IDD10120 Australian Government Bureau of Meteorology Northern Territory Darwin Regional Forecasting Centre Explanatory Notes issued 10:15 am CST Wednesday 19 June 2013 6am Weather Chart A high [1030hPa] south of SA extends a ridge across much of the continent while a low [1011hPa] in the Great Australian Bight extends a weak trough through southeastern WA. A second high [1027hPa] in the Indian Ocean extends a ridge across southwest WA. 9am Satellite Picture Mid to high level cloud lies over much of WA, southern NT, SA and central QLD and is associated with a developing mid level trough. Mid level cloud over the Gulf of Carpentaria and Cape York is associated with shower and thunderstorm activity over the maritime continent. Low level cloud can be seen across parts of southeast Australia associated with onshore winds. Convective cloud can be seen south of WA associated with the low pressure system. The rest of the continent remains relatively cloud free.