Abstract
Detailed analyses are made on rain-gauge observations over the western Japan for July 9, 1967 when severe rainfall damages were recorded. It is found that there are two categories of mesoscale rainfall cells, one of which is moving system and the other stationary system. Both systems show a pulsation phenomenon, and as a result the total amount of rainfall over a synoptic scale area fluctuates with rather short period of about 3-4hrs.
Basing on 7 moving systems and 18 stationary systems, some statistical properties of mesoscale rainfall cells are investigated as to the life time, areal precipitation, rainfall intensity and so on.
