This alert expired on 18 June 2026 at 08:15 UTC. It is kept here as a record.
It is the 224th strongest of the 270 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 19 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 18 at 3:32AM EDT until June 18 at 4:15AM EDT by NWS Louisville KY
An estimated 909,379 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 27, 2026 · score 48 · 9.0 km
- June 22, 2026 · score 48 · 13.1 km
- May 19, 2026 · score 48 · 14.5 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 41 out of 100, at 90 % 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) | 41 / 100 |
| Our confidence | 90% |
| Coordinates | 38.4810, -85.7292 |
| Nearest City | Clarksville (20 km) |
| Population Exposed | 909.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T07:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.fa766ca44845f840c7c9f5436935863b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clark, IN; Floyd, IN; Jefferson, IN; Washington, IN; Henry, KY; Jefferson, KY; Oldham, KY; Shelby, KY; Trimble, KY; Crawford, IN; Floyd, IN; Harrison, IN; Orange, IN; Washington, IN |
| Headline | Severe Thunderstorm Warning issued June 18 at 3:32AM EDT until June 18 at 4:15AM EDT by NWS Louisville KY |
| Expires | 2026-06-18T04:15:00-04:00 |
| SenderName | NWS Louisville KY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fa766ca44845f840c7c9f5436935863bf2ed7fd2.001.1","noaa_urn:oid:2.49.0.1.840.0.1a1a5f114305b86a1aff6fab86ff53bfccaa1d94.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 NNE Freetown |
| Spc County | Jackson |
| Spc State | IN |
| Spc Comments | Damage on W County Road 840 N and N County Road 425 W including structural and tree damage...a house was flipped over. Time derived from radar. (IND) |
| Google News RssFeed | weather |
| Google News SourceName | WLKY |
| MergedSources | [{"id":"spc_wind_38.99_-86.13_137","source":"spc","severity":"medium","severityValue":45,"timestamp":1781755620000,"latitude":38.99,"longitude":-86.13},{"id":"spc_wind_39.00_-86.12_138","source":"spc","severity":"medium","severityValue":45,"timestamp":1781755740000,"latitude":39,"longitude":-86.12},{"id":"gnews_weather_494932_168","source":"google_news","severity":"medium","severityValue":40,"timestamp":1781757900000,"latitude":38.25,"longitude":-85.76}] |
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 41/100, near Clarksville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.