Right now
The most recent data we hold from NOAA arrived 16 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 00:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 118 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 21 at 8:16PM EDT until June 21 at 8:30PM EDT by NWS Indianapolis IN
Urban PEI: 18,012 within a heuristic 50 km radius; not unique people.
Nearby, since 11 March 2026
- June 21, 2026 · score 58 · 6.0 km
- March 13, 2026 · score 34 · 9.2 km
- June 3, 2026 · score 34 · 10.2 km
How we know
2 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 | 0.84/1 |
| Coordinates | 38.5598, -87.5045 |
| Nearest City | Vincennes (14 km) |
| Urban exposure index (PEI) | 18.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-22T00:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.901448e0fb3b8a4ccaf2aa9278ae426f |
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: 2026-06-22T00:16:00.000Z.
First archived: 2026-06-22T00:19:21.283Z. 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 | Lawrence, IN; Martin, IN; Bartholomew, IN; Decatur, IN; Shelby, IN; Gibson, IN and 4 more areas |
| Headline | Tornado Warning issued June 21 at 8:16PM EDT until June 21 at 8:30PM EDT by NWS Indianapolis IN |
| Expires | 2026-06-21T20:30:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.901448e0fb3b8a4ccaf2aa9278ae426f1e49dbcd.001.1","noaa_urn:oid:2.49.0.1.840.0.b95a28df1b3b47b1ccd016cc3c08ed3bded24fcf.001.1","noaa_urn:oid:2.49.0.1.840.0.365ca420eb2ca9d20a480af92fab7961d398831a.001.1","noaa_urn:oid:2.49.0.1.840.0.18fc55b8262341f7c8275623c81ee7648c864035.001.1","noaa_urn:oid:2.49.0.1.840.0.365bbad845ddc481ee47caf724d381e4cb9813b4.001.1","noaa_urn:oid:2.49.0.1.840.0.beb93c2909f882781359a08ad6aa88f0c70374a9.001.1","noaa_urn:oid:2.49.0.1.840.0.ef2acbc4a209f67b3317a3fc871639a37c4c18ee.001.1"] |
| Iem TypeSummary | C |
| Iem City | Vincennes |
| Iem County | Knox |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Time is approximate. Cloud dissipated during the call to NWS. |
| MergedSources | [{"id":"iem_C_38.680_-87.510_1782084900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782084900000,"latitude":38.68,"longitude":-87.51}] |
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 Vincennes?