This alert expired on 15 March 2026 at 23:45 UTC. It is kept here as a record.
No stronger detection stands among the 474 recorded within 20 km of this point since 15 March 2026 — 7 others scored the same. 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: Tornado Warning issued March 15 at 6:28PM CDT until March 15 at 6:45PM CDT by NWS Lincoln IL
An estimated 73,254 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 24, 2026 · score 43 · 21.9 km
- June 18, 2026 · score 49 · 22.7 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 63 out of 100, at 86 % 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) | 63 / 100 |
| Our confidence | 86% |
| Coordinates | 39.8240, -88.8590 |
| Nearest City | Decatur (8 km) |
| Population Exposed | 73.3K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-15T23:28:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.fc52bb09697762c7d62a9d5705aae01f |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Macon, IL; Moultrie, IL; Shelby, IL; De Witt, IL; Macon, IL |
| Headline | Tornado Warning issued March 15 at 6:28PM 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 | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fc52bb09697762c7d62a9d5705aae01fad3244b6.002.1","noaa_urn:oid:2.49.0.1.840.0.edded2c47291286d4ee8d805194d6d9c5cbc23b5.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 70 |
| Spc Location | 1 ENE Rosamond |
| Spc County | Christian |
| Spc State | IL |
| Spc Comments | (ILX) |
| Iem TypeSummary | N |
| Iem Magnitude | 53 |
| Iem Unit | MPH |
| Iem City | Willard Airport |
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.
Want to know when something happens near Decatur?
Calamity.live data shows a weather event with CalamityScore 63/100, near Decatur (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.