This alert expired on 17 July 2026 at 14:45 UTC. It is kept here as a record.
It is the 5th strongest of the 7 detections recorded within 20 km of this point since 18 May 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 July 17 at 9:59AM EDT until July 17 at 10:45AM EDT by NWS Miami FL
An estimated 137,818 people live within 50 km of this point.
Nearby, since 18 May 2026
- July 17, 2026 · score 43 · 12.0 km
- July 18, 2026 · score 43 · 18.4 km
- August 6, 2026 · score 37 · 19.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 82% |
| Coordinates | 25.9577, -81.9354 |
| Nearest City | Marco Island (22 km) |
| Population Exposed | 137.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-17T13:59:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.65871b2ad9180e29475fe30caf73f46071831c55.001.1 |
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; Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM |
| Headline | Special Marine Warning issued July 17 at 9:59AM EDT until July 17 at 10:45AM EDT by NWS Miami FL |
| Expires | 2026-07-17T10:45:00-04:00 |
| 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 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.
Want to know when something happens near Marco Island?
Calamity.live data shows a weather event with CalamityScore 37/100, near Marco Island (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.