FZPQ52 PGUM 201902 CWFPQ2 Coastal Waters/Island Forecast for Western Micronesia National Weather Service Tiyan GU 502 AM ChST Mon Sep 21 2026 Coastal waters extend out to 40 nautical miles PMZ161-210815- Palau Coastal Waters- 502 AM ChST Mon Sep 21 2026 .TODAY...Southwest wind 5 to 15 kt. Wind waves 1 to 3 ft. North swell 3 to 4 ft. Partly sunny. Scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 30 percent. .TONIGHT...West wind 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell north 3 to 4 ft and southwest 3 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows around 77. Chance of showers 50 percent. .TUESDAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. North swell 3 to 5 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Highs near 87. Chance of showers 50 percent. .TUESDAY NIGHT...West wind 5 to 10 kt. Wind waves 2 ft or less. North swell 3 to 4 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows around 79. Chance of showers 30 percent. .WEDNESDAY...Southwest wind 5 to 10 kt. Wind waves 2 ft or less. North swell 3 to 4 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid to upper 80s. Lows in the upper 70s. .THURSDAY...Southwest wind 5 to 15 kt. Wind waves 1 to 3 ft. Northeast swell 3 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. .FRIDAY...Southwest wind 5 to 10 kt. Wind waves 2 ft or less. Northeast swell 3 ft. Mostly cloudy. Slight chance of showers. Highs in the upper 80s. Lows in the upper 70s. Chance of showers 20 percent. $$ PMZ171-210815- Yap Coastal Waters- 502 AM ChST Mon Sep 21 2026 ...HEAVY SHOWERS, THUNDERSTORMS AND GUSTY WEST WINDS ACROSS YAP STATE THROUGH MIDWEEK... .TODAY...West wind 10 to 15 kt with gusts to 25 kt near showers. Wind waves 2 to 4 ft. North swell 4 to 5 ft and north 3 ft. Mostly cloudy. Widespread locally heavy showers and isolated thunderstorms. Highs near 85. Chance of showers 90 percent. .TONIGHT...West wind 5 to 10 kt with gusts to 20 kt near showers. Wind waves 1 to 3 ft. Northwest swell 4 to 5 ft and north 3 ft. Widespread locally heavy showers and isolated thunderstorms. Lows around 75. Chance of showers 90 percent. .TUESDAY...West wind 5 to 10 kt with gusts to 20 kt near showers. Wind waves 2 ft or less. North swell 5 to 6 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 50 percent. .TUESDAY NIGHT...Southwest wind 5 to 15 kt. Wind waves 1 to 3 ft. North swell 4 to 5 ft and west 3 ft. Cloudy. Numerous locally heavy showers and isolated thunderstorms. Lows around 76. Chance of showers 70 percent. .WEDNESDAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. Mixed swell north 3 to 4 ft and west 3 ft. Cloudy. Locally heavy showers likely and slight chance of thunderstorms. Highs in the mid 80s. Lows in the mid 70s. Chance of showers 70 percent. .THURSDAY...Southwest wind 10 to 15 kt. Wind waves 2 to 3 ft. North swell 3 to 4 ft. Mostly cloudy with a 50 percent chance of showers and slight chance of thunderstorms. Highs in the mid 80s. Lows in the mid 70s. .FRIDAY...Southwest wind 5 to 10 kt. Wind waves 2 ft or less. Northeast swell 3 to 4 ft. Mostly cloudy with a 30 percent chance of showers and slight chance of thunderstorms. Highs in the upper 80s. Lows in the upper 70s. $$ PMZ172-210815- Chuuk Coastal Waters- 502 AM ChST Mon Sep 21 2026 .TODAY...Southwest to west wind 5 to 10 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Highs near 85. Chance of showers 50 percent. .TONIGHT...Southwest to west wind 5 to 10 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Mostly cloudy. Scattered showers and isolated thunderstorms. Lows near 77. Chance of showers 50 percent. .TUESDAY...West wind 5 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Partly sunny. Scattered showers and isolated thunderstorms. Highs near 86. Chance of showers 40 percent. .TUESDAY NIGHT...West wind 5 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Partly cloudy. Isolated showers and thunderstorms. Lows around 79. Chance of showers 20 percent. .WEDNESDAY AND THURSDAY...Southwest wind 5 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy with a 30 percent chance of showers and slight chance of thunderstorms. Highs in the upper 80s. Lows in the mid 70s. .FRIDAY...Southwest wind 5 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Mostly cloudy. Slight chance of showers. Highs in the upper 80s. Lows in the mid 70s. Chance of showers 20 percent. $$