Special Marine Warning Issued for Puerto Rico and USVI Waters
This alert is no longer in effect.
NOAA issued it on April 13, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Special Marine Warning is in effect for various waters around Puerto Rico and the US Virgin Islands until 1:15 PM AST, due to strong thunderstorms capable of producing waterspouts and wind gusts up to 34 knots.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Puerto Rico and US Virgin Islands coastal waters
- Issued
- April 13, 2026
- Issuing authority
- NWS San Juan PR
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Puerto Rico and US Virgin Islands coastal waters.
Special Marine Warning for Puerto Rico and USVI Waters
Alert Details
The National Weather Service in San Juan PR has issued a Special Marine Warning. This alert is effective from 11:12 AM AST on April 13, 2026, until 1:15 PM AST on the same day.
Affected Areas
The warning covers the following regions: Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N; Coastal Waters from Cabo San Juan to the waters between Anegada Island and Virgin Gorda and North 10 NM; Anegada Passage east of Virgin Gorda and Saint Croix south to 17N; Coastal Waters east of Puerto Rico, around Vieques, and around and just north of Culebra and Saint John; Caribbean Waters of Puerto Rico from 10 NM to 17N, including the Coastal Waters of Saint Croix.
What You Should Do
Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. Frequent lightning is occurring with these storms. If caught on the open water, stay below deck if possible and keep away from ungrounded metal objects.
Expected Conditions
Strong thunderstorms capable of producing waterspouts and wind gusts of 34 knots or greater are occurring. These hazards are based on radar detection.
Timeline
The alert is effective from 11:12 AM AST on April 13, 2026, and will expire at 1:15 PM AST on April 13, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,369 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 13, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.