Verified storm · closed
74 mph wind verified in Pottawattamie County, IA — September 15, 2026
Verified against measured NWS storm reports — ground-truth wind measurements, not radar hail estimates, and never forecasts.
Storm stats
| County | Pottawattamie County, IA |
|---|---|
| Max wind (NWS reports) | 74 mph |
| Swath area | 30 mi² (78 km²) |
| First radar detection | 2026-09-15 04:42 UTC |
| Last radar detection | 2026-09-15 04:42 UTC |
| Verified | 2026-09-15 05:45 UTC |
| Swath centroid | 41.2800, -95.7300 |
| Storm ID | sw_c36c89a9 |
Address lookup — $8
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Pottawattamie County, IA — verified storm record
Swath has 10 radar-verified hail storms on record for Pottawattamie County, IA going back to April 2026, the largest measuring 2.72″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.