This alert expired on 11 March 2026 at 01:15 UTC. It is kept here as a record.
No stronger detection stands among the 36 recorded within 20 km of this point since 11 March 2026 — 4 others scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 10 at 7:27PM CDT until March 10 at 8:15PM CDT by NWS Chicago IL
An estimated 547,687 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 12, 2026 · score 72 · 3.3 km
- August 12, 2026 · score 48 · 7.0 km
- June 13, 2026 · score 48 · 7.9 km
How we know
Confirmed by 11 independent sources, including NOAA.
Our own score for this event is 72 out of 100, at 88 % 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) | 72 / 100 |
| Our confidence | 88% |
| Coordinates | 41.1463, -87.3750 |
| Nearest City | Crown Point (30 km) |
| Population Exposed | 547.7K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-03-11T00:27:00.000Z |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Jasper, IN; Newton, IN; Newton, IN |
| Headline | Tornado Warning issued March 10 at 7:27PM CDT until March 10 at 8:15PM CDT by NWS Chicago IL |
| Expires | 2026-03-10T20:15:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d2a75182cab4a4d3c751ed70e481324448a649c1.002.1","noaa_urn:oid:2.49.0.1.840.0.6ae5897d1d0a72ea19e82e29d93e9d7382e5446b.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 300 |
| Spc Location | Kankakee |
| Spc County | Kankakee |
| Spc State | IL |
| Spc Comments | 3 inch diameter hail reported in Kankakee. Relayed via amateur radio. (LOT) |
| MergedSources | [{"id":"spc_tornado_41.08_-87.85_3","source":"spc","severity":"critical","severityValue":95,"timestamp":1773188761990,"latitude":41.08,"longitude":-87.85},{"id":"spc_tornado_41.10_-87.62_4","source":"spc","severity":"critical","severityValue":95,"timestamp":1773188761990,"latitude":41.1,"longitude":-87.62},{"id":"spc_tornado_41.11_-87.56_5","source":"spc","severity":"critical","severityValue":95,"timestamp":1773188761990,"latitude":41.11,"longitude":-87.56},{"id":"spc_wind_41.09_-87.81_15","source":"spc","severity":"medium","severityValue":45,"timestamp":1773188761990,"latitude":41.09,"longitude":-87.81},{"id":"spc_hail_41.02_-88.25_40","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.02,"longitude":-88.25},{"id":"spc_hail_41.06_-88.13_47","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.06,"longitude":-88.13},{"id":"spc_hail_41.06_-88.19_50","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.06,"longitude":-88.19},{"id":"spc_hail_41.07_-88.18_54","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.07,"longitude":-88.18},{"id":"spc_hail_41.14_-88.04_61","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.14,"longitude":-88.04},{"id":"spc_hail_41.12_-87.86_90","source":"spc","severity":"high","severityValue":65,"timestamp":1773188761991,"latitude":41.12,"longitude":-87.86}] |
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 72/100, near Crown Point (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.