This alert expired on 7 July 2026 at 03:15 UTC. It is kept here as a record.
No stronger detection stands among the 19 recorded within 20 km of this point since 12 March 2026 — 6 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 6 at 10:57PM EDT until July 6 at 11:15PM EDT by NWS Columbia SC
An estimated 79,044 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 7, 2026 · score 39 · 12.7 km
- August 3, 2026 · score 34 · 13.6 km
- June 18, 2026 · score 22 · 14.2 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 34.3544, -80.2128 |
| Nearest City | Florence (45 km) |
| Population Exposed | 79.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-07T02:57:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chesterfield, SC; Kershaw, SC; Lee, SC; Darlington, SC |
| Headline | Severe Thunderstorm Warning issued July 6 at 10:57PM EDT until July 6 at 11:15PM EDT by NWS Columbia SC |
| Expires | 2026-07-06T23:15:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fe0fd7b368fa0668e8e8d75c0355c00b77507d24.002.1","noaa_urn:oid:2.49.0.1.840.0.150ca6af34493377c63defcffb09584a6e27c051.001.1"] |
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 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 39/100, near Florence (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.