This alert expired on 2 July 2026 at 21:30 UTC. It is kept here as a record.
It is the 6th strongest of the 24 detections recorded within 20 km of this point since 16 March 2026. 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 July 2 at 3:55PM CDT until July 2 at 4:30PM CDT by NWS Memphis TN
An estimated 160,853 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 22, 2026 · score 43 · 5.4 km
- August 8, 2026 · score 39 · 15.6 km
- August 8, 2026 · score 39 · 19.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 78 % 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) | 43 / 100 |
| Our confidence | 78% |
| Coordinates | 35.7600, -87.2637 |
| Nearest City | Columbia (26 km) |
| Population Exposed | 160.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T20:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d4969b8702ffa8b109b03c79369c5fa1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chester, TN; Decatur, TN; Hardin, TN; Henderson, TN; McNairy, TN; Hickman, TN; Davidson, TN; Williamson, TN and 1 more areas |
| Headline | Severe Thunderstorm Warning issued July 2 at 3:55PM CDT until July 2 at 4:30PM CDT by NWS Memphis TN |
| Expires | 2026-07-02T16:30:00-05:00 |
| SenderName | NWS Memphis TN |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d4969b8702ffa8b109b03c79369c5fa1f809d0b9.001.1","noaa_urn:oid:2.49.0.1.840.0.585e3212b70d132b198db2a5849b389ad1f7345f.001.1","noaa_urn:oid:2.49.0.1.840.0.702da6c46db269b92a53368ac26341363671ebf1.001.1","noaa_urn:oid:2.49.0.1.840.0.f48e5a90b0cdf3ed35d5ccfb266d9be19f857718.001.1"] |
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 Columbia?
Calamity.live data shows a weather event with CalamityScore 43/100, near Columbia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.