This alert expired on 22 July 2026 at 02:00 UTC. It is kept here as a record.
It is the 113th strongest of the 154 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued July 21 at 4:05PM EDT until July 21 at 10:00PM EDT by NWS Blacksburg VA
An estimated 198,761 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 11, 2026 · score 43 · 0.0 km
- July 29, 2026 · score 43 · 0.0 km
- July 28, 2026 · score 43 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Our confidence | 80% |
| Coordinates | 35.6000, -79.8000 |
| Nearest City | Asheboro (12 km) |
| Population Exposed | 198.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T20:05:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Caswell, NC; Rockingham, NC; Stokes, NC; Surry, NC; Wilkes, NC; Yadkin, NC; Alleghany, VA; Amherst, VA; Appomattox, VA; Bath, VA; Bedford, VA; Botetourt, VA; Buckingham, VA; Campbell, VA; Charlotte, VA; Craig, VA; Floyd, VA; Franklin, VA; Halifax, VA; Henry, VA; Montgomery, VA; Patrick, VA; Pittsylvania, VA; Roanoke, VA; Rockbridge, VA; City of Buena Vista, VA; City of Covington, VA; City of Danville, VA; City of Lexington, VA; City of Lynchburg, VA; City of Martinsville, VA; City of Roanoke, VA; City of Salem, VA; Greenbrier, WV |
| Headline | Severe Thunderstorm Watch issued July 21 at 4:05PM EDT until July 21 at 10:00PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-21T22:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | false |
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 37/100, near Asheboro (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.