This alert expired on 15 March 2026 at 22:30 UTC. It is kept here as a record.
It is the strongest of the 82 detections recorded within 20 km of this point since 15 March 2026.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 5:16PM CDT until March 15 at 5:30PM CDT by NWS Springfield MO
An estimated 18,181 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 10, 2026 · score 34 · 16.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 58 out of 100, at 75 % 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) | 58 / 100 |
| Our confidence | 75% |
| Coordinates | 37.5609, -90.5378 |
| Nearest City | Farmington (26 km) |
| Population Exposed | 18.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T22:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.38f4bc9266a25c317ef3e99a4d691084 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Oregon, MO; Ste. Genevieve, MO; St. Francois, MO; Madison, IL; St. Clair, IL and 1 more areas |
| Headline | Tornado Warning issued March 15 at 5:16PM CDT until March 15 at 5:30PM CDT by NWS Springfield MO |
| Expires | 2026-03-15T17:30:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.38f4bc9266a25c317ef3e99a4d69108484e39a4f.002.1","noaa_urn:oid:2.49.0.1.840.0.b579c27f9cd4fd88c8327fdc8edc3c3b524d4354.001.1","noaa_urn:oid:2.49.0.1.840.0.600db35b8aad8aa240dcc453a6601400395e85a9.001.1","noaa_urn:oid:2.49.0.1.840.0.c1702d007d571d2f6fb8bfa50f15913a891e6f42.001.1"] |
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 near Farmington?
Calamity.live data shows a weather event with CalamityScore 58/100, near Farmington (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.