This alert expired on 6 August 2026 at 15:30 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 17 March 2026 — 11 others scored the same. The last comparable one was on 26 July 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 6 at 11:03AM EDT until August 6 at 11:30AM EDT by NWS Key West FL
An estimated 25,755 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 20, 2026 · score 34 · 7.3 km
- July 26, 2026 · score 34 · 8.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 81% |
| Coordinates | 24.6635, -81.3664 |
| Nearest City | Key West (43 km) |
| Population Exposed | 25.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T15:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.1dca1b843379f5b5f64eedcd008e9066 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Bayside and Gulfside from Craig Key to West End of Seven Mile Bridge; Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef; Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM; 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; Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef; Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM |
| Headline | Special Marine Warning issued August 6 at 11:03AM EDT until August 6 at 11:30AM EDT by NWS Key West FL |
| Expires | 2026-08-06T11:30:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1dca1b843379f5b5f64eedcd008e9066287eecb4.001.1","noaa_urn:oid:2.49.0.1.840.0.57eca92da60b54dda0a68748f0e2431a2a52c57c.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Key West?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.