![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
889 FZMY50 PGUM 291958 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 558 AM ChST Sun Jun 30 2024 Marianas Waters out to 40 nautical miles PMZ150-300845- 558 AM ChST Sun Jun 30 2024 .Synopsis for Marianas Waters...Gentle to moderate trade winds and combined seas of 3 to 5 feet will continue this week. $$ PMZ151-152-300845- Guam Coastal Waters-Rota Coastal Waters- 558 AM ChST Sun Jun 30 2024 .TODAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 5 ft. Scattered showers. .TONIGHT...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 4 to 5 ft. Scattered showers. .MONDAY THROUGH TUESDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 4 ft. .WEDNESDAY AND THURSDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. Chance of showers Wednesday. $$ PMZ153-154-300845- Tinian Coastal Waters-Saipan Coastal Waters- 558 AM ChST Sun Jun 30 2024 .TODAY...East wind 10 kt. Wind waves 2 ft or less. East swell 3 to 5 ft. .TONIGHT THROUGH TUESDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 5 ft. .WEDNESDAY AND THURSDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 3 to 4 ft. $$