This alert expired on 4 September 2026 at 19:15 UTC. It is kept here as a record.
It is the 10th strongest of the 46 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 2 September 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 4 at 2:53PM EDT until September 4 at 3:15PM EDT by NWS Jackson KY
An estimated 18,446 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 28, 2026 · score 22 · 1.7 km
- August 2, 2026 · score 39 · 10.1 km
- September 2, 2026 · score 32 · 11.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 81% |
| Coordinates | 37.7480, -83.7160 |
| Nearest City | Winchester (49 km) |
| Population Exposed | 18.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T18:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.ad0ae86ffdc44e9d6f60b966382b2401256c7f04.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Estill, KY; Lee, KY; Menifee, KY; Powell, KY; Wolfe, KY |
| Headline | Severe Thunderstorm Warning issued September 4 at 2:53PM EDT until September 4 at 3:15PM EDT by NWS Jackson KY |
| Expires | 2026-09-04T15:15:00-04:00 |
| SenderName | NWS Jackson 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 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 in this area?
Calamity.live data shows a weather event with CalamityScore 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.