This alert expired on 18 July 2026 at 21:30 UTC. It is kept here as a record.
It is the 32nd strongest of the 156 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 4:59PM EDT until July 18 at 5:30PM EDT by NWS Blacksburg VA
An estimated 284,873 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 18, 2026 · score 43 · 6.0 km
- May 27, 2026 · score 43 · 8.8 km
- May 27, 2026 · score 43 · 10.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 79% |
| Coordinates | 36.2710, -80.4945 |
| Nearest City | Winston-Salem (30 km) |
| Population Exposed | 284.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T20:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.aeacd880319632d90323de6c245c50df |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Yadkin, NC; Stokes, NC; Surry, NC |
| Headline | Severe Thunderstorm Warning issued July 18 at 4:59PM EDT until July 18 at 5:30PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-18T17:30:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aeacd880319632d90323de6c245c50dff9c2a52e.001.1","noaa_urn:oid:2.49.0.1.840.0.ff848ddc2d78cd64292fd933fe911cc599e7fd1c.001.1"] |
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 8 March 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 Winston-Salem?
Calamity.live data shows a weather event with CalamityScore 43/100, near Winston-Salem (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.