Special Marine Warning for Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix; Coastal Waters of Southern Puerto Rico out 10 NM
Official alert fields
What you need to know
- Applies to
- Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix, Coastal Waters of Southern Puerto Rico out 10 NM
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
SMWSJU 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... Coastal Waters of Southern Puerto Rico out 10 NM... * Until 130 PM AST. * At 1240 PM AST, a severe thunderstorm capable of...
What the bulletin says to do
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. Report severe weather to the Coast Guard or the National Weather Service.
Full official description
Bulletin details
SMWSJU 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... Coastal Waters of Southern Puerto Rico out 10 NM... * Until 130 PM AST. * At 1240 PM AST, a severe thunderstorm capable of producing waterspouts was located over over the waters south of southeastern Puerto Rico, moving west at 15 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. 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 Caribbean waters of Puerto Rico from 10 NM to 17N, including the coastal waters of Saint Croix and Coastal Waters of Southern Puerto Rico out 10 NM.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 30 at 12:40PM AST until August 30 at 1:30PM AST by NWS San Juan PR
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS San Juan PR. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected