Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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FZMY50 PGUM 270623
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
423 PM ChST Thu Jun 27 2024

Marianas Waters out to 40 nautical miles

PMZ150-272100-
423 PM ChST Thu Jun 27 2024

.Synopsis for Marianas Waters...Gentle to moderate trade winds will
continue through the beginning of next week. Combined seas of 4 to 6
feet will diminish to between 4 and 5 feet over the weekend. An
upper-level low to the north will provide a slight chance of
thunderstorms Saturday and Saturday night. Passing troughs will
produce scattered showers for Guam and Rota Saturday through Sunday
night and for Tinian and Saipan Saturday and Saturday night.

$$

PMZ151-152-272100-
Guam Coastal Waters-Rota Coastal Waters-
423 PM ChST Thu Jun 27 2024

.TONIGHT...Northeast wind 15 kt. Wind waves 3 ft. East swell 5 to
6 ft.
.FRIDAY AND FRIDAY NIGHT...East wind 10 to 15 kt. Wind waves 2 to 3
ft. East swell 4 to 5 ft.
.SATURDAY AND SATURDAY NIGHT...East wind 10 to 15 kt. Wind waves 2
to 3 ft. East swell 4 to 5 ft. Scattered showers and slight chance
of thunderstorms.
.SUNDAY...East wind 10 kt. Wind waves 2 ft or less. East swell 4 to
5 ft. Chance of showers.
.MONDAY AND TUESDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft.
East swell 3 to 4 ft. Slight chance of thunderstorms.

$$

PMZ153-154-272100-
Tinian Coastal Waters-Saipan Coastal Waters-
423 PM ChST Thu Jun 27 2024

.TONIGHT...East wind 15 kt. Wind waves 3 ft. East swell 4 to 5 ft.
.FRIDAY AND FRIDAY NIGHT...East wind 10 to 15 kt. Wind waves 2 to 3
ft. East swell 4 to 5 ft.
.SATURDAY AND SATURDAY NIGHT...East wind 10 to 15 kt. Wind waves 2
to 3 ft. East swell 4 to 5 ft. Scattered showers and slight chance
of thunderstorms.
.SUNDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 4
to 5 ft.
.MONDAY AND TUESDAY...East wind 10 to 15 kt. Wind waves 2 to 3 ft.
East swell 3 to 4 ft. Slight chance of thunderstorms.

$$