This alert expired on 10 August 2026 at 13:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 79 detections recorded within 20 km of this point since 17 March 2026. 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 10 at 9:05AM EDT until August 10 at 9:45AM EDT by NWS Cleveland OH
An estimated 727,008 people live within 50 km of this point.
Nearby, since 17 March 2026
- September 3, 2026 · score 9 · 13.3 km
- September 2, 2026 · score 46 · 16.0 km
- September 3, 2026 · score 76 · 16.3 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 91 % 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 | 91% |
| Coordinates | 41.4363, -81.0831 |
| Nearest City | Aurora (26 km) |
| Population Exposed | 727.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T13:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8f562a1f2b866e9075f82aea73fa4deb |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Medina, OH; Portage, OH; Summit, OH; Ashtabula, OH; Trumbull, OH |
| Headline | Severe Thunderstorm Warning issued August 10 at 9:05AM EDT until August 10 at 9:45AM EDT by NWS Cleveland OH |
| Expires | 2026-08-10T09:45:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8f562a1f2b866e9075f82aea73fa4deb6fa31f4a.001.1","noaa_urn:oid:2.49.0.1.840.0.85bb06478df9ca4a9be9c2e3a400dccb7000e638.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | Copley |
| Iem County | Summit |
| Iem State | OH |
| Iem Wfo | CLE |
| Iem Remark | Estimated 60 mph wind gust. |
| Google News RssFeed | weather |
| Google News SourceName | WKYC |
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 Aurora?
Calamity.live data shows a weather event with CalamityScore 48/100, near Aurora (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.