Verified storm · closed
1.2–1.7" hail crossed Warren County, IL — June 11, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Warren County, IL |
|---|---|
| Max hail (MESH) | 1.7" |
| Mean hail (MESH) | 1.2" |
| Swath area | 30 mi² (77 km²) |
| Radar cells (~1 km grid) | 119 |
| First radar detection | 2026-06-11 17:00 UTC |
| Last radar detection | 2026-06-11 17:00 UTC |
| Verified | 2026-06-11 17:00 UTC |
| Swath centroid | 41.0265, -90.5721 |
| Storm ID | sw_56a5af6d |
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Warren County, IL — verified storm record
Swath has 9 radar-verified hail storms on record for Warren County, IL going back to August 2025, the largest measuring 1.74″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.