Right now
The most recent data we hold from NOAA arrived 5 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 65 recorded within 20 km of this point since 15 March 2026 — 10 others scored the same. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 21 at 7:40PM EDT until June 21 at 8:15PM EDT by NWS Indianapolis IN
Urban PEI: 18,012 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 20, 2026 · score 34 · 11.9 km
- June 21, 2026 · score 58 · 18.8 km
- June 18, 2026 · score 40 · 20.6 km
How we know
5 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 | 0.90/1 |
| Coordinates | 38.7744, -87.4279 |
| Nearest City | Vincennes (14 km) |
| Urban exposure index (PEI) | 18.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T23:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.a59792d37fd2939f23bb6a95a766033a |
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: 2026-06-21T23:40:00.000Z.
First archived: 2026-06-21T23:43:00.663Z. 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 | Daviess, IN; Knox, IN; Marion, IL; Brown, IN; Monroe, IN; Morgan, IN and 4 more areas |
| Headline | Tornado Warning issued June 21 at 7:40PM EDT until June 21 at 8:15PM EDT by NWS Indianapolis IN |
| Expires | 2026-06-21T20:15:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a59792d37fd2939f23bb6a95a766033a88c1124a.001.1","noaa_urn:oid:2.49.0.1.840.0.5bb9a37e87feb2ba9214e6c073767c7edbec6194.001.1","noaa_urn:oid:2.49.0.1.840.0.dfd6876ee8c0d388d27f4f4b614fe9ca28a7fe4d.001.1","noaa_urn:oid:2.49.0.1.840.0.e6ef0bb965110ad38d8dc2a19094b98dbf1bbe0f.001.1","noaa_urn:oid:2.49.0.1.840.0.00883a7d1e632112bc0650d2f9573e9842bc0c76.001.1","noaa_urn:oid:2.49.0.1.840.0.df56befd49218ee568a8187d981ff30ef29f3a5a.001.1","noaa_urn:oid:2.49.0.1.840.0.529c5757cc47b86f5b940730fee2cea3ac89c1c8.002.1"] |
| Iem TypeSummary | D |
| Iem City | 3 W Hymera |
| Iem County | Sullivan |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Law enforcement in Sullivan County reports many trees and power lines are down...multiple vehicles damaged and several houses damaged. |
| 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}] |
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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