129
FZMY50 PGUM 251745
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
345 AM ChST Wed Nov 26 2025

Marianas Waters out to 40 nautical miles

PMZ150-260800-
345 AM ChST Wed Nov 26 2025

.Synopsis for Marianas Waters...
Moderate to fresh trade winds will prevail across the region today,
becoming gentle to moderate thereafter. Combined seas of 6 to 8 feet
will gradually decrease by 1 to 2 feet toward the end of the week,
as the elevated trade swell and winds continue to weaken. Although
sea conditions remain below levels hazardous to small craft, seas
will remain choppy for the next few days due to the elevated
trade swell and lingering northerly swell.

$$

PMZ151>154-260800-
MARIANAS COASTAL WATERS-
345 AM ChST Wed Nov 26 2025

.TODAY...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: East
7 ft at 9 seconds and east 4 ft at 6 seconds. Scattered showers
and isolated thunderstorms.
.TONIGHT...East wind 15 kt. Seas 6 to 8 ft. Wave Detail: East 7 ft
at 9 seconds and east 3 ft at 5 seconds. Scattered showers.
.THURSDAY...East wind 15 kt. Seas 6 to 7 ft. Wave Detail: East 6 ft
at 9 seconds and east 3 ft at 5 seconds. Scattered showers.
.THURSDAY NIGHT...East wind 15 kt. Seas 5 to 7 ft. Wave Detail:
East 6 ft at 8 seconds and east 3 ft at 5 seconds.
.FRIDAY...East wind 15 kt. Seas 5 to 7 ft. Wave Detail: East 6 ft at
8 seconds and east 3 ft at 5 seconds.
.SATURDAY AND SUNDAY...East wind 10 to 15 kt. Seas 5 to 7 ft.
Wave Detail: Northeast 6 ft at 9 seconds and east 3 ft at 4 seconds.
A chance of showers with a slight chance of thunderstorms.

$$