466
FZMY50 PGUM 180638
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
438 PM ChST Thu Jul 18 2024

Marianas Waters out to 40 nautical miles

PMZ150-182145-
438 PM ChST Thu Jul 18 2024

.Synopsis for Marianas Waters...The surface trough expected for the
Marianas has passed to the west after bringing showers this morning.
However, the monsoon trough to our south is expected to lift north,
bringing additional rounds of showers through at least Friday night.
Winds will be gentle to moderate tonight, increasing to moderate to
fresh on Friday with gusts to around 25 kt near showers. Combined
sea of 4 to 6 feet will be choppy at times with a weak secondary
swell arriving from southwest.

$$

PMZ151>154-182145-
MARIANAS COASTAL WATERS-
438 PM ChST Thu Jul 18 2024

.TONIGHT...East wind 10 to 15 kt with gusts to 25 kt. Wind waves
2 to 4 ft. Mixed swell east 3 to 4 ft and southwest 2 ft. Scattered
showers and isolated thunderstorms.
.FRIDAY...East wind 15 to 20 kt. Wind waves 3 to 4 ft. Mixed swell
east 3 to 4 ft and southwest 2 ft. Scattered showers and isolated
thunderstorms.
.FRIDAY NIGHT...Southeast wind 15 to 20 kt. Wind waves 3 to 4 ft.
East swell 3 to 5 ft. Scattered showers and isolated thunderstorms.
.SATURDAY AND SATURDAY NIGHT...East wind 10 to 15 kt. Wind waves 2
to 3 ft. East swell 4 ft.
.SUNDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3
to 4 ft. Chance of showers and slight chance of thunderstorms.
.MONDAY AND TUESDAY...East wind 5 to 10 kt. Wind waves 2 ft or less.
East swell 3 to 4 ft. Chance of showers and slight chance of
thunderstorms.

$$