This alert expired on 6 June 2026 at 22:30 UTC. It is kept here as a record.
It is the 9th strongest of the 26 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 1 April 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 5:41PM EDT until June 6 at 6:30PM EDT by NWS Cleveland OH
An estimated 95,199 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 12, 2026 · score 43 · 18.7 km
- June 12, 2026 · score 43 · 19.3 km
- September 3, 2026 · score 37 · 23.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 40.8009, -83.1726 |
| Nearest City | Marion (24 km) |
| Population Exposed | 95.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T21:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.002ae32e7d0117401d7f0627b541dce1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Erie, OH; Ottawa, OH; Delaware, OH; Franklin, OH; Licking, OH; Darke, OH; Montgomery, OH; Preble, OH |
| Headline | Severe Thunderstorm Warning issued June 6 at 5:41PM EDT until June 6 at 6:30PM EDT by NWS Cleveland OH |
| Expires | 2026-06-06T18:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.002ae32e7d0117401d7f0627b541dce120fffe6b.001.1","noaa_urn:oid:2.49.0.1.840.0.4b47540af91f37167fa67c4c2348ba022a5d9483.001.1","noaa_urn:oid:2.49.0.1.840.0.4083679d9d86d802a17c258c739aea0de25555b6.001.1","noaa_urn:oid:2.49.0.1.840.0.b7b900daaebe6bef29e0391deb1b00f648103847.001.1"] |
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 Marion?
Calamity.live data shows a weather event with CalamityScore 39/100, near Marion (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.