Verified storm · closed
1.1–1.6" hail crossed Whiteside County, IL — August 21, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Whiteside County, IL |
|---|---|
| Max hail (MESH) | 1.6" |
| Mean hail (MESH) | 1.1" |
| Swath area | 8.2 mi² (21 km²) |
| Radar cells (~1 km grid) | 23 |
| First radar detection | 2026-08-21 21:08 UTC |
| Last radar detection | 2026-08-21 21:58 UTC |
| Verified | 2026-08-21 21:11 UTC |
| Swath centroid | 41.8672, -89.6663 |
| Storm ID | sw_2378ee17 |
Address lookup — $8
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Whiteside County, IL — verified storm record
Swath has 7 radar-verified hail storms on record for Whiteside County, IL going back to April 2026, the largest measuring 1.69″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.
