Large hail fell in parts of the Oryol region. At the station Bolhov diameter hail up to 55 mm. Rain storm passed, fell 11 heavenly moisture. All this happened in the early morning hours.
The reason for such a turbulent atmospheric activity was cold atmospheric front. In his area developed convective activity, bad weather clouds were high. And in their top of the water droplet freezes turned to ice crystals, which have reached the surface.