This alert expired on 11 August 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 74 recorded within 20 km of this point since 12 March 2026 — 15 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 11 at 6:00PM EDT until August 11 at 6:45PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,319,238 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 5, 2026 · score 46 · 0.8 km
- May 30, 2026 · score 46 · 14.7 km
- March 13, 2026 · score 52 · 17.0 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % 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 | 90% |
| Coordinates | 35.2350, -80.4116 |
| Nearest City | Mint Hill (23 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T22:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2cdb4f5caabc654b809aa7c55a647bfb |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Greenville, SC; Pickens, SC; Cabarrus, NC; Mecklenburg, NC; Union, NC; Cleveland, NC; Rutherford, NC; Cherokee, SC; Spartanburg, SC and 2 more areas |
| Headline | Severe Thunderstorm Warning issued August 11 at 6:00PM EDT until August 11 at 6:45PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-08-11T18:45:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2cdb4f5caabc654b809aa7c55a647bfbac4dbb96.001.1","noaa_urn:oid:2.49.0.1.840.0.addb44966b4defebff67cc8e29f690d7bcb192c4.001.1","noaa_urn:oid:2.49.0.1.840.0.678aec728e9f1b7087da5117722f0d579d880a91.001.1","noaa_urn:oid:2.49.0.1.840.0.9b12382588f3db1cd09b8f278c181a4b1c65e5d3.001.1","noaa_urn:oid:2.49.0.1.840.0.4adcd28ec8f82d5deb4594c91160fde85274069e.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 6 WSW Norwood |
| Iem County | Stanly |
| Iem State | NC |
| Iem Wfo | RAH |
| Iem Remark | Intersection of Old Davis and Aldridge Rd. |
| MergedSources | [{"id":"iem_D_35.730_-80.290_1786483200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786483200000,"latitude":35.73,"longitude":-80.29},{"id":"iem_H_35.190_-80.220_1786484700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786484700000,"latitude":35.19,"longitude":-80.22}] |
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 Mint Hill?
Calamity.live data shows a weather event with CalamityScore 52/100, near Mint Hill (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.