This alert expired on 12 June 2026 at 23:15 UTC. It is kept here as a record.
It is the 4th strongest of the 14 detections recorded within 20 km of this point since 23 May 2026. The last comparable one was on 9 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 12 at 6:42PM EDT until June 12 at 7:15PM EDT by NWS Miami FL
An estimated 17,690 people live within 50 km of this point.
Nearby, since 23 May 2026
- July 10, 2026 · score 34 · 4.1 km
- August 13, 2026 · score 34 · 4.9 km
- July 15, 2026 · score 39 · 11.4 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 80 % 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 | 80% |
| Coordinates | 25.8083, -81.3200 |
| Nearest City | Marco Island (43 km) |
| Population Exposed | 17.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T22:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ef8c5644892b545da2bd10fc1c0c22d7d291e15c.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM; Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM |
| Headline | Special Marine Warning issued June 12 at 6:42PM EDT until June 12 at 7:15PM EDT by NWS Miami FL |
| Expires | 2026-06-12T19:15:00-04:00 |
| SenderName | NWS Miami 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 Marco Island?
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 187 scientific monitoring sources.