Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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657
FZMY50 PGUM 091758
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
358 AM ChST Mon Nov 10 2025

Marianas Waters out to 40 nautical miles

PMZ150-100815-
358 AM ChST Mon Nov 10 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
easterly swell, northerly swell, and westerly swell from distant
Typhoon Fung-wong (32W), are expected to persist for several
days while varying in strength throughout the week.

$$

PMZ151>154-100815-
MARIANAS COASTAL WATERS-
358 AM ChST Mon Nov 10 2025

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

$$