


Special Marine Warning
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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461 WHCA52 TJSJ 232348 SMWSJU AMZ711-240045- /O.NEW.TJSJ.MA.W.0016.250623T2348Z-250624T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service San Juan PR 748 PM AST Mon Jun 23 2025 The National Weather Service in San Juan has issued a * Special Marine Warning for... Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N... * Until 845 PM AST. * At 747 PM AST, a severe thunderstorm capable of producing waterspouts was located over offshore Atlantic waters, moving west at 25 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... Move to safe harbor immediately as gusty winds and high waves are expected. 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. && LAT...LON 1937 6580 1900 6596 1906 6705 1951 6703 1951 6661 TIME...MOT...LOC 2347Z 108DEG 24KT 1929 6632 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ CVB