fzhw50 phfo 171318
cwfhfo
expires:202604180230;;522738

coastal waters forecast
national weather service honolulu hi
318 am hst fri apr 17 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz113-180230-
kauai channel-
318 am hst fri apr 17 2026

.today...east northeast winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: east southeast 3 feet at 5 seconds. 
.tonight...east northeast winds 15 to 20 knots. seas 4 to 6 feet.
wave detail: east 5 feet at 6 seconds. a slight chance of showers
and thunderstorms. 
.saturday...east winds 10 to 15 knots. seas 5 to 6 feet,
subsiding to 4 feet in the afternoon. wave detail: east southeast
5 feet at 6 seconds. 
.saturday night...east winds 15 to 20 knots, easing to 10 to
15 knots after midnight. seas 4 to 5 feet. wave detail: east
southeast 4 feet at 6 seconds. a slight chance of showers. 
.sunday...east northeast winds 10 to 15 knots. seas 3 to 5 feet.
wave detail: east 4 feet at 6 seconds. a slight chance of showers
in the morning, then a chance of showers in the afternoon. 
.sunday night...northeast winds 10 to 15 knots, veering to east
southeast after midnight. seas 4 to 6 feet. wave detail: east
4 feet at 6 seconds. a chance of showers. 
.monday...south winds 7 to 10 knots, becoming variable less than
10 knots. seas 3 to 5 feet. wave detail: east 4 feet at
6 seconds. a chance of showers. 
.tuesday...winds variable less than 10 knots. seas 4 to 6 feet.
wave detail: east 3 feet at 4 seconds, northwest 3 feet at
13 seconds and northeast 3 feet at 15 seconds. a slight chance of
showers.  

winds and seas higher in and near tstms.

$$

fzhw50 phfo 171318
cwfhfo
expires:202604180230;;522739

coastal waters forecast
national weather service honolulu hi
318 am hst fri apr 17 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz114-180230-
oahu windward waters-
318 am hst fri apr 17 2026

.today...east winds 10 to 15 knots. seas to 4 feet. wave detail:
east southeast 3 feet at 7 seconds. 
.tonight...east winds 15 to 20 knots. seas 4 to 5 feet. wave
detail: east 4 feet at 7 seconds. a slight chance of showers
after midnight. 
.saturday...east winds to 15 knots. seas 4 to 6 feet. wave
detail: east southeast 4 feet at 6 seconds. 
.saturday night...east winds 15 to 20 knots. seas 4 to 6 feet.
wave detail: east 5 feet at 6 seconds. a slight chance of showers
after midnight. 
.sunday...east winds to 15 knots. seas 5 to 6 feet. wave detail:
east southeast 5 feet at 6 seconds. a chance of showers in the
afternoon. 
.sunday night...east southeast winds to 15 knots. seas 5 to
6 feet. wave detail: east 5 feet at 7 seconds. a slight chance of
showers in the evening, then a chance of showers after midnight. 
.monday...southeast winds 10 to 15 knots, veering to south
southeast 7 to 10 knots in the afternoon, then becoming variable
less than 10 knots. seas 5 to 6 feet. wave detail: east 5 feet at
6 seconds and northwest 3 feet at 16 seconds. a chance of
showers. 
.tuesday...winds variable less than 10 knots. seas 5 to 6 feet.
wave detail: east 4 feet at 6 seconds, northwest 4 feet at
14 seconds and north northeast 4 feet at 15 seconds. a slight
chance of showers. a chance of showers after midnight.  

$$

fzhw50 phfo 171318
cwfhfo
expires:202604180230;;522740

coastal waters forecast
national weather service honolulu hi
318 am hst fri apr 17 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz115-180230-
oahu leeward waters-
318 am hst fri apr 17 2026

.today...east northeast winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: east southeast 4 feet at 5 seconds. 
.tonight...east northeast winds 15 to 20 knots. seas 4 to 5 feet.
wave detail: east southeast 5 feet at 6 seconds. 
.saturday...east winds 10 to 15 knots. seas 4 to 5 feet. wave
detail: east southeast 5 feet at 6 seconds. 
.saturday night...east winds 10 to 15 knots. seas 3 to 5 feet.
wave detail: east southeast 4 feet at 6 seconds. 
.sunday...east winds 7 to 10 knots. seas 3 to 4 feet. wave
detail: east southeast 4 feet at 6 seconds. a slight chance of
showers in the afternoon. 
.sunday night...northeast winds 7 to 10 knots, veering to east
southeast to 10 knots after midnight. seas 3 to 4 feet. wave
detail: east southeast 4 feet at 6 seconds. a slight chance of
showers in the evening, then a chance of showers after midnight. 
.monday...south southeast winds to 10 knots in the morning,
becoming variable less than 10 knots. seas 3 to 4 feet. wave
detail: east 3 feet at 6 seconds. a chance of showers. 
.tuesday...winds variable less than 10 knots. seas 3 to 4 feet.
wave detail: northwest 3 feet at 12 seconds. a slight chance of
showers.  

$$

fzhw50 phfo 171318
cwfhfo
expires:202604180230;;522741

coastal waters forecast
national weather service honolulu hi
318 am hst fri apr 17 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz116-180230-
kaiwi channel-
318 am hst fri apr 17 2026

.today...east northeast winds to 15 knots. seas 3 to 5 feet. wave
detail: east 4 feet at 5 seconds and south 3 feet at 13 seconds. 
.tonight...east northeast winds 15 to 20 knots. seas 4 to 5 feet.
wave detail: east 4 feet at 5 seconds. 
.saturday...east northeast winds to 15 knots. seas 4 to 5 feet.
wave detail: east 4 feet at 6 seconds. 
.saturday night...east winds 15 to 20 knots. seas 3 to 5 feet.
wave detail: east 5 feet at 6 seconds. 
.sunday...east winds 10 to 15 knots. seas 4 to 6 feet. wave
detail: east 5 feet at 6 seconds. a slight chance of showers in
the afternoon. 
.sunday night...east southeast winds 10 to 15 knots. seas 4 to
6 feet. wave detail: east 5 feet at 6 seconds. a slight chance of
showers after midnight. 
.monday...southeast winds 10 to 15 knots, veering to south
southeast 7 to 10 knots in the afternoon, then becoming variable
less than 10 knots. seas 4 to 6 feet. wave detail: east 4 feet at
6 seconds. a chance of showers in the morning, then a slight
chance of showers in the afternoon. a chance of showers through
the day. 
.tuesday...winds variable less than 10 knots, becoming north
northeast 7 to 10 knots in the evening, then becoming variable
less than 10 knots after midnight. seas 4 to 6 feet. wave detail:
north northeast 4 feet at 15 seconds, east northeast 3 feet at
5 seconds and northwest 3 feet at 14 seconds. a slight chance of
showers.  

$$