


Special Marine Warning
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
623 WHCA52 TJSJ 230556 SMWSJU AMZ733-230700- /O.NEW.TJSJ.MA.W.0035.250823T0556Z-250823T0700Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service San Juan PR 156 AM AST Sat Aug 23 2025 The National Weather Service in San Juan has issued a * Special Marine Warning for... Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix... * Until 300 AM AST. * At 155 AM AST, a severe thunderstorm capable of producing waterspouts was located over the offshore Caribbean Waters, about 30 miles southwest of Saint Crox, moving northwest at 15 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until this storm passes. Wind gusts 34 knots or greater, high waves, dangerous lightning, and heavy rain are possible with this storm. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Report severe weather to the Coast Guard or the National Weather Service. && LAT...LON 1768 6507 1730 6525 1747 6587 1792 6564 TIME...MOT...LOC 0555Z 117DEG 22KT 1759 6539 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ ICP