Right now
The most recent data we hold from NOAA arrived 25 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 15 March 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 15 March 2026 — one other scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 6:01PM CDT until March 15 at 6:15PM CDT by NWS St Louis MO
An estimated 78,748 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 21, 2026 · score 63 · 2.7 km
- June 25, 2026 · score 43 · 9.6 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 63 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) | 63 / 100 |
| Our confidence | 87% |
| Coordinates | 38.8202, -89.4574 |
| Nearest City | Edwardsville (43 km) |
| Population Exposed | 78.7K within 50 km |
| Impact Tier | severe |
| Date | 2026-03-15 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.4d16ba97c6ca028aca6390bef612ef62 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | St. Clair, IL; De Witt, IL; Logan, IL; Macon, IL; Clinton, IL; Washington, IL and 3 more areas |
| Headline | Tornado Warning issued March 15 at 6:01PM CDT until March 15 at 6:15PM CDT by NWS St Louis MO |
| Expires | 2026-03-15T18:15:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4d16ba97c6ca028aca6390bef612ef62c99aea9d.002.1","noaa_urn:oid:2.49.0.1.840.0.ae5f5128b70efcf451239b6db8c30af78ca97f15.001.1","noaa_urn:oid:2.49.0.1.840.0.a95a0969ec539eb2cea5c1ed646594b36e9aa84c.001.1","noaa_urn:oid:2.49.0.1.840.0.4c3dc929e8e0cdf57e656585688c3feb6d233d47.002.1","noaa_urn:oid:2.49.0.1.840.0.6011b8c4396caff4d93795e10f41cf20c59e09e1.001.1","noaa_urn:oid:2.49.0.1.840.0.f0a513ea1996b3e1ee200e311d2fe5ca7b4a3195.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 100 |
| Spc Location | Wood River |
| Spc County | Madison |
| Spc State | IL |
| Spc Comments | Quarter-size hail in Wood River... reported by Madison County SKYWARN. (LSX) |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | Wood River |
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 63/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.