Abstract
　The severe disater caused by gusts and hailfalls occurred in the southern inland of Akita Prefecture on August 6, 1985. This report deals with the outline of meteonological conditions, damages and characteristics of the gusts in relation to the hailstorms.
　The following main results were obtained:
1) The gusts accompanied with hailfalls were brought about by well-developed thunderstorms related mainly to the unstable stratification by advection of upper cold air.
2) The damaged area by the gusts is about 5 km in north-south direction and about 4 km in east-west direction. The degree of damages is remarkable in western and southwestern side of the hailfall area. Furthermore, the gusts show a divergent tendency in the direction of mainly west, southwest and south from the damaged area by hailfalls. Therefore, it seems that the damages by gusts was caused by the dowmburst accompanied by well-developed cumulonimbus.
3) Most of the damages were the injury of heads of rice plants and trellises and blossoms of hops by hailfalls and gusts.

*秋田大学教育学部
College of Education, Akita Univ.