Coastal Waters Forecast
Issued by NWS Honolulu, HI

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000
FZHW50 PHFO 240718
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
918 PM HST Mon Oct 23 2017

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

PHZ100-242030-
918 PM HST Mon Oct 23 2017

.Synopsis for Hawaiian coastal waters...
A strong cold front moving over the northwest waters will
continue to advance eastward down the island chain through
midweek. The front is forecast to stall and weaken across the Big
Island waters Wednesday through Thursday. High pressure will build
northwest of the region Thursday through Friday.


$$

PHZ110-242030-
Kauai Northwest Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...North winds 20 knots. Wind waves 6 feet.
Northwest swell 9 feet. Numerous heavy showers late in the
evening. Isolated thunderstorms through the night. Scattered
showers after midnight.
.TUESDAY...North winds 20 knots. Wind waves 6 feet. Northwest
swell 10 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 11 feet. Isolated showers.
.WEDNESDAY...North winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 3 feet. North swell
9 feet.
.WEDNESDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 8 feet.
.THURSDAY...North winds 10 knots. Wind waves 4 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 9 feet increasing to 12 feet after midnight.
Scattered showers.
.FRIDAY...Northeast winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 11 to 12 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 8 to 10 feet. Scattered showers.

$$

PHZ111-242030-
Kauai Windward Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Northwest winds 15 knots. Wind waves 5 feet.
Northwest swell 8 feet. Numerous heavy showers and isolated
thunderstorms.
.TUESDAY...North winds 15 knots. Wind waves 6 feet. Northwest
swell 10 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 11 feet. Isolated showers.
.WEDNESDAY...North winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 3 feet. North swell
10 feet.
.WEDNESDAY NIGHT...North winds 10 knots. Wind waves 3 feet. North
swell 9 feet.
.THURSDAY...North winds 10 knots. Wind waves 4 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 10 knots. Wind waves 4 feet.
Northwest swell 9 feet increasing to 12 feet after midnight.
Isolated showers in the evening, then scattered showers after
midnight.
.FRIDAY...Northeast winds 10 knots. Wind waves 3 feet. Northwest
swell 11 to 12 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 8 to 10 feet. Scattered showers.

$$

PHZ112-242030-
Kauai Leeward Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...North winds 15 knots rising to to 25 knots
after midnight. Wind waves 6 feet. Northwest swell 7 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY...North winds 20 knots. Wind waves 6 feet. Northwest
swell 10 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 11 feet. Isolated showers in the evening.
.WEDNESDAY...North winds 10 knots. Wind waves 2 feet or less.
North swell 9 feet.
.WEDNESDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 8 feet.
.THURSDAY...North winds 10 knots. Wind waves 3 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
Northwest swell 9 feet increasing to 12 feet after midnight.
Isolated showers.
.FRIDAY...Northeast winds 15 knots. In the Kaulakahi Channel,
northeast winds 10 knots in the morning becoming variable less
than 10 knots, then becoming northeast 10 knots. Wind waves 3 to
4 feet. Northwest swell 12 to 13 feet. Isolated showers.
.SATURDAY...East winds 10 knots. In the Kaulakahi Channel, east
winds 10 knots in the morning becoming variable less than
10 knots, then becoming east 10 knots. Wind waves 3 feet.
Northwest swell 8 to 10 feet. Isolated showers.

$$

PHZ113-242030-
Kauai Channel-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Northwest winds 10 knots becoming north to
25 knots after midnight. Wind waves 5 feet. Northwest swell
6 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...North winds 20 knots. Wind waves 6 feet. Northwest
swell 8 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 10 feet. Isolated showers after midnight.
.WEDNESDAY...North winds 10 knots. Wind waves 3 feet. North swell
10 feet.
.WEDNESDAY NIGHT...Northeast winds 10 knots. Wind waves 3 feet.
North swell 8 feet.
.THURSDAY...North winds 15 knots. Wind waves 4 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 8 feet increasing to 11 feet after midnight.
Isolated showers.
.FRIDAY...Northeast winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 11 to 12 feet. Isolated showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 3 feet.
Northwest swell 8 to 10 feet. Isolated showers.

