Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued October 28 at 5:19PM AST until October 28
Affecting Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N
In effect until: Oct 28, 2026, 10:45 PM
Atlantic Waters of Puerto Rico AND USVI from 10 NM to 19.5N
Likely impact; effects through 10:45 PM.
Stay indoors, monitor local alerts, and follow instructions from local officials.
Read the original bulletin (official text)
SMWSJU 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 645 PM AST. * At 519 PM AST, a severe thunderstorm capable of producing waterspouts was located over open waters of Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N zone, moving north at 10 knots. HAZARD...Waterspouts and wind gusts to 34 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Mainly open waters of Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™