This alert expired on 16 March 2026 at 06:34 UTC. It is kept here as a record.
It is the 5th strongest of the 19 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 2:24AM EDT until March 16 at 2:30AM EDT by NWS Wilmington OH
An estimated 21,727 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 11, 2026 · score 34 · 5.1 km
- May 28, 2026 · score 34 · 17.7 km
- July 11, 2026 · score 43 · 20.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 82 % 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) | 34 / 100 |
| Our confidence | 82% |
| Coordinates | 39.4259, -83.4485 |
| Nearest City | Chillicothe (42 km) |
| Population Exposed | 21.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T06:24:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Champaign, OH; Madison, OH; Union, OH; Lewis, KY; Adams, OH; Pike, OH; Scioto, OH |
| Headline | Severe Thunderstorm Warning issued March 16 at 2:24AM EDT until March 16 at 2:30AM EDT by NWS Wilmington OH |
| Expires | 2026-03-16T02:34:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.02c435d512cf3d1efbdb4b8a7be60f99e743b176.001.1","noaa_urn:oid:2.49.0.1.840.0.3d98178cd3a23373efde3042d0f2b104cf765a59.002.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 3 SW Kettering |
| Spc County | Montgomery |
| Spc State | OH |
| Spc Comments | Large tree down blocking road near Alex Bell and Ladera. Time estimated. (ILN) |
| MergedSources | [{"id":"spc_wind_39.66_-84.20_255","source":"spc","severity":"medium","severityValue":45,"timestamp":1773638820000,"latitude":39.66,"longitude":-84.2}] |
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 34/100, near Chillicothe (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.