Right now
The most recent data we hold from NOAA arrived 3 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 21 September 2026 at 01:30 UTC. It is kept here as a record.
It is the 4th strongest of the 141 detections recorded within 20 km of this point since 27 April 2026. The last comparable one was on 16 September 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued September 20 at 7:39PM CDT until September 20 at 8:30PM CDT by NWS Lincoln IL
Nearby, since 27 April 2026
- September 21, 2026 · score 46 · 4.0 km
- July 2, 2026 · score 22 · 4.7 km
- July 1, 2026 · score 22 · 4.7 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Critical |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.71/1 |
| Coordinates | 38.6983, -88.1883 |
| Nearest City | Vincennes (57 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-21T00:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.9bdc42b097ea19e683c4e7c543327325777c91c7.001.1 |
Physical priority index · v5. 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: 2026-09-21T00:39:00.000Z.
First archived: 2026-09-21T00:47:20.527Z. 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 | Clay, IL; Richland, IL |
| Headline | Tornado Warning issued September 20 at 7:39PM CDT until September 20 at 8:30PM CDT by NWS Lincoln IL |
| Expires | 2026-09-20T20:30:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 N Newton |
| Spc County | Jasper |
| Spc State | IL |
| Spc Comments | Wind blew some debris into a field. Photo provided. (ILX) |
| Iem TypeSummary | D |
| Iem City | 2 N Newton |
| Iem County | Jasper |
| Iem State | IL |
| Iem Wfo | ILX |
| Iem Remark | Wind blew some debris into a field. Photo provided. |
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.
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