Abstract
In the Sea of Japan off the coast, sometimes the strong seasonal storm developed rapidly in winter. On the other hand, a few number of typhoons approaches or make landfall in the Pacific Ocean of Japan in summer. These tropical and extra-tropical cyclones give severe damage to coastal areas around Japan. Recent studies have proposed prediction model of expected value of Hmax. Although the prediction theory has been validated by numerical model and wave flume experiments, the validation of the theory against field data is not examined well. In this study, characteristic extreme weather disturbances around Japan in the last few years, winter storm occurred in April 2012 and two severe typhoons in 2012 (Sanba) 2014 (Phanfone) are selected for analsys. This study was carried out for estimates of significant wave height H1/3 and maximum wave height Hmax by spectral wave model SWAN.