NWS San Juan PRMA.W 0024September 15, 2026
Special Marine Warning: Mona Passage Southward to 17N, Coastal Waters OF Northwestern Puerto Rico out 10 NM and Coastal Waters OF Southwestern Puerto Rico out 10 NM
The National Weather Service office in San Juan issued a special marine warning for Mona Passage Southward to 17N, Coastal Waters OF Northwestern Puerto Rico out 10 NM and Coastal Waters OF Southwestern Puerto Rico out 10 NM, which was in force until 3:30 p.m. local time on September 15. It was the 24th special marine warning the NWS office in San Juan issued in 2026.
ExpiredWarning
In force for 56 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, San Juan PR
- Area
- Mona Passage Southward to 17N, Coastal Waters OF Northwestern Puerto Rico out 10 NM and Coastal Waters OF Southwestern Puerto Rico out 10 NM
- Level
- Warning
- Issued
- 2:34 p.m. EDT, September 15, 2026
- Expires
- 3:30 p.m. EDT, September 15, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- TJSJ MA.W 0024
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SMWSJU The National Weather Service in San Juan has issued a * Special Marine Warning for... Mona Passage Southward to 17N... Coastal Waters of Northwestern Puerto Rico out 10 NM... Coastal Waters of Southwestern Puerto Rico out 10 NM... * Until 330 PM AST. * At 234 PM AST, A strong thunderstorm was located over open waters of Mona Passage Southward to 17N, Coastal Waters of Northwestern Puerto Rico out 10 NM and Coastal Waters of Southwestern Puerto Rico out 10 NM zones, moving west at 10 knots. HAZARD...Wind gusts to 34 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Mainly open waters of Mona Passage Southward to 17N, Coastal Waters of Northwestern Puerto Rico out 10 NM and Coastal Waters of Southwestern Puerto Rico out 10 NM.
What the agency told people to do
Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.