Verified storm · active
1.2–2.4" hail crossed Hanson County, SD — September 5, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | Hanson County, SD |
|---|---|
| Max hail (MESH) | 2.4" |
| Mean hail (MESH) | 1.2" |
| Swath area | 134 mi² (347 km²) |
| Radar cells (~1 km grid) | 386 |
| First radar detection | 2026-09-05 09:02 UTC |
| Last radar detection | 2026-09-05 11:50 UTC |
| Verified | 2026-09-05 09:04 UTC |
| Swath centroid | 43.5253, -97.9351 |
| Storm ID | sw_23122b91 |

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Hanson County, SD — verified storm record
Swath has 8 radar-verified hail storms on record for Hanson County, SD going back to July 2025, the largest measuring 2.99″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.