This alert expired on 27 May 2026 at 22:15 UTC. It is kept here as a record.
It is the 7th strongest of the 24 detections recorded within 20 km of this point since 13 May 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 6:05PM EDT until May 27 at 6:15PM EDT by NWS Blacksburg VA
Nearby, since 13 May 2026
- June 22, 2026 · score 22 · 9.2 km
- August 28, 2026 · score 28 · 12.6 km
- July 22, 2026 · score 46 · 15.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 59 % 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) | 22 / 100 |
| Our confidence | 59% |
| Coordinates | 37.7657, -80.1964 |
| Nearest City | Salem (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-27T22:05:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a04cbba29c554528b821e3f957da8d053b9156a2.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alleghany, VA |
| Headline | Severe Thunderstorm Warning issued May 27 at 6:05PM EDT until May 27 at 6:15PM EDT by NWS Blacksburg VA |
| Expires | 2026-05-27T18:15:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.