This alert expired on 11 August 2026 at 22:00 UTC. It is kept here as a record.
It is the 4th strongest of the 63 detections recorded within 20 km of this point since 16 March 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 5:25PM EDT until August 11 at 6:00PM EDT by NWS Greenville-Spartanburg SC
An estimated 1,224,023 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 11, 2026 · score 52 · 6.0 km
- July 5, 2026 · score 52 · 16.0 km
- August 29, 2026 · score 43 · 16.4 km
How we know
Confirmed by 23 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 91 % 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 | 91% |
| Coordinates | 35.5374, -81.2344 |
| Nearest City | Hickory (23 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T21:25:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cabarrus, NC; Mecklenburg, NC; Union, NC; Cleveland, NC; Gaston, NC; Lincoln, NC; Cleveland, NC; Polk, NC; Rutherford, NC and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 11 at 5:25PM 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:2.49.0.1.840.0.46188e4a54dfaea8f8e2aa7f3b370e8bdb8b9552.001.1","noaa_urn:oid:2.49.0.1.840.0.79b0488cb01e0755687711f1c547fed05247d33d.002.1","noaa_urn:oid:2.49.0.1.840.0.58e2fcb9d920ed808e9e571b67a147b1cd0d54a6.001.1","noaa_urn:oid:2.49.0.1.840.0.9299cb98c3320cfd6078bc82dde65f636eaf97f9.001.1","noaa_urn:oid:2.49.0.1.840.0.98febf8a3dd591708c13ba8a560c0f64a4084159.001.1","noaa_urn:oid:2.49.0.1.840.0.582df58c74dba7fcaf001c9e283c7ad479236c09.001.1","noaa_urn:oid:2.49.0.1.840.0.504aac199d4145e7a9cf5650efbca20adf1492b5.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 NW Wilkesboro |
| Iem County | Wilkes |
| Iem State | NC |
| Iem Wfo | RNK |
| Iem Remark | Tree down on Brookwood Drive. |
| MergedSources | [{"id":"iem_H_35.960_-81.540_1786474200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786474200000,"latitude":35.96,"longitude":-81.54},{"id":"iem_F_36.160_-81.140_1786481700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481700000,"latitude":36.16,"longitude":-81.14},{"id":"iem_D_36.160_-81.160_1786478940000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478940000,"latitude":36.16,"longitude":-81.16},{"id":"iem_D_35.730_-81.860_1786478100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478100000,"latitude":35.73,"longitude":-81.86},{"id":"iem_D_36.140_-81.120_1786478880000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478880000,"latitude":36.14,"longitude":-81.12},{"id":"iem_D_36.040_-80.890_1786482060000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482060000,"latitude":36.04,"longitude":-80.89},{"id":"iem_D_36.160_-81.170_1786479000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786479000000,"latitude":36.16,"longitude":-81.17},{"id":"iem_D_35.700_-82.030_1786480980000","source":"iem","severity":"low","severityValue":25,"timestamp":1786480980000,"latitude":35.7,"longitude":-82.03},{"id":"iem_D_35.680_-81.990_1786481340000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481340000,"latitude":35.68,"longitude":-81.99},{"id":"iem_D_35.960_-80.780_1786482900000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482900000,"latitude":35.96,"longitude":-80.78},{"id":"iem_D_35.740_-81.880_1786478100000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478100000,"latitude":35.74,"longitude":-81.88},{"id":"iem_D_36.010_-80.800_1786482420000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482420000,"latitude":36.01,"longitude":-80.8},{"id":"iem_H_35.680_-82.010_1786481400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481400000,"latitude":35.68,"longitude":-82.01},{"id":"iem_H_35.650_-81.970_1786481880000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481880000,"latitude":35.65,"longitude":-81.97},{"id":"iem_D_35.950_-80.800_1786482900000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482900000,"latitude":35.95,"longitude":-80.8},{"id":"iem_D_35.970_-81.580_1786473600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473600000,"latitude":35.97,"longitude":-81.58},{"id":"iem_D_36.030_-80.810_1786482900000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482900000,"latitude":36.03,"longitude":-80.81},{"id":"iem_H_35.970_-81.570_1786473600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786473600000,"latitude":35.97,"longitude":-81.57},{"id":"iem_D_35.620_-81.990_1786482720000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482720000,"latitude":35.62,"longitude":-81.99},{"id":"iem_D_36.010_-80.880_1786481040000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481040000,"latitude":36.01,"longitude":-80.88},{"id":"iem_D_35.940_-80.810_1786482000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482000000,"latitude":35.94,"longitude":-80.81},{"id":"iem_D_36.150_-81.170_1786478700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786478700000,"latitude":36.15,"longitude":-81.17}] |
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 Hickory (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.