Calamity
CriticalSevere WeatherCalamity Score: 46

Severe Weather in United States

AlcornUnited StatesNOAA

This alert expired on 16 March 2026 at 01:46 UTC. It is kept here as a record.

No stronger detection stands among the 84 recorded within 20 km of this point since 9 March 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 81 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Warning issued March 15 at 8:36PM CDT until March 15 at 8:45PM CDT by NWS Memphis TN

Nearby, since 9 March 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 46 out of 100, at 62 % 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

TypeSevere Weather
SeverityCritical
Calamity Score (ours)46 / 100
Our confidence62%
Coordinates34.9714, -88.5243
Nearest CityJackson (76 km)
Impact Tierminor
Timestamp2026-03-16T01:36:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.da7c4672527627b0e1736e48556f5e5289a5609a.001.1

Score Breakdown

95
intensity
0
population
0
cascading
80
historical

Technical Details

EventTornado Warning
UrgencyImmediate
CertaintyObserved
AreaDescAlcorn, MS; McNairy, TN
HeadlineTornado Warning issued March 15 at 8:36PM CDT until March 15 at 8:45PM CDT by NWS Memphis TN
Expires2026-03-15T20:46:00-05:00
SenderNameNWS Memphis TN
HasExactCoordstrue
Spc ReportTypehail
Spc Speed100
Spc Location3 ESE Kossuth
Spc CountyAlcorn
Spc StateMS
Spc Comments(MEG)
MergedSources[{"id":"spc_hail_34.86_-88.60_90","source":"spc","severity":"high","severityValue":65,"timestamp":1773624000000,"latitude":34.86,"longitude":-88.6}]

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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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.