Right now
The most recent data we hold from NOAA arrived 37 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 June 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 73 recorded within 20 km of this point since 15 March 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 21 at 6:31PM CDT until June 21 at 7:15PM CDT by NWS St Louis MO
Urban PEI: 18,012 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 20, 2026 · score 34 · 3.9 km
- June 18, 2026 · score 40 · 16.9 km
- August 13, 2026 · score 34 · 17.7 km
How we know
6 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 | 38.8469, -87.4230 |
| Nearest City | Vincennes (21 km) |
| Urban exposure index (PEI) | 18.0K within 50 km |
| Impact Tier | significant |
| Date | 2026-06-21 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.b12cbf0b247ffbe2c75e803c9e08ffa0 |
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: 2026-06-21 — time not reported.
First archived: 2026-06-21T23:32:19.229Z. 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 | Marion, IL; Daviess, IN; Knox, IN; Brown, IN; Monroe, IN; Morgan, IN and 3 more areas |
| Headline | Tornado Warning issued June 21 at 6:31PM CDT until June 21 at 7:15PM CDT by NWS St Louis MO |
| Expires | 2026-06-21T19:15:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b12cbf0b247ffbe2c75e803c9e08ffa0d0f2e9ff.001.1","noaa_urn:oid:2.49.0.1.840.0.fb3a5198b1bf1083c7a83f39837ae59f09d77dc3.001.1","noaa_urn:oid:2.49.0.1.840.0.b9e880271a68d7fe8133d1a5d1f3568a501f66a0.001.1","noaa_urn:oid:2.49.0.1.840.0.2fa09d510b8f9c7826f6d0fd06ce7dc066eaca06.002.1","noaa_urn:oid:2.49.0.1.840.0.c989f2c9c7e52891bae67e3e89e69ba6649d2ed5.001.1","noaa_urn:oid:2.49.0.1.840.0.6b058405d1698ac7e198e43862fd2c2c5336f9f6.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 N Indiana State Unive |
| Iem County | Vigo |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Tree branch and shingles blown off by thunderstorm 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_C_39.310_-86.960_1782082440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782082440000,"latitude":39.31,"longitude":-86.96},{"id":"iem_D_39.100_-87.410_1782080340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782080340000,"latitude":39.1,"longitude":-87.41},{"id":"iem_D_39.190_-87.350_1782082200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782082200000,"latitude":39.19,"longitude":-87.35},{"id":"iem_D_39.490_-87.410_1782079980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782079980000,"latitude":39.49,"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.
Review the area, threshold and delivery channel in your account.
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