This alert expired on 11 August 2026 at 17:00 UTC. It is kept here as a record.
No stronger detection stands among the 60 recorded within 20 km of this point since 26 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued August 11 at 12:39PM EDT until August 11 at 1:00PM EDT by NWS Northern Indiana
An estimated 266,243 people live within 50 km of this point.
Nearby, since 26 March 2026
- June 12, 2026 · score 67 · 5.7 km
- July 18, 2026 · score 37 · 9.4 km
- July 27, 2026 · score 67 · 11.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 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 | critical |
| Calamity Score (ours) | 67 / 100 |
| Our confidence | 79% |
| Coordinates | 41.4910, -86.5724 |
| Nearest City | La Porte (17 km) |
| Population Exposed | 266.2K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-08-11T16:39:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.9acca22b1cf8943c41c85b8c321dba74 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Pulaski, IN; Starke, IN; Elkhart, IN; Kosciusko, IN; Marshall, IN; St. Joseph, IN; Berrien, MI; Cass, MI; La Porte, IN |
| Headline | Tornado Warning issued August 11 at 12:39PM EDT until August 11 at 1:00PM EDT by NWS Northern Indiana |
| Expires | 2026-08-11T13:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9acca22b1cf8943c41c85b8c321dba7450167dd4.001.1","noaa_urn:oid:2.49.0.1.840.0.d972db82dd9af4965c254ac0495d933936d15879.001.1","noaa_urn:oid:2.49.0.1.840.0.a1100437d122ee47df344ede756d1893e78d89e6.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 67/100, near La Porte (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.