Image Department Meteorology
Meteorology_Home Weather_Server News/Seminars
People
Research
Academics Application Contact_Us

Hawaiian_Weather
US_Mainland_Weather
Tropical_Weather
Satellite_Imagery
Polar_Imagery
Radar_Imagery
Marine
Numerical_Models
LAPS
Lightning_Data
Forecasts
Vog_Forecasts
Observations
Archive
Links Disclaimer
Space
SOEST_Home
University_of_Hawaii_Home

Menu of Text Products for the Hawaiian Islands and the Tropical Pacific/Atlantic Oceans:
Narrow the Menu List
Select Time Limit: 12 hours | 24 hours | 48 hours | 72 hours | No time limit
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

466
FZHW50 PHFO 201520
CWFHFO

Coastal Waters Forecast
NATIONAL WEATHER SERVICE Honolulu HI
520 AM HST Mon Aug 20 2018

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

PHZ100-210415-
520 AM HST Mon Aug 20 2018

.Synopsis for Hawaiian coastal waters...
A weak trough west of Kauai will move west and dissipate today
while high pressure builds to the distant north. Hurricane Lane,
centered near 13.7N 148.2W at 5 AM HST this morning is moving
west at 12 kt. Lane is forecast to pass to the south and southwest
of all islands this week, potentially bringing dangerously strong
winds and rough seas and swells. A Tropical Storm Watch is now in
effect for waters south of the Big Island.

$$

PHZ110-210415-
Kauai Northwest Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers in the morning.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Swell north
3 feet. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 6 feet. Swell north
4 to 5 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet.
Southeast swell 3 feet after midnight. Swell north 5 feet.
Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 6 feet. Mixed swell
southeast 3 feet and north 5 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 7 feet. Mixed
swell southeast 3 feet and north 4 to 5 feet. Scattered heavy
showers.
.THURSDAY...East winds 25 knots. Wind waves 8 feet. Mixed swell
southeast 4 feet and north 4 to 5 feet. Numerous heavy showers in
the morning, then frequent heavy showers in the afternoon.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ111-210415-
Kauai Windward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 15 knots. Wind waves 5 feet. Scattered
showers in the morning.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Swell north
3 feet. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 6 feet. Swell north
4 to 5 feet. Isolated showers in the morning, then scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Swell
north 5 feet. Scattered showers.
.WEDNESDAY...East winds 20 knots. Wind waves 6 feet. Mixed swell
southeast 3 feet and north 5 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Mixed
swell southeast 4 feet and north 5 feet. Scattered heavy showers
in the evening, then numerous heavy showers after midnight.
.THURSDAY...East winds 20 knots. Wind waves 8 feet. Mixed swell
southeast 5 feet and north 5 feet. Frequent heavy showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ112-210415-
Kauai Leeward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 15 knots. Wind waves 5 feet. Isolated showers
in the morning.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Swell north
3 feet. Isolated showers in the evening.
.TUESDAY...East winds 20 knots. Wind waves 6 feet. Southeast
swell 3 feet in the afternoon. Swell north 4 to 5 feet. Scattered
showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Mixed
swell southeast 3 feet and north 5 feet. Scattered showers.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 4 feet and north 4 to 5 feet. Scattered showers in the
morning, then isolated showers in the afternoon.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 7 feet. Mixed
swell southeast 5 feet and north 4 feet. Scattered heavy showers.
.THURSDAY... Tropical storm conditions possible. Numerous heavy
showers in the morning, then frequent heavy showers in the
afternoon.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ113-210415-
Kauai Channel-
520 AM HST Mon Aug 20 2018

.TODAY...Northeast winds 15 knots. Wind waves 5 feet. Isolated
showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 6 feet. Swell
north 3 feet. Isolated showers.
.TUESDAY...Northeast winds 20 knots. Wind waves 6 feet. Southeast
swell 3 feet in the afternoon. Swell north 3 to 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Mixed
swell southeast 3 feet and north 4 to 5 feet. Scattered showers.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 4 feet and north 4 to 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 7 feet. Mixed
swell southeast 5 feet and north 4 feet. Scattered heavy showers
in the evening, then numerous heavy showers after midnight.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ114-210415-
Oahu Windward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 20 knots. Wind waves 6 feet. Scattered
showers in the morning.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Southeast
swell 3 feet and north 3 feet after midnight. Isolated showers.
.TUESDAY...East winds 20 knots. Wind waves 6 feet. Mixed swell
southeast 3 feet and north 4 to 5 feet. Isolated showers in the
morning, then scattered showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Mixed
swell southeast 3 feet and north 5 feet. Scattered showers.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 3 feet and north 5 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 8 feet. Mixed
swell southeast 3 feet and north 4 to 5 feet. Scattered heavy
showers in the evening, then frequent heavy showers after
midnight.
.THURSDAY...East winds 25 knots. Wind waves 9 feet. Mixed swell
southeast 3 feet and north 4 to 5 feet. Frequent heavy showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ115-210415-
Oahu Leeward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 20 knots. Wind waves 5 feet. Isolated showers
in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 6 feet.
.TUESDAY...Northeast winds 25 knots. Wind waves 6 feet. Southeast
swell 3 feet in the afternoon. Swell north 3 to 4 feet. Isolated
showers in the afternoon.
.TUESDAY NIGHT...Northeast winds 20 knots. Wind waves 7 feet.
Mixed swell southeast 3 feet and north 4 to 5 feet. Isolated
showers.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 5 feet and north 4 to 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Mixed
swell southeast 7 feet and north 4 feet. Scattered heavy showers
in the evening, then numerous heavy showers after midnight.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Hurricane conditions possible. Frequent heavy
showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ116-210415-
Kaiwi Channel-
520 AM HST Mon Aug 20 2018

