IDD10120 Australian Government Bureau of Meteorology Northern Territory Darwin Regional Forecasting Centre Explanatory Notes issued 10:15 am CST Saturday 30 August 2014 6am Weather Chart A high in the Tasman Sea extends a weak ridge over much the continent. A cold front has moved into the southwest corner of WA, with a prefrontal trough ahead of it. A low pressure system lies in the Tasman Sea. 9am Satellite Picture Cloud over south western Australia is associated with the frontal system. Low to mid level cloud across the eastern Australia coastline is associated with the low pressure system. Mid level cloud across northern Australia is associated with a mid level trough. The remainder of the continent remains relatively cloud free under the influence of the ridge.