Right now
The most recent data we hold from NOAA arrived 6 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 25 June 2026 at 00:00 UTC. It is kept here as a record.
It is the 7th strongest of the 61 detections recorded within 20 km of this point since 16 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: Severe Thunderstorm Warning issued June 24 at 6:32PM CDT until June 24 at 7:00PM CDT by NWS Chicago IL
Urban PEI: 320,806 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 24, 2026 · score 43 · 0.8 km
- July 28, 2026 · score 43 · 11.7 km
- May 7, 2026 · score 37 · 12.2 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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 | Medium |
| Calamity Score (ours) | 43 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 42.5247, -89.0606 |
| Nearest City | Beloit (3 km) |
| Urban exposure index (PEI) | 320.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T23:32:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5bb5ec8d8cb019b95b2e1dc2ee4f017c |
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: 2026-06-24T23:32:00.000Z.
First archived: 2026-06-24T23:36:30.720Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lee, IL; Stephenson, IL; Green, WI and 9 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 6:32PM CDT until June 24 at 7:00PM CDT by NWS Chicago IL |
| Expires | 2026-06-24T19:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 12 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5bb5ec8d8cb019b95b2e1dc2ee4f017cd14cada0.001.1","noaa_urn:oid:2.49.0.1.840.0.873d5e6035676ac43ca1a26c362c0711134530d3.002.1","noaa_urn:oid:2.49.0.1.840.0.ace696c0024d8133f43d28a7dd3e8214e5d0ac9b.002.1","noaa_urn:oid:2.49.0.1.840.0.4aa11bb2965155b997b6b6a64b0c53b4a8ee7128.001.1","noaa_urn:oid:2.49.0.1.840.0.0e3d271806321f97a3b0a2a6dd52e7cbeaade061.001.1","noaa_urn:oid:2.49.0.1.840.0.52047b04c26c06d9775f6e845a11c1c37bd17ed7.001.1","noaa_urn:oid:2.49.0.1.840.0.c30e2bedd3817d6728c05d309be5aa531863c233.001.1","noaa_urn:oid:2.49.0.1.840.0.bfa648e56fdc56aab9905edbe18db5a6e16264f2.001.1","noaa_urn:oid:2.49.0.1.840.0.91ddeeadfe32a75bde6cf1a5642dc77cad713a69.001.1","noaa_urn:oid:2.49.0.1.840.0.0f5fd705636c27377f6aeeed898dcd16d23512ec.002.1","noaa_urn:oid:2.49.0.1.840.0.a2bd85f6a188d4731bcff3d1fa68d9594c2fb07c.002.1","noaa_urn:oid:2.49.0.1.840.0.d092571569b4f663f1236e36c7b625c23010a027.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 2 E Huntley |
| Iem County | McHenry |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Public report of 1.5 inch hail near Huntly. Relayed via mping. |
| MergedSources | [{"id":"iem_H_42.160_-88.300_1782341640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341640000,"latitude":42.16,"longitude":-88.3},{"id":"iem_H_42.150_-89.230_1782340920000","source":"iem","severity":"low","severityValue":25,"timestamp":1782340920000,"latitude":42.15,"longitude":-89.23},{"id":"iem_H_42.160_-88.340_1782341820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341820000,"latitude":42.16,"longitude":-88.34},{"id":"iem_H_42.180_-88.390_1782340860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782340860000,"latitude":42.18,"longitude":-88.39}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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