513
FZMY50 PGUM 221843
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
443 AM ChST Thu Jul 23 2026

Marianas Waters out to 40 nautical miles

PMZ150-230900-
443 AM ChST Thu Jul 23 2026

.Synopsis for Marianas Waters...
Light and variable winds will continue for the next few days
before becoming light to gentle easterlies over the weekend.
Combined seas will be 3 to 4 ft at least through midweek. There is
a combination of swells out of the southwest, east, and
southeast. Scattered showers and isolated thunderstorms are a
possibility for the next two afternoon periods.

$$

PMZ151>154-230900-
MARIANAS COASTAL WATERS-
443 AM ChST Thu Jul 23 2026

.TODAY...Variable wind 5 kt. Seas around 4 ft. Wave Detail:
Southwest 3 ft at 8 seconds, east 2 ft at 9 seconds and southeast
2 ft at 10 seconds.
.TONIGHT THROUGH FRIDAY NIGHT...Variable wind 5 kt. Seas around 4
ft. Wave Detail: Southwest 3 ft at 8 seconds, northeast 2 ft at 9
seconds and southeast 2 ft at 10 seconds.
.SATURDAY THROUGH MONDAY...East wind 10 kt. Seas 3 to 4 ft. Wave
Detail: Southwest 3 ft at 8 seconds, east 2 ft at 4 seconds and
northeast 2 ft at 9 seconds.

$$