This alert expired on 16 March 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 399 recorded within 20 km of this point since 15 March 2026 — 3 others scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 6:43PM CDT until March 15 at 7:15PM CDT by NWS Lincoln IL
An estimated 240,970 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 11, 2026 · score 67 · 5.2 km
- June 18, 2026 · score 49 · 8.4 km
- June 20, 2026 · score 43 · 12.0 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 67 out of 100, at 87 % 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 | 87% |
| Coordinates | 39.7720, -88.5580 |
| Nearest City | Decatur (34 km) |
| Population Exposed | 241.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-15T23:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2527ee621f747f07fd97c474067887924409b764.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Champaign, IL; Douglas, IL; Moultrie, IL; Piatt, IL |
| Headline | Tornado Warning issued March 15 at 6:43PM CDT until March 15 at 7:15PM CDT by NWS Lincoln IL |
| Expires | 2026-03-15T19:15:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| Iem TypeSummary | N |
| Iem Magnitude | 53 |
| Iem Unit | MPH |
| Iem City | Willard Airport |
| Iem County | Champaign |
| Iem State | IL |
| Iem Wfo | ILX |
| Iem Remark | ASOS station KCMI Willard Arpt. |
| MergedSources | [{"id":"iem_N_40.030_-88.280_1773597480000","source":"iem","severity":"low","severityValue":25,"timestamp":1773597480000,"latitude":40.03,"longitude":-88.28},{"id":"iem_N_39.830_-88.870_1773604620000","source":"iem","severity":"low","severityValue":25,"timestamp":1773604620000,"latitude":39.83,"longitude":-88.87},{"id":"iem_D_39.520_-89.050_1773616800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773616800000,"latitude":39.52,"longitude":-89.05},{"id":"iem_C_40.030_-88.970_1773616680000","source":"iem","severity":"low","severityValue":25,"timestamp":1773616680000,"latitude":40.03,"longitude":-88.97},{"id":"iem_G_39.390_-89.140_1773616200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773616200000,"latitude":39.39,"longitude":-89.14},{"id":"iem_N_40.030_-88.280_1773597180000","source":"iem","severity":"low","severityValue":25,"timestamp":1773597180000,"latitude":40.03,"longitude":-88.28}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 67/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.