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(1/5)
Latest Coastal Waters Forecast by PHFO
Issued 5/21/2026 3:18 AM US/Hawaii.
Valid through 5/21/2026 4:30 PM US/Hawaii.
fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401905
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.
phz117-220230-
maui county windward waters-
318 am hst thu may 21 2026
...small craft advisory in effect through early friday morning...
.today...east winds 20 to 25 knots, rising to 25 to 30 knots this
afternoon. seas 10 to 11 feet. wave detail: east 8 feet at
8 seconds. scattered showers.
.tonight...east northeast winds 25 to 30 knots, easing to 20 to
25 knots after midnight. seas 10 to 11 feet. wave detail: east
8 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 10 feet.
wave detail: east 8 feet at 7 seconds. isolated showers.
.friday night...east northeast winds 20 to 25 knots. seas 9 to
10 feet. wave detail: east 8 feet at 7 seconds. scattered
showers.
.saturday...east northeast winds 20 to 25 knots. seas 9 to
10 feet. wave detail: east 8 feet at 7 seconds. scattered showers
in the morning. isolated showers in the afternoon.
.saturday night...east winds 20 to 25 knots. seas 8 to 10 feet.
wave detail: east 7 feet at 7 seconds and north northwest 3 feet
at 14 seconds. isolated showers in the evening. scattered showers
after midnight.
.sunday...east winds 20 to 25 knots. seas 7 to 8 feet. wave
detail: east 7 feet at 7 seconds. isolated showers. scattered
showers after midnight.
.monday...east winds 20 to 25 knots. seas 7 to 8 feet. wave
detail: east 7 feet at 6 seconds. scattered showers.
$$
(2/5)
Latest Coastal Waters Forecast by PHFO
Issued 5/21/2026 3:18 AM US/Hawaii.
Valid through 5/21/2026 4:30 PM US/Hawaii.
fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401906
coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz118-220230-
maui county leeward waters-
318 am hst thu may 21 2026
...small craft advisory in effect through early friday morning...
.today...east northeast winds 20 to 25 knots. seas 5 to 8 feet.
wave detail: east southeast 8 feet at 8 seconds. isolated showers
this afternoon.
.tonight...east northeast winds 20 to 25 knots. seas 5 to 8 feet.
wave detail: east 8 feet at 8 seconds.
.friday...east northeast winds 20 to 25 knots. seas 5 to 7 feet.
wave detail: east 7 feet at 7 seconds and south 3 feet at
17 seconds.
.friday night...northeast winds 20 to 25 knots, becoming east
northeast 15 to 20 knots after midnight. seas 5 to 7 feet. wave
detail: east 6 feet at 6 seconds and south 3 feet at 17 seconds.
.saturday...east northeast winds 15 to 20 knots. seas 5 to
7 feet. wave detail: east 6 feet at 6 seconds and south 3 feet at
16 seconds.
.saturday night...east northeast winds 15 to 20 knots. seas 5 to
7 feet. wave detail: east 6 feet at 6 seconds and south 3 feet at
15 seconds.
.sunday...east northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. seas 5 to 7 feet. wave detail: east
5 feet at 6 seconds.
.monday...east northeast winds 15 to 20 knots. seas 5 to 7 feet.
wave detail: east southeast 5 feet at 6 seconds. isolated
showers.
$$
(3/5)
Latest Coastal Waters Forecast by PHFO
Issued 5/21/2026 3:18 AM US/Hawaii.
Valid through 5/21/2026 4:30 PM US/Hawaii.
fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401907
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.
phz119-220230-
maalaea bay-
318 am hst thu may 21 2026
...gale warning in effect through early friday morning...
.today...north northeast winds to 35 knots. seas to 2 feet or
less. wave detail: northeast 2 feet at 4 seconds.
.tonight...north winds to 35 knots. seas to 2 feet or less. wave
detail: north 2 feet at 4 seconds.
.friday...north winds to 30 knots, easing to 25 knots in the
afternoon. seas to 2 feet or less. wave detail: north northeast
2 feet at 4 seconds.
.friday night...north winds to 25 knots. seas to 2 feet or less.
wave detail: north northeast 2 feet at 4 seconds.
