Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Tiyan GU
426 PM ChST Mon Aug 18 2025
PMZ151-152-182200-
/O.NEW.PGUM.SC.Y.0042.250818T1200Z-250819T0000Z/
Guam Coastal Waters-Rota Coastal Waters-
426 PM ChST Mon Aug 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM CHST TUESDAY...
* WHAT...Winds 15 to 25 kt. Occasional gusts to 35 kt near
heavier showers.
* WHERE...Guam and Rota Coastal Waters.
* WHEN...From 10 PM this evening to 10 AM ChST Tuesday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...A tropical disturbance is expected to move
south of Guam overnight, producing a period of locally heavy
showers and strong gusts across the region, especially for Guam
and Rota waters.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid boating in hazardous conditions.
&&
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IC