.TODAY...Northeast winds 20 knots. Wind waves 6 feet. Isolated
showers in the morning.
.TONIGHT...Northeast winds 20 knots. Wind waves 6 feet. Isolated
showers.
.TUESDAY...Northeast winds 25 knots. Wind waves 6 feet. Swell
north 3 to 4 feet. Isolated showers through the day.
.TUESDAY NIGHT...East winds 25 knots. Wind waves 7 feet.
Southeast swell 3 feet after midnight. Swell north 4 to 5 feet.
Scattered showers in the evening, then isolated showers after
midnight.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 3 feet and north 4 to 5 feet. Isolated showers.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 8 feet. Mixed
swell southeast 4 feet and north 4 feet. Numerous heavy showers.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers in the evening, then numerous heavy showers after
midnight.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ117-210415-
Maui County Windward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 20 knots. Wind waves 6 feet. Southeast swell
3 feet in the afternoon. Scattered showers in the morning.
.TONIGHT...East winds 20 knots. Wind waves 6 feet. Southeast
swell 3 feet. Isolated showers.
.TUESDAY...East winds 25 knots. Wind waves 6 feet. Mixed swell
southeast 3 feet and north 3 to 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Mixed
swell southeast 4 feet and north 4 to 5 feet. Scattered showers.
.WEDNESDAY...East winds 25 knots. Wind waves 7 feet. Mixed swell
southeast 4 feet and north 5 feet. Scattered showers.
.WEDNESDAY NIGHT...East winds 25 knots. Wind waves 8 feet. Mixed
swell southeast 3 feet and north 5 feet. Frequent heavy showers.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ118-210415-
Maui County Leeward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...East winds 20 knots. Wind waves 5 feet. Isolated showers
in the morning.
.TONIGHT...Northeast winds 25 knots. Wind waves 5 feet.
.TUESDAY...Northeast winds 25 knots. Wind waves 6 feet. Swell
north 3 feet. Isolated showers in the afternoon.
.TUESDAY NIGHT...Northeast winds 25 knots. Wind waves 6 feet.
Southeast swell 3 feet after midnight. Swell north 3 to 4 feet.
Isolated showers through the night.
.WEDNESDAY...Northeast winds 25 knots. Wind waves 6 feet. Mixed
swell southeast 3 feet and north 4 feet. Isolated showers.
.WEDNESDAY NIGHT...Northeast winds 20 knots. Wind waves 6 feet.
Mixed swell southeast 5 feet and north 4 feet. Numerous heavy
showers.
.THURSDAY... Tropical storm conditions possible. Numerous heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers in the evening, then numerous heavy showers after
midnight.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ119-210415-
Maalaea Bay-
520 AM HST Mon Aug 20 2018

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

.TODAY...North winds 25 knots. Wind waves 3 feet.
.TONIGHT...North winds 25 knots. Wind waves 3 feet.
.TUESDAY...North winds 25 knots. Wind waves 3 feet.
.TUESDAY NIGHT...North winds 25 knots. Wind waves 3 feet in the
evening then 2 feet or less. Isolated showers after midnight.
.WEDNESDAY...North winds 20 knots. Wind waves 2 feet or less then
3 feet in the afternoon. Isolated showers in the morning.
.WEDNESDAY NIGHT...North winds 20 knots in the evening becoming
variable less than 10 knots. Wind waves 2 feet or less. Numerous
heavy showers.
.THURSDAY... Tropical storm conditions possible. Numerous heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Numerous
heavy showers.
.FRIDAY... Tropical storm conditions possible. Numerous heavy
showers.

$$

PHZ120-210415-
Pailolo Channel-
520 AM HST Mon Aug 20 2018

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

.TODAY...East winds 25 knots. Wind waves 6 feet. Isolated showers
in the morning.
.TONIGHT...Northeast winds 25 knots. Wind waves 6 feet. Isolated
showers.
.TUESDAY...East winds 25 knots. Wind waves 6 feet. Swell north
3 to 4 feet. Isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 25 knots. Gusts up to 35 knots in the
evening. Wind waves 6 feet. Swell north 4 feet. Scattered showers
in the evening, then isolated showers after midnight.
.WEDNESDAY...East winds 25 knots. Wind waves 6 feet. Swell north
4 feet. Isolated showers in the morning. Scattered showers in the
afternoon.
.WEDNESDAY NIGHT...East winds 20 knots. Wind waves 7 feet. Swell
northeast 4 feet. Numerous heavy showers.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers in the morning, then numerous heavy showers in the
afternoon.
.THURSDAY NIGHT... Tropical storm conditions possible. Numerous
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ121-210415-
Alenuihaha Channel-
520 AM HST Mon Aug 20 2018

