FZMY50 PGUM 080633
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
433 PM ChST Wed Jul 8 2026

Marianas Waters out to 40 nautical miles

PMZ150-082130-
433 PM ChST Wed Jul 8 2026

.Synopsis for Marianas Waters...
Super Typhoon Bavi continues to move away from the Marianas to the
northwest, leaving behind combined seas of 8 to 10 ft. The Small 
Craft Advisory was extended to 4 PM ChST Thursday as seas will 
likely drop below hazardous levels later than previously 
anticipated.

$$

PMZ151>154-082130-
MARIANAS COASTAL WATERS-
433 PM ChST Wed Jul 8 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CHST 
THURSDAY...

.TONIGHT...South wind 5 to 15 kt. Seas 8 to 10 ft. Wave Detail:
West 9 ft at 11 seconds, southwest 5 ft at 9 seconds and south 3 
ft at 4 seconds. Scattered showers with isolated thunderstorms. 
.THURSDAY...Southeast wind 5 kt. Seas 8 to 10 ft. Wave Detail:
West 9 ft at 11 seconds and southwest 4 ft at 9 seconds. 
Scattered showers with isolated thunderstorms.
.THURSDAY NIGHT...Northeast wind 5 to 10 kt. Seas 7 to 9 ft. Wave
Detail: West 8 ft at 11 seconds, southwest 3 ft at 9 seconds, and
northeast 2 ft at 4 seconds. Isolated thunderstorms. 
.FRIDAY...Northeast wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail:
West 7 ft at 11 seconds, northeast 2 ft at 4 seconds and east 2 
ft at 9 seconds. 
.FRIDAY NIGHT...Northeast wind 10 kt. Seas 6 to 8 ft. Wave
Detail: West 7 ft at 11 seconds, northeast 2 ft at 4 seconds and
east 2 ft at 9 seconds.
.SATURDAY AND SUNDAY...South wind 10 kt. Seas 6 to 8 ft. Wave
Detail: West 6 ft at 10 seconds, east 4 ft at 10 seconds and 
northeast 2 ft at 4 seconds. A chance of showers with a slight 
chance of thunderstorms. 
.MONDAY...South wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail:
Northwest 5 ft at 9 seconds, east 4 ft at 9 seconds and south
2 ft at 4 seconds. A chance of showers with a slight chance of
thunderstorms.  

$$