![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
291 FZMY50 PGUM 301809 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 409 AM ChST Mon Jul 1 2024 Marianas Waters out to 40 nautical miles PMZ150-011000- 409 AM ChST Mon Jul 1 2024 .Synopsis for Marianas Waters...Gentle to moderate trade winds and combined seas of 3 to 5 feet will continue this week. Passing minor disturbances to the south will bring low-end patchy showers to Guam and Rota for the next several days. $$ PMZ151-152-011000- Guam Coastal Waters-Rota Coastal Waters- 409 AM ChST Mon Jul 1 2024 .TODAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. Scattered showers and a slight chance of thunderstorms. .TONIGHT...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. .TUESDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. Scattered showers. Isolated thunderstorms Guam waters. .TUESDAY NIGHT...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. Scattered showers Guam waters. .WEDNESDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 4 ft. Scattered showers and isolated thunderstorms. .THURSDAY AND FRIDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 4 ft. Chance of showers and slight chance of thunderstorms. $$ PMZ153-154-011000- Tinian Coastal Waters-Saipan Coastal Waters- 409 AM ChST Mon Jul 1 2024 .TODAY...East wind 10 to 15 kt. Wind waves 2 ft or less. East swell 4 ft. .TONIGHT THROUGH TUESDAY NIGHT...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. .WEDNESDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Isolated thunderstorms. .THURSDAY AND FRIDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 4 to 5 ft. Slight chance of thunderstorms. $$