and shift out of the southeast as
a front approaches.

$$

PHZ110-191930-
Kauai Northwest Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 30 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East winds to 30 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds to 30 knots. Wind waves 10 feet.
Northwest swell 5 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 7 feet. Northwest
swell 5 feet. Scattered showers.
.SATURDAY...Southeast winds 15 knots. Wind waves 6 feet.
Northwest swell 4 to 6 feet. Isolated showers.
.SUNDAY...South winds 10 knots in the morning becoming variable
less than 10 knots, then becoming north 15 knots after midnight.
Wind waves 4 to 5 feet. Northwest swell 3 to 4 feet. Isolated
showers.

$$

PHZ111-191930-
Kauai Windward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 11 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 15 knots. Wind waves 8 feet. Northwest swell
3 feet. Scattered showers.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 7 feet. Northwest
swell 5 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 to 6 feet. Scattered showers.
.SUNDAY...Southeast winds 10 knots becoming variable less than
10 knots, then becoming northwest 15 knots after midnight. Wind
waves 4 to 6 feet. Northwest swell 3 to 4 feet. Scattered
showers.

$$

PHZ112-191930-
Kauai Leeward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...East winds to 30 knots. Wind waves 10 feet.
Northwest swell 3 feet. Isolated showers through the day.
.WEDNESDAY NIGHT...East winds to 30 knots. Wind waves 11 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.THURSDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
3 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 5 feet. Isolated showers in the evening, then scattered
showers after midnight.
.SATURDAY...East winds 10 knots. Wind waves 5 feet. Northwest
swell 4 to 6 feet. Isolated showers.
.SUNDAY...Winds variable less than 10 knots becoming north
10 knots. Wind waves 4 feet. Northwest swell 3 to 4 feet.
Isolated showers.

$$

PHZ113-191930-
Kauai Channel-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...Northeast winds to 30 knots. Wind waves
9 feet. Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds to 30 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 30 knots. Wind waves
11 feet. Northwest swell 4 feet. Isolated showers in the evening,
then scattered showers after midnight.
.THURSDAY...East winds to 25 knots. Wind waves 11 feet. Northwest
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers in the evening, then scattered
showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 to 5 feet. Isolated showers.
.SUNDAY...East winds 10 knots in the morning becoming variable
less than 10 knots, then becoming north 15 knots after midnight.
Wind waves 4 to 5 feet. Northwest swell 3 to 4 feet. Isolated
showers.

$$

PHZ114-191930-
Oahu Windward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 11 feet.
Northwest swell 5 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 12 feet. Northwest
swell 5 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 5 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 7 feet. Northwest
swell 5 to 6 feet. Scattered showers.
.SUNDAY...Southeast winds 15 knots veering west after midnight.
Wind waves 4 to 6 feet. Northwest swell 4 to 5 feet. Scattered
showers.

$$

PHZ115-191930-
Oahu Leeward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
9 feet. Northwest swell 3 feet early in the evening. Isolated
showers.
.WEDNESDAY...Northeast winds to 30 knots. Wind waves 9 feet.
Northwest swell 3 feet in the afternoon. Isolated showers in the
afternoon.
.WEDNESDAY NIGHT...Northeast winds to 30 knots. Wind waves
10 feet. Northwest swell 4 feet. Isolated showers.
.THURSDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 4 feet. Isolated showers.
.FRIDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 4 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 4 to 5 feet.
Northwest swell 3 to 5 feet. Isolated showers.
.SUNDAY...Winds variable less than 10 knots becoming northwest
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 3 feet.
Isolated showers.

$$

PHZ116-191930-
Kaiwi Channel-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...Northeast winds to 30 knots. Wind waves
9 feet. Northwest swell 3 feet. Isolated showers.
.WEDNESDAY...Northeast winds to 30 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 30 knots. Wind waves
12 feet. Northwest swell 4 feet. Isolated showers in the evening,
then scattered showers after midnight.
.THURSDAY...East winds to 30 knots. Wind waves 12 feet. Northwest
swell 4 feet. Isolated showers.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 4 feet. Isolated showers in the evening, then
scattered showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 9 feet. Northwest swell
4 feet. Isolated showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Isolated showers in the evening, then scattered
showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 7 feet. Northwest
swell 4 to 5 feet. Isolated showers.
.SUNDAY...Northeast winds 20 knots becoming south 10 knots in the
afternoon and evening, then veering southwest after midnight.
Wind waves 4 to 6 feet. Northwest swell 3 to 4 feet. Isolated
showers.

$$

PHZ117-191930-
Maui County Windward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East winds to 25 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 11 feet.
Northwest swell 4 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 12 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 9 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 9 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 8 feet. Northwest
swell 4 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 to 5 feet. Scattered showers.
.SUNDAY...Southeast winds 15 knots. Wind waves 5 to 7 feet.
Northwest swell 4 feet. Scattered showers.

$$

PHZ118-191930-
Maui County Leeward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...Northeast winds to 25 knots. Wind waves
8 feet. Isolated showers.
.WEDNESDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds to 25 knots. Wind waves
10 feet. Northwest swell 3 feet. Isolated showers through the
night.
.THURSDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 3 feet. Isolated showers through the day.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers through the night.
.FRIDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 feet. Isolated showers through the day.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 3 feet. Isolated showers through the night.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.
.SUNDAY...North winds 10 knots in the morning becoming variable
less than 10 knots, then becoming east 10 knots in the evening
backing north. Wind waves 3 to 4 feet. Northwest swell 3 feet.
Isolated showers.

