First published Oct 27, 2026, 4:11:15 AM UTC · Last updated Oct 27, 2026, 4:11:15 AM UTC

Thunderstorms and lightning

Special Marine Warning issued October 26 at 11:25PM AST until October 27 at 12:30AM AST by NWS San Juan PR

Reported by U.S. National Weather Service Alerts NWS

The National Weather Service in San Juan issued a marine warning for Puerto Rico and nearby waters for a severe thunderstorm capable of producing waterspouts and wind gusts up to 40 knots. Boaters were instructed to seek safe harbor immediately.

At a glance

Affected location: Caribbean waters of Puerto Rico and coastal waters of Saint Croix

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Why it matters

The warning called for immediate protective action by boaters in the affected waters.

Location

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Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 2/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Special Marine Warning issued October 26 at 11:25PM AST until October 27 at 12:30AM AST by NWS San Juan PR

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NWS San Juan issues Special Marine Warning for Puerto Rico coastal watersOct 19, 2026, 6:54 PM UTC
The National Weather Service in San Juan issued a Special Marine Warning for coastal waters of northwestern and southwestern Puerto Rico until 4:00 PM AST. The warning described a severe thunderstorm capable of producing waterspouts and wind gusts up to 40 knots, and instructed boaters to seek safe harbor immediately.
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