Right now
The most recent data we hold from NOAA arrived 21 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 22 July 2026 at 17:00 UTC. It is kept here as a record.
No stronger detection stands among the 40 recorded within 20 km of this point since 30 April 2026 — 2 others scored the same. 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: Tornado Warning issued July 22 at 12:41PM EDT until July 22 at 1:00PM EDT by NWS Blacksburg VA
Urban PEI: 42,082 within a heuristic 50 km radius; not unique people.
Nearby, since 30 April 2026
- July 22, 2026 · score 58 · 0.0 km
- August 5, 2026 · score 34 · 12.9 km
- July 22, 2026 · score 34 · 14.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 58 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 58 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 36.6100, -78.9100 |
| Nearest City | Danville (44 km) |
| Urban exposure index (PEI) | 42.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T16:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.32317cc433109cee7c03924632506cf649b08c5f.002.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-22T16:41:00.000Z.
First archived: 2026-07-22T16:48:48.614Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Halifax, VA |
| Headline | Tornado Warning issued July 22 at 12:41PM EDT until July 22 at 1:00PM EDT by NWS Blacksburg VA |
| Expires | 2026-07-22T13:00:00-04:00 |
| SenderName | NWS Blacksburg VA |
| HasExactCoords | true |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens in this area?