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Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters

272
FZHW50 PHFO 191336
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
336 AM HST Wed Dec 19 2018

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

PHZ100-200245-
336 AM HST Wed Dec 19 2018

.Synopsis for Hawaiian coastal waters...
Strong northeast winds along and behind a cold front will
continue through tonight. High pressure will build well to the
north of the islands on Thursday, shifting the winds around to a
more typical east-northeasterly trade wind direction. A large
north-northwest swell in addition to the strong winds, will make
for hazardous boating conditions through Thursday. Moderate to
locally strong easterly trades are then expected across the marine
area late in the work week through early next week, with the
strongest winds in the typically windier waters around Maui and
the Big Island.

$$

PHZ110-200245-
Kauai Northwest Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 13 feet decreasing to 11 feet in the afternoon.
Isolated showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 9 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 6 feet. North
swell 9 feet.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 6 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 4 feet. North swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 4 to 5 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves 6 feet. Northwest swell
4 to 5 feet. Scattered showers.

$$

PHZ111-200245-
Kauai Windward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 13 feet decreasing to 11 feet in the afternoon. Isolated
showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 9 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 6 feet. North
swell 8 feet.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 6 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 5 feet. North swell
5 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 to 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 to 5 feet. Scattered showers.

$$

PHZ112-200245-
Kauai Leeward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 11 feet.
.TONIGHT...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 9 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet. North
swell 8 feet.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 6 feet.
.FRIDAY...East winds 15 knots. Wind waves 5 feet. North swell
6 feet.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet.
.SATURDAY...East winds 10 knots rising to 20 knots after
midnight. Wind waves 5 feet. Northwest swell 4 to 5 feet.
.SUNDAY...East winds 15 knots. Wind waves 5 to 6 feet. Northwest
swell 4 to 5 feet. Scattered showers.

$$

PHZ113-200245-
Kauai Channel-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 10 feet.
Northwest swell 13 feet decreasing to 11 feet in the afternoon.
Isolated showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 9 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet. North
swell 8 feet.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet. North
swell 6 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 5 feet. North swell
5 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 4 to 5 feet.
.SUNDAY...East winds 20 knots. Wind waves 6 feet. Northwest swell
4 to 5 feet. Isolated showers.

$$

PHZ114-200245-
Oahu Windward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 12 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. North swell
9 feet.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Northwest swell 7 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 5 feet. North swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 6 feet. Isolated showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
5 feet. Scattered showers.

$$

PHZ115-200245-
Oahu Leeward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 10 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 9 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet.
Northwest swell 8 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 6 feet.
Northwest swell 6 feet.
.FRIDAY...East winds 15 knots. Wind waves 4 feet. North swell
5 feet.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Northwest
swell 5 feet.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 4 feet.
.SUNDAY...East winds 20 knots. Wind waves 5 to 6 feet. Northwest
swell 4 feet. Isolated showers.

$$

PHZ116-200245-
Kaiwi Channel-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 12 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 10 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet. North
swell 8 feet.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 7 feet. Isolated showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. North
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 7 to 8 feet. Northwest
swell 4 to 5 feet. Isolated showers.

$$

PHZ117-200245-
Maui County Windward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 12 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet.
.THURSDAY...East winds 15 knots. Wind waves 6 feet. Northwest
swell 9 feet.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Northwest swell 7 feet. Isolated showers after midnight.
.FRIDAY...East winds 20 knots. Wind waves 5 feet. North swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
4 to 5 feet. Scattered showers.

$$

PHZ118-200245-
Maui County Leeward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 8 feet. Isolated showers through the day.
.TONIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 7 feet.
.THURSDAY...Northeast winds 20 knots. Wind waves 7 feet. North
swell 6 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 6 feet.
North swell 5 feet.
.FRIDAY...Northeast winds 10 knots. Wind waves 5 feet. North
swell 4 feet.
.FRIDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
North swell 4 feet.
.SATURDAY...Northeast winds 15 knots. Wind waves 5 to 6 feet.
Northwest swell 3 to 4 feet.
.SUNDAY...Northeast winds 15 knots. Wind waves 6 feet. Northwest
swell 3 feet.

