WIDESPREAD rain, showers and thunderstorms impacted the tropical north throughout the week, driven by active wet season troughs and low-pressure systems, including tropical lows 18U and 21U.

Weekly rainfall totals of 50 to 200 mm, and locally higher, were recorded across much of northern Queensland, the Top End of the Northern Territory and parts of the Kimberley, Western Australia.

Ex-tropical cyclone Luana tracked southwards across Western Australia’s interior as a tropical low, producing heavy rainfall.

Weekly rainfall totals of 15 to 150 mm, and locally higher, were recorded across large inland and south-eastern regions of Western Australia extending to south-western parts of South Australia.

A cooler airmass interacted with a warmer airmass over the eastern coast, triggering isolated showers and thunderstorms, across coastal regions of the eastern mainland.

Weekly rainfall totals of 10 to 50 mm, and locally higher, were recorded across coastal regions of New South Wales and south-eastern Queensland and eastern Victoria.

The highest weekly total (at a Bureau gauge) was 316.2 mm at Nitmiluk Ridge in the Northern Territory.

The highest daily total (at a Bureau gauge) was 272.0 mm at Cowley Beach (Defence) in Queensland in the 24 hours to 9 am on 27 January.