Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
829 FZMY50 PGUM 090705 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 505 PM ChST Sat Nov 9 2024 Marianas Waters out to 40 nautical miles PMZ150-092145- 505 PM ChST Sat Nov 9 2024 .Synopsis for Marianas Waters...Combined seas of 4 to 6 feet and moderate winds expected through tonight. Seas and winds begin to increase tomorrow as a tropical disturbance (Invest 94W) approaches from Chuuk State. Winds and seas could become hazardous to small craft, especially for Guam and Rota waters as 94W looks to pass south of the coastal waters. Winds and seas begin to decrease beginning Monday night, but Tropical Depression 25W northwest of the Marshall Islands approaches from the east could impact the coastal waters beginning Tuesday night. $$ PMZ151-152-092145- Guam Coastal Waters-Rota Coastal Waters- 505 PM ChST Sat Nov 9 2024 .TONIGHT...East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East 4 ft at 9 seconds, east 3 ft at 5 seconds and west 2 ft at 11 seconds. .SUNDAY...East wind 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: East 5 ft at 9 seconds, east 3 to 4 ft at 6 seconds and west 2 ft at 10 seconds. Scattered showers and isolated thunderstorms in the afternoon. .SUNDAY NIGHT...East wind 20 kt with gusts to 30 kt. Seas 7 to 9 ft. Wave Detail: East 7 ft at 9 seconds and east 5 ft at 6 seconds. Numerous locally heavy showers with isolated thunderstorms. .MONDAY...East wind 15 to 20 kt with gusts to 30 kt. Seas 7 to 9 ft. Wave Detail: East 7 ft at 9 seconds, east 4 to 5 ft at 6 seconds and north 2 ft at 10 seconds. Numerous locally heavy showers with isolated thunderstorms. .MONDAY NIGHT...Southeast wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: East 6 ft at 9 seconds, southeast 2 to 3 ft at 4 seconds and north 2 ft at 9 seconds. Scattered showers with isolated thunderstorms. .TUESDAY...East wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: East 6 ft at 10 seconds, southeast 2 ft at 4 seconds and north 2 ft at 12 seconds. Scattered showers with isolated thunderstorms. .WEDNESDAY THROUGH THURSDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: Northeast 5 ft at 9 seconds, east 2 to 3 ft at 4 seconds and north 2 ft at 12 seconds. A chance of showers with a slight chance of thunderstorms. $$ PMZ153-154-092145- Tinian Coastal Waters-Saipan Coastal Waters- 505 PM ChST Sat Nov 9 2024 .TONIGHT...East wind 15 kt. Seas 5 to 6 ft. Wave Detail: East 5 ft at 9 seconds, east 3 ft at 5 seconds and west 2 ft at 11 seconds. .SUNDAY...East wind 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: Northeast 6 ft at 9 seconds, east 3 to 4 ft at 5 seconds and west 2 ft at 10 seconds. .SUNDAY NIGHT...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: East 6 ft at 9 seconds and east 3 to 4 ft at 6 seconds. Scattered showers with isolated thunderstorms. .MONDAY...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: East 7 ft at 9 seconds, east 3 to 4 ft at 5 seconds and north 2 ft at 10 seconds. Scattered showers with isolated thunderstorms. .MONDAY NIGHT...East wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: East 7 ft at 10 seconds, east 2 to 3 ft at 4 seconds and north 2 ft at 9 seconds. Scattered showers with isolated thunderstorms. .TUESDAY...East wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: East 7 ft at 10 seconds, east 2 ft at 4 seconds and north 2 ft at 12 seconds. Scattered showers with isolated thunderstorms. .WEDNESDAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: Northeast 5 ft at 10 seconds, east 2 to 3 ft at 4 seconds and north 2 ft at 12 seconds. A chance of showers with a slight chance of thunderstorms. .THURSDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: East 5 ft at 9 seconds, east 2 to 3 ft at 5 seconds and north 2 ft at 12 seconds. A chance of showers with a slight chance of thunderstorms. $$