This alert expired on 16 March 2026 at 14:45 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 16 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 16 at 10:33AM EDT until March 16 at 10:45AM EDT by NWS Blacksburg VA
An estimated 565,774 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 20, 2026 · score 41 · 8.0 km
- June 18, 2026 · score 48 · 9.5 km
- July 19, 2026 · score 43 · 11.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 out of 100, at 78 % 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 | Critical |
| Calamity Score (ours) | 72 / 100 |
| Our confidence | 78% |
| Coordinates | 36.4281, -80.0010 |
| Nearest City | Eden (22 km) |
| Population Exposed | 565.8K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-03-16T14:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.0a675f92d1e63d6b8771263a67297480 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Henry, VA; City of Martinsville, VA; Davidson, NC; Forsyth, NC; Guilford, NC |
| Headline | Tornado Warning issued March 16 at 10:33AM EDT until March 16 at 10:45AM EDT by NWS Blacksburg VA |
| Expires | 2026-03-16T10:45:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0a675f92d1e63d6b8771263a67297480fa9d628f.002.1","noaa_urn:oid:2.49.0.1.840.0.ac14cc0e39192e95eda0ba3b44563629f52619f0.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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 Eden?
Calamity.live data shows a weather event with CalamityScore 72/100, near Eden (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.