Verified storm · closed

1.2–1.4" hail crossed Fillmore County, MN — August 21, 2026

Measured against the NOAA MRMS national radar feed on its 2-minute cycle — a verified event, not a forecast.

Storm stats

CountyFillmore County, MN
Max hail (MESH)1.4"
Mean hail (MESH)1.2"
Swath area4.2 mi² (11 km²)
Radar cells (~1 km grid)12
First radar detection2026-08-21 08:18 UTC
Last radar detection2026-08-21 09:12 UTC
Verified2026-08-21 08:19 UTC
Swath centroid43.5175, -92.2475
Storm IDsw_61295b6a

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Fillmore County, MN — verified storm record

Swath has 9 radar-verified hail storms on record for Fillmore County, MN going back to August 2025, the largest measuring 2.29″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.