This alert expired on 18 July 2026 at 22:30 UTC. It is kept here as a record.
No stronger detection stands among the 33 recorded within 20 km of this point since 26 May 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 18 at 6:21PM EDT until July 18 at 6:30PM EDT by NWS Blacksburg VA
An estimated 15,271 people live within 50 km of this point.
Nearby, since 26 May 2026
- June 10, 2026 · score 34 · 9.2 km
- June 18, 2026 · score 34 · 14.5 km
- May 28, 2026 · score 34 · 14.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Our confidence | 79% |
| Coordinates | 36.6804, -78.5586 |
| Nearest City | Henderson (41 km) |
| Population Exposed | 15.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T22:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d60c4be8e1be69bdc70aa13712c3da3f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Charlotte, VA; Halifax, VA; Lunenburg, VA; Mecklenburg, VA |
| Headline | Severe Thunderstorm Warning issued July 18 at 6:21PM EDT until July 18 at 6:30PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-18T18:30:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d60c4be8e1be69bdc70aa13712c3da3ff6062683.001.1","noaa_urn:oid:2.49.0.1.840.0.6688a82b9116365d2575948ca9d9afa5f3731890.001.1"] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.