Right now
The most recent data we hold from NOAA arrived 2 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 16 March 2026 at 01:45 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 16 March 2026 — one other scored the same.
What the source measured
NOAA reported: Tornado Warning issued March 15 at 8:19PM CDT until March 15 at 8:45PM CDT by NWS Memphis TN
An estimated 66,975 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 16, 2026 · score 63 · 6.9 km
- June 1, 2026 · score 39 · 15.8 km
- July 3, 2026 · score 39 · 18.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 63 out of 100, at 82 % 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 | 82% |
| Coordinates | 35.7797, -88.6111 |
| Nearest City | Jackson (26 km) |
| Population Exposed | 67.0K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-16T01:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.db60a3d57aae7128803fe6f97e0a29bd |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alcorn, MS; McNairy, TN; Graves, KY; Hickman, KY |
| Headline | Tornado Warning issued March 15 at 8:19PM 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 |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.db60a3d57aae7128803fe6f97e0a29bde7f2e70d.002.1","noaa_urn:oid:2.49.0.1.840.0.1aab18c07773256ac1d633e69e6e8e902d586289.001.1"] |
| Iem TypeSummary | O |
| Iem City | 2 SW Linden |
| Iem County | Perry |
| Iem State | TN |
| Iem Wfo | OHX |
| Iem Remark | Fallen powerline caused a brush fire on Airport Road. |
| MergedSources | [{"id":"iem_O_35.600_-87.870_1773602340000","source":"iem","severity":"low","severityValue":25,"timestamp":1773602340000,"latitude":35.6,"longitude":-87.87}] |
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.
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