This alert expired on 10 August 2026 at 13:45 UTC. It is kept here as a record.
It is the 21st strongest of the 84 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 10 at 8:56AM EDT until August 10 at 9:45AM EDT by NWS Cleveland OH
An estimated 1,934,965 people live within 50 km of this point.
Nearby, since 11 March 2026
- August 22, 2026 · score 52 · 7.4 km
- June 25, 2026 · score 52 · 9.2 km
- April 1, 2026 · score 52 · 10.6 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 91 % 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) | 46 / 100 |
| Our confidence | 91% |
| Coordinates | 41.3974, -81.5267 |
| Nearest City | Maple Heights (4 km) |
| Population Exposed | 1.9M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T12:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8de42a29ca2520749086d7a47c9f68d7 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Medina, OH; Portage, OH; Summit, OH; Cuyahoga, OH; Geauga, OH; Lake, OH; Summit, OH; Cuyahoga, OH; Lorain, OH |
| Headline | Severe Thunderstorm Warning issued August 10 at 8:56AM 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 | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8de42a29ca2520749086d7a47c9f68d74e95d021.001.1","noaa_urn:oid:2.49.0.1.840.0.8368d5693d039b428f286efe106e52a60da78de7.001.1","noaa_urn:oid:2.49.0.1.840.0.dff60f4416ef2f94e7c04c6f6114a29f4e091478.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 44 |
| Iem Unit | MPH |
| Iem City | 3 WNW Vermilion |
| Iem County | LEZ145 |
| Iem State | OH |
| Iem Wfo | CLE |
| Iem Remark | 38 knot wind gust. Mesonet station VRMO1 2 WNW Vermilion. |
| 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 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 46/100, near Maple Heights (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.