Calamity
HighSevere WeatherCalamity Score: 46

Severe Weather in United States

LeakeUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 9 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 04:00 UTC. It is kept here as a record.

No stronger detection stands among the 62 recorded within 20 km of this point since 9 March 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Watch issued March 15 at 9:40PM CDT until March 15 at 11:00PM CDT by NWS Memphis TN

An estimated 25,799 people live within 50 km of this point.

Nearby, since 9 March 2026

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 77 % 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
SeverityHigh
Calamity Score (ours)46 / 100
Our confidence77%
Coordinates32.7000, -89.7000
Nearest CityMadison (48 km)
Population Exposed25.8K within 50 km
Impact Tiersignificant
Timestamp2026-03-16T02:40:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.1c76b318cc6b2c416e91a284ccf3b627

Score Breakdown

65
intensity
40
population
0
cascading
80
historical

Technical Details

EventTornado Watch
UrgencyFuture
CertaintyPossible
AreaDescAlcorn, MS; Benton, MS; Calhoun, MS; Chickasaw, MS; Itawamba, MS; Lafayette, MS; Lee, MS; Monroe, MS; Pontotoc, MS; Prentiss, MS; Tippah, MS; Tishomingo, MS; Union, MS; Yalobusha, MS; Benton, TN; Carroll, TN; Chester, TN; Decatur, TN; Hardeman, TN; Hardin, TN; Henderson, TN; Henry, TN; McNairy, TN; Madison, TN; Adams, MS; Claiborne, MS; Clarke, MS; Copiah, MS; Covington, MS; Forrest, MS; Franklin, MS; Hinds, MS; Jasper, MS; Jefferson, MS; Jefferson Davis, MS; Jones, MS; Kemper, MS; Lamar, MS; Lauderdale, MS; Lawrence, MS; Leake, MS; Lincoln, MS; Lowndes, MS; Madison, MS; Marion, MS; Neshoba, MS; Newton, MS; Noxubee, MS; Rankin, MS; Scott, MS; Simpson, MS; Smith, MS; Warren, MS; Winston, MS
HeadlineTornado Watch issued March 15 at 9:40PM CDT until March 15 at 11:00PM CDT by NWS Memphis TN
Expires2026-03-15T23:00:00-05:00
SenderNameNWS Memphis TN
HasExactCoordsfalse
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.1c76b318cc6b2c416e91a284ccf3b627cd726983.002.1","noaa_urn:oid:2.49.0.1.840.0.f3fe6f8b22a1bf8c570a1df94085a47c6c5cdba2.005.1"]

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.

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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.