WHCA72 TJSJ 200803 MWWSJU URGENT - MARINE WEATHER MESSAGE National Weather Service San Juan PR 403 AM AST Wed May 20 2026 AMZ711-201615- /O.EXT.TJSJ.SC.Y.0018.000000T0000Z-260521T2200Z/ Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 403 AM AST Wed May 20 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM AST THURSDAY... * WHAT...East winds 15 to 20 kt with gusts up to 30 kt and seas 6 to 7 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N. * WHEN...Until 6 PM AST Thursday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$