This alert expired on 12 August 2026 at 06:00 UTC. It is kept here as a record.
It is the 16th 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. 24 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued August 11 at 7:06PM EDT until August 12 at 2:00AM EDT by NWS Blacksburg VA
An estimated 198,761 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 29, 2026 · score 43 · 0.0 km
- July 28, 2026 · score 43 · 0.0 km
- July 21, 2026 · score 37 · 0.0 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 88 % 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) | 43 / 100 |
| Our confidence | 88% |
| Coordinates | 35.6000, -79.8000 |
| Nearest City | Asheboro (12 km) |
| Population Exposed | 198.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T23:06:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Alleghany, NC; Ashe, NC; Stokes, NC; Surry, NC; Watauga, NC; Wilkes, NC; Yadkin, NC; Bland, VA; Carroll, VA; Craig, VA; Floyd, VA; Franklin, VA; Giles, VA; Grayson, VA; Montgomery, VA; Patrick, VA; Pulaski, VA; Roanoke, VA; Smyth, VA; Tazewell, VA; Wythe, VA; City of Galax, VA; City of Radford, VA; City of Roanoke, VA; City of Salem, VA |
| Headline | Severe Thunderstorm Watch issued August 11 at 7:06PM EDT until August 12 at 2:00AM EDT by NWS Blacksburg VA |
| Expires | 2026-08-12T02:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | false |
| Iem TypeSummary | D |
| Iem City | Pinebluff |
| Iem County | Moore |
| Iem State | NC |
| Iem Wfo | RAH |
| Iem Remark | A tree was blown down onto power lines near the intersection of S Walnut St. and E Boston Ave in Pinebluff. Time estimated by radar. |
| MergedSources | [{"id":"iem_H_35.190_-80.220_1786484700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786484700000,"latitude":35.19,"longitude":-80.22},{"id":"iem_D_35.730_-80.290_1786483200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786483200000,"latitude":35.73,"longitude":-80.29},{"id":"iem_F_35.270_-80.440_1786487880000","source":"iem","severity":"low","severityValue":25,"timestamp":1786487880000,"latitude":35.27,"longitude":-80.44},{"id":"iem_D_35.110_-79.470_1786489920000","source":"iem","severity":"low","severityValue":25,"timestamp":1786489920000,"latitude":35.11,"longitude":-79.47}] |
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 43/100, near Asheboro (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.