National Weather Service United States Department of Commerce

SYNOPSIS FOR HAWAIIAN COASTAL WATERS
Nov 20, 2018 3:43 am HST

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Synopsis for Hawaiian coastal waters:
High pressure will strengthen north of the area through midweek, then shift east and weaken as a front passes to the north Thursday night through Friday night.


Kauai Northwest Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 6 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 25 knots. Wind waves 8 feet. Northwest swell 4 feet. Scattered showers.

WEDNESDAY:
East winds to 25 knots. Wind waves 7 feet. North swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

THURSDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet in the morning. Scattered showers.

THURSDAY NIGHT:
Southeast winds 15 knots. Wind waves 7 feet. Isolated showers.

FRIDAY:
East winds 10 knots. Wind waves 5 feet. Scattered showers.

SATURDAY:
East winds 15 knots in the morning becoming variable less than 10 knots. Wind waves 5 feet. Northwest swell 4 to 6 feet. Scattered showers.


Kauai Windward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 6 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 25 knots. Wind waves 8 feet. Northwest swell 4 feet. Scattered showers.

WEDNESDAY:
East winds to 25 knots. Wind waves 8 feet. North swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers in the evening, then showers likely after midnight.

THURSDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

THURSDAY NIGHT:
Southeast winds 15 knots. Wind waves 7 feet. Scattered showers.

FRIDAY:
East winds 10 knots. Wind waves 6 feet. Scattered showers.

SATURDAY:
East winds 10 knots. Wind waves 5 to 6 feet. Northwest swell 4 to 6 feet. Scattered showers.


Kauai Leeward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 8 feet. Northwest swell 5 feet. Scattered showers in the morning.

TONIGHT:
East winds to 30 knots. Wind waves 8 feet. Northwest swell 4 feet. Scattered showers in the evening, then isolated showers after midnight.

WEDNESDAY:
East winds to 30 knots. Wind waves 9 feet. Northwest swell 4 feet. Isolated showers in the morning.

WEDNESDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Isolated showers.

THURSDAY:
East winds 15 knots. Wind waves 7 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 10 knots. Wind waves 6 feet. Isolated showers through the night.

FRIDAY:
East winds 10 knots. Wind waves 4 feet. Scattered showers.

SATURDAY:
East winds 10 knots becoming variable less than 10 knots. Wind waves 3 feet. Northwest swell 4 to 6 feet. Isolated showers.


Kauai Channel-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 30 knots. Wind waves 8 feet. North swell 4 feet. Isolated showers.

WEDNESDAY:
East winds to 30 knots. Wind waves 8 feet. North swell 4 feet. Isolated showers in the morning.

WEDNESDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers in the evening, then isolated showers after midnight.

THURSDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 15 knots. Wind waves 7 feet. Isolated showers.

FRIDAY:
East winds 10 knots. Wind waves 5 feet. Isolated showers.

SATURDAY:
Northeast winds 10 knots. Wind waves 4 to 5 feet. Northwest swell 4 to 6 feet. Isolated showers.


Oahu Windward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 6 feet. Northwest swell 6 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 30 knots. Wind waves 8 feet. Northwest swell 5 feet. Scattered showers.

WEDNESDAY:
East winds to 30 knots. Wind waves 8 feet. North swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 8 feet. North swell 3 feet. Showers likely in the evening, then scattered showers after midnight.

THURSDAY:
East winds 20 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers.

FRIDAY:
East winds 15 knots. Wind waves 6 feet. Showers likely.

SATURDAY:
East winds 15 knots. Wind waves 5 to 6 feet. Northwest swell 4 to 6 feet. Scattered showers.


Oahu Leeward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Isolated showers in the morning.

TONIGHT:
East winds to 25 knots. Wind waves 8 feet. Northwest swell 4 feet. Isolated showers through the night.

WEDNESDAY:
East winds to 30 knots. Wind waves 9 feet. Northwest swell 4 feet. Isolated showers in the morning.

WEDNESDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Isolated showers in the evening, then scattered showers after midnight.

THURSDAY:
East winds 15 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 10 knots. Wind waves 5 feet. Isolated showers after midnight.

FRIDAY:
Northeast winds 10 knots in the morning becoming variable less than 10 knots, then becoming northeast 10 knots. Wind waves 4 feet. Isolated showers.

SATURDAY:
East winds 10 knots becoming variable less than 10 knots. Wind waves 3 to 4 feet. Northwest swell 3 to 5 feet. Isolated showers.


Kaiwi Channel-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 30 knots. Wind waves 7 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 30 knots. Wind waves 8 feet. North swell 5 feet. Scattered showers.

WEDNESDAY:
East winds to 30 knots. Wind waves 9 feet. North swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers.

THURSDAY:
East winds 20 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers in the evening. Isolated showers after midnight.

FRIDAY:
East winds 15 knots. Wind waves 6 feet. North swell 3 feet. Scattered showers.

SATURDAY:
East winds 15 knots. Wind waves 5 to 6 feet. Northwest swell 3 to 5 feet. Isolated showers.


Maui County Windward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 25 knots. Wind waves 6 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
East winds to 25 knots. Wind waves 8 feet. Northwest swell 5 feet. Scattered showers.

WEDNESDAY:
East winds to 25 knots. Wind waves 8 feet. North swell 4 feet. Scattered showers.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 9 feet. North swell 4 feet. Scattered showers.

THURSDAY:
East winds to 25 knots. Wind waves 10 feet. North swell 3 feet. Scattered showers.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Showers likely.

FRIDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Showers likely.

SATURDAY:
East winds 15 knots. Wind waves 6 feet. Northwest swell 3 to 5 feet. Scattered showers.


Maui County Leeward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
Northeast winds to 25 knots. Wind waves 6 feet. North swell 4 feet. Isolated showers in the morning.

TONIGHT:
Northeast winds to 25 knots. Wind waves 8 feet. North swell 4 feet. Scattered showers in the evening. Isolated showers after midnight.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 8 feet. North swell 4 feet. Isolated showers in the morning.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers.

THURSDAY:
East winds to 25 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 15 knots. Wind waves 6 feet. North swell 3 feet in the evening. Isolated showers in the evening.

FRIDAY:
Northeast winds 10 knots. Wind waves 4 to 5 feet. Isolated showers.

SATURDAY:
Northeast winds 10 knots. Wind waves 4 to 5 feet. Northwest swell 3 to 4 feet. Isolated showers.


Maalaea Bay-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
North winds to 30 knots. Wind waves 3 feet.

TONIGHT:
North winds to 25 knots. Wind waves 4 feet.

WEDNESDAY:
North winds to 30 knots. Wind waves 4 feet.

WEDNESDAY NIGHT:
Northeast winds to 25 knots easing to 15 knots after midnight. Wind waves 3 feet. Isolated showers.

THURSDAY:
Northeast winds 15 knots. Wind waves 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 10 knots. Wind waves 3 feet in the evening then 2 feet or less.

FRIDAY:
East winds 10 knots. Wind waves 2 feet or less. Isolated showers.

SATURDAY:
Northeast winds 10 knots becoming variable less than 10 knots. Wind waves 2 feet or less. Isolated showers.


Pailolo Channel-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
East winds to 30 knots. Wind waves 5 feet. Northwest swell 4 feet. Scattered showers in the morning. Isolated showers in the afternoon.

TONIGHT:
East winds to 30 knots. Wind waves 7 feet. North swell 4 feet. Scattered showers in the evening, then isolated showers after midnight.

WEDNESDAY:
East winds to 30 knots. Wind waves 8 feet. North swell 4 feet. Isolated showers through the day.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers.

THURSDAY:
East winds 20 knots. Wind waves 9 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

THURSDAY NIGHT:
East winds 15 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

FRIDAY:
East winds 15 knots. Wind waves 6 feet. North swell 3 feet. Scattered showers.

