Coastal Waters Forecast
Issued by NWS Tiyan, Guam

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821
FZMY50 PGUM 191817
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
417 AM ChST Sat Jul 20 2024

Marianas Waters out to 40 nautical miles

PMZ150-200800-
417 AM ChST Sat Jul 20 2024

.Synopsis for Marianas Waters...A Tropical Depression is forming far
to the west of Guam, and the moist southeast flow over the Marianas
is weakening. Otherwise, the next threat for scattered showers and
isolated thundestorms is for Sunday when a trade-wind trough,
currently north of Chuuk, moves into the Marianas. Combined seas of
4 to 7 feet are expected in the coming days, along with a secondary
southwest swell.

$$

PMZ151>154-200800-
MARIANAS COASTAL WATERS-
417 AM ChST Sat Jul 20 2024

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

$$

Simpson