This alert expired on 12 June 2026 at 05:00 UTC. It is kept here as a record.
It is the 6th strongest of the 49 detections recorded within 20 km of this point since 26 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 12 at 12:27AM EDT until June 12 at 1:00AM EDT by NWS Northern Indiana
An estimated 110,594 people live within 50 km of this point.
Nearby, since 26 March 2026
- September 4, 2026 · score 37 · 11.8 km
- June 12, 2026 · score 37 · 12.8 km
- September 4, 2026 · score 37 · 14.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Our confidence | 81% |
| Coordinates | 41.2241, -84.0170 |
| Nearest City | Defiance (29 km) |
| Population Exposed | 110.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T04:27:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a5184ad574dd94e255135234f60eff57 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Fulton, OH; Lenawee, MI; Auglaize, OH; Champaign, OH; Hardin, OH; Logan, OH; Miami, OH; Shelby, OH and 7 more areas |
| Headline | Severe Thunderstorm Warning issued June 12 at 12:27AM EDT until June 12 at 1:00AM EDT by NWS Northern Indiana |
| Expires | 2026-06-12T01:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a5184ad574dd94e255135234f60eff572b3cd3cb.001.1","noaa_urn:oid:2.49.0.1.840.0.e669b81c9b01dc8bd66f16b1cd05ae5c581966f7.001.1","noaa_urn:oid:2.49.0.1.840.0.a3ab1344b9ec68fb387121c7f30e7344916eaa66.002.1","noaa_urn:oid:2.49.0.1.840.0.5be2c335c39050cc3e6fb9a9cd9e29d3939170b7.001.1","noaa_urn:oid:2.49.0.1.840.0.4c6f12e1279e03455bf341f0a9d83d79451d4735.001.1","noaa_urn:oid:2.49.0.1.840.0.b15279656f07e6eeb2b89813540e6a7ea4925302.001.1","noaa_urn:oid:2.49.0.1.840.0.aa91c0bc63ac06cdff4de7707ae4437e66548b22.001.1","noaa_urn:oid:2.49.0.1.840.0.c05f587f43657ff4ca65216b5bcbb2594d18787f.001.1","noaa_urn:oid:2.49.0.1.840.0.095f251988797e06e7be36a30c160880ca4bb7a4.001.1","noaa_urn:oid:2.49.0.1.840.0.3148a1c4f3538fa18994cb397443ae92aadfd94b.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 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 near Defiance?
Calamity.live data shows a weather event with CalamityScore 37/100, near Defiance (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.