A thick band of cloud with widespread thunderstorm activity is over much of central Australia, while mid to high level cloud is streaming over southeastern Australia. This is associated with an upper air disturbance to the west. Low to high cloud covers the Top End, associated with isolated thunderstorms. Moist onshore flow is pushing low cloud onto the east coast of Queensland. A high pressure system to the south of the mainland is bringing a mass of low level cloud to large parts of southern and central WA, as well as coastal areas in SA and Victoria. The rest of the country is mostly cloud free.