Verified storm · closed
70 mph wind verified in Linn County, IA — July 20, 2026
Verified against measured NWS storm reports — ground-truth wind measurements, not radar hail estimates, and never forecasts.
Storm stats
| County | Linn County, IA |
|---|---|
| Max wind (NWS reports) | 70 mph |
| Swath area | 30 mi² (78 km²) |
| First radar detection | 2026-07-20 22:10 UTC |
| Last radar detection | 2026-07-20 22:10 UTC |
| Verified | 2026-07-20 22:26 UTC |
| Swath centroid | 42.1400, -91.7400 |
| Storm ID | sw_097894b3 |
Address lookup — $8
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Linn County, IA — verified storm record
Swath has 8 radar-verified hail storms on record for Linn County, IA going back to August 2025, the largest measuring 2.79″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.