This alert expired on 25 June 2026 at 22:15 UTC. It is kept here as a record.
No stronger detection stands among the 89 recorded within 20 km of this point since 11 March 2026 — 28 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 25 at 5:31PM EDT until June 25 at 6:15PM EDT by NWS Cleveland OH
An estimated 1,559,725 people live within 50 km of this point.
Nearby, since 11 March 2026
- August 10, 2026 · score 52 · 3.5 km
- May 10, 2026 · score 52 · 4.6 km
- May 10, 2026 · score 52 · 5.9 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 76 % 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 | 76% |
| Coordinates | 41.4733, -81.8723 |
| Nearest City | Rocky River (3 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T21:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9cd8721fdaa8854afb6d585d114668cf |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cuyahoga, OH; Geauga, OH; Summit, OH; St. Clair, MI; Belmont, OH; Guernsey, OH; Harrison, OH; Muskingum, OH; Noble, OH |
| Headline | Severe Thunderstorm Warning issued June 25 at 5:31PM EDT until June 25 at 6:15PM EDT by NWS Cleveland OH |
| Expires | 2026-06-25T18:15:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9cd8721fdaa8854afb6d585d114668cfacdf0d7b.001.1","noaa_urn:oid:2.49.0.1.840.0.ef8a61f557dbebe946831c82badd06bb98a66aa1.001.1","noaa_urn:oid:2.49.0.1.840.0.84dea370d8c30783812e5389d79cb7194f706cd9.001.1"] |
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 Rocky River (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.