436
FZPQ52 PGUM 181900
CWFPQ2

Coastal Waters/Island Forecast for Western Micronesia
National Weather Service Tiyan GU
500 AM ChST Wed Aug 19 2026

Coastal waters extend out to 40 nautical miles

PMZ161-191115-
Palau Coastal Waters-
500 AM ChST Wed Aug 19 2026

.TODAY...West wind 5 to 15 kt. Wind waves 1 to 3 ft. Southwest swell
3 to 4 ft. Mostly sunny. Isolated showers. Highs near 88. Chance of
showers 20 percent.
.TONIGHT...West wind 5 to 10 kt. Wind waves 2 ft or less. Southwest
swell 3 to 4 ft. Mostly cloudy. Isolated showers and thunderstorms.
Lows around 78. Chance of showers 20 percent.
.THURSDAY...West wind 5 to 10 kt. Wind waves 2 ft or less. Southwest
swell 3 to 4 ft. Partly sunny. Scattered showers and isolated
thunderstorms. Highs near 87. Chance of showers 30 percent.
.THURSDAY NIGHT...West wind 10 to 15 kt. Wind waves 2 to 3 ft.
Southwest swell 3 to 4 ft. Cloudy. Numerous showers and isolated
thunderstorms. Lows around 78. Chance of showers 70 percent.
.FRIDAY AND SATURDAY...West wind 10 to 20 kt with gusts to 25 kt.
Wind waves 3 to 5 ft. Southwest swell 3 to 4 ft. Widespread locally
heavy showers and slight chance of thunderstorms. Highs in the mid
80s. Lows in the upper 70s. Chance of showers 80 percent.
.SUNDAY...West wind 10 to 20 kt. Wind waves 2 to 4 ft. Southwest
swell 5 to 6 ft. Mostly cloudy with a 50 percent chance of showers
and slight chance of thunderstorms. Highs in the mid 80s. Lows in the
upper 70s.

$$

PMZ171-191115-
Yap Coastal Waters-
500 AM ChST Wed Aug 19 2026

.TODAY...Northwest wind 5 to 15 kt. Wind waves 1 to 3 ft. West swell
4 to 5 ft and northwest 3 ft. Mostly cloudy. Scattered showers in
the morning becoming numerous in the afternoon. Isolated
thunderstorms. Highs near 86. Chance of showers 60 percent.
.TONIGHT...Northwest wind 10 to 15 kt. Wind waves 2 to 3 ft. West
swell 4 to 5 ft and northwest 3 ft. Cloudy. Numerous showers and
isolated thunderstorms. Lows around 78. Chance of showers 70 percent.
.THURSDAY...Northwest wind 5 to 15 kt. Wind waves 1 to 3 ft. West
swell 3 to 5 ft and northwest 3 ft. Widespread locally heavy showers
and isolated thunderstorms. Highs near 86. Chance of showers 80
percent.
.THURSDAY NIGHT...Northwest wind 5 to 15 kt. Wind waves 1 to 3 ft.
West swell 3 to 4 ft and northwest 3 ft. Widespread locally heavy
showers and isolated thunderstorms. Lows around 78. Chance of
showers 80 percent.
.FRIDAY...Northwest wind 10 kt. Wind waves 2 ft or less. Northwest
swell 4 to 6 ft. Widespread locally heavy showers and slight chance
of thunderstorms. Highs in the mid 80s. Lows in the upper 70s. Chance
of showers 80 percent.
.SATURDAY...West wind 5 to 15 kt. Wind waves 1 to 3 ft. West swell 5
to 7 ft. Mostly cloudy with a 50 percent chance of showers and
slight chance of thunderstorms. Highs in the mid 80s. Lows in the
upper 70s.
.SUNDAY...West wind 10 to 20 kt. Wind waves 2 to 4 ft. Southwest
swell 6 to 8 ft. Mostly cloudy with a 50 percent chance of showers
and slight chance of thunderstorms. Highs in the mid 80s. Lows in the
upper 70s.

$$

PMZ172-191115-
Chuuk Coastal Waters-
500 AM ChST Wed Aug 19 2026

...TROPICAL STORM WATCH IN EFFECT FOR CHUUK...
...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON...
...HIGH SURF ADVISORY ALONG WEST AND SOUTH FACING REEFS IN EFFECT
THROUGH FRIDAY AFTERNOON...
...A TROPICAL DEPRESSION 17W WILL BRING HEAVIER SHOWERS AND GUSTY
WINDS THROUGH THE REST OF THE WEEK...

.TODAY...West wind 15 to 25 kt with gusts up to 45 kt. Wind waves 3
to 5 ft. Southwest swell 4 to 5 ft and south 3 ft. Widespread locally
heavy showers and isolated thunderstorms. Highs near 85. Chance of
showers near 100 percent.
.WEDNESDAY NIGHT...West wind 15 to 25 kt with gusts to 45 kt. Wind
waves 3 to 5 ft. Southwest swell 4 to 5 ft and south 3 ft. Widespread
locally heavy showers and isolated thunderstorms. Lows around 75.
Chance of showers near 100 percent.
.THURSDAY...Southwest wind 15 to 25 kt with occasional gusts to 45
kt. Wind waves 5 to 7 ft. Southwest swell 5 to 6 ft. Widespread
locally heavy showers and isolated thunderstorms. Highs near 85.
Chance of showers 90 percent.
.THURSDAY NIGHT...Southwest wind 15 to 25 kt with occasional gusts
to 45 kt. Wind waves 5 to 7 ft. Southwest swell 5 to 7 ft. Cloudy.
Numerous showers and isolated thunderstorms. Lows around 78. Chance
of showers 70 percent.
.FRIDAY...Southwest wind 10 to 20 kt with frequent gusts to 30 kt.
Wind waves 4 to 6 ft. Southwest swell 5 to 7 ft. Mostly cloudy with
a 50 percent chance of showers and slight chance of thunderstorms.
Highs in the mid 80s. Lows in the upper 70s.
.SATURDAY...Southwest wind 10 to 20 kt. Wind waves 2 to 4 ft. South
swell 4 to 6 ft. Mostly cloudy. 20 percent chance of showers and
slight chance of thunderstorms. Highs in the upper 80s. Lows in the
upper 70s.
.SUNDAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft.
Southwest swell 4 to 5 ft. Mostly cloudy with a 30 percent chance of
showers and slight chance of thunderstorms. Highs in the upper 80s.
Lows in the upper 70s.

$$