This alert expired on 6 June 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 92 recorded within 20 km of this point since 13 March 2026 — 32 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 6:14PM EDT until June 6 at 6:45PM EDT by NWS Wilmington OH
An estimated 1,307,587 people live within 50 km of this point.
Nearby, since 13 March 2026
- June 6, 2026 · score 52 · 10.5 km
- March 27, 2026 · score 52 · 11.3 km
- April 22, 2026 · score 52 · 14.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 80 % 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 40.1514, -82.9857 |
| Nearest City | Westerville (5 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T22:14:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0a56c5a52d8b4d9779eba658dabe8d6d |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Butler, OH; Montgomery, OH; Preble, OH; Clark, OH; Fayette, OH; Greene, OH; Madison, OH; Guernsey, OH; Muskingum, OH; Noble, OH and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 6 at 6:14PM EDT until June 6 at 6:45PM EDT by NWS Wilmington OH |
| Expires | 2026-06-06T18:45:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0a56c5a52d8b4d9779eba658dabe8d6dabea0762.001.1","noaa_urn:oid:2.49.0.1.840.0.a5c457596288256339736771ab2d7e8db822fe40.001.1","noaa_urn:oid:2.49.0.1.840.0.19ed6ae762870636a730d20e90dbfcf06fc2338f.001.1","noaa_urn:oid:2.49.0.1.840.0.f8dc968b75c66450c5201043efac72ca3554efd9.001.1","noaa_urn:oid:2.49.0.1.840.0.b8d80e377540ffbcf5e5219a17c5ab3251b35a7c.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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Westerville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.