$$

PHZ114-242030-
Oahu Windward Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...West winds 10 knots becoming north 20 knots
after midnight. Wind waves 5 feet. Northwest swell 6 feet.
Numerous heavy showers and isolated thunderstorms.
.TUESDAY...North winds 15 knots. Wind waves 6 feet. Northwest
swell 8 feet. Scattered showers.
.TUESDAY NIGHT...North winds 10 knots. Wind waves 5 feet.
Northwest swell 10 feet. Isolated showers through the night.
.WEDNESDAY...North winds 10 knots. Wind waves 4 feet. Northwest
swell 10 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 10 knots. Wind waves 4 feet.
North swell 9 feet.
.THURSDAY...North winds 10 knots. Wind waves 4 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 9 feet increasing to 11 feet after midnight.
Isolated showers.
.FRIDAY...Northeast winds 15 knots. Wind waves 3 feet. Northwest
swell 11 to 12 feet. Scattered showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 8 to 10 feet. Scattered showers.

$$

PHZ115-242030-
Oahu Leeward Waters-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...Southwest winds 10 knots becoming north
20 knots after midnight. Wind waves 5 feet. Northwest swell
5 feet. Numerous heavy showers and isolated thunderstorms.
.TUESDAY...North winds 20 knots. Wind waves 6 feet. Northwest
swell 7 feet. Scattered showers.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 4 feet.
Northwest swell 8 feet. Isolated showers.
.WEDNESDAY...North winds 10 knots. Wind waves 2 feet or less.
Northwest swell 9 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
Northwest swell 8 feet.
.THURSDAY...North winds 15 knots. Wind waves 4 feet. Northwest
swell 7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 8 feet.
.FRIDAY...Northeast winds 15 knots. Wind waves 3 to 4 feet.
Northwest swell 9 to 11 feet. Isolated showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 3 feet.
Northwest swell 7 to 9 feet. Isolated showers.

$$

PHZ116-242030-
Kaiwi Channel-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Southwest winds 10 knots veering northwest
after midnight. Wind waves 5 feet. Northwest swell 5 feet.
Frequent heavy showers late in the evening. Isolated
thunderstorms through the night. Numerous heavy showers after
midnight.
.TUESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 6 feet increasing to 8 feet in the afternoon. Scattered
showers and isolated thunderstorms.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 9 feet. Isolated showers in the evening, then
scattered showers after midnight.
.WEDNESDAY...North winds 10 knots. Wind waves 4 feet. Northwest
swell 10 feet. Isolated showers in the morning.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
North swell 9 feet. Isolated showers.
.THURSDAY...North winds 15 knots. Wind waves 4 feet. North swell
7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
North swell 7 feet increasing to northwest 10 feet after
midnight. Isolated showers after midnight.
.FRIDAY...Northeast winds 15 knots. Wind waves 3 feet. Northwest
swell 10 to 12 feet. Isolated showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 3 feet.
Northwest swell 8 to 10 feet. Isolated showers.

$$

PHZ117-242030-
Maui County Windward Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Southwest winds 10 knots veering northwest
after midnight. Wind waves 5 feet. Northwest swell 5 feet.
Frequent heavy showers and isolated thunderstorms.
.TUESDAY...Northwest winds 15 knots. Wind waves 5 feet. Northwest
swell 7 feet. Numerous heavy showers in the morning. Isolated
thunderstorms through the day. Scattered heavy showers in the
afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 9 feet. Scattered showers.
.WEDNESDAY...North winds 10 knots. Wind waves 4 feet. Northwest
swell 10 feet. Scattered showers through the day.
.WEDNESDAY NIGHT...North winds 10 knots. Wind waves 4 feet. North
swell 9 feet. Isolated showers.
.THURSDAY...North winds 10 knots. Wind waves 4 feet. North swell
7 feet. Isolated showers in the morning.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 7 feet increasing to 10 feet after midnight.
Isolated showers.
.FRIDAY...Northeast winds 10 knots. Wind waves 3 feet. Northwest
swell 10 to 12 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 9 to 11 feet. Isolated showers.

$$

PHZ118-242030-
Maui County Leeward Waters-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...South winds 10 knots veering northwest after
midnight. Wind waves 5 feet. Northwest swell 4 feet. Frequent
heavy showers late in the evening. Isolated thunderstorms through
the night. Numerous heavy showers after midnight.
.TUESDAY...North winds 20 knots. Wind waves 5 feet. Northwest
swell 5 feet. Numerous heavy showers in the morning. Isolated
thunderstorms through the day. Scattered showers in the
afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 6 feet. Scattered showers.
.WEDNESDAY...North winds 10 knots. Wind waves 3 feet. Northwest
swell 7 feet. Scattered showers in the morning, then isolated
showers in the afternoon.
.WEDNESDAY NIGHT...North winds 15 knots. Wind waves 4 feet.
Northwest swell 7 feet. Isolated showers.
.THURSDAY...North winds 15 knots. Wind waves 3 feet. Northwest
swell 6 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 3 feet.
Northwest swell 6 feet.
.FRIDAY...Northeast winds 10 knots. Wind waves 3 feet. Northwest
swell 7 to 9 feet. Isolated showers.
.SATURDAY...Northeast winds 10 knots. Wind waves 3 feet.
Northwest swell 6 to 8 feet. Isolated showers.

