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National Weather Service Marine Forecast FZHW50 PHFO

FZHW50 PHFO 180132
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
332 PM HST Mon May 17 2021

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

PHZ100-181430-
332 PM HST Mon May 17 2021

Synopsis for Hawaiian coastal waters

High pressure north of the area will shift eastward through the
week. A weakness in the ridge may form later in the week as a
cold front passes far north of the area.



PHZ110-181430-
Kauai Northwest Waters-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet. Scattered showers.

THURSDAY
East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

THURSDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet in the evening. Scattered showers.

FRIDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers. 



PHZ111-181430-
Kauai Windward Waters-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

THURSDAY
East winds 15 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet in the evening. Scattered showers.

FRIDAY
East winds 15 knots. Wind waves 5 feet. Scattered
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Scattered
showers. 



PHZ112-181430-
Kauai Leeward Waters-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers.

WEDNESDAY
East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet. Isolated showers.

THURSDAY
East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Northwest swell 3 feet in the evening. Isolated showers.

FRIDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers. 



PHZ113-181430-
Kauai Channel-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 6 feet. Isolated
showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Isolated
showers.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet. Isolated
showers.

WEDNESDAY
East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Isolated showers.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers.

THURSDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Isolated showers.

FRIDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers. 



PHZ114-181430-
Oahu Windward Waters-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

THURSDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Scattered showers.

FRIDAY
East winds 20 knots. Wind waves 5 to 6 feet. Scattered
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Scattered
showers. 



PHZ115-181430-
Oahu Leeward Waters-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING


TONIGHT
East winds to 25 knots. Wind waves 7 feet. Isolated
showers.

TUESDAY
East winds 20 knots. Wind waves 7 feet. Isolated
showers through the day.

TUESDAY NIGHT
East winds 15 knots. Wind waves 5 feet. Isolated
showers.

WEDNESDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers through the day.

WEDNESDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Isolated showers.

THURSDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers through the day.

THURSDAY NIGHT
East winds 15 knots. Wind waves 4 feet.
Isolated showers.

FRIDAY
East winds 15 knots. Wind waves 4 to 5 feet. Isolated
showers.

SATURDAY
East winds 10 knots. Wind waves 4 to 5 feet. Isolated
showers. 



PHZ116-181430-
Kaiwi Channel-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING


TONIGHT
East winds to 25 knots. Wind waves 7 feet. Northwest
swell 3 feet. Isolated showers.

TUESDAY
East winds 20 knots. Wind waves 7 feet. Northwest
swell 3 feet. Isolated showers.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Isolated showers.

THURSDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Isolated showers.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Isolated showers.

FRIDAY
East winds 20 knots. Wind waves 5 to 6 feet. Isolated
showers.

SATURDAY
East winds 15 knots. Wind waves 5 to 6 feet. Isolated
showers. 



PHZ117-181430-
Maui County Windward Waters-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING


TONIGHT
East winds to 25 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers.

TUESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

TUESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Northwest swell 3 feet. Scattered showers.

THURSDAY
East winds 20 knots. Wind waves 6 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

THURSDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Scattered showers.

FRIDAY
East winds 20 knots. Wind waves 5 to 6 feet. Scattered
showers.

SATURDAY
East winds 15 knots. Wind waves 5 to 6 feet.
Scattered showers. 



PHZ118-181430-
Maui County Leeward Waters-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY TUESDAY MORNING


TONIGHT
East winds 20 knots. Wind waves 8 feet. Isolated
showers through the night.

TUESDAY
East winds 20 knots. Wind waves 7 feet. Isolated
showers through the day.

TUESDAY NIGHT
East winds 15 knots. Wind waves 6 feet. Isolated
showers through the night.

WEDNESDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers through the day.

WEDNESDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Isolated showers through the night.

THURSDAY
East winds 15 knots. Wind waves 5 feet. Isolated
showers through the day.

THURSDAY NIGHT
Northeast winds 15 knots. Wind waves 5 feet.
Isolated showers through the night.

FRIDAY
East winds 15 knots. Wind waves 4 to 5 feet. Isolated
showers.

SATURDAY
East winds 15 knots. Wind waves 4 to 5 feet. Isolated
showers. 



PHZ119-181430-
Maalaea Bay-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON


TONIGHT
North winds to 25 knots. Wind waves 3 feet.

TUESDAY
North winds to 25 knots. Wind waves 3 feet.

TUESDAY NIGHT
North winds to 25 knots. Wind waves 3 feet in
the evening then 2 feet or less.

WEDNESDAY
North winds to 25 knots. Wind waves 2 feet or less
then 3 feet in the afternoon.

WEDNESDAY NIGHT
North winds to 25 knots. Wind waves 3 feet.

THURSDAY
North winds to 25 knots. Wind waves 3 feet.

THURSDAY NIGHT
North winds 20 knots. Wind waves 3 feet.

FRIDAY
North winds 20 knots. Wind waves 3 feet.

SATURDAY
North winds 20 knots. Wind waves 2 feet or less.
Isolated showers. 



PHZ120-181430-
Pailolo Channel-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON


TONIGHT
East winds to 25 knots. Wind waves 6 feet. Isolated
showers.

