This alert expired on 27 May 2026 at 22:15 UTC. It is kept here as a record.
No stronger detection stands among the 27 recorded within 20 km of this point since 16 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 5:22PM EDT until May 27 at 6:15PM EDT by NWS Blacksburg VA
Nearby, since 16 March 2026
- July 18, 2026 · score 22 · 8.5 km
- July 3, 2026 · score 22 · 14.6 km
- June 12, 2026 · score 22 · 14.8 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 | 38.1245, -80.0590 |
| Nearest City | Staunton (87 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-27T21:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.825113c34b3d571f1326f5bbd2c18220 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alleghany, VA; Greenbrier, WV; Monroe, WV; Summers, WV; Tucker, WV; Henry, VA; Patrick, VA; City of Martinsville, VA and 3 more areas |
| Headline | Severe Thunderstorm Warning issued May 27 at 5:22PM 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 |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.825113c34b3d571f1326f5bbd2c182200c0201c0.001.1","noaa_urn:oid:2.49.0.1.840.0.f12b8b2cadbc83cf16f3c5099997d9f0e55013f5.001.1","noaa_urn:oid:2.49.0.1.840.0.114a8a76f9d4fb258c77fb33daee5b579a0a1c7f.001.1","noaa_urn:oid:2.49.0.1.840.0.9bc415a730451f3f3ccc64ed4bfd8b1ca327e6c6.001.1","noaa_urn:oid:2.49.0.1.840.0.899e5217134865de703f8606a6cf15771ada6369.001.1","noaa_urn:oid:2.49.0.1.840.0.82b70bdd2126599cb4a97f179e0e1ebbdbe9532a.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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.