231
FZMY50 PGUM 310558
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
358 PM ChST Fri Jan 31 2025

Marianas Waters out to 40 nautical miles

PMZ150-312200-
358 PM ChST Fri Jan 31 2025

.Synopsis for Marianas Waters...Buoys and altimetry show combined
seas of 9 to 11 feet this afternoon. Sea conditions are expected
to remain hazardous through the weekend as a trade wind surge
shifts eastward across the region, following the area of high
pressure north of the region. Winds will start to decrease Sunday
but seas will be slower to diminish.

$$

PMZ151>154-312200-
MARIANAS COASTAL WATERS-
358 PM ChST Fri Jan 31 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TONIGHT...East wind 20 to 25 kt. Seas 9 to 11 ft. Wave Detail:
Northeast 8 ft at 9 seconds, east 6 ft at 7 seconds and northwest
5 ft at 9 seconds.
.SATURDAY...East wind 20 to 25 kt. Seas 8 to 10 ft. Wave Detail:
Northeast 8 ft at 9 seconds, east 6 ft at 6 seconds and northwest
3 ft at 9 seconds.
.SATURDAY NIGHT...East wind 20 to 25 kt. Seas 8 to 10 ft. Wave
Detail: Northeast 8 ft at 9 seconds, east 6 ft at 6 seconds and
northwest 3 ft at 9 seconds.
.SUNDAY...East wind 15 to 25 kt. Seas 8 to 10 ft. Wave Detail:
Northeast 8 ft at 9 seconds, east 5 ft at 6 seconds and northwest
3 ft at 9 seconds.
.SUNDAY NIGHT...East wind 15 to 20 kt. Seas 7 to 9 ft. Wave
Detail: Northeast 7 ft at 9 seconds, east 4 ft at 5 seconds and
north 3 ft at 13 seconds.
.MONDAY...East wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail:
Northeast 6 ft at 9 seconds, east 3 ft at 5 seconds and north 3
ft at 12 seconds.
.TUESDAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail:
East 5 ft at 9 seconds, east 3 ft at 5 seconds and north 3 ft at
12 seconds.
.WEDNESDAY...East wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail:
East 5 ft at 9 seconds, east 4 ft at 6 seconds and north 3 ft at
13 seconds.

$$