TUESDAY
East winds to 25 knots. Wind waves 6 feet. Isolated
showers through the day.

TUESDAY NIGHT
East winds to 25 knots. Wind waves 6 feet.
Isolated showers.

WEDNESDAY
East winds to 25 knots. Wind waves 5 feet. Isolated
showers through the day.

WEDNESDAY NIGHT
East winds to 25 knots. Wind waves 5 feet.
Isolated showers.

THURSDAY
East winds to 25 knots. Wind waves 5 feet. Isolated
showers through the day.

THURSDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Isolated showers.

FRIDAY
East winds 20 knots. Wind waves 5 feet. Isolated
showers.

SATURDAY
East winds 20 knots. Wind waves 5 feet. Isolated
showers. 



PHZ121-181430-
Alenuihaha Channel-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON


TONIGHT
East winds to 25 knots. Wind waves 9 feet. Northwest
swell 3 feet after midnight. Isolated showers.

TUESDAY
East winds to 25 knots. Wind waves 8 feet. Northwest
swell 3 feet. Isolated showers.

TUESDAY NIGHT
East winds to 25 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers.

WEDNESDAY
East winds to 25 knots. Wind waves 7 feet. Isolated
showers.

WEDNESDAY NIGHT
East winds to 25 knots. Wind waves 7 feet.
Northwest swell 3 feet. Isolated showers.

THURSDAY
East winds to 25 knots. Wind waves 6 feet. Northwest
swell 3 feet in the morning. Isolated showers.

THURSDAY NIGHT
East winds 20 knots. Wind waves 6 feet.
Isolated showers.

FRIDAY
East winds 20 knots. Wind waves 6 feet. Isolated
showers.

SATURDAY
East winds 20 knots. Wind waves 6 to 7 feet.
Scattered showers. 



PHZ122-181430-
Big Island Windward Waters-
332 PM HST Mon May 17 2021

TONIGHT
East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers.

TUESDAY
East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

TUESDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet. Scattered showers.

WEDNESDAY
East winds 20 knots. Wind waves 5 feet. Northwest
swell 3 feet in the afternoon. Scattered showers in the morning,
then isolated showers in the afternoon.

WEDNESDAY NIGHT
East winds 20 knots. Wind waves 5 feet.
Northwest swell 3 feet. Scattered showers.

THURSDAY
East winds 15 knots. Wind waves 5 feet. Northwest
swell 3 feet. Scattered showers in the morning, then isolated
showers in the afternoon.

THURSDAY NIGHT
East winds 15 knots. Wind waves 5 feet.
Scattered showers.

FRIDAY
East winds 15 knots. Wind waves 5 feet. Scattered
showers.

SATURDAY
East winds 15 knots. Wind waves 5 feet. Scattered
showers. 



PHZ123-181430-
Big Island Leeward Waters-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON


TONIGHT
West of the Big Island, northwest winds 10 knots
veering east after midnight. Near South Point, east winds to
25 knots. Wind waves 8 feet. Isolated showers.

TUESDAY
West of the Big Island, winds variable less than
10 knots becoming west 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 8 feet. Isolated
showers in the morning.

TUESDAY NIGHT
West of the Big Island, winds variable less than
10 knots becoming north 10 knots after midnight. Near South
Point, east winds to 25 knots. Wind waves 7 feet. Isolated
showers.

WEDNESDAY
West of the Big Island, winds variable less than
10 knots becoming northwest 10 knots in the afternoon. Near South
Point, east winds to 25 knots. Wind waves 7 feet. Isolated
showers in the morning.

WEDNESDAY NIGHT
Winds variable less than 10 knots west of the
Big Island...east to 25 knots near South Point. Wind waves
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 7 feet.
Isolated showers in the morning.

THURSDAY NIGHT
Winds variable less than 10 knots west of the
Big Island...east 20 knots near South Point. Wind waves 7 feet.
Isolated showers.

FRIDAY
West of the Big Island, winds variable less than
10 knots becoming north 10 knots after midnight. Near South
Point, east winds 20 knots. Wind waves 6 to 7 feet. Isolated
showers.

SATURDAY
West of the Big Island, winds variable less than
10 knots becoming south 10 knots in the evening, then veering
north after midnight. Near South Point, east winds 20 knots. Wind
waves 6 to 7 feet. Scattered showers. 



PHZ124-181430-
Big Island Southeast Waters-
332 PM HST Mon May 17 2021

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON


TONIGHT
Northeast winds to 25 knots. Wind waves 8 feet.
Scattered showers.

TUESDAY
East winds to 25 knots. Wind waves 7 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

TUESDAY NIGHT
East winds to 25 knots. Wind waves 7 feet.
Scattered showers.

WEDNESDAY
East winds to 25 knots. Wind waves 7 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT
Northeast winds to 25 knots. Wind waves
7 feet. Scattered showers.

THURSDAY
East winds to 25 knots. Wind waves 7 feet. Scattered
showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT
Northeast winds 20 knots. Wind waves 7 feet.
Scattered showers.

FRIDAY
Northeast winds 20 knots. Wind waves 6 to 7 feet.
Isolated showers.

SATURDAY
East winds 20 knots. Wind waves 6 to 7 feet.
Scattered showers.