Verified storm · closed

1.3–2.1" hail crossed Pinal County, AZ — August 20, 2026

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

Storm stats

CountyPinal County, AZ
Max hail (MESH)2.1"
Mean hail (MESH)1.3"
Swath area10 mi² (27 km²)
Radar cells (~1 km grid)26
First radar detection2026-08-20 02:58 UTC
Last radar detection2026-08-20 03:22 UTC
Verified2026-08-20 03:00 UTC
Swath centroid33.0827, -110.9927
Storm IDsw_8374fec7
Storm card: 1.3–2.1" hail crossed Pinal County, AZ — August 20, 2026

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Pinal County, AZ — verified storm record

Swath has 26 radar-verified hail storms on record for Pinal County, AZ going back to September 2025, the largest measuring 2.55″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.