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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

268
FZHW50 PHFO 181947
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
947 AM HST Fri Sep 18 2020

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

PHZ100-190830-
947 AM HST Fri Sep 18 2020

.Synopsis for Hawaiian coastal waters...
Trade winds will strengthen over the next couple of days in
response to building high pressure northeast of the islands.
Locally strong trades are expected through the weekend over the
typically windier channels surrounding Maui County and the Big
Island.

$$

PHZ110-190830-
Kauai Northwest Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 20 knots. Wind waves 4 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 20 knots. Wind waves 4 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 5 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 to 5 feet. North
swell 3 feet. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Isolated showers.

$$

PHZ111-190830-
Kauai Windward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Scattered showers.

$$

PHZ112-190830-
Kauai Leeward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
North swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 to 5 feet. North
swell 3 feet. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers.

$$

PHZ113-190830-
Kauai Channel-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. North swell
3 feet in the afternoon. Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
North swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
North swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 to 5 feet. North
swell 3 feet. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers.

$$

PHZ114-190830-
Oahu Windward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 15 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet in the afternoon. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 4 feet. Scattered
showers.

$$

PHZ115-190830-
Oahu Leeward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers late in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet after midnight. Isolated showers after
midnight.
.SUNDAY...Northeast winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
3 feet. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 3 feet.

$$

PHZ116-190830-
Kaiwi Channel-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 5 feet. North swell
3 feet in the afternoon. Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
North swell 3 feet. Isolated showers after midnight.
.SUNDAY...Northeast winds 20 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
North swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Isolated showers.
.TUESDAY...East winds 15 knots. Wind waves 3 to 4 feet. Isolated
showers.

$$

PHZ117-190830-
Maui County Windward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. Northwest
swell 3 feet in the afternoon. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. Northwest swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 3 feet. Scattered
showers.

$$

PHZ118-190830-
Maui County Leeward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 20 knots. Wind waves 6 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 20 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Isolated
showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 3 to 4 feet. Isolated
showers.
.TUESDAY...East winds 15 knots. Wind waves 3 feet.

$$

PHZ119-190830-
Maalaea Bay-
947 AM HST Fri Sep 18 2020

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

.REST OF TODAY...North winds to 25 knots. Wind waves 3 feet.
.TONIGHT...North winds to 25 knots. Wind waves 3 feet in the
evening then 2 feet or less.
.SATURDAY...North winds to 25 knots. Wind waves 2 feet or less.
.SATURDAY NIGHT...North winds to 25 knots. Wind waves 2 feet or
less.
.SUNDAY...North winds to 25 knots. Wind waves 2 feet or less.
.SUNDAY NIGHT...North winds 20 knots. Wind waves 3 feet in the
evening then 2 feet or less.
.MONDAY...North winds 20 knots. Wind waves 2 feet or less.
.TUESDAY...North winds 20 knots. Wind waves 2 feet or less.

$$

PHZ120-190830-
Pailolo Channel-
947 AM HST Fri Sep 18 2020

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

.REST OF TODAY...East winds to 25 knots. Wind waves 5 feet.
Isolated showers late in the morning.
.TONIGHT...East winds to 25 knots. Wind waves 5 feet. Isolated
showers after midnight.
.SATURDAY...East winds to 25 knots. Wind waves 5 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 5 feet.
Isolated showers after midnight.
.SUNDAY...East winds to 25 knots. Wind waves 4 feet. North swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 20 knots. Wind waves 5 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 4 feet. North swell
3 feet. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 3 feet. Isolated
showers.

$$

PHZ121-190830-
Alenuihaha Channel-
947 AM HST Fri Sep 18 2020

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

.REST OF TODAY...East winds to 25 knots. Wind waves 7 feet.
Isolated showers late in the morning.
.TONIGHT...East winds to 25 knots. Wind waves 7 feet. Isolated
showers after midnight.
.SATURDAY...East winds to 25 knots. Wind waves 7 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...East winds to 25 knots. Wind waves 7 feet.
North swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds to 25 knots. Wind waves 7 feet. North swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 20 knots. Wind waves 7 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 20 knots. Wind waves 5 to 6 feet. North
swell 3 feet. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 4 to 5 feet. Isolated
showers.

$$

PHZ122-190830-
Big Island Windward Waters-
947 AM HST Fri Sep 18 2020

.REST OF TODAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers late in the morning.
.TONIGHT...East winds 15 knots. Wind waves 4 feet. Isolated
showers after midnight.
.SATURDAY...East winds 20 knots. Wind waves 4 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 4 feet. North
swell 3 feet. Isolated showers after midnight.
.SUNDAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
3 feet. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 15 knots. Wind waves 5 feet. North
swell 3 feet. Isolated showers after midnight.
.MONDAY...East winds 15 knots. Wind waves 4 feet. North swell
3 feet. Scattered showers.
.TUESDAY...East winds 15 knots. Wind waves 3 to 4 feet. North
swell 3 feet. Scattered showers.

$$

PHZ123-190830-
Big Island Leeward Waters-
947 AM HST Fri Sep 18 2020

...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. Isolated showers late in the morning.
.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 7 feet.
Isolated showers after midnight.
.SATURDAY...West of the Big Island, winds variable less than
10 knots becoming southwest 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 7 feet. Isolated
showers in the morning.
.SATURDAY NIGHT...West of the Big Island, northwest winds
10 knots in the evening becoming variable less than 10 knots.
Near South Point, northeast winds to 25 knots. Wind waves 7 feet.
Isolated showers after midnight.
.SUNDAY...Winds variable less than 10 knots west of the Big
Island...east to 25 knots near South Point. Wind waves 7 feet.
Isolated showers in the morning.
.SUNDAY NIGHT...West of the Big Island, south winds 10 knots in
the evening becoming variable less than 10 knots. Near South
Point, east winds 20 knots. Wind waves 7 feet. Isolated showers
after midnight.
.MONDAY...West of the Big Island, north winds 10 knots backing
south in the afternoon, then becoming variable less than
10 knots. Near South Point, east winds 15 knots. Wind waves 5 to
6 feet. Isolated showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet.
Isolated showers.

$$

PHZ124-190830-
Big Island Southeast Waters-
947 AM HST Fri Sep 18 2020

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

.REST OF TODAY...East winds to 25 knots. Wind waves 7 feet.
Isolated showers late in the morning.
.TONIGHT...Northeast winds to 25 knots. Wind waves 7 feet.
Isolated showers after midnight.
.SATURDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds to 25 knots. Wind waves 6 feet.
Isolated showers after midnight.
.SUNDAY...Northeast winds to 25 knots. Wind waves 7 feet.
Isolated showers in the morning.
.SUNDAY NIGHT...Northeast winds 20 knots. Wind waves 7 feet.
North swell 3 feet. Isolated showers after midnight.
.MONDAY...Northeast winds 20 knots. Wind waves 5 to 6 feet. North
swell 3 feet. Isolated showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 5 feet. North
swell 3 feet. Isolated showers.

$$

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



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