This alert expired on 15 March 2026 at 14:15 UTC. It is kept here as a record.
It is the 66th strongest of the 527 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 13 March 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 8:39AM CDT until March 15 at 9:15AM CDT by NWS Lincoln IL
An estimated 450,012 people live within 50 km of this point.
Nearby, since 10 March 2026
- May 18, 2026 · score 43 · 8.3 km
- August 11, 2026 · score 43 · 10.2 km
- August 10, 2026 · score 43 · 10.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 78 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 78% |
| Coordinates | 40.5533, -89.5033 |
| Nearest City | Morton (7 km) |
| Population Exposed | 450.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T13:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_8955e28a14f531eef6a98a79e9db744352206093_001_1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Peoria, IL; Tazewell, IL |
| Headline | Severe Thunderstorm Warning issued March 15 at 8:39AM CDT until March 15 at 9:15AM CDT by NWS Lincoln IL |
| Expires | 2026-03-15T09:15:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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 Morton?
Calamity.live data shows a weather event with CalamityScore 43/100, near Morton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.