507
FZHW51 PHFO 190155
CWFHI1

Generalized Statewide Coastal Waters Forecast for Hawaii
National Weather Service Honolulu HI
355 PM HST Mon Aug 18 2025

.Synopsis for Hawaiian coastal waters...
 A ridge of high pressure far north of the state will help
maintain fresh to locally strong trade winds throughout the week.

$$

Hawaiian waters within 40 nautical miles including the channels-

...SMALL CRAFT ADVISORY THROUGH EARLY WEDNESDAY MORNING FOR MAALAEA
BAY...THE PAILOLO AND ALENUIHAHA CHANNELS AND WATERS SOUTH OF THE
BIG ISLAND...

.TONIGHT...East winds 20 to 25 knots. Seas 5 to 7 feet. Wave
Detail: East 5 feet at 6 seconds. Hazy. A chance of showers.
.TUESDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. Wave
Detail: East 5 feet at 6 seconds. Hazy. A slight chance of
showers.
.TUESDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to
9 feet. Wave Detail: East 5 feet at 6 seconds. Hazy. A slight
chance of showers.
.WEDNESDAY...East northeast winds 25 to 30 knots Alenuihaha
Channel...east northeast 15 to 20 knots elsewhere. Seas 5 to
8 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at
15 seconds. Hazy. A slight chance of showers.
.WEDNESDAY NIGHT...East winds 20 to 25 knots. Seas 5 to 8 feet. A
chance of showers.
.THURSDAY...East winds 20 to 25 knots. Seas 5 to 8 feet. A slight
chance of showers.
.THURSDAY NIGHT...East northeast winds 25 to 30 knots Alenuihaha
Channel...east northeast 15 to 20 knots elsewhere. Seas 5 to
8 feet. A chance of showers.
.FRIDAY...Alenuihaha Channel, east northeast winds 25 to
30 knots. Elsewhere, east winds 15 to 20 knots, becoming east
northeast 20 to 25 knots. Seas 5 to 8 feet. A slight chance of
showers.
.SATURDAY...Near the Big Island, east winds 25 to 30 knots.
Elsewhere, east winds 15 to 20 knots, rising to 20 to 25 knots.
Seas 5 to 7 feet. A slight chance of showers.

$$