Hail in Polk County, Wisconsin
Hail April 17, 2026 · Polk County, Wisconsin
Where the report was made, with tornadoes recorded within 15 miles over the years.
The wider storm
A surface cold front moved across Minnesota and proceeded into western Wisconsin on April 17th which ultimately produced two rounds of thunderstorms. The first line of storms was associated with a warm front which produced quarter size hail across south-central Minnesota mid-morning. The secondary and stronger line of storms tied to the cold front itself moved through in the early afternoon across eastern MN and western WI. This line produced a swath of large hail measuring from quarter size up to half dollar size hail 4 miles NNW of Bay City (Pierce County) which ended up being the largest measured hailstone from this event.
Began near St Croix Falls (45.4000, -92.6200).
Source: NOAA Storm Events Database, event 1330511. Narratives are written by the National Weather Service forecast office that issued the report.
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