Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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052
FZMY50 PGUM 170305 AAA
CWFGUM

Coastal Waters Forecast for the Mariana Islands...UPDATED
National Weather Service Tiyan GU
105 PM ChST Wed Jul 17 2024

Marianas Waters out to 40 nautical miles

PMZ150-170800-
105 PM ChST Wed Jul 17 2024

.Synopsis for Marianas Waters...Fresh winds and gusts of 25 to 30 kt
are expected as showers and isolated thunderstorms arrive from the
east. Combined sea of 5 to 8 feet will be choppy at times with an
arriving westerly swell. A trough approaching from the southeast will
cause showers and isolated thunderstorms tonight through Friday.

$$

PMZ151>154-170800-
MARIANAS COASTAL WATERS-
105 PM ChST Wed Jul 17 2024

...CHOPPY SEAS DEVELOPING AS WESTERLY SWELL GRADUALLY ARRIVES...

.THIS AFTERNOON...East wind 15 to 20 kt with gusts to 30 kt near
showers. Wind waves 3 to 5 ft. East swell 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.TONIGHT...East wind 10 to 20 kt with gusts to 30 kt near showers.
Wind waves 3 to 5 ft. East swell 4 to 6 ft. Numerous heavy showers
and isolated thunderstorms.
.THURSDAY THROUGH FRIDAY NIGHT...Southeast wind 10 to 20 kt with
gusts to 30 kt near showers. Wind waves 3 to 5 ft. Mixed swell east 4
to 5 ft and southwest 3 to 4 ft. Numerous showers and isolated
thunderstorms.
.SATURDAY AND SUNDAY...Southeast wind 10 to 15 kt. Wind waves 2 to 3
ft. Mixed swell east 3 to 5 ft and west 3 to 4 ft. Chance of showers
and slight chance of thunderstorms.

$$

Simpson