541
FZMY50 PGUM 101835
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
435 AM ChST Tue Nov 11 2025

Marianas Waters out to 40 nautical miles

PMZ150-110900-
435 AM ChST Tue Nov 11 2025

.Synopsis for Marianas Waters...
Gentle to moderate trades will prevail across the Marianas for
much of this week. Combined seas of 5 to 7 feet, comprised of a
weakening easterly swell, strengthening northerly swell, and
persistent westerly swell, are expected to persist for a couple more
days while varying in strength throughout the week. While seas are
expected to remain below small craft advisory levels, seas will
continue to be choppy as these swells continue to mix.

$$

PMZ151>154-110900-
MARIANAS COASTAL WATERS-
435 AM ChST Tue Nov 11 2025

Updated to correct expiration time

.TODAY...East wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: North 4
ft at 10 seconds, west 4 ft at 11 seconds, east 3 ft at 11 seconds
and east 3 ft at 4 seconds.
.TONIGHT...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail:
North 5 ft at 10 seconds, east 3 ft at 11 seconds, east 3 ft at 4
seconds and west 2 ft at 11 seconds.
.WEDNESDAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail:
East 5 ft at 9 seconds, north 3 ft at 12 seconds and east 3 ft at
4 seconds.
.WEDNESDAY NIGHT...East wind 10 to 15 kt. Seas 5 to 6 ft. Wave
Detail: East 4 ft at 9 seconds, east 3 ft at 4 seconds and north 3
ft at 12 seconds.
.THURSDAY AND FRIDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave
Detail: East 4 ft at 8 seconds, east 3 ft at 4 seconds and north 2 ft
at 11 seconds.
.SATURDAY...East wind 15 kt. Seas 5 to 6 ft. Wave Detail:
Northeast 5 ft at 10 seconds and east 3 ft at 4 seconds.

$$