Data are presented for a period of anomalous ionospheric radiowave absorption observed at Camden, Australia (34 S, 151 E) during June 1980. Previously observed winter anomalies have been restricted to the Northern Hemisphere. Ionospheric absorption was measured by an automated pulse amplitude system employing a microprocessor for both system control functions and signal processing. A least-squares method is used to fit a second-degree polynomial to the observations in order to characterize the diurnal variation in amplitude data. The measurements suggest that the anomalous absorption had a lower limit of 10 dB and may have reached 15 dB, depending on reference level. It is concluded that an asymmetry exists between Northern and Southern Hemispheres with regard to winter anomalous absorption.