This alert expired on 22 June 2026 at 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 262 recorded within 20 km of this point since 16 March 2026 — 218 others scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 21 at 10:06PM EDT until June 21 at 10:45PM EDT by NWS Louisville KY
An estimated 901,876 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 48 · 10.7 km
- June 18, 2026 · score 41 · 13.1 km
- May 16, 2026 · score 48 · 16.2 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 79 % 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 | 79% |
| Coordinates | 38.5010, -85.5810 |
| Nearest City | Clarksville (27 km) |
| Population Exposed | 901.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-22T02:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b562797079ec5f7d167a48d39ab45020d9991d4b.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clark, IN; Floyd, IN; Henry, KY; Jefferson, KY; Oldham, KY; Trimble, KY |
| Headline | Severe Thunderstorm Warning issued June 21 at 10:06PM EDT until June 21 at 10:45PM EDT by NWS Louisville KY |
| Expires | 2026-06-21T22:45:00-04:00 |
| SenderName | NWS Louisville KY |
| 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 Clarksville?
Calamity.live data shows a weather event with CalamityScore 48/100, near Clarksville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.