$$

PHZ119-242030-
Maalaea Bay-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...Winds variable less than 10 knots becoming
west 10 knots after midnight. Wind waves 3 feet. Frequent heavy
showers late in the evening. Isolated thunderstorms through the
night. Numerous heavy showers after midnight.
.TUESDAY...North winds 15 knots. Wind waves 2 feet or less.
Numerous heavy showers in the morning. Isolated thunderstorms
through the day. Scattered showers in the afternoon.
.TUESDAY NIGHT...North winds 10 knots. Wind waves 2 feet or less.
Scattered showers.
.WEDNESDAY...North winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 2 feet or less. Scattered
showers in the morning, then isolated showers in the afternoon.
.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 15 knots. Wind waves 2 feet or
less.
.FRIDAY...North winds 10 knots rising to 20 knots. Wind waves
2 feet or less.
.SATURDAY...North winds 15 knots. Wind waves 2 feet or less.

$$

PHZ120-242030-
Pailolo Channel-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...Southwest winds 10 knots veering northwest
after midnight. Wind waves 4 feet. Northwest swell 4 feet.
Frequent heavy showers late in the evening. Isolated
thunderstorms through the night. Numerous heavy showers after
midnight.
.TUESDAY...North winds 20 knots. Wind waves 4 feet. Northwest
swell 5 feet. Numerous heavy showers in the morning. Isolated
thunderstorms through the day. Scattered showers in the
afternoon.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 4 feet.
Northwest swell 6 feet. Scattered showers.
.WEDNESDAY...Northeast winds 10 knots. Wind waves 3 feet.
Northwest swell 8 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 8 feet. Isolated showers in the evening.
.THURSDAY...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 6 feet.
.THURSDAY NIGHT...Northeast winds 20 knots. Wind waves 4 feet.
Northwest swell 6 feet.
.FRIDAY...Northeast winds 20 knots. Wind waves 3 feet. Northwest
swell 7 to 8 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 3 feet.
Northwest swell 6 to 8 feet. Isolated showers.

$$

PHZ121-242030-
Alenuihaha Channel-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...Southwest winds 15 knots backing southeast
after midnight. Wind waves 6 feet. Northwest swell 5 feet. Haze
through the night. Frequent heavy showers late in the evening.
Isolated thunderstorms through the night. Numerous heavy showers
after midnight.
.TUESDAY...North winds 15 knots. Wind waves 6 feet. Northwest
swell 5 feet. Haze. Numerous heavy showers and isolated
thunderstorms.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 7 feet. Haze in the evening. Scattered showers
through the night.
.WEDNESDAY...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 9 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 9 feet. Isolated showers through the night.
.THURSDAY...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 7 feet.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 7 feet increasing to 9 feet after midnight.
.FRIDAY...Northeast winds 15 knots. Wind waves 4 feet. Northwest
swell 10 to 12 feet. Isolated showers.
.SATURDAY...Northeast winds 15 knots. Wind waves 4 feet.
Northwest swell 8 to 10 feet. Isolated showers.

$$

PHZ122-242030-
Big Island Windward Waters-
918 PM HST Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...South winds 20 knots. Wind waves 5 feet.
Northwest swell 5 feet. Haze. Numerous heavy showers and isolated
thunderstorms.
.TUESDAY...South winds 15 knots. Wind waves 6 feet. Northwest
swell 5 feet. Haze. Frequent heavy showers and isolated
thunderstorms.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 7 feet and south 3 feet. Haze in the evening.
Showers likely through the night.
.WEDNESDAY...North winds 15 knots. Wind waves 4 feet. Northwest
swell 9 feet and south 4 feet. Showers likely in the morning,
then scattered showers in the afternoon.
.WEDNESDAY NIGHT...North winds 15 knots. Wind waves 5 feet.
Northwest swell 9 feet and south 3 to 4 feet. Scattered showers.
.THURSDAY...North winds 15 knots. Wind waves 5 feet. North swell
7 feet and south 3 feet. Scattered showers in the morning, then
isolated showers in the afternoon.
.THURSDAY NIGHT...North winds 15 knots. Wind waves 4 feet. North
swell 7 feet increasing to northwest 9 feet after midnight.
Scattered showers.
.FRIDAY...Northeast winds 10 knots. Wind waves 3 feet. Northwest
swell 10 to 12 feet. Isolated showers.
.SATURDAY...East winds 10 knots. Wind waves 3 feet. Northwest
swell 9 to 11 feet. Isolated showers.

