No abstract

Detailed field data and radar observations were studied for a period in which five out of eight storms produced considerable damage. It appears that in many cases the radar offers additional information so that it might be useful in short range forecasting. Certain limitations are noted. Additional data and research are needed before the complete utilization of radar in the detection of severe storms can be established.

Photographs are shown of smoke plumes observed on a 10-cm-wavelength radar at the University of Miami. Photographs of the smoke column taken from an aircraft are presented for one case. The smoke sources were grass fires in the Everglades and a trash disposal dump. The smoke echoes can usually be identified on an R scope.

No abstract

All the precipitation which fell during a ten‐year period at four first‐order weather stations in Illinois is classified according to its source from one of six major types of precipitation systems: (1) cold front; (2) warm front; (3) stationary front; (4) squall line; (5) warm air mass; and (6) cold air mass. The amount of precipitation and the frequency of occurrence for each of the six major types by monthly totals are presented in tabular and graphic form. Squall lines and warm air mass showers are shown to be of much greater importance at Cairo than at the stations farther north.