612
FZMY50 PGUM 060540
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
340 PM ChST Sun Jul 6 2025

Marianas Waters out to 40 nautical miles

PMZ150-062200-
340 PM ChST Sun Jul 6 2025

.Synopsis for Marianas Waters...Light and variable winds this
evening will become light to gentle from the southwest after
midnight. Winds will slowly pick up early next week as the high
pressure ridge shifts east and the southerly flow increases, with
winds becoming gentle to moderate on Tuesday, then decreasing
slightly beginning Wednesday. Combined seas of around 3 feet are
expected for most of the week, possibly increasing late week or
the weekend as a west-northwest swell emanating from a distant
tropical disturbance to our northwest arrives.

$$

PMZ151>154-062200-
MARIANAS COASTAL WATERS-
340 PM ChST Sun Jul 6 2025

.TONIGHT...Variable wind around 5 kt becoming southwest 5 to 10
kt after midnight. Seas around 3 ft. Wave Detail: East 3 ft at 9
seconds and 2 ft at 4 seconds. Scattered showers with isolated
thunderstorms.
.MONDAY...Southwest wind 5 to 10 kt. Seas around 3 ft. Wave
Detail: East 3 ft at 8 seconds and 2 ft at 4 seconds. Scattered
showers with isolated thunderstorms.
.MONDAY NIGHT...Southwest to south wind 5 to 10 kt. Seas around 3
ft. Wave Detail: East 3 ft at 8 seconds and 2 ft at 4 seconds.
Scattered showers with isolated thunderstorms.
.TUESDAY...South wind 5 to 15 kt. Seas around 3 ft. Wave Detail:
South 3 ft at 5 seconds and east 2 ft at 8 seconds. Scattered
showers with isolated thunderstorms.
.TUESDAY NIGHT...South wind 10 to 15 kt. Seas around 3 ft. Wave
Detail: South 3 ft at 5 seconds and east 2 ft at 8 seconds.
Scattered showers with isolated thunderstorms.
.WEDNESDAY THROUGH FRIDAY...Southeast wind 5 to 10 kt. Seas
around 3 ft. Wave Detail: East 3 ft at 8 seconds and southeast 2
ft at 4 seconds. Scattered showers with a slight chance of
thunderstorms.

$$