National Weather Service United States Department of Commerce

SYNOPSIS FOR HAWAIIAN COASTAL WATERS
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Synopsis for Hawaiian coastal waters:
Ridge of high pressure will remain north of the waters through the week.


Kauai Northwest Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 7 feet. Isolated showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 6 feet. Scattered showers.

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

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 6 feet. Northwest swell 3 feet. Scattered showers.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 6 feet. Northwest swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
Northeast 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. Isolated showers.

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


Kauai Windward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 7 feet. Scattered showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 6 feet. Scattered showers.

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

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

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

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 6 feet. Northwest swell 3 feet. Isolated showers in the evening, then scattered showers after midnight.

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

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


Kauai Leeward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 8 feet. Isolated showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.

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

TUESDAY NIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated showers.

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

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

THURSDAY:
East winds 20 knots. Wind waves 6 to 7 feet. Northwest swell 3 feet. Isolated showers.

FRIDAY:
East winds 15 knots. Wind waves 6 feet. Isolated showers.


Kauai Channel-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
Northeast winds 20 knots. Wind waves 8 feet. Isolated showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.

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

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

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated showers.

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated showers.

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

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


Oahu Windward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 8 feet. Isolated showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.

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

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 6 feet. Northwest swell 3 feet. Scattered showers.

WEDNESDAY:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 4 feet. Scattered showers in the morning, then isolated showers in the afternoon.

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 3 feet. Scattered showers.

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

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


Oahu Leeward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
Northeast winds 20 knots. Wind waves 7 feet. Isolated showers late in the morning.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Isolated showers.

TUESDAY:
Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.

TUESDAY NIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 3 feet and southwest 3 feet after midnight. Scattered showers in the evening, then isolated showers after midnight.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Mixed swell northwest 3 feet and southwest 3 feet. Isolated showers.

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 6 feet. Mixed swell northwest 3 feet and southwest 3 feet. Isolated showers.

THURSDAY:
East winds 20 knots. Wind waves 6 to 7 feet. Mixed swell northwest 3 feet and southwest 3 feet. Isolated showers.

FRIDAY:
East winds 20 knots. Wind waves 5 to 6 feet. Swell southwest 3 feet. Isolated showers.


Kaiwi Channel-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
Northeast winds 20 knots. Wind waves 8 feet. Isolated showers through the day.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Scattered showers.

TUESDAY:
Northeast winds 20 knots. Wind waves 6 feet. Scattered showers.

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 6 feet. Northwest swell 3 feet after midnight. Scattered showers in the evening, then isolated showers after midnight.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 6 feet. Northwest swell 3 feet. Isolated showers.

WEDNESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 7 feet. Mixed swell northwest 3 feet and southwest 3 feet. Scattered showers in the evening, then isolated showers after midnight.

THURSDAY:
East winds to 25 knots. Wind waves 6 to 7 feet. Mixed swell northwest 3 feet and southwest 3 feet. Isolated showers.

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


Maui County Windward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 7 feet. Isolated showers.

TONIGHT:
East winds 20 knots. Wind waves 7 feet. Scattered showers.

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

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

WEDNESDAY:
Northeast 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.

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


Maui County Leeward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
Northeast winds 20 knots. Wind waves 7 feet. Isolated showers late in the morning.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Isolated showers.

TUESDAY:
Northeast winds 20 knots. Wind waves 6 feet. Isolated showers.

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

WEDNESDAY:
Northeast winds 20 knots. Wind waves 6 feet. Isolated showers.

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 5 feet. Isolated showers.

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

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


Maalaea Bay-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON

REST OF TODAY:
Northeast winds to 25 knots. Wind waves 3 feet.

TONIGHT:
Northeast winds to 25 knots. Wind waves 3 feet.

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

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 3 feet.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 3 feet.

WEDNESDAY NIGHT:
North winds 20 knots. Wind waves 3 feet.

THURSDAY:
Northeast winds 15 knots rising to to 25 knots. Wind waves 3 feet.

FRIDAY:
Northeast winds 20 knots. Wind waves 3 feet.


Pailolo Channel-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON

REST OF TODAY:
East winds to 25 knots. Wind waves 7 feet. Isolated showers.

