Reported by SPC 168 days ago.
No stronger detection stands among the 20 recorded within 20 km of this point since 16 March 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near 1 WNW Lake Wateree Dam, Kershaw, SC. Broadcast Media shared a photo showing tree blown down... knocking power lines down with it. Time estimated from source and radar. (CAE)
An estimated 163,567 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 25, 2026 · score 22 · 19.5 km
- July 14, 2026 · score 43 · 20.4 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 73 % 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) | 43 / 100 |
| Our confidence | 73% |
| Coordinates | 34.3400, -80.7200 |
| Nearest City | Columbia (47 km) |
| Population Exposed | 163.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T12:11:09.159Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 WNW Lake Wateree Dam |
| County | Kershaw |
| State | SC |
| Comments | Broadcast Media shared a photo showing tree blown down... knocking power lines down with it. Time estimated from source and radar. (CAE) |
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.
Want to know when something happens near Columbia?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.