This alert expired on 15 March 2026 at 23:45 UTC. It is kept here as a record.
No stronger detection stands among the 127 recorded within 20 km of this point since 15 March 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 6:10PM CDT until March 15 at 6:45PM CDT by NWS Lincoln IL
An estimated 18,181 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 1, 2026 · score 39 · 6.8 km
- May 31, 2026 · score 39 · 6.8 km
- July 11, 2026 · score 34 · 17.1 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 58 out of 100, at 87 % 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 | Critical |
| Calamity Score (ours) | 58 / 100 |
| Our confidence | 87% |
| Coordinates | 37.5531, -90.0480 |
| Nearest City | Farmington (41 km) |
| Population Exposed | 18.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T23:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.c40d763a14878dc8dfabc0efb0784e9a |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | De Witt, IL; Macon, IL; Logan, IL; Clinton, IL; Washington, IL and 5 more areas |
| Headline | Tornado Warning issued March 15 at 6:10PM CDT until March 15 at 6:45PM CDT by NWS Lincoln IL |
| Expires | 2026-03-15T18:45:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c40d763a14878dc8dfabc0efb0784e9a6a0f0604.002.1","noaa_urn:oid:2.49.0.1.840.0.bfbee664386d60bac44f68fb21b0f4975834e9ca.001.1","noaa_urn:oid:2.49.0.1.840.0.a95a0969ec539eb2cea5c1ed646594b36e9aa84c.001.1","noaa_urn:oid:2.49.0.1.840.0.2558f5da9164901623fe094f22276b53a4d51386.001.1","noaa_urn:oid:2.49.0.1.840.0.f840caf9fb555408ba518272380921fc82e6fd7c.001.1","noaa_urn:oid:2.49.0.1.840.0.9ac084940755a8a14859a3773823a1a2be312335.001.1","noaa_urn:oid:2.49.0.1.840.0.f4277ae82aef2c101d3d74c850a6d3c02e0db2f1.001.1","noaa_urn:oid:2.49.0.1.840.0.51f71a3d05fd2895a81729b210d6ca79cb504386.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 ENE Leadington |
| Spc County | Ste. Genevieve |
| Spc State | MO |
| Spc Comments | Tree debris is blocking a part of Hwy D just north of Hwy O. Time of damage estimated from radar. (LSX) |
| Iem TypeSummary | D |
| Iem City | 4 ENE Leadington |
| Iem County | Ste. Genevieve |
| Iem State | MO |
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 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 58/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.