At about noon on 15 June 1964 a tornado struck the township of Mandurah, which is about 40 miles south of Perth. This report examines the tornado and associated meteorological information. Several common characteristics of tornadoes were present in this case, including convective instability, dry air above a moist layer, warm advection in the low levels, surface convergence and high level divergence.
RR BROOK (Wed,) studied this question.