This alert expired on 11 May 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 22 recorded within 20 km of this point since 16 March 2026 — 18 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 10 at 10:49PM CDT until May 10 at 11:15PM CDT by NWS Jackson MS
An estimated 15,431 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 10, 2026 · score 22 · 20.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 91 % 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 | 91% |
| Coordinates | 33.3740, -89.7380 |
| Nearest City | Greenwood (44 km) |
| Population Exposed | 15.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T03:49:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a4073a190d22ce05c9e182283f78b89936d7c2d9.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Attala, MS; Carroll, MS; Choctaw, MS; Holmes, MS; Montgomery, MS; Webster, MS |
| Headline | Severe Thunderstorm Warning issued May 10 at 10:49PM CDT until May 10 at 11:15PM CDT by NWS Jackson MS |
| Expires | 2026-05-10T23:15:00-05:00 |
| SenderName | NWS Jackson MS |
| HasExactCoords | true |
| Iem TypeSummary | H |
| Iem Magnitude | 1.75 |
| Iem Unit | Inch |
| Iem City | 1 NE Mccool |
| Iem County | Attala |
| Iem State | MS |
| Iem Wfo | JAN |
| Iem Remark | Relayed via social media. |
| MergedSources | [{"id":"iem_H_33.220_-89.370_1778450940000","source":"iem","severity":"low","severityValue":25,"timestamp":1778450940000,"latitude":33.22,"longitude":-89.37},{"id":"iem_H_33.210_-89.330_1778451420000","source":"iem","severity":"low","severityValue":25,"timestamp":1778451420000,"latitude":33.21,"longitude":-89.33}] |
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.