630
FZMY50 PGUM 131800
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
400 AM ChST Thu Aug 14 2025

Marianas Waters out to 40 nautical miles

PMZ150-140900-
400 AM ChST Thu Aug 14 2025

.Synopsis for Marianas Waters...Light to gentle winds are expected
to become gentle to moderate this weekend. Combined seas of 2 to
3 feet are expected through the workweek and then become 3 to 4
feet this weekend. The potential for isolated thunderstorms is
expected to continue through today for the Marianas, with a slight
chance of thunderstorms Friday night and into the weekend.

$$

PMZ151>154-140900-
MARIANAS COASTAL WATERS-
400 AM ChST Thu Aug 14 2025

.TODAY...East wind 5 kt. Seas around 3 ft. Wave Detail: East 3 ft
at 9 seconds. Isolated thunderstorms.
.TONIGHT...East wind 5 kt. Seas around 3 ft. Wave Detail: East
3 ft at 9 seconds.
.FRIDAY...East wind 5 kt. Seas around 3 ft. Wave Detail: East
3 ft at 9 seconds.
.FRIDAY NIGHT...East wind 5 to 10 kt. Seas around 3 ft. Wave
Detail: East 2 ft at 4 seconds and east 2 ft at 9 seconds.
Isolated thunderstorms.
.SATURDAY THROUGH MONDAY...East wind 10 to 15 kt. Seas 3 to 4 ft.
Wave Detail: Northeast 4 ft at 8 seconds and east 3 ft at
4 seconds. A slight chance of thunderstorms.

$$