This alert expired on 5 September 2026 at 06:15 UTC. It is kept here as a record.
It is the 21st strongest of the 38 detections recorded within 20 km of this point since 14 March 2026. The last comparable one was on 6 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 5 at 1:37AM EDT until September 5 at 2:15AM EDT by NWS Northern Indiana
Nearby, since 14 March 2026
- March 16, 2026 · score 22 · 5.8 km
- March 15, 2026 · score 22 · 5.8 km
- September 5, 2026 · score 16 · 7.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 41.8001, -84.9724 |
| Nearest City | Battle Creek (60 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-05T05:37:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.1ff16d0dfe355db72b727897d2dba09fe35fab25.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lagrange, IN; Branch, MI; St. Joseph, MI; Hillsdale, MI; Williams, OH |
| Headline | Severe Thunderstorm Warning issued September 5 at 1:37AM EDT until September 5 at 2:15AM EDT by NWS Northern Indiana |
| Expires | 2026-09-05T02:15:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1ff16d0dfe355db72b727897d2dba09fe35fab25.001.1","noaa_urn:oid:2.49.0.1.840.0.305464f0d848316d1a443bc710ae8d8dc9ad6900.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.