541
FZPQ52 PGUM 171837
CWFPQ2

Coastal Waters/Island Forecast for Western Micronesia
National Weather Service Tiyan GU
437 AM ChST Tue Aug 18 2026

Coastal waters extend out to 40 nautical miles

PMZ161-181115-
Palau Coastal Waters-
437 AM ChST Tue Aug 18 2026

.TODAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. Southwest
swell 4 to 5 ft. Mostly sunny. Isolated light showers. Highs near
88. Chance of showers 10 percent.
.TONIGHT...Southwest wind 5 to 15 kt. Wind waves 1 to 3 ft.
Southwest swell 3 to 5 ft. Partly cloudy. Isolated showers. Lows
around 78. Chance of showers 20 percent.
.WEDNESDAY...Southwest wind 5 to 10 kt. Wind waves 2 ft or less.
Southwest swell 3 to 4 ft. Mostly sunny. Isolated showers. Highs
near 87. Chance of showers 20 percent.
.WEDNESDAY NIGHT...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 15 kt. Wind waves 1 to 3 ft. Southwest
swell 3 to 4 ft. Mostly cloudy with a 50 percent chance of showers
and slight chance of thunderstorms. Highs in the upper 80s. Lows in
the upper 70s.
.FRIDAY...West wind 10 to 20 kt. Wind waves 2 to 4 ft. Southwest
swell 4 to 6 ft. Showers likely and slight chance of thunderstorms.
Highs in the mid 80s. Lows in the upper 70s. Chance of showers 60
percent.
.SATURDAY...West wind 10 to 15 kt. Wind waves 2 to 3 ft. Southwest
swell 5 to 7 ft. Showers likely and slight chance of thunderstorms.
Highs in the mid 80s. Lows in the upper 70s. Chance of showers 70
percent.

$$

PMZ171-181115-
Yap Coastal Waters-
437 AM ChST Tue Aug 18 2026

.TODAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. West
swell 4 to 5 ft and northwest 3 ft. Mostly sunny. Isolated showers
and thunderstorms. Highs near 88. Chance of showers 20 percent.
.TONIGHT...West wind 5 to 10 kt. Wind waves 2 ft or less. West swell
4 to 5 ft and northwest 3 ft. Mostly cloudy. Scattered showers and
isolated thunderstorms. Lows around 78. Chance of showers
30 percent.
.WEDNESDAY...Northwest wind 5 to 10 kt. Wind waves 2 ft or less.
West swell 4 to 5 ft and northwest 3 ft. Partly sunny. Scattered
showers and isolated thunderstorms. Highs near 86. Chance of showers
40 percent.
.WEDNESDAY NIGHT...Northwest wind 5 to 10 kt. Wind waves 2 ft or
less. 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 4 ft and northwest 3 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.
.FRIDAY...Northwest wind 5 to 15 kt. Wind waves 1 to 3 ft. Northwest
swell 3 to 4 ft. Cloudy. Showers likely and slight chance of
thunderstorms. Highs in the mid 80s. Lows in the upper 70s. Chance of
showers 70 percent.
.SATURDAY...West wind 10 to 15 kt. Wind waves 2 to 3 ft. Southwest
swell 4 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.

$$

PMZ172-181115-
Chuuk Coastal Waters-
437 AM ChST Tue Aug 18 2026

...A TROPICAL DISTURBANCE NEARBY BRINGS HEAVIER SHOWERS AND GUSTY
WINDS THROUGH MUCH OF THE WEEK...
...CHOPPY SEAS WILL IMPACT CHUUK THROUGH THE WEEK WHICH COULD MAKE
INTER-ISLAND TRAVEL DIFFICULT AT TIMES...

.TODAY...West wind 10 to 15 kt. Gusts to 25 kt near heavier
showers. Wind waves 2 to 3 ft. Southwest swell 4 to 5 ft. Widespread
locally heavy showers and isolated thunderstorms. Highs near 85.
Chance of showers near 100 percent.
.TONIGHT...West wind 10 to 15 kt. Gusts to 25 kt near heavier
showers. Wind waves 2 to 3 ft. Southwest swell 3 to 5 ft and south 3
ft. Widespread locally heavy showers and isolated thunderstorms.
Lows around 76. Chance of precipitation 90 percent.
.WEDNESDAY...West wind 10 to 15 kt. Gusts to 25 kt near heavier
showers. Wind waves 2 to 3 ft. Southwest swell 3 to 5 ft and south 3
ft. Widespread locally heavy showers and isolated thunderstorms.
Highs near 86. Chance of showers 90 percent.
.WEDNESDAY NIGHT...West wind 10 to 15 kt. Gusts to 25 kt near heavier
showers. Wind waves 2 to 3 ft. Southwest swell 3 to 5 ft and south 3
ft. Widespread locally heavy showers and isolated thunderstorms.
Lows around 78. Chance of showers 90 percent.
.THURSDAY...Southwest wind 10 to 20 kt with gusts to 30 kt. Wind
waves 3 to 5 ft. Southwest swell 4 to 5 ft. Cloudy. Showers likely
and slight chance of thunderstorms. Highs in the mid 80s. Lows in the
upper 70s. Chance of showers 70 percent.
.FRIDAY...Southwest wind 10 to 20 kt with gusts to 30 kt. Wind waves
3 to 5 ft. Southwest swell 4 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.
.SATURDAY...Southwest wind 10 to 15 kt with gusts to 25 kt. Wind
waves 3 to 4 ft. South swell 5 to 6 ft. Mostly cloudy with a 40
percent chance of showers and slight chance of thunderstorms. Highs
in the upper 80s. Lows in the upper 70s.

$$