Special Marine Warning for Gulfside 9 Reef Area
If you are in immediate danger, call emergency services now.
For real-time, official alerts and instructions for your exact location, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia) as applicable. This article is a data summary, not a substitute for the issuing agency's live warning.
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Key West has issued a Special Marine Warning for Gulf waters near Gulfside 9 Reef due to a strong thunderstorm with wind gusts of 34 knots or greater.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Gulf of America
- Issued
- September 10, 2026
- Issuing authority
- NWS Key West FL
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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Special Marine Warning issued by NWS Key West FL. Effective from September 10, 2026 at 12:00 PM EDT until September 10, 2026 at 1:00 PM EDT.
Affected Areas
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms; Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 fathoms. Locations include Gulfside 10 Reef, Gulfside 8 Reef, Gulfside 9 Reef, and Gulfside 5 Reef.
What You Should Do
Boaters should seek safe harbor as quickly and as safely as possible. When downpours reduce visibility, slow down. Prepare for wind gusts in excess of 34 knots, steep and fast-building seas, frequent lightning, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets.
Expected Conditions
At 12:00 PM EDT, a strong thunderstorm was located near Gulfside 9 Reef, moving northwest at 10 knots. Hazard includes wind gusts 34 knots or greater. Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours.
Timeline
Alert effective September 10, 2026 from 12:00 PM EDT to 1:00 PM EDT.
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 (1,139 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 10, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.