This alert expired on 16 March 2026 at 04:00 UTC. It is kept here as a record.
It is the 6th strongest of the 24 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 11:34PM EDT until March 16 at 12:00AM EDT by NWS Northern Indiana
An estimated 81,160 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 16, 2026 · score 43 · 12.1 km
- June 17, 2026 · score 39 · 18.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 78 % 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) | 39 / 100 |
| Our confidence | 78% |
| Coordinates | 41.8317, -85.3417 |
| Nearest City | Portage (45 km) |
| Population Exposed | 81.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T03:34:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6c60196b89ba8afd29bc6ca8f891bdd0f21f9f27.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lagrange, IN; Branch, MI; St. Joseph, MI |
| Headline | Severe Thunderstorm Warning issued March 15 at 11:34PM EDT until March 16 at 12:00AM EDT by NWS Northern Indiana |
| Expires | 2026-03-16T00:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.