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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

111
FZHW50 PHFO 210138
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
338 PM HST Mon May 20 2019

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

PHZ100-211415-
338 PM HST Mon May 20 2019

.Synopsis for Hawaiian coastal waters...
A surface high northeast of the waters will build northeastward
as a cold front approaches the state from the northwest. The
front is expected to stall and dissipate northwest of the island
chain Tuesday and Tuesday night, while the high far northeast of
the waters strengthens and persists through rest of the week.

$$

PHZ110-211415-
Kauai Northwest Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Winds variable less than 10 knots becoming southeast
10 knots after midnight. Wind waves 4 feet. Scattered showers.
.TUESDAY...Winds variable less than 10 knots. Wind waves 3 feet.
Scattered showers.
.TUESDAY NIGHT...Winds variable less than 10 knots becoming
northeast 10 knots after midnight. Wind waves 3 feet. Scattered
showers in the evening, then isolated showers after midnight.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet in the afternoon. Isolated showers in the morning,
then scattered showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...Southeast winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Northwest swell 3 feet after midnight. Isolated showers in the
evening, then scattered showers after midnight.
.FRIDAY...East winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 3 to 5 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 5 feet. Mixed swell
northwest 4 to 5 feet and south 3 feet. Isolated showers.

$$

PHZ111-211415-
Kauai Windward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 10 knots. Wind waves 4 feet. Scattered
showers.
.TUESDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 4 feet. Scattered
showers.
.TUESDAY NIGHT...Winds variable less than 10 knots becoming east
10 knots after midnight. Wind waves 3 feet. Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. Northwest
swell 3 feet in the afternoon. Scattered showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...Southeast winds 15 knots. Wind waves 4 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Scattered showers.
.FRIDAY...East winds 10 knots. Wind waves 4 to 5 feet. Northwest
swell 3 to 5 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 5 feet. Mixed swell
northwest 4 to 5 feet and south 3 feet. Isolated showers.

$$

PHZ112-211415-
Kauai Leeward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Winds variable less than 10 knots. Wind waves 3 feet.
Scattered showers.
.TUESDAY...Winds variable less than 10 knots. Wind waves 3 feet
in the morning then 2 feet or less. Scattered showers.
.TUESDAY NIGHT...Winds variable less than 10 knots becoming
northeast 10 knots after midnight. Wind waves 2 feet or less.
Scattered showers in the evening, then isolated showers after
midnight.
.WEDNESDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 3 feet in the afternoon. Isolated showers in the morning,
then scattered showers in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 knots. Wind waves 3 feet.
Northwest swell 3 feet. Isolated showers.
.THURSDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 3 feet. Northwest swell
3 feet. Scattered showers in the morning, then isolated showers
in the afternoon.
.THURSDAY NIGHT...Winds variable less than 10 knots becoming east
10 knots after midnight. Wind waves 3 feet. Northwest swell
3 feet after midnight. Isolated showers.
.FRIDAY...East winds 10 knots in the morning becoming variable
less than 10 knots. Wind waves 3 feet. Northwest swell 3 to
5 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 4 feet. Mixed swell
northwest 5 feet and south 3 feet. Isolated showers.

$$

PHZ113-211415-
Kauai Channel-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 10 knots. Wind waves 3 feet. Scattered
showers in the evening, then isolated showers after midnight.
.TUESDAY...Winds variable less than 10 knots. Wind waves 3 feet.
Isolated showers.
.TUESDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
Isolated showers through the night.
.WEDNESDAY...East winds 10 knots. Wind waves 4 feet. Isolated
showers through the day.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Northwest swell 3 feet after midnight. Isolated showers.
.THURSDAY...East winds 10 knots. Wind waves 4 feet. Northwest
swell 3 feet in the morning. Isolated showers through the day.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Isolated showers.
.FRIDAY...East winds 10 knots in the morning becoming variable
less than 10 knots, then becoming east 10 knots. Wind waves 4 to
5 feet. Northwest swell 3 to 4 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 5 feet. Mixed swell
northwest 4 to 5 feet and south 3 feet. Isolated showers.

$$

PHZ114-211415-
Oahu Windward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 15 knots. Wind waves 5 feet. Scattered
showers.
.TUESDAY...East winds 10 knots. Wind waves 4 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 10 knots. Wind waves 5 feet.
Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet. Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. Northwest swell
3 to 4 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 5 feet. Mixed swell
northwest 4 to 5 feet and south 3 feet. Isolated showers.

