Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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217
FZMY50 PGUM 030539
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
339 PM ChST Thu Jul 3 2025

Marianas Waters out to 40 nautical miles

PMZ150-032000-
339 PM ChST Thu Jul 3 2025

.Synopsis for Marianas Waters...Gentle southeasterlies will
prevail across the region the next few days. Combined seas of 3 to
4 feet are expected through much of the weekend, before picking up
another foot early next week.

$$

PMZ151>154-032000-
MARIANAS COASTAL WATERS-
339 PM ChST Thu Jul 3 2025

.TONIGHT...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 3 ft at 9 seconds and southeast 2 ft at 4 seconds.
.FRIDAY...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail:
East 3 ft at 9 seconds and southeast 2 ft at 4 seconds.
.FRIDAY NIGHT...Southeast wind 5 kt. Seas around 3 ft. Wave Detail:
East 3 ft at 9 seconds. Scattered showers.
.SATURDAY...South wind 5 kt. Seas around 3 ft. Wave Detail: East
3 ft at 9 seconds. Scattered showers with isolated thunderstorms.
.SATURDAY NIGHT...South wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 3 ft at 9 seconds and south 2 ft at 3 seconds.
Scattered showers with isolated thunderstorms.
.SUNDAY THROUGH TUESDAY...South wind 5 to 15 kt. Seas 3 to 5 ft.
Wave Detail: East 3 ft at 9 seconds and south 3 ft at 4 seconds. A
chance of showers with a slight chance of thunderstorms.

$$