This alert expired on 11 July 2026 at 21:45 UTC. It is kept here as a record.
It is the 23rd strongest of the 105 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 13 June 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 11 at 4:00PM CDT until July 11 at 4:45PM CDT by NWS Memphis TN
An estimated 825,584 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 16, 2026 · score 52 · 12.5 km
- March 15, 2026 · score 43 · 16.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 80% |
| Coordinates | 35.5069, -89.8100 |
| Nearest City | Ellendale (31 km) |
| Population Exposed | 825.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-11T21:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.9a8a95097c79a5314bba1563cde7cce5d2895a09.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Crittenden, AR; Mississippi, AR; Lauderdale, TN; Shelby, TN; Tipton, TN |
| Headline | Severe Thunderstorm Warning issued July 11 at 4:00PM CDT until July 11 at 4:45PM CDT by NWS Memphis TN |
| Expires | 2026-07-11T16:45:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.