Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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148
FZMY50 PGUM 181735
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
335 AM ChST Sat Apr 19 2025

Marianas Waters out to 40 nautical miles

PMZ150-190915-
335 AM ChST Sat Apr 19 2025

.Synopsis for Marianas Waters...Combined seas of 5 to 7 feet
gradually diminish this weekend as trade winds and swell subside,
falling to between 3 and 5 feet next week. Gentle to moderate
trades will become mostly gentle early next week.

$$

PMZ151>154-190915-
MARIANAS COASTAL WATERS-
335 AM ChST Sat Apr 19 2025

.TODAY...East wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: East
6 ft at 8 seconds, east 3 ft at 5 seconds and northeast 2 ft at
10 seconds.
.TONIGHT...East wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail:
East 5 ft at 8 seconds, east 3 ft at 4 seconds and northeast 2 ft
at 10 seconds.
.SUNDAY...East wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail:
East 5 ft at 8 seconds, east 3 ft at 4 seconds and northeast 2 ft
at 9 seconds.
.SUNDAY NIGHT AND MONDAY...East wind 10 kt. Seas 3 to 5 ft. Wave
Detail: East 4 ft at 8 seconds, east 2 ft at 4 seconds and
northeast 2 ft at 10 seconds.
.TUESDAY AND WEDNESDAY...East wind 5 to 10 kt. Seas 3 to 5 ft.
Wave Detail: East 4 ft at 8 seconds, east 2 ft at 4 seconds and
north 2 ft at 8 seconds.

$$