This alert expired on 25 June 2026 at 02:45 UTC. It is kept here as a record.
It is the 20th strongest of the 77 detections recorded within 20 km of this point since 13 April 2026. Another comparable one was recorded here earlier the same day. 26 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 9:10PM CDT until June 24 at 9:45PM CDT by NWS Chicago IL
An estimated 732,475 people live within 50 km of this point.
Nearby, since 13 April 2026
- July 27, 2026 · score 72 · 9.5 km
- August 10, 2026 · score 48 · 9.9 km
- June 25, 2026 · score 52 · 10.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 79% |
| Coordinates | 41.3914, -87.1457 |
| Nearest City | Valparaiso (11 km) |
| Population Exposed | 732.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T02:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9c9ea591896b363e45265d05e38a2157eeaf0807.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lake, IN; Porter, IN |
| Headline | Severe Thunderstorm Warning issued June 24 at 9:10PM CDT until June 24 at 9:45PM CDT by NWS Chicago IL |
| Expires | 2026-06-24T21:45:00-05:00 |
| SenderName | NWS Chicago IL |
| 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 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 48/100, near Valparaiso (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.