627
FZMY50 PGUM 021901
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
501 AM ChST Wed Sep 3 2025

Marianas Waters out to 40 nautical miles

PMZ150-030830-
501 AM ChST Wed Sep 3 2025

.Synopsis for Marianas Waters...Light to moderate winds will
persist through Thursday night, then become light to gentle. Seas
of 3 to 5 feet could diminish slightly to between 3 and 4 feet on
Friday.

$$

PMZ151-152-030830-
Guam Coastal Waters-Rota Coastal Waters-
501 AM ChST Wed Sep 3 2025

.TODAY...East wind 5 to 15 kt. Seas 3 to 5 ft. Wave Detail: East
4 ft at 8 seconds and east 2 ft at 4 seconds. Scattered showers
with isolated thunderstorms.
.TONIGHT...East wind 5 to 15 kt. Seas around 4 ft. Wave Detail:
East 3 ft at 8 seconds and east 2 ft at 4 seconds. Scattered
showers with isolated thunderstorms.
.THURSDAY...East wind 5 to 10 kt. Seas around 4 ft. Wave Detail:
East 3 ft at 8 seconds and east 2 ft at 4 seconds. Scattered
showers with isolated thunderstorms.
.THURSDAY NIGHT...East wind 10 to 15 kt. Seas around 4 ft. Wave
Detail: East 3 ft at 8 seconds and east 2 ft at 4 seconds.
Isolated thunderstorms.
.FRIDAY THROUGH SUNDAY...East wind 5 to 10 kt. Seas 3 to 4 ft.
Wave Detail: Northeast 3 ft at 8 seconds and east 2 ft at 4
seconds. A slight chance of thunderstorms.

$$

PMZ153-154-030830-
Tinian Coastal Waters-Saipan Coastal Waters-
501 AM ChST Wed Sep 3 2025

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

$$