Coastal Waters Forecast
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
657 FZMY50 PGUM 091758 CWFGUM Coastal Waters Forecast for the Mariana Islands National Weather Service Tiyan GU 358 AM ChST Mon Nov 10 2025 Marianas Waters out to 40 nautical miles PMZ150-100815- 358 AM ChST Mon Nov 10 2025 .Synopsis for Marianas Waters... Gentle to moderate trades will prevail across the Marianas for much of this week. Combined seas of 5 to 7 feet, comprised of a easterly swell, northerly swell, and westerly swell from distant Typhoon Fung-wong (32W), are expected to persist for several days while varying in strength throughout the week. $$ PMZ151>154-100815- MARIANAS COASTAL WATERS- 358 AM ChST Mon Nov 10 2025 .TODAY...East wind 10 kt. Seas 5 to 7 ft. Wave Detail: North 4 ft at 10 seconds, west 4 ft at 11 seconds, east 3 ft at 11 seconds and east 2 ft at 4 seconds. .TONIGHT...East wind 10 kt. Seas 5 to 7 ft. Wave Detail: North 4 ft at 10 seconds, west 4 ft at 10 seconds, east 3 ft at 11 seconds and east 2 ft at 4 seconds. .TUESDAY...East wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: North 4 ft at 10 seconds, east 3 ft at 11 seconds, west 3 ft at 11 seconds and east 3 ft at 4 seconds. .TUESDAY NIGHT...East wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: North 5 ft at 10 seconds, east 3 ft at 11 seconds, east 3 ft at 4 seconds and west 2 ft at 11 seconds. .WEDNESDAY THROUGH FRIDAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: East 5 ft at 9 seconds, east 3 ft at 4 seconds and north 3 ft at 12 seconds. $$