$$

PHZ115-211415-
Oahu Leeward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Winds variable less than 10 knots. Wind waves 3 feet.
Isolated showers through the night.
.TUESDAY...Winds variable less than 10 knots. Wind waves 3 feet.
Isolated showers through the day.
.TUESDAY NIGHT...North winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. Isolated
showers in the evening.
.WEDNESDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 2 feet or less. Isolated
showers in the afternoon.
.WEDNESDAY NIGHT...East winds 10 knots in the evening becoming
variable less than 10 knots. Wind waves 3 feet. Isolated showers
in the evening.
.THURSDAY...Winds variable less than 10 knots. Wind waves 3 feet.
Isolated showers in the afternoon.
.THURSDAY NIGHT...Winds variable less than 10 knots becoming
southeast 10 knots after midnight. Wind waves 3 feet. Isolated
showers.
.FRIDAY...Winds variable less than 10 knots. Wind waves 3 feet.
Mixed swell northwest 3 to 4 feet and south 3 feet. Isolated
showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Mixed swell
northwest 4 feet and south 3 feet. Isolated showers.

$$

PHZ116-211415-
Kaiwi Channel-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 15 knots. Wind waves 5 feet. Isolated
showers through the night.
.TUESDAY...Southeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 4 feet. Isolated showers
through the day.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Swell
south 3 feet. Scattered showers through the night.
.WEDNESDAY...East winds 15 knots. Wind waves 5 feet. Swell south
3 feet. Scattered showers in the morning. Isolated showers in the
afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 5 feet. Swell
south 3 feet. Isolated showers through the night.
.THURSDAY...Northeast winds 15 knots. Wind waves 5 feet. Swell
south 3 feet. Isolated showers through the day.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Isolated showers.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. Mixed swell
northwest 3 to 4 feet and south 3 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Mixed swell
northwest 4 feet and south 3 to 4 feet. Isolated showers.

$$

PHZ117-211415-
Maui County Windward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 15 knots. Wind waves 5 feet. Scattered
showers.
.TUESDAY...Southeast winds 15 knots. Wind waves 5 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.WEDNESDAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers in the morning, then isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Scattered showers.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. Northwest swell
3 to 4 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Mixed swell
northwest 4 feet and southwest 3 feet. Isolated showers.

$$

PHZ118-211415-
Maui County Leeward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 10 knots. Wind waves 4 feet. Isolated
showers in the evening.
.TUESDAY...Southwest winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 4 feet. Swell south
3 feet. Isolated showers in the afternoon.
.TUESDAY NIGHT...Winds variable less than 10 knots becoming
southeast 10 knots after midnight. Wind waves 3 feet. Swell south
3 feet. Isolated showers in the evening.
.WEDNESDAY...East winds 10 knots. Wind waves 3 feet. Swell south
3 feet.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves 3 feet. Swell
south 3 feet. Isolated showers in the evening.
.THURSDAY...North winds 10 knots. Wind waves 3 feet. Swell south
3 feet. Isolated showers in the afternoon.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 3 feet. Swell
south 3 feet. Isolated showers.
.FRIDAY...Northeast winds 10 knots backing north in the afternoon
and evening, then veering east after midnight. Wind waves 3 to
4 feet. Mixed swell northwest 3 feet and south 3 feet. Isolated
showers.
.SATURDAY...East winds 10 knots backing northeast. Wind waves
4 feet. Mixed swell northwest 3 feet and south 3 to 4 feet.

$$

PHZ119-211415-
Maalaea Bay-
338 PM HST Mon May 20 2019

.TONIGHT...North winds 15 knots in the evening becoming variable
less than 10 knots. Wind waves 2 feet or less.
.TUESDAY...Winds variable less than 10 knots. Wind waves 2 feet
or less. Isolated showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 2 feet or less.
.WEDNESDAY...North winds 15 knots. Wind waves 2 feet or less.
.WEDNESDAY NIGHT...North winds 15 knots. Wind waves 2 feet or
less.
.THURSDAY...North winds 15 knots. Wind waves 2 feet or less.
.THURSDAY NIGHT...North winds 10 knots. Wind waves 2 feet or
less.
.FRIDAY...North winds 10 knots. Wind waves 2 feet or less.
.SATURDAY...North winds 10 knots. Wind waves 2 feet or less.

