Reported by SPC 175 days ago.
No stronger detection stands among the 128 recorded within 20 km of this point since 10 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Hail 125 in near 1 N Douglas - Chicago, Cook, IL. NWS employee reports hail up to half dollar size in south loop community area of Chicago. Time estimated by radar. (LOT)
An estimated 7,825,876 people live within 50 km of this point.
Nearby, since 10 March 2026
- March 11, 2026 · score 58 · 0.0 km
- July 3, 2026 · score 52 · 1.1 km
- April 18, 2026 · score 52 · 1.1 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 58 out of 100, at 89 % 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 | High |
| Calamity Score (ours) | 58 / 100 |
| Our confidence | 89% |
| Coordinates | 41.8500, -87.6200 |
| Nearest City | Near South Side (1 km) |
| Population Exposed | 7.8M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-10T23:17:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 125 |
| Location | 1 N Douglas - Chicago |
| County | Cook |
| State | IL |
| Comments | NWS employee reports hail up to half dollar size in south loop community area of Chicago. Time estimated by radar. (LOT) |
| Iem TypeSummary | H |
| Iem Magnitude | 1.25 |
| Iem Unit | Inch |
| Iem City | 1 N Douglas - Chicago |
| Iem County | Cook |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | NWS employee reports hail up to half dollar size in south loop community area of Chicago. Time estimated by radar. |
| MergedSources | [{"id":"iem_H_41.850_-87.620_1773184620000","source":"iem","severity":"low","severityValue":25,"timestamp":1773184620000,"latitude":41.85,"longitude":-87.62}] |
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.
Want to know when something happens near Near South Side?
Calamity.live data shows a weather event with CalamityScore 58/100, near Near South Side (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.