FZMY50 PGUM 090636

CWFGUM



Coastal Waters Forecast for the Mariana Islands

National Weather Service Tiyan GU

436 PM ChST Fri May 9 2025



Marianas Waters out to 40 nautical miles



PMZ150-092200-

436 PM ChST Fri May 9 2025



.Synopsis for Marianas Waters...Mainly moderate trade winds are 

expected for much of the week. Combined seas of 4 to 6 feet will

build to between 5 and 7 feet early next week as a east- 

northeast swell may move into the region. Sea conditions will 

remain benign through the period.



$$



PMZ151>154-092200-

MARIANAS COASTAL WATERS-

436 PM ChST Fri May 9 2025



.TONIGHT...East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East

5 ft at 8 seconds and east 3 ft at 5 seconds. 

.SATURDAY...East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East 5 

ft at 8 seconds and east 3 ft at 5 seconds. 

.SATURDAY NIGHT...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave 

Detail: East 5 ft at 8 seconds and east 3 ft at 4 seconds. 

.SUNDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail:

East 5 ft at 8 seconds and east 3 ft at 4 seconds. 

.SUNDAY NIGHT...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave

Detail: East 5 ft at 8 seconds and east 3 ft at 4 seconds. 

.MONDAY THROUGH TUESDAY...East wind 15 kt. Seas 5 to 7 ft. Wave

Detail: East 6 ft at 9 seconds and east 3 ft at 5 seconds. 

.WEDNESDAY...East wind 15 kt. Seas 4 to 6 ft. Wave Detail: East

5 ft at 9 seconds and east 3 ft at 5 seconds.  



$$