933
FZMY50 PGUM 190601
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
401 PM ChST Thu Jun 19 2025

Marianas Waters out to 40 nautical miles

PMZ150-192230-
401 PM ChST Thu Jun 19 2025

.Synopsis for Marianas Waters...Light to gentle east to southeast
trades will prevail through the forecast period. Combined seas of
3 to 4 feet are expected through much of the period. An increase
in trade swell will coincide with a decrease in winds to light
this weekend, keeping combined seas in the 3 to 4 foot range.

$$

PMZ151>154-192230-
MARIANAS COASTAL WATERS-
401 PM ChST Thu Jun 19 2025

.TONIGHT...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.
.FRIDAY...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail:
East 3 ft at 8 seconds and southeast 2 ft at 4 seconds. Isolated
thunderstorms.
.FRIDAY NIGHT...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 3 ft at 8 seconds and southeast 2 ft at 4 seconds.
.SATURDAY...Southeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 3 ft at 8 seconds and southeast 2 ft at 4 seconds.
.SATURDAY NIGHT...Southeast wind 5 kt. Seas around 3 to 4 ft.
Wave Detail: East 3 to 4 ft at 8 seconds.
.SUNDAY THROUGH TUESDAY...East wind 5 to 10 kt. Seas around 3 ft.
Wave Detail: East 3 ft at 8 seconds and east 2 ft at 4 seconds.

$$