This alert expired on 16 March 2026 at 00:15 UTC. It is kept here as a record.
It is the strongest of the 15 detections recorded within 20 km of this point since 15 March 2026.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 6:23PM CDT until March 15 at 7:15PM CDT by NWS Memphis TN
An estimated 26,399 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 16, 2026 · score 34 · 11.1 km
- June 26, 2026 · score 34 · 12.7 km
- June 8, 2026 · score 34 · 16.5 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 58 out of 100, at 88 % 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) | 58 / 100 |
| Our confidence | 88% |
| Coordinates | 37.9318, -89.6034 |
| Nearest City | Carbondale (40 km) |
| Population Exposed | 26.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T23:23:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.58393833250156248fbb0d3f723466e4 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Craighead, AR; Greene, AR; Mississippi, AR; Dunklin, MO; Pemiscot, MO; Cape Girardeau, MO; Perry, MO; Clay, AR; Greene, AR; Dunklin, MO and 5 more areas |
| Headline | Tornado Warning issued March 15 at 6:23PM CDT until March 15 at 7:15PM CDT by NWS Memphis TN |
| Expires | 2026-03-15T19:15:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.58393833250156248fbb0d3f723466e4f1a00e96.001.1","noaa_urn:oid:2.49.0.1.840.0.44cd7380a87b7718ae48f8132b79220f551c4b57.001.1","noaa_urn:oid:2.49.0.1.840.0.02836f5248dc04fa27a38980fc9102656cf97212.002.1","noaa_urn:oid:2.49.0.1.840.0.2558f5da9164901623fe094f22276b53a4d51386.001.1","noaa_urn:oid:2.49.0.1.840.0.f840caf9fb555408ba518272380921fc82e6fd7c.001.1","noaa_urn:oid:2.49.0.1.840.0.c1f3cf50cc78ea9e73c5cd7bfe159fa09ba700a9.001.1","noaa_urn:oid:2.49.0.1.840.0.88e31b0a2a8ed23e24844a5d3da230ae42a5362c.001.1","noaa_urn:oid:2.49.0.1.840.0.c40d763a14878dc8dfabc0efb0784e9a6a0f0604.002.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 4 ENE Leadington |
| Spc County | Ste. Genevieve |
| Spc State | MO |
| Spc Comments | Tree debris is blocking a part of Hwy D just north of Hwy O. Time of damage estimated from radar. (LSX) |
| Iem TypeSummary | O |
| Iem City | Benton |
| Iem County | Franklin |
| Iem State | IL |
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.
Calamity.live data shows a weather event with CalamityScore 58/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.