This alert expired on 10 July 2026 at 22:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 110 detections recorded within 20 km of this point since 22 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 10 at 5:37PM EDT until July 10 at 6:00PM EDT by NWS Wilmington OH
An estimated 1,309,986 people live within 50 km of this point.
Nearby, since 22 March 2026
- July 10, 2026 · score 52 · 6.0 km
- May 26, 2026 · score 52 · 7.2 km
- August 11, 2026 · score 52 · 12.8 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 | 40.3294, -82.7802 |
| Nearest City | Delaware (25 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-10T21:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.de36f19103f8def8a6d14c45bd53f467 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Delaware, OH; Licking, OH; Knox, OH; Morrow, OH |
| Headline | Severe Thunderstorm Warning issued July 10 at 5:37PM EDT until July 10 at 6:00PM EDT by NWS Wilmington OH |
| Expires | 2026-07-10T18:00:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.de36f19103f8def8a6d14c45bd53f4670e1f2ef2.001.1","noaa_urn:oid:2.49.0.1.840.0.b55029b2e1b478caab6a462ddd1617b82e41a6ab.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 Delaware (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.