018
FZMY50 PGUM 091701
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
301 AM ChST Fri Oct 10 2025

Marianas Waters out to 40 nautical miles

PMZ150-100700-
301 AM ChST Fri Oct 10 2025

.Synopsis for Marianas Waters...Gentle winds the next couple days
will become moderate Sunday. Combined seas of 3 to 5 feet today
will build to between 5 and 7 feet Saturday as a long-period
north swell arrives to the region.

$$

PMZ151>154-100700-
MARIANAS COASTAL WATERS-
301 AM ChST Fri Oct 10 2025

.TODAY...East wind 10 kt. Seas around 3 to 5 ft. Wave Detail:
Northeast 4 ft at 8 seconds and east 2 ft at 4 seconds. Scattered
showers with isolated thunderstorms.
.TONIGHT...East wind 5 kt. Seas 3 to 5 ft. Wave Detail:
Northeast 4 ft at 8 seconds. Isolated thunderstorms.
.SATURDAY...East wind 5 kt. Seas around 4 to 6 ft. Wave Detail:
Northeast 4 ft at 9 seconds and east 3 ft at 8 seconds. Isolated
thunderstorms.
.SATURDAY NIGHT...East wind 5 to 10 kt. Seas 4 to 6 ft. Wave
Detail: North 4 ft at 10 seconds, east 3 ft at 8 seconds and east
2 ft at 4 seconds.
.SUNDAY THROUGH MONDAY...East wind 10 to 15 kt. Seas 5 to 7 ft.
Wave Detail: Northeast 5 ft at 10 seconds, east 3 ft at 4 seconds
and east 3 ft at 8 seconds.
.TUESDAY...East wind 15 kt. Seas 4 to 6 ft. Wave Detail:
Northeast 5 ft at 8 seconds, east 2 ft at 8 seconds and east 3 ft
at 4 seconds. A chance of showers with a slight chance of
thunderstorms.

$$