Right now
The most recent data we hold from NOAA arrived 12 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 18 May 2026 at 23:48 UTC. It is kept here as a record.
It is the 6th strongest of the 58 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 7:38PM EDT until May 18 at 7:45PM EDT by NWS Wilmington OH
An estimated 662,651 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 18, 2026 · score 72 · 1.9 km
- July 21, 2026 · score 41 · 4.6 km
- May 25, 2026 · score 48 · 12.7 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 85 % 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) | 48 / 100 |
| Our confidence | 85% |
| Coordinates | 39.1517, -84.9983 |
| Nearest City | Burlington (28 km) |
| Population Exposed | 662.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T23:38:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b0634b680972da9b7cc14ef20726bd5e6b3d7871.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dearborn, IN; Franklin, IN |
| Headline | Severe Thunderstorm Warning issued May 18 at 7:38PM EDT until May 18 at 7:45PM EDT by NWS Wilmington OH |
| Expires | 2026-05-18T19:48:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | WCPO 9 Cincinnati |
| MergedSources | [{"id":"gnews_weather_494205_167","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779140070000,"latitude":39.13,"longitude":-84.51}] |
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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