Reported by IEM 59 days ago.
No stronger detection stands among the 23 recorded within 20 km of this point since 12 March 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
IEM reported: ASOS station KMNN Marion.
An estimated 144,005 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 12, 2026 · score 39 · 5.1 km
- August 10, 2026 · score 43 · 10.7 km
How we know
Confirmed by 2 independent sources, including IEM.
Our own score for this event is 43 out of 100, at 64 % 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) | 43 / 100 |
| Our confidence | 64% |
| Coordinates | 40.6200, -83.0700 |
| Nearest City | Marion (6 km) |
| Population Exposed | 144.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T00:53:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Score Breakdown
Technical Details
| TypeSummary | G |
| Magnitude | 58 |
| Unit | MPH |
| City | 4 NE Marion |
| County | Marion |
| State | OH |
| Wfo | CLE |
| Remark | ASOS station KMNN Marion. |
| Google News RssFeed | weather |
| Google News SourceName | The Columbus Dispatch |
| MergedSources | [{"id":"gnews_weather_495314_183","source":"google_news","severity":"medium","severityValue":40,"timestamp":1783131840000,"latitude":39.96,"longitude":-83}] |
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 43/100, near Marion (United States), based on data from iem. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.