Right now
The most recent data we hold from NOAA arrived 2 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
5 other detections within 20 km in the last 24 hours, the nearest 9 km from here.
This alert expired on 2 August 2026 at 00:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 87 detections recorded within 20 km of this point since 28 April 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: Tornado Warning issued August 1 at 7:45PM EDT until August 1 at 8:00PM EDT by NWS Wilmington OH
Urban PEI: 775,782 within a heuristic 50 km radius; not unique people.
Nearby, since 28 April 2026
- August 2, 2026 · score 72 · 2.8 km
- May 19, 2026 · score 48 · 3.4 km
- August 1, 2026 · score 72 · 7.6 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.
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) | 72 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 39.5193, -84.7026 |
| Nearest City | Oxford (4 km) |
| Urban exposure index (PEI) | 775.8K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-08-01T23:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.9890f5b5634a06b9fcf1084f70669209 |
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: 2026-08-01T23:45:00.000Z.
First archived: 2026-08-01T23:54:38.295Z. 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 | Switzerland, IN; Gallatin, KY; Grant, KY; Owen, KY; Darke, OH; Montgomery, OH; Preble, OH; Wayne, IN; Darke, OH; Preble, OH |
| Headline | Tornado Warning issued August 1 at 7:45PM EDT until August 1 at 8:00PM EDT by NWS Wilmington OH |
| Expires | 2026-08-01T20:00:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9890f5b5634a06b9fcf1084f706692091cd7d2af.002.1","noaa_urn:oid:2.49.0.1.840.0.9fc4fcced6d76c4c133a228dc36bfe3125ea6789.001.1","noaa_urn:oid:2.49.0.1.840.0.9a9dbb77307e66526fa5d59dd5bdccae6f115d33.001.1"] |
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.
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