Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 6 June 2026 at 21:15 UTC. It is kept here as a record.
It is the 5th strongest of the 41 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 27 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 4:24PM EDT until June 6 at 5:15PM EDT by NWS Wilmington OH
An estimated 1,225,093 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 6, 2026 · score 52 · 3.4 km
- March 16, 2026 · score 52 · 6.0 km
- May 20, 2026 · score 52 · 15.7 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.
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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 40.0756, -83.4811 |
| Nearest City | Marysville (21 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T20:24:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4702b29c2b0c764aff2d6a49049ed01c0c4bde0c.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Champaign, OH; Madison, OH; Union, OH |
| Headline | Severe Thunderstorm Warning issued June 6 at 4:24PM EDT until June 6 at 5:15PM EDT by NWS Wilmington OH |
| Expires | 2026-06-06T17:15:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
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.
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