This alert expired on 11 August 2026 at 03:15 UTC. It is kept here as a record.
No stronger detection stands among the 30 recorded within 20 km of this point since 12 March 2026 — 2 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: Severe Thunderstorm Warning issued August 10 at 10:27PM EDT until August 10 at 11:15PM EDT by NWS Charleston WV
An estimated 117,911 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 19, 2026 · score 39 · 4.5 km
- March 12, 2026 · score 43 · 9.7 km
- August 10, 2026 · score 39 · 12.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 79% |
| Coordinates | 40.5423, -83.7128 |
| Nearest City | Lima (40 km) |
| Population Exposed | 117.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T02:27:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.887231c67b6193a02b96958ed2cd004f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Morgan, OH; Perry, OH; Delaware, OH; Hardin, OH; Logan, OH; Union, OH; Auglaize, OH; Mercer, OH; Shelby, OH and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 10 at 10:27PM EDT until August 10 at 11:15PM EDT by NWS Charleston WV |
| Expires | 2026-08-10T23:15:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.887231c67b6193a02b96958ed2cd004f02f737a1.001.1","noaa_urn:oid:2.49.0.1.840.0.850b257a166a8ef69ea5f05e2835ab35add2bd0b.001.1","noaa_urn:oid:2.49.0.1.840.0.8655cac0a6c6720fa2a5b7b95fb1f891a3289f90.001.1","noaa_urn:oid:2.49.0.1.840.0.2b13a55e644f9cdd53fffc90c70c28b2699f5e56.001.1","noaa_urn:oid:2.49.0.1.840.0.77005f84a8c77d73b5da07edceb2cb3d07f19ea7.001.1","noaa_urn:oid:2.49.0.1.840.0.545608808648c7f8b89ae171318ae058726ac5d7.002.1","noaa_urn:oid:2.49.0.1.840.0.1e2ee63e9f1259a57ae4fd501a187c7276471212.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.