A BOAC airplane fell on the leewind side of Mt. Fuji around 14 p. m. on 5 March 1966. Using the high-resolution
JMA non-hydrostatic numerical model and JRA-55 analysis, atmospheric environment and disturbance were
studied at that time. Under the northwesterly wind in the cold-air outbreak situation, the inversion of temperature
was found around the height of 2 km and the hydraulic jump disturbance occurred on the leewind side of Mt. Fuji.
This may cause the trouble of the BOAC airplane. It is shown that the statement that “we should not approach
Mt. Fuji in the clear day” has meaningful meteorological reasons. A case of roll clouds on 20 April 2015 was also
simulated when no inversion was seen.departmental bulletin pape
