Right now
The most recent data we hold from IEM 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.
Reported by IEM 169 days ago.
It is the 29th strongest of the 130 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 17 March 2026. 17 more were recorded here in the fortnight before it.
What the source measured
IEM reported: Multiple reports, pictures, and videos from trained weather spotters and the public of pea to penny size hail.
An estimated 3,248,966 people live within 50 km of this point.
Nearby, since 10 March 2026
- July 27, 2026 · score 52 · 1.6 km
- June 10, 2026 · score 76 · 3.7 km
- August 12, 2026 · score 52 · 5.1 km
How we know
Confirmed by 3 independent sources, including IEM.
Our own score for this event is 52 out of 100, at 69 % 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) | 52 / 100 |
| Our confidence | 69% |
| Coordinates | 41.5200, -88.0900 |
| Nearest City | Joliet (1 km) |
| Population Exposed | 3.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-26T16:37:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Score Breakdown
Technical Details
| TypeSummary | H |
| Magnitude | 0.75 |
| Unit | Inch |
| City | Joliet |
| County | Will |
| State | IL |
| Wfo | LOT |
| Remark | Multiple reports, pictures, and videos from trained weather spotters and the public of pea to penny size hail. |
| Google News RssFeed | weather |
| Google News SourceName | NBC 5 Chicago |
| MergedSources | [{"id":"gnews_weather_492924_134","source":"google_news","severity":"medium","severityValue":40,"timestamp":1774527563000,"latitude":41.85,"longitude":-87.65},{"id":"gnews_weather_492922_161","source":"google_news","severity":"medium","severityValue":40,"timestamp":1774522270000,"latitude":41.85,"longitude":-87.65}] |
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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