This alert expired on 12 June 2026 at 06:00 UTC. It is kept here as a record.
It is the strongest of the 103 detections recorded within 20 km of this point since 27 March 2026. The last comparable one was on 11 June 2026. 20 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued June 11 at 10:22PM EDT until June 12 at 2:00AM EDT by NWS Northern Indiana
An estimated 1,247,659 people live within 50 km of this point.
Nearby, since 27 March 2026
- August 11, 2026 · score 52 · 0.0 km
- August 10, 2026 · score 52 · 0.0 km
- August 9, 2026 · score 52 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 64 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) | 64 / 100 |
| Our confidence | 80% |
| Coordinates | 40.4000, -82.9000 |
| Nearest City | Delaware (18 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T02:22:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d1e48acf634bb1c932910a551cb45d3257cc93e0.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Allen, OH; Fulton, OH; Henry, OH; Putnam, OH |
| Headline | Tornado Watch issued June 11 at 10:22PM EDT until June 12 at 2:00AM EDT by NWS Northern Indiana |
| Expires | 2026-06-12T02:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | false |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 64/100, near Delaware (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.