548
FZMY50 PGUM 150521
CWFGUM

Coastal Waters Forecast for the Mariana Islands
National Weather Service Tiyan GU
321 PM ChST Wed May 15 2024

Marianas Waters out to 40 nautical miles

PMZ150-152230-
321 PM ChST Wed May 15 2024

.Synopsis for Marianas Waters...Trade winds will be to fresh through
Friday night, then increase slightly over the weekend as the
gradient tightens in between high pressure passing to the north and
a tropical disturbance to the south. Combined seas of 5 to 7 feet
through Saturday. Seas look to increase by later Sunday into early
next week as an elevated swell emanating from a storm system
northwest of Hawaii arrives and wind waves increase. Depending on the
location and strength of a potential tropical cyclone early to mid
next week, winds and sea conditions could be higher and may become
hazardous to small craft.

$$

PMZ151-152-152230-
Guam Coastal Waters-Rota Coastal Waters-
321 PM ChST Wed May 15 2024

.TONIGHT...East wind 15 to 20 kt. Wind waves 3 to 4 ft. East swell 5
to 6 ft.
.THURSDAY THROUGH FRIDAY NIGHT...East wind 15 to 20 kt. Wind waves 3
to 4 ft. East swell 5 to 6 ft.
.SATURDAY AND SUNDAY...East wind 15 to 20 kt with gusts to 25 kt.
Wind waves 3 to 5 ft. East swell 5 to 6 ft.
.MONDAY...East wind 20 kt with gusts to 30 kt. Wind waves 4 to 6 ft.
East swell 6 to 7 ft. Chance of showers and slight chance of
thunderstorms.

$$

PMZ153-154-152230-
Tinian Coastal Waters-Saipan Coastal Waters-
321 PM ChST Wed May 15 2024

.TONIGHT...East wind 15 to 20 kt. Wind waves 3 to 4 ft. East swell 5
to 6 ft.
.THURSDAY THROUGH FRIDAY NIGHT...East wind 15 to 20 kt. Wind waves 3
to 4 ft. East swell 5 to 6 ft.
.SATURDAY AND SUNDAY...East wind 15 to 20 kt with gusts to 25 kt.
Wind waves 3 to 5 ft. East swell 5 to 6 ft.
.MONDAY...East wind 20 kt with gusts to 30 kt. Wind waves 4 to 6 ft.
East swell 6 to 7 ft. Slight chance of thunderstorms.

$$