fzhw50 phfo 151459
cwfhfo
expires:202608160315;;235863

coastal waters forecast
national weather service honolulu hi
459 am hst sat aug 15 2026

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


phz113-160315-
kauai channel-
459 am hst sat aug 15 2026

...small craft advisory in effect through late this afternoon...
...tropical storm warning in effect...

.today...northeast winds 20 to 25 knots. seas 8 to 10 feet. wave
detail: east 9 feet at 9 seconds and south 4 feet at 13 seconds.
scattered showers this afternoon. 
.tonight...tropical storm conditions expected. northeast winds
25 to 30 knots, rising to 30 to 40 knots after midnight. seas
10 to 13 feet, building to 14 to 19 feet after midnight. wave
detail: southeast 19 feet at 12 seconds, south 4 feet at
13 seconds and east 3 feet at 8 seconds. heavy showers. 
.sunday...tropical storm conditions expected. east winds 30 to
40 knots. seas 19 to 23 feet, subsiding to 14 to 19 feet in the
afternoon. wave detail: southeast 22 feet at 11 seconds, south
4 feet at 13 seconds and east 3 feet at 8 seconds. heavy showers
with a slight chance of thunderstorms. 
.sunday night...east southeast winds 20 to 25 knots, easing to
15 to 20 knots after midnight. seas 6 to 9 feet. wave detail:
east 8 feet at 8 seconds and south 4 feet at 15 seconds. numerous
heavy showers. 
.monday...east winds 15 to 20 knots. seas 6 to 7 feet. wave
detail: east northeast 6 feet at 6 seconds and south 4 feet at
14 seconds. scattered showers. 
.monday night...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east 5 feet at 5 seconds and south 4 feet at 13 seconds.
scattered showers, mainly in the evening. 
.tuesday...east northeast winds to 15 knots. seas 4 to 6 feet.
wave detail: east 5 feet at 5 seconds. isolated showers. 
.wednesday...east northeast winds 10 to 15 knots. seas 3 to
5 feet. wave detail: east northeast 4 feet at 5 seconds. isolated
showers, then scattered showers after midnight.  

winds and seas higher in and near tstms.

$$

fzhw50 phfo 151459
cwfhfo
expires:202608160315;;235864

coastal waters forecast
national weather service honolulu hi
459 am hst sat aug 15 2026

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


phz114-160315-
oahu windward waters-
459 am hst sat aug 15 2026

...small craft advisory in effect through late this afternoon...
...tropical storm warning in effect...

.today...east northeast winds 20 to 25 knots. seas 10 to 12 feet,
building to 11 to 14 feet this afternoon. wave detail: east
southeast 11 feet at 10 seconds and south 3 feet at 13 seconds.
isolated showers this morning, then scattered showers this
afternoon. 
.tonight...tropical storm conditions expected. east northeast
winds 25 to 35 knots, rising to 35 to 40 knots after midnight.
seas 12 to 15 feet, building to 14 to 19 feet after midnight.
wave detail: east southeast 17 feet at 9 seconds and south 3 feet
at 13 seconds. heavy showers. 
.sunday...tropical storm conditions expected. east winds 30 to
35 knots, easing to 25 to 30 knots in the afternoon. seas 14 to
18 feet, subsiding to 10 to 14 feet in the afternoon. wave
detail: east 17 feet at 9 seconds and south 3 feet at 13 seconds.
heavy showers with a slight chance of thunderstorms. 
.sunday night...east winds to 20 knots. seas 7 to 8 feet,
subsiding to 5 to 7 feet after midnight. wave detail: east 7 feet
at 7 seconds and south 3 feet at 15 seconds. scattered showers. 
.monday...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 6 feet at 6 seconds. scattered showers, mainly in
the morning. 
.monday night...east winds 15 to 20 knots. seas 4 to 5 feet. wave
detail: east southeast 5 feet at 6 seconds. isolated showers. 
.tuesday...east winds to 15 knots. seas 4 to 5 feet. wave detail:
east southeast 4 feet at 5 seconds. isolated showers, then
scattered showers after midnight. 
.wednesday...east northeast winds to 15 knots. seas 3 to 5 feet.
wave detail: east northeast 4 feet at 5 seconds. isolated showers
through the night, then scattered showers through the day.  

winds and seas higher in and near tstms.

$$

fzhw50 phfo 151459
cwfhfo
expires:202608160315;;235865

coastal waters forecast
national weather service honolulu hi
459 am hst sat aug 15 2026

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


phz115-160315-
oahu leeward waters-
459 am hst sat aug 15 2026

...small craft advisory in effect through late this afternoon...
...tropical storm warning in effect...

