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Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
568 FZMY50 PGUM 152007 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 607 AM ChST Tue Jul 16 2024 Marianas Waters out to 40 nautical miles PMZ150-160830- 607 AM ChST Tue Jul 16 2024 .Synopsis for Marianas Waters...Moderate to fresh trades will persist across the Marianas through Friday with occasional near gale gusts starting Thursday. Seas of 4 to 6 feet today will become 5 to 7 feet by end of the week due to winds and building secondary swell. An approaching trough will bring scattered showers and isolated thunderstorms for the rest of the week. $$ PMZ151>154-160830- MARIANAS COASTAL WATERS- 607 AM ChST Tue Jul 16 2024 .TODAY...East wind 15 kt. Wind waves 3 ft. East swell 4 to 5 ft. Scattered showers by afternoon. .TONIGHT...East wind 15 to 20 kt. Wind waves 3 to 4 ft. East swell 4 to 5 ft. Scattered showers and isolated thunderstorms. .WEDNESDAY...East wind 10 to 20 kt. Wind waves 2 to 4 ft. East swell 4 to 5 ft. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East wind 10 to 20 kt. Wind waves 2 to 4 ft. East swell 4 to 5 ft. Numerous showers and isolated thunderstorms. .THURSDAY...Southeast wind 10 to 20 kt with gusts to 30 kt. Wind waves 3 to 5 ft. East swell 4 to 5 ft. Chance of showers and thunderstorms. .FRIDAY...Southeast wind 10 to 20 kt with gusts to 30 kt. Wind waves 3 to 5 ft. Mixed swell east 3 to 5 ft and west 3 ft. Chance of showers and slight chance of thunderstorms. .SATURDAY...Southeast wind 5 to 10 kt. Wind waves 2 ft or less. Mixed swell east 4 to 5 ft and west 3 ft. Chance of showers and slight chance of thunderstorms. $$