First published 9/18/2026, 10:40:15 PM · Last updated 9/18/2026, 10:40:15 PM

Special Marine Warning — NWS Key West FL (issued Sept 18 18:20 EDT)

National Weather Service (NWS) Key West issued a Special Marine Warning for the Key West, FL area from 6:20 PM EDT to 6:45 PM EDT on Sept 18, 2026, indicating short-duration hazardous conditions affecting local marine waters during that period.

Categories: severe-weather-and-natural-disasters, travel-and-transportation

Generated scores

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

Confidence: 9/10How 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: 6/10The 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).
Positivity: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 10/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

Immediate marine hazards can threaten small craft and recreational boats, endanger people on the water, and disrupt local marine transportation and activities. Mariners and coastal operators in the Key West area should take protective actions while the warning is in effect.

Location

Sources

Special Marine Warning issued September 18 at 6:20PM EDT until September 18 at 6:45PM EDT by NWS Key West FL

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