A study of the climatology of precipitating clouds at Adelaide, South Australia, for the three year period 1957-58-59, was under taken to confirm, within the limits of radiosonde and surface observations, the roles of various elements, and to derive simple relationships useful to a "duty" forecaster at that station. Cloud type, thickness, height of base, temperature of top, and trajectory of air are listed and related in contingency tables showing frequency and amount of rain. The occurrence of showers at Adelaide from clouds of varying thickness and warmer than -10°C throughout, is related closely to maximum surface wind speed and trajectory of air du ring the six hours preceding the report of rain.
Spillane et al. (Sat,) studied this question.