DURING the week a humid airmass over central and eastern Australia combined with a series of troughs triggered heavy falls, isolated severe thunderstorms, strong winds, high hail accumulations and locally giant hail larger than 5cm.
On October 17 and 18, a deep low-pressure system and associated cold front moved across south-eastern Australia and combined with a humid airmass, producing widespread rainfall with some severe isolated thunderstorms and strong winds.
A trough brought several days of rainfall and isolated thunderstorms across western and northern parts of the Top End of the Northern Territory.
Weekly rainfall totals of 25-50mm were recorded across much of south-eastern Australia, Western Australia’s south-west coast and the western Top End of the NT.
Weekly rainfall totals of 50-100mm were recorded across central parts of Victoria including the ranges and isolated pockets of New South Wales, northern and southern Tasmania, and the western Top End of the NT.
The highest weekly rainfall total at a Bureau gauge was 124mm at Labelle Downs in the NT, and the highest daily rainfall total at a Bureau gauge was 79mm at Thredbo AWS in NSW in the 24 hours to 9am on October 19.
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