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

.TODAY...East winds 25 knots. Gusts up to 35 knots in the
afternoon. Wind waves 7 feet. Isolated showers in the morning.
.TONIGHT...Northeast winds 30 knots. Wind waves 8 feet. Southeast
swell 3 feet. Isolated showers.
.TUESDAY...East winds 30 knots. Wind waves 8 feet. Mixed swell
southeast 3 feet and north 3 to 4 feet. Isolated showers.
.TUESDAY NIGHT...East winds 30 knots. Wind waves 8 feet. Mixed
swell southeast 3 feet and north 4 feet. Scattered showers in the
evening, then isolated showers after midnight.
.WEDNESDAY...East winds 30 knots. Wind waves 9 feet. Mixed swell
southeast 3 feet and north 4 feet. Isolated showers.
.WEDNESDAY NIGHT... Tropical storm conditions possible. Numerous
heavy showers.
.THURSDAY... Tropical storm conditions possible. Numerous heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Numerous
heavy showers.
.FRIDAY... Tropical storm conditions possible. Numerous heavy
showers.

$$

PHZ122-210415-
Big Island Windward Waters-
520 AM HST Mon Aug 20 2018

.TODAY...Northeast winds 20 knots. Wind waves 7 feet. Southeast
swell 3 feet. Scattered showers in the morning.
.TONIGHT...Northeast winds 25 knots. Wind waves 7 feet. Mixed
swell southeast 4 feet and north 3 feet. Isolated showers.
.TUESDAY...Northeast winds 25 knots. Wind waves 6 feet. Mixed
swell southeast 5 feet and north 3 to 4 feet. Scattered showers
in the morning, then isolated showers in the afternoon.
.TUESDAY NIGHT...East winds 20 knots. Wind waves 6 feet. Mixed
swell southeast 6 feet and north 4 to 5 feet. Scattered showers
in the evening, then showers likely after midnight.
.WEDNESDAY...East winds 20 knots. Wind waves 6 feet. Mixed swell
southeast 6 feet and north 5 to 6 feet. Showers likely.
.WEDNESDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ123-210415-
Big Island Leeward Waters-
520 AM HST Mon Aug 20 2018

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...East winds 25 knots. Wind waves 10 feet. Isolated
showers in the morning. Haze through the day.
.TONIGHT...East winds 25 knots. Wind waves 10 feet. Isolated
showers in the evening. Haze through the night.
.TUESDAY...Northeast winds 25 knots. Wind waves 8 feet. Southeast
swell 3 feet. Haze. Isolated showers.
.TUESDAY NIGHT...Tropical Storm conditions possible. East winds
25 knots. Wind waves 8 feet. Southeast swell 4 feet. Haze through
the night. Scattered showers in the evening. Isolated showers
after midnight.
.WEDNESDAY... Tropical storm conditions possible. East winds
25 knots. Wind waves 8 feet. Southeast swell 5 feet. Haze.
Isolated showers.
.WEDNESDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.THURSDAY... Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT... Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY... Tropical storm conditions possible. Frequent heavy
showers.

$$

PHZ124-210415-
Big Island Southeast Waters-
520 AM HST Mon Aug 20 2018

...TROPICAL STORM WATCH IN EFFECT...

.TODAY...Northeast winds 25 knots. Wind waves 10 feet. Southeast
swell 3 feet in the afternoon. Scattered showers in the morning.
Haze through the day.
.TONIGHT...Northeast winds 25 knots. Gusts up to 35 knots in the
evening. Wind waves 10 feet. Southeast swell 3 feet and northeast
3 feet. Haze. Isolated showers.
.TUESDAY...Northeast winds 25 knots. Wind waves 9 feet. Southeast
swell 6 feet and northeast 3 to 4 feet. Haze. Scattered showers.
.TUESDAY NIGHT...Tropical storm conditions possible. Northeast
winds 25 knots. Wind waves 9 feet. Southeast swell 8 feet and
northeast 4 to 5 feet. Haze through the night. Showers likely in
the evening. Occasional showers after midnight.
.WEDNESDAY...Tropical storm conditions possible. Northeast winds
25 knots. Wind waves 9 feet. Southeast swell 11 feet and northeast
5 to 6 feet. Haze through the day. Occasional showers in the
morning. Showers likely in the afternoon.
.WEDNESDAY NIGHT...Tropical storm conditions possible. Frequent
heavy showers.
.THURSDAY...Tropical storm conditions possible. Frequent heavy
showers.
.THURSDAY NIGHT...Tropical storm conditions possible. Frequent
heavy showers.
.FRIDAY...Tropical storm conditions possible. Frequent heavy
showers.

$$

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



This page is maintained voluntarily by the MKWC and the UHMET faculty, staff, and students.
It was last modified on: Wed, Dec 17 2014 - 1841 UTC
Send comments to: Ryan Lyman