$$

PHZ119-191930-
Maalaea Bay-
900 PM HST Tue Feb 18 2020

...GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...Northeast winds to 30 knots. Wind waves
3 feet.
.WEDNESDAY...North gales to 35 knots. Wind waves 4 feet.
.WEDNESDAY NIGHT...Northeast gales to 35 knots. Wind waves
4 feet.
.THURSDAY...North gales to 35 knots. Wind waves 4 feet.
.THURSDAY NIGHT...North winds to 25 knots. Wind waves 4 feet.
.FRIDAY...North winds to 25 knots. Wind waves 3 feet.
.FRIDAY NIGHT...North winds to 25 knots. Wind waves 3 feet.
.SATURDAY...North winds 20 knots. Wind waves 3 feet.
.SUNDAY...North winds 10 knots becoming variable less than
10 knots. Wind waves 2 feet or less.

$$

PHZ120-191930-
Pailolo Channel-
900 PM HST Tue Feb 18 2020

...GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...East winds to 30 knots. Wind waves 8 feet.
Scattered showers.
.WEDNESDAY...East gales to 35 knots. Wind waves 9 feet. Scattered
showers.
.WEDNESDAY NIGHT...East gales to 35 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers in the evening, then
isolated showers after midnight.
.THURSDAY...East winds to 30 knots. Wind waves 11 feet. Northwest
swell 3 feet. Scattered showers.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers in the evening, then
isolated showers after midnight.
.FRIDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Scattered showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Scattered showers in the evening, then
isolated showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 6 to 7 feet.
Northwest swell 3 feet. Isolated showers.
.SUNDAY...South winds 10 knots backing east in the evening, then
becoming variable less than 10 knots after midnight. Wind waves
3 to 5 feet. Northwest swell 3 feet. Isolated showers.

$$

PHZ121-191930-
Alenuihaha Channel-
900 PM HST Tue Feb 18 2020

...GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...East winds to 30 knots. Wind waves 10 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY...East gales to 35 knots. Wind waves 12 feet.
Northwest swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East gales to 35 knots. Wind waves 13 feet.
Northwest swell 3 feet. Isolated showers in the evening.
Scattered showers after midnight.
.THURSDAY...East gales to 35 knots. Wind waves 13 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds to 30 knots. Wind waves 11 feet.
Northwest swell 4 feet. Isolated showers in the evening.
Scattered showers after midnight.
.FRIDAY...East winds to 25 knots. Wind waves 9 feet. Northwest
swell 4 feet. Scattered showers.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers in the evening.
Scattered showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 7 to 8 feet.
Northwest swell 4 to 5 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves 5 to 7 feet. Northwest
swell 3 to 4 feet. Isolated showers.

$$

PHZ122-191930-
Big Island Windward Waters-
900 PM HST Tue Feb 18 2020

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

.REST OF TONIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 3 feet. Isolated showers through the night.
.WEDNESDAY...East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds to 25 knots. Wind waves 10 feet. Northwest
swell 4 feet. Scattered showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 8 feet.
Northwest swell 4 feet. Scattered showers.
.FRIDAY...East winds 20 knots. Wind waves 8 feet. Northwest swell
4 feet. Scattered showers.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Northwest
swell 3 feet. Scattered showers.
.SATURDAY...East winds 20 knots. Wind waves 7 feet. Northwest
swell 4 to 5 feet. Scattered showers.
.SUNDAY...Southeast winds 15 knots. Wind waves 5 to 7 feet.
Northwest swell 4 feet. Scattered showers.

$$

PHZ123-191930-
Big Island Leeward Waters-
900 PM HST Tue Feb 18 2020

...GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...Winds variable less than 10 knots west of the
Big Island...east to 30 knots near South Point. Wind waves
10 feet.
.WEDNESDAY...West of the Big Island, winds variable less than
10 knots becoming west 10 knots in the afternoon. Near South
Point, east gales to 35 knots. Wind waves 12 feet. Isolated
showers in the afternoon.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east gales to 35 knots near South Point. Wind waves
13 feet. Northwest swell 3 feet after midnight. Isolated showers
after midnight.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east gales to 35 knots near South Point. Wind waves
13 feet. Northwest swell 3 feet. Isolated showers in the
afternoon.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
10 feet. Northwest swell 3 feet. Isolated showers after midnight.
.FRIDAY...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. Isolated showers in the afternoon.
.FRIDAY 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 after midnight. Isolated showers after
midnight.
.SATURDAY...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.
.SUNDAY...West of the Big Island, winds variable less than
10 knots becoming north 10 knots in the evening, then becoming
variable less than 10 knots after midnight. Near South Point,
east winds 10 knots. Wind waves 4 to 6 feet. Northwest swell
3 feet. Isolated showers.

$$

PHZ124-191930-
Big Island Southeast Waters-
900 PM HST Tue Feb 18 2020

...GALE WARNING IN EFFECT THROUGH THURSDAY AFTERNOON...

.REST OF TONIGHT...Northeast winds to 30 knots. Wind waves
11 feet. Isolated showers after midnight.
.WEDNESDAY...Northeast gales to 35 knots. Wind waves 12 feet.
Scattered showers.
.WEDNESDAY NIGHT...Northeast gales to 35 knots. Wind waves
12 feet. Isolated showers in the evening, then scattered showers
after midnight.
.THURSDAY...Northeast winds to 30 knots. Wind waves 13 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves
11 feet. Northwest swell 3 feet. Isolated showers in the evening,
then scattered showers after midnight.
.FRIDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Scattered showers.
.FRIDAY NIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 3 feet. Isolated showers in the evening, then
scattered showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 8 feet. Northwest
swell 3 feet. Scattered showers.
.SUNDAY...East winds 15 knots. Wind waves 4 to 6 feet. Northwest
swell 3 feet. Isolated showers.

$$

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



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