A Microburst Phenomenon in Kita Village, Hokkaido on September 23, 1986

[摘要] A remarkable windstorm associated with a squall line occurred in Kita Village near Sapporo, Hokkaido, 2125JST September 23, 1986. A detailed ground survey of the damaged area revealedthat the phenomenon was concluded to be a microburst. The estimated total length of the damagewas more than 6km and the damage scale was F2 using the system introduced by Fujita et al. (1972).Radar echoes measured at the Sapporo District Meteorological Observatory indicated a bow echo evolution in connection with the microburst when a squall line accompanied with heavy precipitation that passed over Kita village. Therefore, it was concluded that the Kita village event was one of the wet type microbursts by the synoptic situations and the radar echo patterns.

[学科分类] 大气科学