This alert expired on 11 July 2026 at 20:30 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 16 March 2026 — 34 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 July 11 at 3:20PM CDT until July 11 at 3:30PM CDT by NWS Memphis TN
An estimated 66,975 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 30, 2026 · score 39 · 5.3 km
- July 20, 2026 · score 39 · 14.1 km
- June 13, 2026 · score 39 · 16.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 80 % 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 35.6921, -88.9713 |
| Nearest City | Jackson (17 km) |
| Population Exposed | 67.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-11T20:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0db17f0e67c5d6582a29a6e4fb3f549d |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Carroll, TN; Gibson, TN; Madison, TN; Hickman, TN; Lewis, TN; Perry, TN; Craighead, AR; Crittenden, AR; Mississippi, AR; Poinsett, AR |
| Headline | Severe Thunderstorm Warning issued July 11 at 3:20PM CDT until July 11 at 3:30PM CDT by NWS Memphis TN |
| Expires | 2026-07-11T15:30:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0db17f0e67c5d6582a29a6e4fb3f549d491918b8.001.1","noaa_urn:oid:2.49.0.1.840.0.36fd5c87d406366b387ec923519c2f9e81d2ec7b.001.1","noaa_urn:oid:2.49.0.1.840.0.528938bf2ed20ecd165cd1884a72437b18db6ebe.001.1"] |
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 near Jackson?
Calamity.live data shows a weather event with CalamityScore 39/100, near Jackson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.