This alert expired on 31 May 2026 at 21:50 UTC. It is kept here as a record.
It is the 7th strongest of the 19 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued May 31 at 5:40PM EDT until May 31 at 5:45PM EDT by NWS Key West FL
An estimated 458,092 people live within 50 km of this point.
Nearby, since 17 March 2026
- June 3, 2026 · score 43 · 4.3 km
- March 17, 2026 · score 43 · 4.8 km
- June 21, 2026 · score 48 · 6.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 78 % 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) | 43 / 100 |
| Our confidence | 78% |
| Coordinates | 25.2305, -80.4085 |
| Nearest City | Homestead (28 km) |
| Population Exposed | 458.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-31T21:40:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ff8d6afbf642428b4c89b961aecc98aafcb88fa1.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound |
| Headline | Special Marine Warning issued May 31 at 5:40PM EDT until May 31 at 5:45PM EDT by NWS Key West FL |
| Expires | 2026-05-31T17:50:00-04:00 |
| SenderName | NWS Key West FL |
| HasExactCoords | true |
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 Homestead?
Calamity.live data shows a weather event with CalamityScore 43/100, near Homestead (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.