$$

PHZ123-242030-
Big Island Leeward Waters-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...East winds 20 knots west of the Big Island...
variable less than 10 knots near Kawaihae. Wind waves 6 feet.
Northwest swell 4 feet. Haze. Numerous heavy showers and isolated
thunderstorms.
.TUESDAY...Southeast winds 20 knots west of the Big Island...
variable less than 10 knots near Kawaihae. Wind waves 6 feet.
Northwest swell 3 feet. Haze through the day. Frequent heavy
showers in the morning. Isolated thunderstorms through the day.
Numerous heavy showers in the afternoon.
.TUESDAY NIGHT...North winds 15 knots west of the Big Island...
variable less than 10 knots near South Point. Wind waves 5 feet.
Northwest swell 5 feet. Haze through the night. Numerous showers
in the evening. Scattered showers after midnight.
.WEDNESDAY...West of the Big Island, north winds 10 knots. Near
South Point, northeast winds 10 knots in the morning becoming
variable less than 10 knots. Wind waves 4 feet. Northwest swell
6 feet and south 3 feet. Haze through the day. Scattered showers
in the morning. Isolated showers in the afternoon.
.WEDNESDAY NIGHT...North winds 10 knots. Wind waves 4 feet.
Northwest swell 6 feet. Swell south 3 feet. Haze. Isolated
showers.
.THURSDAY...North winds 15 knots. Wind waves 4 feet. Northwest
swell 5 feet. Haze. Isolated showers.
.THURSDAY NIGHT...West of the Big Island, north winds 10 knots in
the evening becoming variable less than 10 knots. Near Kawaihae,
northeast winds 15 knots. Wind waves 4 feet. Northwest swell
5 feet. Isolated showers in the evening. Haze through the night.
.FRIDAY...West of the Big Island, winds variable less than
10 knots in the morning becoming northwest 10 knots, then veering
east in the evening becoming variable less than 10 knots. Near
South Point, northeast winds 10 knots becoming east 20 knots.
Wind waves 4 to 5 feet. Northwest swell 6 to 8 feet. Haze.
Isolated showers.
.SATURDAY...Winds variable less than 10 knots west of the Big
Island...east 15 knots near South Point. Wind waves 5 feet.
Northwest swell 6 to 8 feet. Haze. Isolated showers.

$$

PHZ124-242030-
Big Island Southeast Waters-
918 PM HST Mon Oct 23 2017

.REST OF TONIGHT...East winds 15 knots. Wind waves 5 feet.
Northwest swell 5 feet. Haze. Numerous heavy showers and isolated
thunderstorms.
.TUESDAY...Southeast winds 10 knots. Wind waves 5 feet. Mixed
swell northwest 4 feet and south 3 feet. Haze. Frequent heavy
showers and isolated thunderstorms.
.TUESDAY NIGHT...North winds 15 knots. Wind waves 4 feet. Mixed
swell northwest 4 feet and south 3 feet. Showers likely.
.WEDNESDAY...Northeast winds 15 knots. Wind waves 5 feet. Mixed
swell northwest 6 feet and south 4 feet. Showers likely in the
morning, then scattered showers in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
Mixed swell northwest 6 feet and south 3 to 4 feet. Scattered
showers.
.THURSDAY...North winds 15 knots. Wind waves 5 feet. Northwest
swell 6 feet. Swell south 3 feet. Scattered showers in the
morning, then isolated showers in the afternoon.
.THURSDAY NIGHT...Northeast winds 15 knots. Wind waves 5 feet.
Northwest swell 6 feet. Scattered showers.
.FRIDAY...Northeast winds 15 knots. Wind waves 4 to 5 feet.
Northwest swell 6 to 8 feet. Isolated showers.
.SATURDAY...East winds 15 knots. Wind waves 5 feet. Northwest
swell 6 to 8 feet. Isolated showers.

$$


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