WHGM70 PGUM 230651 MWWGUM URGENT - MARINE WEATHER MESSAGE National Weather Service Tiyan GU 451 PM ChST Sun Aug 23 2026 PMZ151>154-232100- /O.EXT.PGUM.SC.Y.0062.000000T0000Z-260824T0700Z/ Guam Coastal Waters-Rota Coastal Waters-Tinian Coastal Waters- Saipan Coastal Waters- 451 PM ChST Sun Aug 23 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM CHST MONDAY... * WHAT...Seas 8 to 10 feet expected. * WHERE...Marianas Coastal Waters. * WHEN...Until 5 PM ChST Monday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...Combined seas of 7 to 9 ft tonight will increase to 8 to 10 ft by Monday morning due to an elevated southwest swell from the remnant monsoon surge and Tropical Depression 19W, currently well northwest of Yap Island. In addition, convective gusts associated with heavy showers will give way to choppy seas. Conditions may begin to subside Monday night, so the advisory will be reassessed by then. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid boating in hazardous conditions. && $$ Mesa