Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is in it.
5 other detections within 20 km in the last 24 hours, the nearest 1 km from here.
This alert expired on 11 September 2026 at 00:30 UTC. It is kept here as a record.
It is the 17th strongest of the 27 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 10 at 7:55PM EDT until September 10 at 8:30PM EDT by NWS Key West FL
An estimated 25,755 people live within 50 km of this point.
Nearby, since 16 March 2026
- September 11, 2026 · score 28 · 2.6 km
- March 16, 2026 · score 34 · 3.8 km
- July 6, 2026 · score 34 · 4.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 81% |
| Coordinates | 24.8889, -81.9748 |
| Nearest City | Key West (42 km) |
| Population Exposed | 25.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T23:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a6d280318ae7b3e13c59a40767230ddca760df27.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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; Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms |
| Headline | Special Marine Warning issued September 10 at 7:55PM EDT until September 10 at 8:30PM EDT by NWS Key West FL |
| Expires | 2026-09-10T20:30:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a6d280318ae7b3e13c59a40767230ddca760df27.001.1","noaa_urn:oid:2.49.0.1.840.0.698386d6f58f91ac7e690b7795a3bde03c67a7b5.001.1"] |
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 8 March 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.
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