WHGM70 PGUM 200650 MWWGUM URGENT - MARINE WEATHER MESSAGE National Weather Service Tiyan GU 450 PM ChST Fri Mar 20 2026 PMZ151>154-200800- /O.EXP.PGUM.SC.Y.0030.000000T0000Z-260320T0700Z/ Guam Coastal Waters-Rota Coastal Waters-Tinian Coastal Waters- Saipan Coastal Waters- 450 PM ChST Fri Mar 20 2026 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 5 PM CHST THIS AFTERNOON... Sea conditions have fallen below the 10 foot threshold for this advisory. Sea conditions are expected to remain between 7 to 9 feet for the next few days with periods of locally higher seas possible for northeastern Tinian and Saipan waters. Seas may become hazardous to small craft operations again as early as Saturday night. $$ Bowsher