Abstract
Extreme wind speeds for various return periods during rainfall at 49 meteorological stations in Japan were estimated using the statistical method for extremes. The 10 minutes average wind speeds and hourly precipitations for 13 years were used for analysis. These wind speeds were classified into seven categories according to the amount of hourly precipitation. Annual maximum wind speeds in each precipitation class were then extracted from these data. Multiple regression analysis, which assumed that annual maximum wind speed during rainfall was a linear function of a reduced variate and of hourly precipitation, was used to fit the extreme type-I distribution.
