Right now
The most recent data we hold from NOAA arrived 2 hours 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 10 June 2026 at 21:00 UTC. It is kept here as a record.
It is the 10th strongest of the 45 detections recorded within 20 km of this point since 3 April 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 3:38PM CDT until June 10 at 4:00PM CDT by NWS Lincoln IL
Urban PEI: 837,797 within a heuristic 50 km radius; not unique people.
Nearby, since 3 April 2026
- June 10, 2026 · score 41 · 0.0 km
- June 11, 2026 · score 41 · 6.0 km
- June 11, 2026 · score 41 · 12.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 41 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) | 41 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 42.3595, -88.6322 |
| Nearest City | Woodstock (16 km) |
| Urban exposure index (PEI) | 837.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T20:38:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.fbbf9bf297590eaa0e8e65aabbb6088e |
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: 2026-06-10T20:38:00.000Z.
First archived: 2026-06-10T20:39:41.630Z. 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 | McLean, IL; Morgan, IL; Sangamon, IL; Cook, IL; Grundy, IL; Will, IL and 10 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 3:38PM CDT until June 10 at 4:00PM CDT by NWS Lincoln IL |
| Expires | 2026-06-10T16:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fbbf9bf297590eaa0e8e65aabbb6088efe802fb2.002.1","noaa_urn:oid:2.49.0.1.840.0.4343e41ccc27989cb685f9e96028fa07ffdc5042.002.1","noaa_urn:oid:2.49.0.1.840.0.48f557f8beb13440497c834c00926897084abe70.001.1","noaa_urn:oid:2.49.0.1.840.0.9fb58bf054d639947ce598372d6da671e2384338.001.1","noaa_urn:oid:2.49.0.1.840.0.38adf1257748e338483cf35ee0a398dd84afd897.002.1","noaa_urn:oid:2.49.0.1.840.0.10b072e4c6195b345aa1f2a3de981c99adcb41e9.001.1","noaa_urn:oid:2.49.0.1.840.0.64226806fcd8f713b368d07bebfa9803aeda130e.002.1","noaa_urn:oid:2.49.0.1.840.0.ecf84a60287f8296355e6227376ee56e5cad4094.001.1","noaa_urn:oid:2.49.0.1.840.0.f4e57f9cb802105370d3bc81bdbfbaa9deaa5199.001.1","noaa_urn:oid:2.49.0.1.840.0.bf606f8c3a090d3ec5490be8499f8c8172a5ce51.001.1","noaa_urn:oid:2.49.0.1.840.0.9980b762a74e2a4e12ac918c93d6aa3fedf6ef9b.001.1","noaa_urn:oid:2.49.0.1.840.0.e968261716db3417708d0d7d6e4b93197595f2c5.001.1","noaa_urn:oid:2.49.0.1.840.0.0901ef17537f8e28c5acb1bde78003c4f3da2c1c.002.1"] |
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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