This alert expired on 11 August 2026 at 22:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 32 detections recorded within 20 km of this point since 5 July 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 11 at 5:08PM EDT until August 11 at 6:00PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,189,443 people live within 50 km of this point.
Nearby, since 5 July 2026
- August 11, 2026 · score 52 · 6.0 km
- July 5, 2026 · score 52 · 12.2 km
- August 29, 2026 · score 43 · 21.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 35.5102, -81.1778 |
| Nearest City | Gastonia (28 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T21:08:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Burke, NC; Caldwell, NC; McDowell, NC; Rutherford, NC; Davidson, NC and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 11 at 5:08PM EDT until August 11 at 6:00PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-08-11T18:00:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.504aac199d4145e7a9cf5650efbca20adf1492b5.001.1","noaa_urn:oid:2.49.0.1.840.0.e868c76f7669451effc66792379c5f962f75bfd9.001.1","noaa_urn:oid:2.49.0.1.840.0.484d2f2631ad2a3de62b1eb50994ef25a94a4021.001.1","noaa_urn:oid:2.49.0.1.840.0.774d680065e2ae055d9db4e9bf1441162910f186.002.1","noaa_urn:oid:2.49.0.1.840.0.862a0d046a6c33735f3242fb722e3472a216d997.001.1","noaa_urn:oid:2.49.0.1.840.0.d6dbce55ab90e61ba0e4b8e14b52020e8b3935a7.001.1","noaa_urn:oid:2.49.0.1.840.0.52244252d0e43448492eb30cc8246beeffec0991.001.1"] |
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 52/100, near Gastonia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.