Right now
The most recent data we hold from NOAA arrived 25 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 11 June 2026 at 01:00 UTC. It is kept here as a record.
It is the 9th strongest of the 37 detections recorded within 20 km of this point since 31 March 2026. The last comparable one was on 4 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 6:50PM CDT until June 10 at 8:00PM CDT by NWS Chicago IL
An estimated 56,440 people live within 50 km of this point.
Nearby, since 31 March 2026
- July 4, 2026 · score 39 · 5.2 km
- July 6, 2026 · score 43 · 16.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 out of 100, at 79 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 32 / 100 |
| Our confidence | 79% |
| Coordinates | 41.7242, -89.8446 |
| Nearest City | Sterling (14 km) |
| Population Exposed | 56.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T23:50:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.8b5e444375762b9f01fb3a6538019d0f |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lee, IL; Ogle, IL; Bureau, IL; Henry, IL; Whiteside, IL; Clinton, IA; Whiteside, IL; Clinton, IA |
| Headline | Severe Thunderstorm Warning issued June 10 at 6:50PM CDT until June 10 at 8:00PM CDT by NWS Chicago IL |
| Expires | 2026-06-10T20:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8b5e444375762b9f01fb3a6538019d0f61ac51b8.001.1","noaa_urn:oid:2.49.0.1.840.0.8b3797e6a1e18aedddca219c27ccc265ef8284f0.002.1","noaa_urn:oid:2.49.0.1.840.0.a755d4fd0af995ed1dc49f7a21f3e2c3a4351c14.002.1"] |
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.
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