April 6, 2010: Hail in Dodge County

A complex synoptic enviornment set up in southern Wisconsin during the overnight hours and early morning of 5-6 April. A warm front stalled just south of the Wisconsin-Illinois border. Overnight on 5 April, elevated convection was driven by a vigorous LLJ bringing a significant risk of damaging hail and strong winds. During the morning of 6 April, remnants of an MCS tracked over the same southern area of Wisconsin bringing another round of strong thunderstorms just north of the surface warm front. Finally, during the evening, deep shear and elevated instability lead to an narrow corridor in which strong thunderstorms were able to develop and race across southern Wisconsin yet again. The main threats were large hail and strong winds.