This alert expired on 10 August 2026 at 01:30 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 17 March 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 9 at 8:33PM EDT until August 9 at 9:30PM EDT by NWS Cleveland OH
An estimated 127,802 people live within 50 km of this point.
Nearby, since 17 March 2026
- June 12, 2026 · score 43 · 15.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 79 % 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) | 43 / 100 |
| Our confidence | 79% |
| Coordinates | 41.1380, -83.5597 |
| Nearest City | Findlay (13 km) |
| Population Exposed | 127.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T00:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.ff3beb9545aa3af9d55904efc1424445 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ottawa, OH; Sandusky, OH; Seneca, OH; Wood, OH; Crawford, OH; Seneca, OH; Wyandot, OH; Lucas, OH; Wood, OH and 2 more areas |
| Headline | Severe Thunderstorm Warning issued August 9 at 8:33PM EDT until August 9 at 9:30PM EDT by NWS Cleveland OH |
| Expires | 2026-08-09T21:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ff3beb9545aa3af9d55904efc1424445ec722100.001.1","noaa_urn:oid:2.49.0.1.840.0.9a6463aa9ffc9d3e91dbaf73bc6276eaea7babf3.001.1","noaa_urn:oid:2.49.0.1.840.0.9ab0c5f55b9e5b69b689b84b42c6a4217ca40f7e.001.1","noaa_urn:oid:2.49.0.1.840.0.f3db8d55892d993e7c8c36caaa91eac450c41196.002.1","noaa_urn:oid:2.49.0.1.840.0.bed64d99d5d1c2c1f90e9103df3eea61c291f259.002.1"] |
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 Findlay?
Calamity.live data shows a weather event with CalamityScore 43/100, near Findlay (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.