This alert expired on 27 June 2026 at 22:00 UTC. It is kept here as a record.
No stronger detection stands among the 18 recorded within 20 km of this point since 16 March 2026 — 7 others scored the same. The last comparable one was on 25 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 27 at 5:33PM EDT until June 27 at 6:00PM EDT by NWS Miami FL
An estimated 600,397 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 10, 2026 · score 48 · 10.4 km
- July 10, 2026 · score 48 · 13.2 km
- May 17, 2026 · score 48 · 17.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 77% |
| Coordinates | 26.3578, -81.6256 |
| Nearest City | Bonita Springs (16 km) |
| Population Exposed | 600.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-27T21:33:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.62d43029466932644b17f9986b0aa8878d114351.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Collier, FL |
| Headline | Severe Thunderstorm Warning issued June 27 at 5:33PM EDT until June 27 at 6:00PM EDT by NWS Miami FL |
| Expires | 2026-06-27T18:00:00-04:00 |
| 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 Bonita Springs?
Calamity.live data shows a weather event with CalamityScore 48/100, near Bonita Springs (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.