This alert expired on 11 August 2026 at 20:15 UTC. It is kept here as a record.
No stronger detection stands among the 44 recorded within 20 km of this point since 16 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued August 11 at 3:51PM EDT until August 11 at 4:15PM EDT by NWS Wilmington OH
An estimated 535,373 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 21, 2026 · score 72 · 6.9 km
- June 25, 2026 · score 43 · 10.8 km
- June 18, 2026 · score 72 · 11.9 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 72 out of 100, at 91 % 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 | 91% |
| Coordinates | 38.8598, -84.3947 |
| Nearest City | Independence (15 km) |
| Population Exposed | 535.4K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-08-11T19:51:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.49c8629c6e611d2977a0842f7f82e671 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Boone, KY; Gallatin, KY; Grant, KY; Kenton, KY; Pendleton, KY; Campbell, KY; Kenton, KY; Clermont, OH; Hamilton, OH; Switzerland, IN; Boone, KY; Campbell, KY; Gallatin, KY; Kenton, KY and 1 more areas |
| Headline | Tornado Warning issued August 11 at 3:51PM EDT until August 11 at 4:15PM EDT by NWS Wilmington OH |
| Expires | 2026-08-11T16:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.49c8629c6e611d2977a0842f7f82e671fd194bba.001.1","noaa_urn:oid:2.49.0.1.840.0.dfa524bdae4c2d5a50cd75c7bd6c6f6f08e7317e.001.1","noaa_urn:oid:2.49.0.1.840.0.6dbd9b6bbb45d272ccbddd38cf5b5195e4b8a6b1.002.1","noaa_urn:oid:2.49.0.1.840.0.eeb51bb1fa7b52820427aabd16014139b74588fe.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 48 |
| Iem Unit | MPH |
| Iem City | 2 W Turpin Hills |
| Iem County | Hamilton |
| Iem State | OH |
| Iem Wfo | ILN |
| Iem Remark | ASOS station KLUK Cincinnati Lunken Field. |
| Google News RssFeed | weather |
| Google News SourceName | WCPO 9 Cincinnati |
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 Independence?
Calamity.live data shows a weather event with CalamityScore 72/100, near Independence (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.