This alert expired on 9 August 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 44 recorded within 20 km of this point since 11 March 2026 — 7 others scored the same. The last comparable one was on 8 August 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 11:24PM EDT until August 9 at 12:15AM EDT by NWS Charleston WV
An estimated 86,537 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 18, 2026 · score 39 · 7.5 km
- July 21, 2026 · score 32 · 11.1 km
- July 11, 2026 · score 39 · 11.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 81 % 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) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 39.3450, -82.5442 |
| Nearest City | Chillicothe (38 km) |
| Population Exposed | 86.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-09T03:24:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6a5bde7833eeceed737679f2978a8aba526d08ff.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Athens, OH; Jackson, OH; Vinton, OH |
| Headline | Severe Thunderstorm Warning issued August 8 at 11:24PM EDT until August 9 at 12:15AM EDT by NWS Charleston WV |
| Expires | 2026-08-09T00:15:00-04:00 |
| SenderName | NWS Charleston WV |
| 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.
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.