This alert expired on 18 May 2026 at 15:00 UTC. It is kept here as a record.
No stronger detection stands among the 226 recorded within 20 km of this point since 15 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 9:40AM CDT until May 18 at 10:00AM CDT by NWS Lincoln IL
An estimated 132,665 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 12, 2026 · score 43 · 17.9 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 81 % 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 | 81% |
| Coordinates | 40.3625, -88.8344 |
| Nearest City | Bloomington (19 km) |
| Population Exposed | 132.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T14:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b0a3281fad1f96d708351899a451d3b5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | McLean, IL; Marshall, IL; Woodford, IL; De Witt, IL; Macon, IL; Piatt, IL |
| Headline | Severe Thunderstorm Warning issued May 18 at 9:40AM CDT until May 18 at 10:00AM CDT by NWS Lincoln IL |
| Expires | 2026-05-18T10:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b0a3281fad1f96d708351899a451d3b5bac1764c.001.1","noaa_urn:oid:2.49.0.1.840.0.8c0a04f61e397ef431ed6b34d26008a02788f0d1.001.1"] |
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 Bloomington?
Calamity.live data shows a weather event with CalamityScore 43/100, near Bloomington (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.