Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
876 FZMY50 PGUM 210537 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 337 PM ChST Sat Sep 21 2024 Marianas Waters out to 40 nautical miles PMZ150-212215- 337 PM ChST Sat Sep 21 2024 .Synopsis for Marianas Waters...Light to gentle trades and isolated showers and thunderstorms continue for the region tonight. Seas of 3 feet are expected to increase slightly around Sunday then decrease to 2 to 3 feet late week. Expect an increase in the chance of showers and thunderstorms this coming week as a monsoon trough develops over the region. $$ PMZ151>154-212215- MARIANAS COASTAL WATERS- 337 PM ChST Sat Sep 21 2024 .TONIGHT...East wind 10 kt. Wind waves 2 ft or less. East swell 3 ft. Isolated thunderstorms. .SUNDAY AND SUNDAY NIGHT...Northeast wind 5 to 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. .MONDAY AND MONDAY NIGHT...Northeast wind 5 to 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Scattered showers. .TUESDAY...Northeast wind 5 to 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Chance of showers. .WEDNESDAY...Northeast wind 5 to 10 kt. Wind waves 2 ft or less. Northeast swell 3 to 4 ft. Chance of showers and slight chance of thunderstorms. .THURSDAY...Northwest wind 5 to 10 kt. Wind waves 2 ft or less. Northeast swell 3 to 4 ft. Chance of showers and slight chance of thunderstorms. $$