Verified storm · closed

1.1–1.3" hail crossed St. Clair County, MI — September 2, 2026

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

Storm stats

CountySt. Clair County, MI
Max hail (MESH)1.3"
Mean hail (MESH)1.1"
Swath area16 mi² (41 km²)
Radar cells (~1 km grid)45
First radar detection2026-09-02 23:14 UTC
Last radar detection2026-09-03 00:20 UTC
Verified2026-09-02 23:15 UTC
Swath centroid42.9661, -82.5943
Storm IDsw_fb6f84cd

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St. Clair County, MI — verified storm record

Swath has 4 radar-verified hail storms on record for St. Clair County, MI going back to June 2026, the largest measuring 1.80″. Every one was measured against NOAA MRMS radar — not estimated, and not a forecast.