733
FZMY50 PGUM 100854 AAA
CWFGUM

Coastal Waters Forecast for the Mariana Islands...UPDATED
National Weather Service Tiyan GU
654 PM ChST Sun Aug 10 2025

Marianas Waters out to 40 nautical miles

PMZ150-110000-
654 PM ChST Sun Aug 10 2025

.Synopsis for Marianas Waters...Light to gentle winds are expected
through next week. Combined seas of 3 to 5 feet will slowly
subside, dropping to between 2 and 3 feet by Thursday. An upper-
level low will produce isolated thunderstorms through Tuesday.

$$

PMZ151-110000-
Guam Coastal Waters-
654 PM ChST Sun Aug 10 2025

Updated to add scattered showers to Guam coastal waters.

.REST OF TONIGHT...Southeast wind 5 to 10 kt. Seas 3 to 4 ft.
Wave Detail: East 4 ft at 8 seconds and east 2 ft at 4 seconds.
Scattered sgiwers with isolated thunderstorms.
.MONDAY...East wind 5 kt. Seas 3 to 4 ft. Wave Detail: East 4 ft
at 8 seconds. Scattered showers with isolated thunderstorms.
.MONDAY NIGHT...East wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 4 ft at 8 seconds and east 2 ft at 4 seconds.
Isolated thunderstorms.
.TUESDAY...Southeast wind 5 kt. Seas around 3 ft. Wave Detail:
East 3 ft at 8 seconds. Isolated thunderstorms.
.TUESDAY NIGHT...East wind 5 kt. Seas around 3 ft. Wave Detail:
East 3 ft at 9 seconds. Isolated thunderstorms.
.WEDNESDAY THROUGH FRIDAY...East wind 5 to 10 kt. Seas around 3
ft. Wave Detail: East 3 ft at 9 seconds and east 2 ft at 4 seconds.

$$

PMZ152>154-110000-
Rota Coastal Waters-Tinian Coastal Waters-Saipan Coastal Waters-
654 PM ChST Sun Aug 10 2025

.REST OF TONIGHT...East wind 5 to 10 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.
.MONDAY...East wind 5 to 10 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.
.MONDAY NIGHT...East wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail:
East 4 ft at 8 seconds and east 2 ft at 4 seconds. Isolated
thunderstorms.
.TUESDAY AND TUESDAY NIGHT...Southeast wind 5 kt. Seas 3 to 4 ft.
Wave Detail: East 4 ft at 8 seconds. Isolated thunderstorms.
.WEDNESDAY THROUGH FRIDAY...East wind 5 to 10 kt. Seas around 3 ft.
Wave Detail: East 3 ft at 9 seconds and east 2 ft at 4 seconds.

$$