Right now
The most recent data we hold from NOAA arrived 1 minute 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 21 July 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 23 recorded within 20 km of this point since 28 April 2026 — one other scored the same. The last comparable one was on 7 July 2026.
What the source measured
NOAA reported: Tornado Warning issued July 21 at 6:22PM EDT until July 21 at 6:45PM EDT by NWS Charleston WV
Urban PEI: 16,690 within a heuristic 50 km radius; not unique people.
Nearby, since 28 April 2026
- August 6, 2026 · score 34 · 22.1 km
- August 5, 2026 · score 34 · 22.1 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 | 0.79/1 |
| Coordinates | 37.4050, -84.8235 |
| Nearest City | Danville (28 km) |
| Urban exposure index (PEI) | 16.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T22:22:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.a72266da543807bbefd82efb32e90c31 |
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: 2026-07-21T22:22:00.000Z.
First archived: 2026-07-21T22:23:32.385Z. 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 | Boyd, KY; Lawrence, OH; Cabell, WV; Wayne, WV; Breathitt, KY; Estill, KY; Jackson, KY; Lee, KY; Owsley, KY; Wolfe, KY; Barren, KY; Green, KY; Hart, KY; Metcalfe, KY and 3 more areas |
| Headline | Tornado Warning issued July 21 at 6:22PM EDT until July 21 at 6:45PM EDT by NWS Charleston WV |
| Expires | 2026-07-21T18:45:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a72266da543807bbefd82efb32e90c314d217353.001.1","noaa_urn:oid:2.49.0.1.840.0.527b8cce7b861b6a73e40f0a5a01a974dfc005d1.001.1","noaa_urn:oid:2.49.0.1.840.0.6c65aaedf4c969e9e75928fb7684900ee508ec59.001.1","noaa_urn:oid:2.49.0.1.840.0.4b0d9015d1b91a44c9c7cd3d1551fe0f9a3524dd.001.1","noaa_urn:oid:2.49.0.1.840.0.cdd3df0a0223fc57a67611133645c23b6b5eb196.001.1","noaa_urn:oid:2.49.0.1.840.0.4acba3b09cd9771d41c81aa56994a2dee4a315c9.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near Danville?