Right now
The most recent data we hold from NOAA arrived 2 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 June 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 88 recorded within 20 km of this point since 27 April 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 21 at 6:58PM EDT until June 21 at 7:15PM EDT by NWS Indianapolis IN
Urban PEI: 18,012 within a heuristic 50 km radius; not unique people.
Nearby, since 27 April 2026
- May 16, 2026 · score 34 · 2.1 km
- June 16, 2026 · score 22 · 7.7 km
- May 12, 2026 · score 34 · 15.9 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
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 | 0.89/1 |
| Coordinates | 38.7571, -88.0283 |
| Nearest City | Vincennes (44 km) |
| Urban exposure index (PEI) | 18.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T22:58:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.cc4761b673e422e1b7ffa9dfdb3f2794 |
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: 2026-06-21T22:58:00.000Z.
First archived: 2026-06-21T23:00:44.323Z. 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, IN; Owen, IN; Lawrence, IL; Richland, IL; Wayne, IL and 5 more areas |
| Headline | Tornado Warning issued June 21 at 6:58PM EDT until June 21 at 7:15PM EDT by NWS Indianapolis IN |
| Expires | 2026-06-21T19:15:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cc4761b673e422e1b7ffa9dfdb3f2794c93f8bde.001.1","noaa_urn:oid:2.49.0.1.840.0.213cb473f561bd3aa15d914b26c548c24288d308.001.1","noaa_urn:oid:2.49.0.1.840.0.cbb483c07f50b8de3275dbb17feacb5b4ae4770b.001.1","noaa_urn:oid:2.49.0.1.840.0.8c9181347ec4d9aa3dfe5c0fd25da236193e74a0.001.1","noaa_urn:oid:2.49.0.1.840.0.865a28099c7fe9bce7933357da822d61305761b4.001.1","noaa_urn:oid:2.49.0.1.840.0.afb7d64c35b39a93847a9410eb57290eba40f002.002.1","noaa_urn:oid:2.49.0.1.840.0.a79724d104f8f27fb2c85b5b7133b82aa4e8d189.001.1","noaa_urn:oid:2.49.0.1.840.0.461a192db8b3bcec8ecdaa9239c9d3a3954f4758.001.1"] |
| Iem TypeSummary | D |
| Iem City | Sullivan |
| Iem County | Sullivan |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Corrects previous tstm wnd dmg report from Sullivan. Several tree limbs blown down accompanied by approximately 70 mph winds. |
| MergedSources | [{"id":"iem_G_39.100_-87.410_1782080340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782080340000,"latitude":39.1,"longitude":-87.41},{"id":"iem_D_39.100_-87.410_1782080340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782080340000,"latitude":39.1,"longitude":-87.41}] |
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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