In several regions of Europe, including Switzerland, south-west Germany, and Austria, hail damage has increased substantially in recent years, such that hailstorms have become one of the major atmospheric hazards. The Mobiliar Lab, the Karlsruhe Institute of Technology (KIT), MeteoSwiss, and the Oeschger Centre for Climate Change Research (OCCR) are jointly organizing a workshop for researchers and professionals to discuss different aspects of hail.