fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401901

coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026

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


phz113-220230-
kauai channel-
318 am hst thu may 21 2026

...small craft advisory in effect through early friday morning...

.today...east northeast winds 20 to 25 knots. seas 7 to 10 feet.
wave detail: east 8 feet at 8 seconds. isolated showers. 
.tonight...east northeast winds to 25 knots. seas 9 to 11 feet.
wave detail: east 9 feet at 8 seconds. isolated showers. 
.friday...east northeast winds to 25 knots. seas 8 to 10 feet.
wave detail: east northeast 9 feet at 8 seconds. isolated showers
in the afternoon. 
.friday night...east northeast winds 20 to 25 knots. seas 8 to
10 feet. wave detail: east northeast 8 feet at 7 seconds.
isolated showers. 
.saturday...east northeast winds 20 to 25 knots. seas 8 to
10 feet. wave detail: east northeast 8 feet at 7 seconds.
isolated showers. 
.saturday night...east northeast winds 20 to 25 knots. seas 8 to
10 feet. wave detail: east northeast 8 feet at 7 seconds.
isolated showers. 
.sunday...east northeast winds 20 to 25 knots. seas 7 to 9 feet.
wave detail: east northeast 8 feet at 7 seconds. isolated
showers. 
.monday...east northeast winds 20 to 25 knots. seas 7 to 9 feet.
wave detail: east northeast 7 feet at 7 seconds. isolated
showers.  

$$

fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401902

coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026

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


phz114-220230-
oahu windward waters-
318 am hst thu may 21 2026

...small craft advisory in effect through early friday morning...

.today...east northeast winds to 25 knots. seas 10 to 11 feet.
wave detail: east 9 feet at 8 seconds. isolated showers. 
.tonight...east northeast winds to 25 knots. seas 10 to 11 feet.
wave detail: east 9 feet at 8 seconds. isolated showers in the
evening, then scattered showers after midnight. 
.friday...east northeast winds 20 to 25 knots. seas 9 to 11 feet.
wave detail: east 9 feet at 8 seconds. isolated showers. 
.friday night...east northeast winds 20 to 25 knots. seas 10 to
11 feet. wave detail: east 8 feet at 7 seconds. isolated showers
in the evening, then scattered showers after midnight. 
.saturday...east northeast winds 20 to 25 knots. seas 9 to
11 feet. wave detail: east 8 feet at 7 seconds. scattered
showers, mainly in the morning. 
.saturday night...east northeast winds 20 to 25 knots. seas 9 to
11 feet. wave detail: east 8 feet at 7 seconds and north
northwest 3 feet at 14 seconds. isolated showers. 
.sunday...east winds 20 to 25 knots. seas 8 to 9 feet. wave
detail: east 8 feet at 7 seconds. isolated showers. scattered
showers after midnight. 
.monday...east northeast winds 20 to 25 knots. seas 8 to 9 feet.
wave detail: east 7 feet at 7 seconds. scattered showers .  

$$

fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401903

coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026

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


phz115-220230-
oahu leeward waters-
318 am hst thu may 21 2026

...small craft advisory in effect through early friday morning...

.today...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east southeast 8 feet at 8 seconds. isolated showers
this afternoon. 
.tonight...east northeast winds 25 to 30 knots. seas 7 to
10 feet. wave detail: east 9 feet at 8 seconds. 
.friday...east northeast winds to 25 knots. seas 6 to 8 feet.
wave detail: east 8 feet at 7 seconds. 
.friday night...east northeast winds 20 to 25 knots. seas 5 to
8 feet. wave detail: east northeast 8 feet at 7 seconds and south
3 feet at 17 seconds. 
.saturday...east northeast winds 20 to 25 knots. seas 5 to
7 feet, building to 6 to 9 feet in the afternoon. wave detail:
east northeast 7 feet at 7 seconds and south 3 feet at
15 seconds. 
.saturday night...east northeast winds 20 to 25 knots. seas 6 to
9 feet. wave detail: east northeast 7 feet at 7 seconds. 
.sunday...east northeast winds 20 to 25 knots. seas 5 to 7 feet.
wave detail: east northeast 6 feet at 7 seconds. 
.monday...east northeast winds 20 to 25 knots. seas 5 to 7 feet.
wave detail: east 6 feet at 6 seconds. isolated showers through
the night. isolated showers after midnight.  

$$

fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401904

coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026

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


phz116-220230-
kaiwi channel-
318 am hst thu may 21 2026

...small craft advisory in effect through early friday morning...

.today...east northeast winds 25 to 30 knots. seas 7 to 10 feet.
wave detail: east 9 feet at 7 seconds. isolated showers. 
.tonight...east northeast winds 25 to 30 knots. seas 8 to
11 feet. wave detail: east 9 feet at 7 seconds. 
.friday...east northeast winds to 25 knots. seas 7 to 10 feet.
wave detail: east northeast 9 feet at 7 seconds. 
.friday night...east northeast winds 20 to 25 knots. seas 7 to
10 feet. wave detail: east northeast 8 feet at 7 seconds and
south 3 feet at 17 seconds. isolated showers after midnight. 
.saturday...east northeast winds to 25 knots. seas 7 to 10 feet.
wave detail: east northeast 8 feet at 7 seconds and south 3 feet
at 16 seconds. isolated showers in the morning. 
.saturday night...east northeast winds 20 to 25 knots. seas 7 to
10 feet. wave detail: east northeast 8 feet at 7 seconds and
south 3 feet at 15 seconds. 
.sunday...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east northeast 8 feet at 7 seconds. 
.monday...east northeast winds 20 to 25 knots. seas 6 to 8 feet.
wave detail: east northeast 7 feet at 7 seconds. isolated
showers.  

$$