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Wisconsin Watch partners with Gigafact to produce Fact Briefs — bite-sized fact checks of trending claims. Read our methodology to learn how we check claims.

Yes.

Climate researchers predict storms that produce golf ball-size or larger hail will become more frequent, thanks to climate change.

According to a 2024 study by Northern Illinois University, a warmer climate increases water vapor in the air, which provides energy for thunderstorms like those seen April 14, 2026, in Wisconsin that produced large hail.

Hail is created when strong updrafts of air are pushed up into the colder atmosphere, freezing water droplets and pushing them around, making the droplets bigger and bigger. Eventually, those hailstones get too heavy and fall to earth. 

“Our study suggests golf ball-size hail or larger will become more common because of more atmospheric instability, which leads to stronger thunderstorm updrafts,” NIU Atmospheric Science Professor Victor Gensini said.

A 2017 study in Nature that looked at historic patterns and forecasts also found hailstone size is expected to increase due to climate change.

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Laura Schulte has covered state government and politics for the Milwaukee Journal Sentinel since 2020. Schulte has reported on state agencies, state legislative sessions and campaigns and was on the ground for the Republican National Convention in Milwaukee. Before joining the Journal Sentinel, she covered business and local government at the Wausau Daily Herald. An Indiana native, Schulte graduated from the Indiana University Media School.