Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
702 FZMY50 PGUM 071921 CCA CWFGUM Coastal Waters Forecast for the Mariana Islands...CORRECTED National Weather Service Tiyan GU 521 AM ChST Sat Nov 8 2025 Marianas Waters out to 40 nautical miles PMZ150-080830- 521 AM ChST Sat Nov 8 2025 Corrected reference to Typhoon Fung-wong. .Synopsis for Marianas Waters... Moderate to fresh winds with occasional strong gusts will prevail across the region today, as Typhoon Fung-wong (32W) continues its trek toward the Philippines. Winds and seas continue to be on the decrease as Fung-wong moves away, and are expected to fall below levels hazardous to small craft early this morning. However, seas will remain choppy through the weekend due to multiple swells continuing to mix in. Combined seas of 7 to 9 feet, comprised of lingering southerly swell, background easterly swells and localized wind waves, are expected for today, gradually relaxing by 2 to 3 feet through early next week. $$ PMZ151>154-080830- MARIANAS COASTAL WATERS- 521 AM ChST Sat Nov 8 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY THIS MORNING... .TODAY...Southeast wind 10 to 20 kt. Seas 7 to 9 ft. Wave Detail: Southwest 7 ft at 10 seconds, east 4 ft at 9 seconds and southeast 4 ft at 5 seconds. Scattered showers with isolated thunderstorms. .TONIGHT...Southeast wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: Southwest 6 ft at 10 seconds, east 4 ft at 9 seconds and southeast 3 ft at 4 seconds. Scattered showers. .SUNDAY...Southeast wind 10 kt. Seas 6 to 7 ft. Wave Detail: West 5 ft at 10 seconds, east 4 ft at 9 seconds and southeast 2 ft at 4 seconds. .SUNDAY NIGHT...East wind 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: West 5 ft at 10 seconds, east 4 ft at 9 seconds and east 2 ft at 4 seconds. .MONDAY...East wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: West 3 ft at 10 seconds, east 3 ft at 11 seconds, north 3 ft at 11 seconds and east 3 ft at 4 seconds. .TUESDAY THROUGH WEDNESDAY...East wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: North 4 ft at 11 seconds, east 3 ft at 4 seconds and west 3 ft at 11 seconds. A chance of showers. $$