This alert expired on 12 June 2026 at 05:30 UTC. It is kept here as a record.
It is the 3rd strongest of the 35 detections recorded within 20 km of this point since 27 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 12 at 1:08AM EDT until June 12 at 1:30AM EDT by NWS Cleveland OH
An estimated 413,542 people live within 50 km of this point.
Nearby, since 27 March 2026
- June 14, 2026 · score 43 · 9.6 km
- June 14, 2026 · score 43 · 13.4 km
- August 10, 2026 · score 43 · 13.7 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 81 % 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 | 81% |
| Coordinates | 41.2946, -83.2975 |
| Nearest City | Fremont (16 km) |
| Population Exposed | 413.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T05:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1635a0c8eebbe99eff4a1caeab33c306 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Crawford, OH; Sandusky, OH; Seneca, OH; Wyandot, OH; Lucas, OH; Ottawa, OH; Sandusky, OH; Wood, OH |
| Headline | Severe Thunderstorm Warning issued June 12 at 1:08AM EDT until June 12 at 1:30AM EDT by NWS Cleveland OH |
| Expires | 2026-06-12T01:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1635a0c8eebbe99eff4a1caeab33c3061b699fc2.001.1","noaa_urn:oid:2.49.0.1.840.0.043db2650c48b83534dc11d7f15c3dc951e80734.001.1"] |
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 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 Fremont?
Calamity.live data shows a weather event with CalamityScore 43/100, near Fremont (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.