Reported by SPC 75 days ago.
It is the 2nd strongest of the 431 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 300 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Hail 150 in near 1 E Arcola, Douglas, IL. Report from mPING: Ping Pong Ball (1.50 in.). (ILX)
An estimated 167,716 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 18, 2026 · score 49 · 8.0 km
- May 18, 2026 · score 43 · 15.5 km
- June 20, 2026 · score 43 · 15.9 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 49 out of 100, at 70 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | high |
| Calamity Score (ours) | 49 / 100 |
| Our confidence | 70% |
| Coordinates | 39.6800, -88.3000 |
| Nearest City | Charleston (23 km) |
| Population Exposed | 167.7K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-18T12:07:22.704Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | hail |
| Speed | 150 |
| Location | 1 E Arcola |
| County | Douglas |
| State | IL |
| Comments | Report from mPING: Ping Pong Ball (1.50 in.). (ILX) |
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 10 February 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 Charleston?
Calamity.live data shows a weather event with CalamityScore 49/100, near Charleston (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.