Verified storm · closed
1.2–1.5" hail crossed Winona County, MN — August 9, 2025
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Winona County, MN |
|---|---|
| Max hail (MESH) | 1.5" |
| Mean hail (MESH) | 1.2" |
| Swath area | 9.3 mi² (24 km²) |
| Radar cells (~1 km grid) | 27 |
| First radar detection | 2025-08-09 11:00 UTC |
| Last radar detection | 2025-08-09 11:00 UTC |
| Verified | 2025-08-09 11:00 UTC |
| Swath centroid | 43.9213, -91.6480 |
| Storm ID | sw_a4675340 |
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