.saturday...north winds to 25 knots. seas to 2 feet or less. wave
detail: north northeast 2 feet at 4 seconds.
.saturday night...north winds to 25 knots. seas to 2 feet or
less. wave detail: north northeast 2 feet at 4 seconds.
.sunday...north winds to 25 knots. seas to 2 feet or less. wave
detail: north northeast 2 feet at 3 seconds.
.monday...north winds to 25 knots. seas to 2 feet or less. wave
detail: north northeast 2 feet at 3 seconds.
$$
(4/5)
Latest Coastal Waters Forecast by PHFO
Issued 5/21/2026 3:18 AM US/Hawaii.
Valid through 5/21/2026 4:30 PM US/Hawaii.
fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401908
coastal waters forecast
national weather service honolulu hi
318 am hst thu may 21 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz120-220230-
pailolo channel-
318 am hst thu may 21 2026
...gale warning in effect through early friday morning...
.today...east northeast winds 30 to 35 knots. seas 5 to 7 feet.
wave detail: east 7 feet at 6 seconds. isolated showers this
morning. scattered showers this afternoon.
.tonight...east northeast winds 30 to 35 knots. seas 5 to 7 feet.
wave detail: east 7 feet at 6 seconds. isolated showers in the
evening.
.friday...east northeast winds 25 to 30 knots. seas 5 to 7 feet.
wave detail: east 7 feet at 6 seconds.
.friday night...east northeast winds 20 to 25 knots. seas 5 to
7 feet. wave detail: east northeast 6 feet at 6 seconds.
.saturday...east northeast winds 20 to 25 knots. seas 5 to
7 feet. wave detail: east northeast 5 feet at 6 seconds.
.saturday night...east northeast winds 20 to 25 knots. seas 5 to
7 feet. wave detail: east northeast 5 feet at 7 seconds.
.sunday...east northeast winds 20 to 25 knots. seas 4 to 6 feet.
wave detail: east northeast 5 feet at 7 seconds.
.monday...east northeast winds 20 to 25 knots. seas 4 to 6 feet.
wave detail: east northeast 5 feet at 6 seconds. isolated
showers.
$$
(5/5)
Latest Coastal Waters Forecast by PHFO
Issued 5/21/2026 3:18 AM US/Hawaii.
Valid through 5/21/2026 4:30 PM US/Hawaii.
fzhw50 phfo 211318
cwfhfo
expires:202605220230;;401909
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.
phz121-220230-
alenuihaha channel-
318 am hst thu may 21 2026
...gale warning in effect through early friday morning...
.today...east northeast winds 30 to 35 knots. seas 8 to 10 feet.
wave detail: east 10 feet at 7 seconds. scattered showers.
.tonight...east northeast winds 30 to 35 knots. seas 8 to
10 feet. wave detail: east 10 feet at 8 seconds. scattered
showers in the evening.
.friday...east northeast winds 25 to 30 knots. seas 7 to 9 feet.
wave detail: east 9 feet at 7 seconds and south southwest 3 feet
at 14 seconds. isolated showers in the afternoon.
.friday night...east northeast winds 25 to 30 knots. seas 7 to
9 feet. wave detail: east 9 feet at 7 seconds and south southwest
3 feet at 17 seconds. scattered showers.
.saturday...east northeast winds 25 to 30 knots. seas 6 to
9 feet. wave detail: east northeast 8 feet at 7 seconds and south
southwest 3 feet at 16 seconds. scattered showers in the morning.
isolated showers in the afternoon.
.saturday night...east northeast winds 25 to 30 knots. seas 6 to
9 feet. wave detail: east northeast 8 feet at 6 seconds and south
3 feet at 15 seconds. scattered showers.
.sunday...east northeast winds 25 to 30 knots, easing to 20 to
25 knots after midnight. seas 6 to 8 feet. wave detail: east
northeast 7 feet at 6 seconds and south 3 feet at 14 seconds.
isolated showers. scattered showers after midnight.
.monday...east northeast winds 20 to 25 knots. seas 6 to 7 feet.
wave detail: east 7 feet at 6 seconds. isolated showers through
the night. scattered showers in the evening, then isolated
showers after midnight.
$$
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