


Marine Weather Message
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
Versions:
1
2
708 WHGM70 PGUM 141841 MWWGUM URGENT - MARINE WEATHER MESSAGE National Weather Service Tiyan GU 441 AM ChST Wed Oct 15 2025 PMZ151-152-150900- /O.CON.PGUM.SC.Y.0045.000000T0000Z-251015T2000Z/ Guam Coastal Waters-Rota Coastal Waters- 441 AM ChST Wed Oct 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CHST THURSDAY... * WHAT...Southeast winds 15 to 25 kt and seas 6 to 8 feet expected. * WHERE...Guam and Rota Coastal Waters. * WHEN...Until 6 AM ChST Thursday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...A tropical disturbance, Invest 96W, is expected to bring fresh to strong southeast winds which will be hazardous to small craft through at least late tonight. Conditions are expected to steadily improve once Invest 96W moves away from the region Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A small craft advisory means that wind speeds of 21 to 33 knots are expected to produce wave conditions hazardous to small craft. Inexperienced mariners...especially those operating smaller vessels...should avoid sailing in these conditions. && $$ Aydlett