$$

PHZ119-200245-
Maalaea Bay-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 30 knots. Wind waves 4 feet.
.TONIGHT...Northeast winds to 25 knots. Wind waves 4 feet.
.THURSDAY...Northeast winds to 25 knots. Wind waves 3 feet.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 3 feet.
.FRIDAY...Northeast winds to 25 knots. Wind waves 3 feet in the
morning then 2 feet or less.
.FRIDAY NIGHT...Northeast winds to 25 knots. Wind waves 3 feet.
.SATURDAY...Northeast winds to 25 knots. Wind waves 3 feet.
.SUNDAY...Northeast winds to 25 knots. Wind waves 3 to 4 feet.

$$

PHZ120-200245-
Pailolo Channel-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 9 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.TONIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 8 feet.
.THURSDAY...Northeast winds to 30 knots. Wind waves 6 feet.
Northwest swell 7 feet.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 5 feet.
Northwest swell 6 feet. Isolated showers after midnight.
.FRIDAY...East winds to 25 knots. Wind waves 4 feet. North swell
5 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 5 feet. North
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds to 25 knots. Wind waves 5 feet. Northwest
swell 4 feet.
.SUNDAY...East winds to 25 knots. Wind waves 7 feet. Northwest
swell 3 to 4 feet. Isolated showers.

$$

PHZ121-200245-
Alenuihaha Channel-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 11 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.TONIGHT...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 10 feet.
.THURSDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 9 feet.
.THURSDAY NIGHT...East winds to 25 knots. Wind waves 8 feet.
Northwest swell 7 feet. Isolated showers after midnight.
.FRIDAY...East winds to 25 knots. Wind waves 7 feet. North swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds to 25 knots. Wind waves 7 feet. North
swell 5 feet. Isolated showers after midnight.
.SATURDAY...East winds to 25 knots. Wind waves 7 to 8 feet.
Northwest swell 5 feet.
.SUNDAY...East winds to 30 knots. Wind waves 9 feet. Northwest
swell 4 to 5 feet. Isolated showers.

$$

PHZ122-200245-
Big Island Windward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 12 feet. Scattered showers.
.TONIGHT...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 10 feet. Isolated showers.
.THURSDAY...East winds 15 knots. Wind waves 7 feet. Northwest
swell 9 feet. Isolated showers in the morning.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Northwest swell 8 feet. Isolated showers after midnight.
.FRIDAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...East winds 20 knots. Wind waves 5 feet. Northwest
swell 6 feet. Isolated showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 6 feet. Northwest
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
5 feet. Scattered showers.

$$

PHZ123-200245-
Big Island Leeward Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...West of the Big Island, north winds 15 knots becoming
northeast to 25 knots in the afternoon. Near South Point, east
winds 10 knots. Wind waves 8 feet. Northwest swell 7 feet.
Isolated showers.
.TONIGHT...West of the Big Island, south winds 15 knots backing
northeast after midnight. Near South Point, east winds 20 knots.
Wind waves 9 feet. Northwest swell 7 feet. Isolated showers.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 feet.
Northwest swell 6 feet. Isolated showers in the morning.
.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 5 feet.
.FRIDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 7 feet.
Northwest swell 4 feet.
.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 3 feet.
.SATURDAY...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.
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 9 to
10 feet. Northwest swell 3 feet.

$$

PHZ124-200245-
Big Island Southeast Waters-
336 AM HST Wed Dec 19 2018

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

.TODAY...Northeast winds 20 knots. Wind waves 6 feet. Northwest
swell 9 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.TONIGHT...Northeast winds 20 knots. Wind waves 8 feet. Northwest
swell 8 feet. Isolated showers.
.THURSDAY...Northeast winds to 25 knots. Wind waves 9 feet.
Northwest swell 7 feet. Isolated showers in the morning.
.THURSDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 7 feet. Isolated showers after midnight.
.FRIDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Northwest swell 6 feet. Isolated showers in the morning.
.FRIDAY NIGHT...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 5 feet. Isolated showers after midnight.
.SATURDAY...Northeast winds to 25 knots. Wind waves 8 feet.
Northwest swell 4 to 5 feet. Isolated showers.
.SUNDAY...Northeast winds to 25 knots. Wind waves 9 to 10 feet.
Northwest swell 4 feet. Scattered showers.

$$

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



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