In several regions of Europe, including Switzerland, south-west Germany and Austria, hail damage has increased substantially in recent years with the consequence that hail is now one of the major atmospheric risks. From 25th to 27th June 2014 the Mobiliar Lab, the Karlsruhe Institute of Technology (KIT), MeteoSwiss, and the Oeschger Centre for Climate Change (OCCR) jointly organized a workshop for researchers and professionals to discuss different aspects of hail.