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fzhw50 phfo 181310
cwfhfo
expires:202605190215;;767669

coastal waters forecast
national weather service honolulu hi
310 am hst mon may 18 2026

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


phz113-190215-
kauai channel-
310 am hst mon may 18 2026

.today...east northeast winds 15 to 20 knots. seas 5 to 6 feet.
wave detail: east 5 feet at 6 seconds and south southwest 3 feet
at 14 seconds. isolated showers. 
.tonight...east northeast winds 15 to 20 knots. seas 5 to 6 feet.
wave detail: east 5 feet at 6 seconds and south southwest 3 feet
at 14 seconds. scattered showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 5 to 7 feet.
wave detail: east 5 feet at 6 seconds and south southwest 3 feet
at 18 seconds. scattered showers, mainly in the morning. 
.tuesday night...east northeast winds to 20 knots. seas 5 to
7 feet. wave detail: east 5 feet at 6 seconds. isolated showers. 
.wednesday...east northeast winds 20 to 25 knots. seas 5 to
7 feet. wave detail: east northeast 7 feet at 7 seconds. isolated
showers. 
.wednesday night...east northeast winds to 20 knots. seas 7 to
8 feet. wave detail: east northeast 8 feet at 7 seconds. isolated
showers. 
.thursday...east northeast winds 20 to 25 knots. seas 8 to
10 feet. wave detail: east northeast 9 feet at 8 seconds and
north northeast 3 feet at 7 seconds. isolated showers in the
morning. isolated showers through the day. 
.friday...east northeast winds 20 to 25 knots. seas 8 to 10 feet.
wave detail: northeast 9 feet at 7 seconds. isolated showers in
the morning. isolated showers through the day.  

$$
fzhw50 phfo 181310
cwfhfo
expires:202605190215;;767670

coastal waters forecast
national weather service honolulu hi
310 am hst mon may 18 2026

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


phz114-190215-
oahu windward waters-
310 am hst mon may 18 2026

.today...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 6 feet at 7 seconds. scattered showers. 
.tonight...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 6 feet at 7 seconds. isolated showers. 
.tuesday...east winds 15 to 20 knots. seas 6 to 7 feet. wave
detail: east 6 feet at 7 seconds. isolated showers. 
.tuesday night...east winds to 20 knots. seas 6 to 7 feet. wave
detail: east 6 feet at 7 seconds and north northwest 3 feet at
10 seconds. scattered showers, mainly in the evening. 
.wednesday...east winds to 20 knots. seas to 6 feet, building to
7 to 8 feet in the afternoon. wave detail: east 8 feet at
8 seconds. isolated showers in the morning, then scattered
showers in the afternoon. 
.wednesday night...east northeast winds 20 to 25 knots. seas to
8 feet. wave detail: east 8 feet at 8 seconds. isolated showers. 
.thursday...east northeast winds 20 to 25 knots. seas 9 to
10 feet. wave detail: east 9 feet at 8 seconds and north
northeast 3 feet at 7 seconds. isolated showers in the morning.
isolated showers through the day. 
.friday...east northeast winds 20 to 25 knots. seas 9 to 10 feet.
wave detail: east 9 feet at 8 seconds and north northeast 3 feet
at 10 seconds. isolated showers in the morning. isolated showers
through the day.  

$$
fzhw50 phfo 181310
cwfhfo
expires:202605190215;;767671

coastal waters forecast
national weather service honolulu hi
310 am hst mon may 18 2026

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


phz115-190215-
oahu leeward waters-
310 am hst mon may 18 2026

.today...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east 5 feet at 6 seconds and south southwest 3 feet at
14 seconds. isolated showers this morning. 
.tonight...east northeast winds 15 to 20 knots. seas 5 to 6 feet.
wave detail: east 5 feet at 6 seconds and south southwest 3 feet
at 14 seconds. isolated showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 5 to 6 feet.
wave detail: east 5 feet at 6 seconds and south southwest 3 feet
at 18 seconds. isolated showers in the morning. 
.tuesday night...east northeast winds 15 to 20 knots. seas 5 to
6 feet. wave detail: east 5 feet at 6 seconds. isolated showers. 
.wednesday...east northeast winds 15 to 20 knots, rising to 20 to
25 knots in the afternoon. seas 4 to 6 feet. wave detail: east
northeast 6 feet at 7 seconds. isolated showers. 
.wednesday night...east northeast winds 20 to 25 knots. seas 5 to
8 feet. wave detail: east northeast 8 feet at 7 seconds. 
.thursday...east northeast winds 20 to 25 knots. seas 6 to
9 feet. wave detail: east northeast 9 feet at 7 seconds. 
.friday...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east northeast 8 feet at 7 seconds.  

$$
fzhw50 phfo 181310
cwfhfo
expires:202605190215;;767672

coastal waters forecast
national weather service honolulu hi
310 am hst mon may 18 2026

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


phz116-190215-
kaiwi channel-
310 am hst mon may 18 2026

.today...east northeast winds to 20 knots. seas 5 to 6 feet. wave
detail: east northeast 6 feet at 6 seconds and south southwest
3 feet at 14 seconds. isolated showers. 
.tonight...east northeast winds to 20 knots. seas 5 to 7 feet.
wave detail: east 6 feet at 6 seconds and south southwest 3 feet
at 14 seconds. isolated showers. 
.tuesday...east northeast winds to 20 knots. seas 5 to 7 feet.
wave detail: east 6 feet at 6 seconds and south southwest 3 feet
at 14 seconds. isolated showers. 
.tuesday night...east northeast winds to 20 knots. seas 5 to
6 feet. wave detail: east 6 feet at 6 seconds. isolated showers. 
.wednesday...east northeast winds 20 to 25 knots. seas 5 to
6 feet, building to 5 to 8 feet in the afternoon. wave detail:
east northeast 8 feet at 7 seconds. isolated showers. 
.wednesday night...east northeast winds 20 to 25 knots. seas 6 to
8 feet. wave detail: east northeast 8 feet at 7 seconds. isolated
showers after midnight. 
.thursday...east northeast winds 20 to 25 knots. seas 7 to
10 feet. wave detail: east northeast 9 feet at 8 seconds and
north northeast 3 feet at 7 seconds. isolated showers in the
morning. isolated showers after midnight. 
.friday...east northeast winds 20 to 25 knots. seas 7 to 10 feet.
wave detail: northeast 9 feet at 7 seconds. isolated showers in
the morning. isolated showers after midnight.  

$$
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