037
FZMY50 PGUM 071846
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
446 AM ChST Wed Oct 8 2025

Marianas Waters out to 40 nautical miles

PMZ150-080830-
446 AM ChST Wed Oct 8 2025

.Synopsis for Marianas Waters...Winds will be mainly light to
gentle this week, with a few moderate values today and Sunday.
Combined seas of 3 to 5 feet will continue through Friday, then
build to between 5 and 8 feet for the weekend as a north swell
moves in.

$$

PMZ151>154-080830-
MARIANAS COASTAL WATERS-
446 AM ChST Wed Oct 8 2025

.TODAY...South wind 5 to 15 kt. Seas around 4 ft. Wave Detail:
Southeast 4 ft at 8 seconds and south 2 ft at 4 seconds. Isolated
thunderstorms.
.TONIGHT...Northeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: Southeast 3 ft at 8 seconds.
.THURSDAY...Northeast wind 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: East 3 ft at 8 seconds and northeast 2 ft at 4 seconds.
Isolated thunderstorms.
.THURSDAY NIGHT...Northeast wind 10 kt. Seas around 4 ft. Wave
Detail: East 3 ft at 8 seconds and northeast 2 ft at 4 seconds.
.FRIDAY...East wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail:
Northeast 4 ft at 8 seconds and east 2 ft at 4 seconds. A slight
chance of thunderstorms.
.SATURDAY...East wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail:
North 5 ft at 12 seconds and east 2 ft at 4 seconds. A slight
chance of thunderstorms.
.SUNDAY...East wind 5 to 15 kt. Seas 5 to 7 ft. Wave Detail:
North 5 ft at 11 seconds and east 2 ft at 4 seconds.

$$