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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

921
FZHW50 PHFO 011946
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
946 AM HST Thu Oct 1 2020

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

PHZ100-020830-
946 AM HST Thu Oct 1 2020

.Synopsis for Hawaiian coastal waters...
A nearly stationary front to the northwest of the islands along
with a southeastern trough will maintain light to gentle trades
through Friday. This trough will keep the chance for isolated
showers and storms around and focused south and west of Maui and
the Big Island the next couple of days. More moderate trade flow
is forecast this weekend.


$$

PHZ110-020830-
Kauai Northwest Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
2 feet or less. North swell 6 feet. Isolated showers.
.TONIGHT...Winds variable less than 10 knots. Wind waves 2 feet
or less. North swell 8 feet. Isolated showers through the night.
.FRIDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. North swell 8 feet. Isolated showers through the day.
.FRIDAY NIGHT...Winds variable less than 10 knots. Wind waves
2 feet or less. North swell 7 feet. Isolated showers in the
evening, then scattered showers after midnight.
.SATURDAY...Winds variable less than 10 knots. Wind waves 2 feet
or less. North swell 6 feet. Scattered showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less.
North swell 6 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves 3 to 4 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 6 to 7 feet. Northwest
swell 3 to 4 feet. Isolated showers.

$$

PHZ111-020830-
Kauai Windward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
2 feet or less. North swell 6 feet. Isolated showers.
.TONIGHT...Winds variable less than 10 knots. Wind waves 2 feet
or less. North swell 8 feet. Isolated showers through the night.
.FRIDAY...Winds variable less than 10 knots. Wind waves 2 feet or
less. North swell 8 feet. Isolated showers through the day.
.FRIDAY NIGHT...Winds variable less than 10 knots. Wind waves
2 feet or less. North swell 6 feet. Isolated showers in the
evening, then scattered showers after midnight.
.SATURDAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.SATURDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
North swell 5 feet. Isolated showers.
.SUNDAY...East winds 10 knots. Wind waves 3 to 5 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 10 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ112-020830-
Kauai Leeward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
2 feet or less. North swell 6 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers through the night.
.FRIDAY...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. North
swell 7 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Scattered showers.
.SATURDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
North swell 6 feet. Scattered showers in the evening. Slight
chance of thunderstorms through the night. Isolated heavy showers
after midnight.
.SUNDAY...East winds 15 knots...east 10 knots in the Kaulakahi
Channel. Wind waves 3 to 4 feet. North swell 4 to 5 feet.
Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 5 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ113-020830-
Kauai Channel-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Northeast winds 10 knots. Wind waves 2 feet or
less. North swell 6 feet.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers through the night.
.FRIDAY...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Isolated showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less.
North swell 5 feet. Isolated showers and slight chance of
thunderstorms.
.SUNDAY...Northeast winds 10 knots becoming east 20 knots after
midnight. Wind waves 3 to 5 feet. North swell 4 to 5 feet.
Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ114-020830-
Oahu Windward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Northeast winds 10 knots. Wind waves 2 feet or
less. North swell 7 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers through the night.
.FRIDAY...Northeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 2 feet or less. North
swell 8 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Isolated showers.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 6 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves 4 to 6 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 10 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ115-020830-
Oahu Leeward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Northeast winds 10 knots. Wind waves 2 feet or
less. North swell 6 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
Northwest swell 6 feet. Isolated showers through the night.
.FRIDAY...Southeast winds 10 knots. Wind waves 2 feet or less.
Northwest swell 7 feet. Isolated showers in the morning, then
scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Scattered showers in the evening. Slight chance of
thunderstorms through the night. Isolated showers after midnight.
.SATURDAY...Winds variable less than 10 knots. Wind waves 2 feet
or less. North swell 5 feet. Isolated showers and slight chance
of thunderstorms.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less
then 3 feet after midnight. North swell 5 feet. Slight chance of
thunderstorms and isolated showers through the night.
.SUNDAY...East winds 10 knots becoming northeast 20 knots. Wind
waves 4 feet. North swell 4 to 5 feet.
.MONDAY...Northeast winds 15 knots. Wind waves 4 feet. Northwest
swell 3 to 4 feet.