SATURDAY:
East winds 10 knots. Wind waves 5 to 6 feet. Northwest swell 3 feet. Isolated showers.


Alenuihaha Channel-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON

TODAY:
East winds to 30 knots. Wind waves 8 feet. Northwest swell 5 feet. Scattered showers in the morning. Isolated showers in the afternoon.

TONIGHT:
East gales to 35 knots. Wind waves 10 feet. Northwest swell 5 feet. Scattered showers.

WEDNESDAY:
East gales to 35 knots. Wind waves 9 feet. North swell 5 feet. Isolated showers through the day.

WEDNESDAY NIGHT:
East winds to 30 knots. Wind waves 10 feet. North swell 4 feet. Scattered showers in the evening. Isolated showers after midnight.

THURSDAY:
East winds to 25 knots. Wind waves 10 feet. North swell 3 feet. Scattered showers.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers in the evening. Isolated showers after midnight.

FRIDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

SATURDAY:
East winds 15 knots. Wind waves 5 to 6 feet. Northwest swell 3 to 4 feet. Isolated showers.


Big Island Windward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

TODAY:
Northeast winds to 25 knots. Wind waves 5 feet. Northwest swell 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
Northeast winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Scattered showers.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Northwest swell 5 feet. Scattered showers.

WEDNESDAY NIGHT:
East winds to 25 knots. Wind waves 8 feet. North swell 4 feet. Scattered showers in the evening, then showers likely after midnight.

THURSDAY:
East winds 20 knots. Wind waves 9 feet. North swell 4 feet. Showers likely in the morning, then scattered showers in the afternoon.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers in the evening, then showers likely after midnight.

FRIDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

SATURDAY:
East winds 15 knots. Wind waves 6 feet. Northwest swell 3 to 4 feet. Scattered showers.


Big Island Leeward Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON

TODAY:
West of the Big Island, east winds 15 knots veering southwest in the afternoon. Near South Point, east winds to 30 knots. Wind waves 8 feet. Northwest swell 3 feet.

TONIGHT:
East winds 15 knots west of the Big Island, east gales to 35 knots near South Point. Wind waves 8 feet. Northwest swell 3 feet. Scattered showers.

WEDNESDAY:
West of the Big Island, east winds 15 knots veering southwest in the afternoon. Near South Point, east gales to 35 knots. Wind waves 10 feet. Northwest swell 3 feet. Scattered showers in the morning.

WEDNESDAY NIGHT:
East winds 10 knots west of the Big Island, east to 30 knots near South Point. Wind waves 10 feet. North swell 3 feet. Scattered showers.

THURSDAY:
Southeast winds 10 knots west of the Big Island, east to 25 knots near South Point. Wind waves 10 feet. North swell 3 feet in the morning. Scattered showers.

THURSDAY NIGHT:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 9 feet. Scattered showers.

FRIDAY:
West of the Big Island, northwest winds 10 knots becoming variable less than 10 knots. Near South Point, east winds 20 knots. Wind waves 7 to 8 feet. Scattered showers.

SATURDAY:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 7 feet. Northwest swell 3 feet. Scattered showers.


Big Island Southeast Waters-
Nov 20, 2018 3:43 am HST

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Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON

TODAY:
Northeast winds to 30 knots. Wind waves 7 feet. Northwest swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

TONIGHT:
Northeast gales to 35 knots. Wind waves 8 feet. Northwest swell 4 feet. Scattered showers.

WEDNESDAY:
Northeast gales to 35 knots. Wind waves 9 feet. North swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
East winds to 30 knots. Wind waves 9 feet. North swell 4 feet. Scattered showers.

THURSDAY:
East winds to 25 knots. Wind waves 9 feet. North swell 4 feet. Scattered showers.

THURSDAY NIGHT:
East winds 20 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers.

FRIDAY:
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Scattered showers.

SATURDAY:
East winds 15 knots. Wind waves 6 to 7 feet. Northwest swell 3 feet. Scattered showers.