204
FZMY50 PGUM 100541
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
341 PM ChST Thu Jul 10 2025

Marianas Waters out to 40 nautical miles

PMZ150-102015-
341 PM ChST Thu Jul 10 2025

.Synopsis for Marianas Waters...Nearby monsoon and trade wind
patterns will maintain light to gentle southeasterlies and
periods of scattered showers and isolated thunderstorms through
early next week. Combined seas of around 3 feet build to 3 to 5
feet by the weekend due to a slight increase in trade swell and
the arrival of southwest swell.

$$

PMZ151-152-102015-
Guam Coastal Waters-Rota Coastal Waters-
341 PM ChST Thu Jul 10 2025

.TONIGHT...Southeast wind 5 to 10 kt. Seas around 3 ft.
.FRIDAY...Southeast wind 5 to 10 kt. Seas 3 to 4 ft.
.FRIDAY NIGHT...Southeast wind 5 to 10 kt. Seas 3 to 4 ft.
Scattered showers with isolated thunderstorms.
.SATURDAY...Southeast wind 10 kt. Seas 3 to 5 ft. Scattered
showers with isolated thunderstorms.
.SATURDAY NIGHT...Southeast wind 5 to 10 kt. Seas 3 to 5 ft.
Scattered showers with isolated thunderstorms.
.SUNDAY THROUGH TUESDAY...Southeast wind 5 to 10 kt. Seas 3 to
5 ft. A chance of showers with a slight chance of thunderstorms.

$$

PMZ153-154-102015-
Tinian Coastal Waters-Saipan Coastal Waters-
341 PM ChST Thu Jul 10 2025

.TONIGHT...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Isolated
thunderstorms.
.FRIDAY...Southeast wind 5 to 10 kt. Seas around 4 ft. Isolated
thunderstorms.
.FRIDAY NIGHT...Southeast wind 5 to 10 kt. Seas 3 to 5 ft.
Scattered showers with isolated thunderstorms.
.SATURDAY...Southeast wind 10 kt. Seas 4 to 5 ft. Scattered
showers with isolated thunderstorms.
.SATURDAY NIGHT...Southeast wind 10 kt. Seas 4 to 5 ft. Scattered
showers with isolated thunderstorms.
.SUNDAY THROUGH TUESDAY...Southeast wind 5 to 15 kt. Seas 4 to
5 ft. A chance of showers with a slight chance of thunderstorms.

$$