Right now
The most recent data we hold from NOAA arrived 10 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 12 June 2026 at 01:30 UTC. It is kept here as a record.
No stronger detection stands among the 52 recorded within 20 km of this point since 11 March 2026 — 4 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 11 at 7:54PM CDT until June 11 at 8:30PM CDT by NWS Chicago IL
Urban PEI: 756,757 within a heuristic 50 km radius; not unique people.
Nearby, since 11 March 2026
- June 11, 2026 · score 41 · 8.7 km
- June 13, 2026 · score 48 · 9.4 km
- June 12, 2026 · score 72 · 10.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 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) | 72 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 41.2493, -87.3444 |
| Nearest City | Crown Point (19 km) |
| Urban exposure index (PEI) | 756.8K within 50 km |
| Impact Tier | catastrophic |
| Date | 2026-06-12 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.895415207f7f1a5b31ffc7c2288e9ec9 |
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: 2026-06-12 — time not reported.
First archived: 2026-06-12T00:55:27.710Z. 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 | Cook, IL; DuPage, IL; Jasper, IN; Porter, IN; Ford, IL; Benton, IN; Jasper, IN; Newton, IN and 5 more areas |
| Headline | Tornado Warning issued June 11 at 7:54PM CDT until June 11 at 8:30PM CDT by NWS Chicago IL |
| Expires | 2026-06-11T20:30:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.895415207f7f1a5b31ffc7c2288e9ec947ddd852.001.1","noaa_urn:oid:2.49.0.1.840.0.06973d4f2cafffc3582e33806b06cfad2806f026.001.1","noaa_urn:oid:2.49.0.1.840.0.b6cf4799daefcb8e643086d84d9182c95a5e0bc8.001.1","noaa_urn:oid:2.49.0.1.840.0.3ad0f65db1f4c2c44b771092faa7a6e3988969ba.002.1","noaa_urn:oid:2.49.0.1.840.0.e7abcec94d2c6ec7dd2a4675b2d747869719204d.001.1","noaa_urn:oid:2.49.0.1.840.0.f29a84dc37817a097bda191048959987919e2be7.001.1","noaa_urn:oid:2.49.0.1.840.0.f350c603a05f0a578005a1c70f76a840db1c772b.001.1","noaa_urn:oid:2.49.0.1.840.0.1be0a3d5ffe96de885a26718355523d3fcd07b63.001.1","noaa_urn:oid:2.49.0.1.840.0.144369640e1a725574250337a0771942a643e596.001.1","noaa_urn:oid:2.49.0.1.840.0.7d8950ee04ff04dc6ec21af4558c88566ab24730.002.1"] |
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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