This alert expired on 21 July 2026 at 19:15 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 15 March 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 21 at 2:52PM EDT until July 21 at 3:15PM EDT by NWS Wilmington OH
An estimated 631,425 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 18, 2026 · score 72 · 14.1 km
- June 18, 2026 · score 72 · 15.0 km
- July 18, 2026 · score 48 · 17.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 out of 100, at 79 % 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 | Critical |
| Calamity Score (ours) | 72 / 100 |
| Our confidence | 79% |
| Coordinates | 38.9929, -84.2243 |
| Nearest City | Fort Thomas (22 km) |
| Population Exposed | 631.4K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-07-21T18:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d10046299fd52758488fe888b480a4eb60d2b2d8.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clermont, OH |
| Headline | Tornado Warning issued July 21 at 2:52PM EDT until July 21 at 3:15PM EDT by NWS Wilmington OH |
| Expires | 2026-07-21T15:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 Fort Thomas?
Calamity.live data shows a weather event with CalamityScore 72/100, near Fort Thomas (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.