This alert expired on 11 July 2026 at 20:00 UTC. It is kept here as a record.
It is the 4th strongest of the 21 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 11 at 3:21PM EDT until July 11 at 4:00PM EDT by NWS Wilmington NC
Nearby, since 12 March 2026
- August 10, 2026 · score 43 · 5.9 km
- March 12, 2026 · score 43 · 6.9 km
- July 12, 2026 · score 22 · 7.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 33.5564, -80.8977 |
| Nearest City | West Columbia (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-11T19:21:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Florence, SC; Georgetown, SC; Horry, SC; Marion, SC; Williamsburg, SC; Aiken, SC; Bamberg, SC; Barnwell, SC; Calhoun, SC; Lexington, SC; Orangeburg, SC; Richmond, GA; Aiken, SC; Bamberg, SC; Barnwell, SC and 2 more areas |
| Headline | Severe Thunderstorm Warning issued July 11 at 3:21PM EDT until July 11 at 4:00PM EDT by NWS Wilmington NC |
| Expires | 2026-07-11T16:00:00-04:00 |
| SenderName | NWS Wilmington NC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a9ad8e06fac2455521519a33b8d28db3d730374b.001.1","noaa_urn:oid:2.49.0.1.840.0.6c4868254fd0b5b0a896133962043efb288e66b7.001.1","noaa_urn:oid:2.49.0.1.840.0.94607c22f71b488f55b92e020ed31bfd65a4786f.001.1","noaa_urn:oid:2.49.0.1.840.0.6c05c84d1140eb6e33fdb2475854fa256a452c4c.001.1","noaa_urn:oid:2.49.0.1.840.0.7b8a8edae69d1aba988c218ee70202e29cfe25cb.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 22/100, near West Columbia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.