This alert expired on 28 August 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 12 March 2026 — 8 others scored the same. The last comparable one was on 13 August 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 28 at 6:05PM EDT until August 28 at 6:45PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,204,425 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 13, 2026 · score 52 · 10.6 km
- March 12, 2026 · score 52 · 10.6 km
- June 18, 2026 · score 52 · 10.8 km
How we know
Confirmed by 9 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 89 % 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 | 89% |
| Coordinates | 35.1256, -80.3881 |
| Nearest City | Monroe (21 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-28T22:05:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Chester, SC; York, SC; Anson, NC; Davidson, NC; Montgomery, NC; Moore, NC; Randolph, NC; Richmond, NC; Stanly, NC; Union, NC and 1 more areas |
| Headline | Severe Thunderstorm Warning issued August 28 at 6:05PM EDT until August 28 at 6:45PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-08-28T18:45:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cda29f92e74259ff466c7570d3a4912ac7e6a447.001.1","noaa_urn:oid:2.49.0.1.840.0.097ef08e0799a97487f6ee8aab7ce860afd8149b.001.1","noaa_urn:oid:2.49.0.1.840.0.b122b37e5f6d710d1a87de43947db3519eabc452.001.1","noaa_urn:oid:2.49.0.1.840.0.a771e5793f0fcff89635944159e186ad58806ee2.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 NNW Gold Hill |
| Spc County | Rowan |
| Spc State | NC |
| Spc Comments | Trees down in multiple locations along St. Peters Church Road. (GSP) |
| MergedSources | [{"id":"spc_wind_35.57_-80.83_17","source":"spc","severity":"medium","severityValue":45,"timestamp":1787948700000,"latitude":35.57,"longitude":-80.83},{"id":"spc_wind_35.54_-80.83_19","source":"spc","severity":"medium","severityValue":45,"timestamp":1787949000000,"latitude":35.54,"longitude":-80.83},{"id":"spc_wind_35.62_-80.87_20","source":"spc","severity":"medium","severityValue":45,"timestamp":1787949000000,"latitude":35.62,"longitude":-80.87},{"id":"spc_wind_35.52_-80.78_21","source":"spc","severity":"medium","severityValue":45,"timestamp":1787949660000,"latitude":35.52,"longitude":-80.78},{"id":"spc_wind_35.50_-80.72_22","source":"spc","severity":"medium","severityValue":45,"timestamp":1787949960000,"latitude":35.5,"longitude":-80.72},{"id":"spc_wind_35.56_-80.45_25","source":"spc","severity":"medium","severityValue":45,"timestamp":1787950560000,"latitude":35.56,"longitude":-80.45},{"id":"spc_wind_35.59_-80.39_26","source":"spc","severity":"medium","severityValue":45,"timestamp":1787950560000,"latitude":35.59,"longitude":-80.39},{"id":"spc_wind_35.55_-80.35_27","source":"spc","severity":"medium","severityValue":45,"timestamp":1787951220000,"latitude":35.55,"longitude":-80.35}] |
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 Monroe (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.