816
FZMY50 PGUM 091836
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
436 AM ChST Wed Sep 10 2025

Marianas Waters out to 40 nautical miles

PMZ150-100845-
436 AM ChST Wed Sep 10 2025

.Synopsis for Marianas Waters...Gentle to moderate trade winds
will diminish and become light to gentle tonight as a surface
trough recedes to the west. Combined seas of 3 to 5 feet will
persist through the weekend with the slightest decrease to 3 to 4
feet.

$$

PMZ151>154-100845-
MARIANAS COASTAL WATERS-
436 AM ChST Wed Sep 10 2025

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

$$