940
FZPQ51 PGUM 180453
CWFPQ1

Coastal Waters/Island Forecast for Eastern Micronesia
National Weather Service Tiyan GU
253 PM ChST Tue Aug 18 2026

Coastal waters extend out to 40 nautical miles

PMZ173-182300-
Pohnpei Coastal Waters-
253 PM ChST Tue Aug 18 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM EARLY WEDNESDAY MORNING
THROUGH THURSDAY AFTERNOON...

.TONIGHT...Southwest wind 15 to 20 kt this evening, becoming 15 to
25 kt by sunrise. Isolated gusts to 30 knots are possible near
heavier showers or thunderstorms. Wind waves 3 to 4 ft. Southwest
swell 4 to 5 ft. Cloudy. Scattered showers this evening, becoming
numerous showers and isolated thunderstorms after midnight. Locally
heavy rainfall possible. Lows around 77. Chance of showers 70
percent.
.WEDNESDAY...Southwest wind 15 to 25 kt. Wind waves 3 to 5 ft.
Southwest swell 5 to 6 ft. Mostly Cloudy. Numerous showers and
isolated thunderstorms. Highs near 83. Chance of showers 60 percent.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Southwest wind 15 to 25
kt. Wind waves 4 to 5 ft. Southwest swell 6 to 7 ft. Mostly cloudy.
Scattered showers and isolated thunderstorms. Lows around 78. Chance
of showers 50 percent.
.FRIDAY...Southwest wind 5 to 15 kt. Wind waves 1 to 3 ft. South
swell 5 to 6 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.
.SATURDAY AND SUNDAY...Southwest wind 5 to 10 kt. Wind waves 2 ft or
less. South swell 5 to 6 ft. Mostly cloudy. Slight chance of
thunderstorms. Highs in the upper 80s. Lows in the upper 70s. Chance
of showers 20 percent.

$$

PMZ174-182300-
Kosrae Coastal Waters-
253 PM ChST Tue Aug 18 2026

...HIGH SURF ADVISORY IN EFFECT UNTIL 3 AM CHST FRIDAY...

.TONIGHT...West wind 5 to 10 kt. Wind waves 2 ft or less. South
swell 5 to 6 ft. Cloudy. Scattered showers this evening, becoming
numerous showers and isolated thunderstorms after midnight. Locally
heavy rainfall possible after midnight. Lows around 77. Chance of
showers 70 percent.
.WEDNESDAY...Southwest wind 10 kt. Wind waves 2 ft or less.
Southwest swell 5 to 6 ft. Partly sunny. Scattered showers and
isolated thunderstorms. Highs near 85. Chance of showers 40 percent.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Southwest wind 5 to 10 kt.
Wind waves 2 ft or less. South swell 5 to 6 ft. Mostly cloudy.
Scattered showers and isolated thunderstorms. Lows around 79. Highs
around 85. Chance of showers 40 percent, decreasing to 30 percent
Thursday night.
.FRIDAY THROUGH SUNDAY...Northwest wind 5 kt. Wind waves 2 ft or
less. South swell 5 to 6 ft. Mostly cloudy with a 40 percent chance
of showers and slight chance of thunderstorms. Highs in the mid to
upper 80s. Lows in the upper 70s.

$$

PMZ181-182300-
Majuro Coastal Waters-
253 PM ChST Tue Aug 18 2026

.TONIGHT...Northwest wind 5 kt. Wind waves 2 ft or less. Southeast
swell 4 to 5 ft. Mostly cloudy. Scattered showers and isolated
thunderstorms. Lows around 79. Chance of showers 40 percent.
.WEDNESDAY THROUGH THURSDAY NIGHT...West wind 5 kt. Wind waves 2 ft
or less. Southeast swell 5 to 6 ft. Mostly cloudy. Scattered showers
and isolated thunderstorms. Highs near 86. Lows around 80. Chance of
showers 50 percent, decreasing to 40 percent Thursday night.
.FRIDAY THROUGH SUNDAY...North wind 5 kt. Wind waves 2 ft or less.
Southeast swell 5 to 6 ft. Mostly cloudy with a 50 percent chance of
showers and slight chance of thunderstorms. Highs in the mid to
upper 80s. Lows around 80.

$$