This alert expired on 12 March 2026 at 14:30 UTC. It is kept here as a record.
No stronger detection stands among the 23 recorded within 20 km of this point since 12 March 2026 — 5 others scored the same.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 12 at 10:18AM EDT until March 12 at 10:30AM EDT by NWS Columbia SC
An estimated 142,416 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 12, 2026 · score 22 · 6.1 km
- July 11, 2026 · score 22 · 6.9 km
- August 10, 2026 · score 43 · 8.9 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 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 33.5827, -80.8299 |
| Nearest City | Columbia (50 km) |
| Population Exposed | 142.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T14:18:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Aiken, SC; Bamberg, SC; Barnwell, SC; Calhoun, SC; Fairfield, SC; Kershaw, SC; Lancaster, SC; Lexington, SC; Orangeburg, SC; Richland, SC; Bamberg, SC; Calhoun, SC; Clarendon, SC; Orangeburg, SC |
| Headline | Severe Thunderstorm Warning issued March 12 at 10:18AM EDT until March 12 at 10:30AM EDT by NWS Columbia SC |
| Expires | 2026-03-12T10:30:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a575efc32c1020f0be94bbc586dd694a34d2eb9b.001.1","noaa_urn:oid:2.49.0.1.840.0.5a3cfb7094815f2f8ce2449b1977b52a4cac61f4.001.1"] |
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 43/100, near Columbia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.