$$

PHZ116-020830-
Kaiwi Channel-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Northeast winds 10 knots. Wind waves 2 feet or
less. North swell 6 feet. Isolated showers.
.TONIGHT...Northeast winds 10 knots. Wind waves 2 feet or less.
North swell 6 feet. Isolated showers.
.FRIDAY...South winds 10 knots. Wind waves 2 feet or less. North
swell 7 feet. Isolated showers.
.FRIDAY NIGHT...Southeast winds 10 knots. Wind waves 2 feet or
less. North swell 7 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 2 feet or less.
North swell 6 feet. Isolated showers.
.SATURDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
North swell 5 feet. Isolated showers.
.SUNDAY...East winds 15 knots. Wind waves 4 to 6 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 7 feet. North swell
3 to 4 feet. Isolated showers.

$$

PHZ117-020830-
Maui County Windward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...East winds 15 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers and thunderstorms.
.TONIGHT...Southeast winds 20 knots. Wind waves 2 feet or less.
North swell 6 feet. Isolated showers.
.FRIDAY...Southeast winds 15 knots. Wind waves 2 feet or less.
North swell 7 feet. Scattered showers.
.FRIDAY NIGHT...Southeast winds 10 knots. Wind waves 2 feet or
less. North swell 7 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Isolated showers through the day.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers through the night.
.SUNDAY...East winds 15 knots. Wind waves 4 to 6 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 10 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet. Isolated showers.

$$

PHZ118-020830-
Maui County Leeward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...North winds 10 knots. Wind waves 2 feet or less.
North swell 5 feet. Isolated showers.
.TONIGHT...North winds 10 knots. Wind waves 2 feet or less. North
swell 5 feet. Isolated showers.
.FRIDAY...South winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Scattered showers.
.FRIDAY NIGHT...Southeast winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. North
swell 5 feet. Isolated showers through the night. Slight chance
of thunderstorms after midnight.
.SATURDAY...Winds variable less than 10 knots. Wind waves 2 feet
or less. North swell 5 feet. Slight chance of thunderstorms in
the morning. Isolated showers through the day.
.SATURDAY NIGHT...Northeast winds 10 knots. Wind waves 4 feet.
North swell 4 feet. Isolated showers.
.SUNDAY...Northeast winds 10 knots. Wind waves 4 feet. North
swell 3 to 4 feet.
.MONDAY...Northeast winds 10 knots. Wind waves 5 feet. North
swell 3 feet.

$$

PHZ119-020830-
Maalaea Bay-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Winds variable less than 10 knots. Wind waves
2 feet or less. Isolated showers.
.TONIGHT...South winds 10 knots. Wind waves 2 feet or less.
Isolated showers.
.FRIDAY...Southwest winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 2 feet or less. Isolated
showers in the morning, then scattered showers in the afternoon.
.FRIDAY NIGHT...Winds variable less than 10 knots. Wind waves
2 feet or less. Isolated showers in the evening.
.SATURDAY...North winds 20 knots. Wind waves 2 feet or less.
.SATURDAY NIGHT...North winds 20 knots. Wind waves 2 feet or
less.
.SUNDAY...North winds 20 knots. Wind waves 2 feet or less.
.MONDAY...North winds 20 knots easing to 10 knots after midnight.
Wind waves 2 feet or less.

$$

PHZ120-020830-
Pailolo Channel-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...East winds 15 knots. Wind waves 2 feet or less.
Northwest swell 6 feet. Isolated showers.
.TONIGHT...South winds 10 knots. Wind waves 2 feet or less.
Northwest swell 5 feet. Isolated showers.
.FRIDAY...West winds 10 knots. Wind waves 2 feet or less.
Northwest swell 7 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. Northwest
swell 6 feet. Isolated showers.
.SATURDAY...East winds 20 knots. Wind waves 2 feet or less. North
swell 5 feet. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 4 to 5 feet. Northwest
swell 3 to 5 feet. Isolated showers.
.MONDAY...East winds 15 knots. Wind waves 7 feet. Northwest swell
3 feet. Isolated showers.

$$

PHZ121-020830-
Alenuihaha Channel-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...East winds 10 knots. Wind waves 2 feet or less.
North swell 6 feet. Isolated showers and thunderstorms.
.TONIGHT...South winds 10 knots. Wind waves 2 feet or less. North
swell 6 feet. Isolated showers in the evening. Isolated
thunderstorms through the night. Scattered showers after
midnight.
.FRIDAY...Southeast winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated thunderstorms in the morning.
Scattered showers through the day.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 2 feet or less.
North swell 7 feet. Slight chance of thunderstorms in the
evening. Isolated showers through the night.
.SATURDAY...East winds 20 knots. Wind waves 3 feet. North swell
6 feet. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 20 knots. Wind waves 4 feet. North
swell 5 feet. Isolated showers.
.SUNDAY...East winds 20 knots. Wind waves 6 to 7 feet. North
swell 4 to 5 feet.
.MONDAY...East winds 20 knots. Wind waves 7 feet. Northwest swell
3 to 4 feet.

