927
FZPQ52 PGUM 200700
CWFPQ2

Coastal Waters/Island Forecast for Western Micronesia
National Weather Service Tiyan GU
500 PM ChST Thu Aug 20 2026

Coastal waters extend out to 40 nautical miles

PMZ161-202000-
Palau Coastal Waters-
500 PM ChST Thu Aug 20 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM FRIDAY TO 6 PM CHST
SATURDAY...
...ENHANCED MONSOON SURGE TO BRING HEAVY RAINFALL AND GUSTY WINDS TO
PALAU AND YAP THE NEXT SEVERAL DAYS...

.TONIGHT...West to northwest wind 10 to 20 kt. Wind waves 2 to 4 ft.
West swell 3 to 4 ft. Cloudy. Scattered showers, becoming numerous
and heavy before midnight. Isolated thunderstorms. Lows around 76.
Chance of showers 70 percent.
.FRIDAY AND FRIDAY NIGHT...West to northwest wind 15 to 25 kt with
occasional gusts to 35 kt near heavier showers. Wind waves 2 to 4 ft.
West swell 3 to 4 ft. Cloudy. Widespread heavy showers and isolated
thunderstorms. Highs near 85. Lows around 76. Chance of showers 80
percent.
.SATURDAY...West wind 20 to 25 kt. Wind waves 5 to 6 ft. West swell
4 to 6 ft. Cloudy. Numerous showers and isolated thunderstorms.
Locally heavy showers possible. Highs near 86. Chance of showers 70
percent.
.SATURDAY NIGHT...West wind 15 to 20 kt. Wind waves 3 to 5 ft.
Southwest swell 5 to 6 ft. Mostly cloudy. Scattered showers and
isolated thunderstorms. Lows around 78. Chance of showers 50 percent.
.SUNDAY...West wind 15 to 20 kt. Wind waves 4 to 5 ft. Southwest
swell 3 to 5 ft. Mostly cloudy with a 40 percent chance of showers.
Highs in the upper 80s. Lows in the upper 70s.
.MONDAY AND TUESDAY...Southwest wind 10 to 15 kt. Wind waves 3 to 4
ft. West swell 3 to 5 ft. Mostly cloudy. A 20 percent chance of
showers. Highs in the upper 80s. Lows in the upper 70s. Chance of
showers 20 percent.

$$

PMZ171-202000-
Yap Coastal Waters-
500 PM ChST Thu Aug 20 2026

...ENHANCED MONSOON SURGE TO BRING HEAVY RAINFALL AND GUSTY WINDS TO
PALAU AND YAP THE NEXT SEVERAL DAYS...

.TONIGHT...Northwest to north wind 5 to 10 kt with occasional gusts
to 25 kt near heavier showers. Wind waves 2 ft or less. Southwest
swell 3 to 5 ft. Cloudy. Numerous heavy showers and isolated
thunderstorms. Lows around 77. Chance of showers 70 percent.
.FRIDAY...North wind 5 kt veering to the west late afternoon. Wind
waves 2 ft or less. Southwest swell 3 to 5 ft. Cloudy. Numerous
heavy showers and isolated thunderstorms. Highs near 85. Chance of
showers 70 percent.
.FRIDAY NIGHT...West wind 15 kt with gusts to 25 kt possible. Wind
waves 3 ft. Southwest swell 3 to 5 ft. Mostly cloudy. Numerous
showers and isolated thunderstorms. Locally heavy showers possible.
Lows around 78. Chance of showers 60 percent.
.SATURDAY...West wind 10 to 15 kt. Wind waves 2 to 3 ft. West swell
3 to 5 ft. Mostly cloudy. Scattered showers and isolated
thunderstorms. Highs near 86. Chance of showers 50 percent.
.SATURDAY NIGHT...West wind 10 to 15 kt. Wind waves 2 to 3 ft.
Southwest swell 4 to 6 ft. Mostly cloudy. Scattered showers and
isolated thunderstorms. Lows around 77. Chance of showers 50 percent.
.SUNDAY...West wind 15 to 20 kt. Wind waves 4 to 5 ft. West 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.
.MONDAY AND TUESDAY...Southwest wind 15 to 25 kt. Wind waves 4 to 6 ft.
West 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.

$$

PMZ172-202000-
Chuuk Coastal Waters-
500 PM ChST Thu Aug 20 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 5 PM CHST FRIDAY ALONG
SOUTH AND WEST FACING REEFS...

.TONIGHT...Southwest wind 20 to 30 kt. Wind waves 5 to 7 ft. South
to southwest swell 5 to 8 ft. Mostly cloudy. Scattered showers. Lows
around 78. Chance of showers 50 percent.
.FRIDAY...South wind 15 to 25 kt. Wind waves 4 to 6 ft. South to
southwest swell 5 to 7 ft. Mostly cloudy. Scattered showers. Highs
near 86. Chance of showers 40 percent.
.FRIDAY NIGHT...South wind 10 to 20 kt. Wind waves 3 to 5 ft.
Southwest swell 6 to 7 ft. Mostly cloudy. Scattered showers and
isolated thunderstorms. Lows around 78. Chance of showers 50 percent.
.SATURDAY...Southwest wind 10 to 15 kt. Wind waves 3 to 4 ft.
Southwest swell 6 to 7 ft. Mostly cloudy. Scattered showers and
isolated thunderstorms. Highs near 87. Chance of showers 50 percent.
.SATURDAY NIGHT...Southwest wind 5 to 10 kt. Wind waves 2 ft or
less. Southwest swell 5 to 6 ft. Mostly cloudy. Scattered showers
and isolated thunderstorms. Lows around 78. Chance of showers
50 percent.
.SUNDAY THROUGH TUESDAY...Southwest wind 10 to 15 kt. Wind waves 2
to 3 ft. Southwest swell 4 to 5 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.

$$