This alert expired on 23 May 2026 at 18:15 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 26 April 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 23 at 12:47PM CDT until May 23 at 1:15PM CDT by NWS Jackson MS
An estimated 15,128 people live within 50 km of this point.
Nearby, since 26 April 2026
- July 1, 2026 · score 34 · 6.4 km
- May 9, 2026 · score 22 · 18.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 84 % 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 | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 84% |
| Coordinates | 31.8750, -91.3717 |
| Nearest City | Natchez (35 km) |
| Population Exposed | 15.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T17:47:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.77f72fdd3d814ba0df30c1a657021c4efba24414.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Franklin, LA; Tensas, LA; Adams, MS; Claiborne, MS; Franklin, MS; Jefferson, MS |
| Headline | Severe Thunderstorm Warning issued May 23 at 12:47PM CDT until May 23 at 1:15PM CDT by NWS Jackson MS |
| Expires | 2026-05-23T13:15:00-05:00 |
| SenderName | NWS Jackson MS |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 75 |
| Iem Unit | MPH |
| Iem City | 3 SSW Jonesville |
| Iem County | Catahoula |
| Iem State | LA |
| Iem Wfo | JAN |
| Iem Remark | Peak gust of 74.5 mph at the Jonesville LA State mesonet site. |
| MergedSources | [{"id":"iem_G_31.590_-91.860_1779555300000","source":"iem","severity":"low","severityValue":25,"timestamp":1779555300000,"latitude":31.59,"longitude":-91.86}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.