Cause of Wide Spread Wind Hazard on Coastal Area in Kochi Prefecture on 10 December 2013

Abstract

Severe wind hazard occurred on coastal area in Kochi Prefecture on 10 December 2013. The present study aims to clarify the meteorological environment of this event and the characteristics of wind gust. The wind hazard was caused by the passage of intense rain band when the extratropical cyclone developing rapidly passed above the damaged area. We found that the damaged areas in Konan city were yielded by more than two tornadoes. Their intensities are F0 for the wide tornado and F1 for the narrow tornado, respectively. The other damaged areas are scattered. These damages were caused by strong westerly wind gust accompanied by intense rain band and southern wind toward depression.