700
FZMY50 PGUM 120607
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
407 PM ChST Thu Jun 12 2025

Marianas Waters out to 40 nautical miles

PMZ150-122145-
407 PM ChST Thu Jun 12 2025

.Synopsis for Marianas Waters...Gentle to moderate winds will
become light to gentle this weekend. Combined seas are expected
to remain between 3 and 5 feet. The small southwest to west
monsoon swell will continue through Friday night.

$$

PMZ151-152-122145-
Guam Coastal Waters-Rota Coastal Waters-
407 PM ChST Thu Jun 12 2025

.TONIGHT...East wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail:
Northeast 3 ft at 8 seconds, east 3 ft at 4 seconds and west 2 ft
at 9 seconds. Scattered showers with isolated thunderstorms.
.FRIDAY...East wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail:
East 3 ft at 8 seconds, east 3 ft at 4 seconds and west 2 ft at 9
seconds. Scattered showers with isolated thunderstorms.
.FRIDAY NIGHT...East wind 10 to 15 kt. Seas 3 to 5 ft. Wave
Detail: East 4 ft at 8 seconds, east 3 ft at 4 seconds and west 2
ft at 9 seconds.
.SATURDAY...East wind 10 kt. Seas 3 to 5 ft. Wave Detail: East
4 ft at 8 seconds and east 2 ft at 4 seconds.
.SATURDAY NIGHT...East wind 10 kt. Seas around 4 ft. Wave Detail:
East 4 ft at 8 seconds and east 2 ft at 4 seconds.
.SUNDAY THROUGH TUESDAY...East wind 5 to 10 kt. Seas 3 to 4 ft.
Wave Detail: East 3 ft at 8 seconds and east 2 ft at 4 seconds.

$$

PMZ153-154-122145-
Tinian Coastal Waters-Saipan Coastal Waters-
407 PM ChST Thu Jun 12 2025

.TONIGHT...East wind 10 kt. Seas around 4 ft. Wave Detail:
Northeast 3 ft at 8 seconds, east 2 ft at 4 seconds and west 2 ft
at 9 seconds. Scattered showers after midnight.
.FRIDAY...East wind 10 kt. Seas around 4 ft. Wave Detail:
Northeast 3 ft at 8 seconds, east 2 ft at 4 seconds and west 2 ft
at 9 seconds. Scattered showers.
.FRIDAY NIGHT...East wind 10 kt. Seas 3 to 5 ft. Wave Detail:
East 3 ft at 8 seconds, east 2 ft at 4 seconds and west 2 ft at
9 seconds.
.SATURDAY...East wind 10 kt. Seas around 4 ft. Wave Detail: East
4 ft at 8 seconds and east 2 ft at 4 seconds.
.SATURDAY NIGHT...East wind 10 kt. Seas 3 to 4 ft. Wave Detail:
East 3 ft at 8 seconds and east 2 ft at 4 seconds.
.SUNDAY THROUGH TUESDAY...East wind 5 to 10 kt. Seas 3 to 4 ft.
Wave Detail: East 3 ft at 8 seconds and east 2 ft at 4 seconds.

$$