This alert expired on 11 June 2026 at 01:00 UTC. It is kept here as a record.
It is the 18th strongest of the 48 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 10 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 8:13PM EDT until June 10 at 9:00PM EDT by NWS Cleveland OH
An estimated 1,687,195 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 18, 2026 · score 46 · 2.8 km
- June 14, 2026 · score 52 · 8.7 km
- March 16, 2026 · score 52 · 9.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 79 % 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 | 79% |
| Coordinates | 41.2370, -82.0131 |
| Nearest City | Brunswick (14 km) |
| Population Exposed | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T00:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b809828c3a72e02728065e9748761e3c |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Erie, OH; Huron, OH; Lorain, OH; Medina, OH; Stark, OH; Summit, OH; Wayne, OH; Erie, OH; Lorain, OH |
| Headline | Severe Thunderstorm Warning issued June 10 at 8:13PM EDT until June 10 at 9:00PM EDT by NWS Cleveland OH |
| Expires | 2026-06-10T21:00:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b809828c3a72e02728065e9748761e3ce31c41fb.001.1","noaa_urn:oid:2.49.0.1.840.0.51644973cc8d3a045bd70ec6152db7263a44a7f4.002.1","noaa_urn:oid:2.49.0.1.840.0.8a9af600bdbf624ac99b55ba18a565861e13608b.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 46/100, near Brunswick (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.