This alert expired on 16 March 2026 at 05:00 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 16 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued March 16 at 12:07AM EDT until March 16 at 1:00AM EDT by NWS Key West FL
An estimated 25,755 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 34 · 18.5 km
- June 3, 2026 · score 28 · 20.2 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 77 % 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 | 77% |
| Coordinates | 24.8000, -82.1720 |
| Nearest City | Key West (48 km) |
| Population Exposed | 25.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T04:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.e49718830f83f28f0b14522c37bc69a6 |
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 |
| Headline | Special Marine Warning issued March 16 at 12:07AM EDT until March 16 at 1:00AM EDT by NWS Key West FL |
| Expires | 2026-03-16T01:00:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e49718830f83f28f0b14522c37bc69a6ae1a35b4.001.1","noaa_urn:oid:2.49.0.1.840.0.3c2bf8c8cf17c89fae8c7c36566c428b5584e52b.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 in this area?
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 185 scientific monitoring sources.