This alert expired on 16 March 2026 at 01:45 UTC. It is kept here as a record.
No stronger detection stands among the 102 recorded within 20 km of this point since 9 March 2026 — 3 others scored the same. The last comparable one was on 10 March 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 7:58PM CDT until March 15 at 8:45PM CDT by NWS Memphis TN
Nearby, since 9 March 2026
- March 16, 2026 · score 46 · 2.0 km
- March 10, 2026 · score 22 · 24.6 km
- March 9, 2026 · score 22 · 25.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 58 % 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) | 46 / 100 |
| Our confidence | 58% |
| Coordinates | 34.8756, -88.6200 |
| Nearest City | Tupelo (69 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T00:58:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e77239c9ac9d3588abe8a88048456d3940404f3c.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alcorn, MS; Tippah, MS; McNairy, TN |
| Headline | Tornado Warning issued March 15 at 7:58PM CDT until March 15 at 8:45PM CDT by NWS Memphis TN |
| Expires | 2026-03-15T20:45:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.