$$

PHZ120-211415-
Pailolo Channel-
338 PM HST Mon May 20 2019

.TONIGHT...North winds 10 knots veering east after midnight. Wind
waves 4 feet. Scattered showers in the evening. Isolated showers
after midnight.
.TUESDAY...Winds variable less than 10 knots becoming north
10 knots in the afternoon. Wind waves 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Scattered showers in the evening. Isolated showers after
midnight.
.WEDNESDAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers.
.WEDNESDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Scattered showers in the evening. Isolated showers after
midnight.
.THURSDAY...East winds 15 knots. Wind waves 4 feet. Isolated
showers.
.THURSDAY NIGHT...East winds 10 knots. Wind waves 4 feet.
Isolated showers in the evening. Scattered showers after
midnight.
.FRIDAY...East winds 10 knots. Wind waves 5 feet. Isolated
showers.
.SATURDAY...East winds 10 knots. Wind waves 4 to 5 feet. Mixed
swell northwest 3 feet and south 3 feet. Isolated showers.

$$

PHZ121-211415-
Alenuihaha Channel-
338 PM HST Mon May 20 2019

.TONIGHT...East winds 15 knots. Wind waves 5 feet. Scattered
showers in the evening. Isolated showers after midnight.
.TUESDAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 5 feet. Scattered
showers in the morning. Isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 5 feet.
Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 5 feet. Isolated
showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Scattered showers in the evening. Isolated showers after
midnight.
.FRIDAY...East winds 15 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 feet and south 3 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 6 feet. Mixed swell
northwest 3 to 4 feet and south 3 feet. Isolated showers.

$$

PHZ122-211415-
Big Island Windward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Southeast winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet in the evening. Scattered showers in the evening,
then isolated showers after midnight.
.TUESDAY...Southeast winds 15 knots. Wind waves 5 feet. Isolated
showers through the day.
.TUESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers in the evening, then isolated showers after
midnight.
.WEDNESDAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers.
.WEDNESDAY NIGHT...East winds 15 knots. Wind waves 5 feet.
Scattered showers.
.THURSDAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 15 knots. Wind waves 6 feet.
Scattered showers.
.FRIDAY...East winds 15 knots. Wind waves 6 to 7 feet. Mixed
swell northwest 3 feet and south 3 feet. Scattered showers.
.SATURDAY...East winds 15 knots. Wind waves 5 to 6 feet. Mixed
swell northwest 3 to 4 feet and south 3 feet. Scattered showers.

$$

PHZ123-211415-
Big Island Leeward Waters-
338 PM HST Mon May 20 2019

.TONIGHT...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet.
Scattered showers in the evening. Isolated showers after
midnight.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet.
Isolated showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers in the evening.
.THURSDAY...Winds variable less than 10 knots west of the Big
Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers.
.THURSDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 6 feet.
Isolated showers.
.FRIDAY...West of the Big Island, northwest winds 10 knots
becoming variable less than 10 knots. Near South Point, east
winds 15 knots. Wind waves 6 feet. Swell south 3 feet. Isolated
showers.
.SATURDAY...West of the Big Island, winds variable less than
10 knots becoming west 10 knots in the afternoon, then becoming
variable less than 10 knots. Near South Point, east winds
15 knots. Wind waves 7 feet. Mixed swell northwest 3 feet and
south 3 feet. Isolated showers.

$$

PHZ124-211415-
Big Island Southeast Waters-
338 PM HST Mon May 20 2019

.TONIGHT...East winds 15 knots. Wind waves 6 feet. Scattered
showers in the evening, then isolated showers after midnight.
.TUESDAY...East winds 15 knots. Wind waves 5 feet. Isolated
showers.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Swell
south 3 feet. Scattered showers in the evening, then isolated
showers after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 6 feet. Isolated
showers in the morning.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Scattered showers.
.THURSDAY...East winds 20 knots. Wind waves 6 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Scattered showers in the evening, then isolated showers after
midnight.
.FRIDAY...East winds 15 knots. Wind waves 6 feet. Swell south
3 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 7 feet. Mixed swell
northwest 3 feet and south 3 feet. Isolated showers.

$$

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



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