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

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

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 6 feet. Scattered showers in the evening. Isolated showers after midnight.

WEDNESDAY:
Northeast winds 20 knots. Wind waves 5 feet. Northwest swell 3 feet. Scattered showers in the morning. Isolated showers in the afternoon.

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

THURSDAY:
East winds to 25 knots. Wind waves 6 feet. North swell 3 feet. Scattered showers.

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


Alenuihaha Channel-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON

REST OF TODAY:
East winds to 25 knots. Wind waves 8 feet. Isolated showers late in the morning.

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

TUESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Isolated showers.

TUESDAY NIGHT:
East winds to 25 knots. Wind waves 7 feet. Northwest swell 3 feet after midnight. Isolated showers in the evening. Scattered showers after midnight.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Northwest swell 3 feet. Isolated showers.

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

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

FRIDAY:
East winds to 25 knots. Wind waves 6 to 7 feet. Isolated showers.


Big Island Windward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

REST OF TODAY:
East winds 20 knots. Wind waves 6 feet. Isolated showers through the day.

TONIGHT:
Northeast winds 15 knots. Wind waves 6 feet. Scattered showers in the evening, then isolated showers after midnight.

TUESDAY:
Northeast winds 15 knots. Wind waves 5 feet. Isolated showers through the day.

TUESDAY NIGHT:
Northeast winds 15 knots. Wind waves 6 feet. Northwest swell 3 feet after midnight. Isolated showers.

WEDNESDAY:
Northeast winds 15 knots. Wind waves 5 feet. Northwest swell 3 feet. Isolated showers through the day.

WEDNESDAY NIGHT:
Northeast winds 15 knots. Wind waves 5 feet. Northwest swell 3 feet. Isolated showers in the evening, then scattered showers after midnight.

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

FRIDAY:
East winds 20 knots. Wind waves 5 to 6 feet. Northwest swell 3 feet. Scattered showers.


Big Island Leeward Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON

REST OF TODAY:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 8 feet. Haze through the day.

TONIGHT:
West of the Big Island, winds variable less than 10 knots becoming northeast 10 knots after midnight. Near South Point, east winds 20 knots. Wind waves 7 feet. Haze.

TUESDAY:
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. Haze through the day.

TUESDAY NIGHT:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 8 feet. Isolated showers in the evening. Haze through the night.

WEDNESDAY:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 7 feet. Haze. Isolated showers.

WEDNESDAY NIGHT:
Winds variable less than 10 knots west of the Big Island, east 20 knots near South Point. Wind waves 7 feet. Haze through the night. Isolated showers through the night.

THURSDAY:
West of the Big Island, winds variable less than 10 knots becoming east 10 knots. Near South Point, east winds to 25 knots. Wind waves 7 to 8 feet. Haze. Isolated showers.

FRIDAY:
West of the Big Island, west winds 10 knots backing east. Near South Point, east winds to 25 knots. Wind waves 7 to 8 feet. Haze. Isolated showers.


Big Island Southeast Waters-
May 21, 2018 9:37 am HST

Hazards Feed: RSS Feed  Forecast Feed: RSS Feed

Headlines:
SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON

REST OF TODAY:
Northeast winds to 25 knots. Wind waves 8 feet. Haze. Isolated showers.

TONIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Haze. Scattered showers.

TUESDAY:
Northeast winds to 25 knots. Wind waves 7 feet. Haze. Isolated showers.

TUESDAY NIGHT:
Northeast winds to 25 knots. Wind waves 8 feet. Haze. Scattered showers.

WEDNESDAY:
Northeast winds to 25 knots. Wind waves 8 feet. Haze through the day. Scattered showers in the morning. Isolated showers in the afternoon.

WEDNESDAY NIGHT:
Northeast winds 20 knots. Wind waves 7 feet. Northwest swell 3 feet. Haze through the night. Isolated showers in the evening. Scattered showers after midnight.

THURSDAY:
East winds to 25 knots. Wind waves 7 to 8 feet. Northwest swell 3 feet. Haze. Scattered showers.

FRIDAY:
East winds to 25 knots. Wind waves 7 to 8 feet. Haze. Scattered showers.