Verified storm · closed
1.1–2.1" hail crossed McPherson County, SD — August 30, 2026
Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.
Storm stats
| County | McPherson County, SD |
|---|---|
| Max hail (MESH) | 2.1" |
| Mean hail (MESH) | 1.1" |
| Swath area | 60 mi² (156 km²) |
| Radar cells (~1 km grid) | 180 |
| First radar detection | 2026-08-30 00:08 UTC |
| Last radar detection | 2026-08-30 01:42 UTC |
| Verified | 2026-08-30 00:10 UTC |
| Swath centroid | 45.7683, -99.6443 |
| Storm ID | sw_4dcf8d43 |
Address lookup — $8
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McPherson County, SD — verified storm record
Swath has 25 radar-verified hail storms on record for McPherson County, SD going back to July 2025, the largest measuring 3.84″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.