.today...northeast winds 25 to 30 knots. seas 8 to 11 feet. wave
detail: east southeast 10 feet at 8 seconds and south 4 feet at
13 seconds. scattered showers this afternoon. 
.tonight...tropical storm conditions expected. northeast winds
30 to 40 knots, becoming east northeast 40 to 50 knots after
midnight. seas 12 to 16 feet, building to 19 to 24 feet after
midnight. wave detail: southeast 24 feet at 11 seconds and south
4 feet at 13 seconds. heavy showers. a slight chance of
thunderstorms after midnight. 
.sunday...tropical storm conditions expected. east southeast
winds 35 to 45 knots, becoming southeast 25 to 30 knots in the
afternoon. seas 18 to 23 feet, subsiding to 10 to 14 feet in the
afternoon. wave detail: southeast 23 feet at 10 seconds and south
4 feet at 13 seconds. heavy showers with a slight chance of
thunderstorms. 
.sunday night...east southeast winds 15 to 20 knots, easing to
10 to 15 knots after midnight. seas 6 to 7 feet. wave detail:
south southeast 6 feet at 6 seconds and south 4 feet at
15 seconds. numerous heavy showers. 
.monday...east winds to 15 knots. seas 5 to 6 feet. wave detail:
east 4 feet at 6 seconds and south 4 feet at 15 seconds.
scattered showers. 
.monday night...east northeast winds to 15 knots. seas 4 to
6 feet. wave detail: east 4 feet at 5 seconds and south 4 feet at
13 seconds. isolated showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 3 to 5 feet.
wave detail: east 4 feet at 5 seconds. isolated showers in the
morning. isolated showers after midnight. 
.wednesday...east northeast winds 10 to 15 knots. seas 3 to
4 feet. wave detail: east northeast 3 feet at 4 seconds. isolated
showers in the morning. isolated showers through the day.  

winds and seas higher in and near tstms.

$$

fzhw50 phfo 151459
cwfhfo
expires:202608160315;;235866

coastal waters forecast
national weather service honolulu hi
459 am hst sat aug 15 2026

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


phz116-160315-
kaiwi channel-
459 am hst sat aug 15 2026

...small craft advisory in effect through early this morning...
...tropical storm warning in effect...

.today...tropical storm conditions possible. northeast winds
25 to 30 knots. seas 9 to 13 feet. wave detail: east 11 feet at
9 seconds and south southwest 4 feet at 13 seconds. isolated
showers this morning, then scattered showers this afternoon. 
.tonight...tropical storm conditions expected. east northeast
winds 35 to 45 knots. seas 12 to 16 feet, building to 18 to
23 feet after midnight. wave detail: east southeast 21 feet at
9 seconds, east 5 feet at 8 seconds and south 4 feet at
13 seconds. heavy showers. a slight chance of thunderstorms after
midnight. 
.sunday...tropical storm conditions possible. east southeast
winds 25 to 35 knots, veering to southeast 20 to 25 knots in the
afternoon. seas 14 to 19 feet, subsiding to 9 to 11 feet in the
afternoon. wave detail: east southeast 18 feet at 9 seconds, east
4 feet at 8 seconds and south 4 feet at 13 seconds. heavy showers
with a slight chance of thunderstorms. 
.sunday night...east winds 15 to 20 knots. seas 5 to 7 feet. wave
detail: east 5 feet at 7 seconds and south 4 feet at 14 seconds.
scattered showers. 
.monday...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east northeast 5 feet at 6 seconds and south 4 feet at
15 seconds. isolated showers. 
.monday night...east northeast winds 15 to 20 knots. seas 4 to
6 feet. wave detail: east 4 feet at 5 seconds and south 4 feet at
13 seconds. isolated showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 3 to 5 feet.
wave detail: east northeast 4 feet at 5 seconds. isolated showers
after midnight. 
.wednesday...east northeast winds 10 to 15 knots. seas 3 to
5 feet. wave detail: east northeast 4 feet at 6 seconds. isolated
showers.  

winds and seas higher in and near tstms.

$$