Marine Weather Message
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
140 WHCA72 TJSJ 181418 MWWSJU URGENT - MARINE WEATHER MESSAGE National Weather Service San Juan PR 1018 AM AST Mon Aug 18 2025 AMZ711-182230- /O.CON.TJSJ.SC.Y.0030.000000T0000Z-250819T0400Z/ Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N- 1018 AM AST Mon Aug 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AST TONIGHT... * WHAT...South winds 15 to 25 kt with gusts up to 35 kt and seas 7 to 9 ft. * WHERE...Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N and Coastal Waters of Northwestern Puerto Rico out 10 NM. * WHEN...Until midnight AST tonight. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ712-741-745-182200- /O.CON.TJSJ.SC.Y.0029.000000T0000Z-250818T2200Z/ Coastal Waters of Northern Puerto Rico out 10 NM- Mona Passage Southward to 17N- Coastal Waters of Southwestern Puerto Rico out 10 NM- 1018 AM AST Mon Aug 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM AST THIS EVENING... * WHAT...South winds 10 to 20 kt with gusts up to 30 kt and seas 5 to 7 ft. * WHERE...Coastal Waters of Southwestern and Northern Puerto Rico out 10 NM, and the Mona Passage Southward to 17N. * WHEN...Until 6 PM AST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ742-182200- /O.CON.TJSJ.SC.Y.0030.000000T0000Z-250818T2200Z/ Coastal Waters of Northwestern Puerto Rico out 10 NM- 1018 AM AST Mon Aug 18 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM AST THIS EVENING... * WHAT...South winds 15 to 25 kt with gusts up to 35 kt and seas 6 to 8 ft. * WHERE...Coastal Waters of Northwestern Puerto Rico out 10 NM. * WHEN...Until 6 PM AST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$