$$

PHZ122-020830-
Big Island Windward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Southeast winds 20 knots. Wind waves 3 feet.
North swell 6 feet. Isolated showers and thunderstorms.
.TONIGHT...Southeast winds 20 knots. Wind waves 3 feet in the
evening then 2 feet or less. North swell 6 feet. Isolated showers
in the evening. Isolated thunderstorms through the night.
Scattered showers after midnight.
.FRIDAY...Southeast winds 15 knots. Wind waves 2 feet or less.
North swell 7 feet. Scattered showers and isolated thunderstorms
in the morning, then isolated showers in the afternoon.
.FRIDAY NIGHT...East winds 10 knots. Wind waves 2 feet or less.
North swell 7 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 3 feet. North swell
6 feet. Isolated showers in the morning.
.SATURDAY NIGHT...East winds 15 knots. Wind waves 3 feet. North
swell 5 feet. Isolated showers through the night.
.SUNDAY...Northeast winds 15 knots. Wind waves 5 to 6 feet. North
swell 4 to 5 feet. Isolated showers.
.MONDAY...East winds 10 knots. Wind waves 7 feet. North swell
3 to 4 feet. Isolated showers.

$$

PHZ123-020830-
Big Island Leeward Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Winds variable less than 10 knots west of the
Big Island...east 15 knots near South Point. Wind waves 2 feet or
less. Northwest swell 3 feet. Isolated showers and thunderstorms.
.TONIGHT...Southeast winds 20 knots. Wind waves 2 feet or less
then 3 feet after midnight. Northwest swell 3 feet. Isolated
showers in the evening. Isolated thunderstorms through the night.
Scattered showers after midnight.
.FRIDAY...North winds 10 knots west of the Big Island...east
20 knots near South Point. Wind waves 3 feet. Northwest swell
4 feet. Scattered heavy showers and slight chance of
thunderstorms.
.FRIDAY NIGHT...West of the Big Island, north winds 10 knots in
the evening becoming variable less than 10 knots. Near South
Point, east winds 15 knots. Wind waves 3 feet. Northwest swell
4 feet. Scattered showers and slight chance of thunderstorms in
the evening, then isolated showers after midnight.
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 3 feet.
Northwest swell 3 feet. Isolated showers.
.SATURDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers.
.SUNDAY...West of the Big Island, northwest winds 10 knots in the
morning becoming variable less than 10 knots, then becoming
northwest 10 knots after midnight. Near South Point, east winds
20 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated
showers.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 7 feet.
Isolated showers.

$$

PHZ124-020830-
Big Island Southeast Waters-
946 AM HST Thu Oct 1 2020

.REST OF TODAY...Southeast winds 15 knots. Wind waves 3 feet.
North swell 6 feet. Isolated showers and thunderstorms.
.TONIGHT...Southeast winds 15 knots. Wind waves 3 feet. Northwest
swell 6 feet. Isolated showers in the evening. Isolated
thunderstorms through the night. Scattered showers after
midnight.
.FRIDAY...East winds 20 knots. Wind waves 3 feet. Northwest swell
6 feet. Scattered heavy showers and slight chance of
thunderstorms.
.FRIDAY NIGHT...East winds 15 knots. Wind waves 3 feet. Northwest
swell 6 feet. Slight chance of thunderstorms in the evening.
Isolated showers through the night.
.SATURDAY...East winds 20 knots. Wind waves 3 feet. Northwest
swell 5 feet. Isolated showers in the morning.
.SATURDAY NIGHT...Northeast winds 20 knots. Wind waves 5 feet.
Northwest swell 5 feet. Isolated showers through the night.
.SUNDAY...Northeast winds 20 knots. Wind waves 7 feet. Northwest
swell 4 feet. Isolated showers.
.MONDAY...Northeast winds 15 knots. Wind waves 7 to 8 feet.
Northwest swell 3 to 4 feet. Isolated showers.

$$

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



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