Weekly rainfall wrap + rain outlook, 4 December 2019

Bureau of Meteorology, December 4, 2019

THUNDERSTORMS developed across northern Australia, generating moderate falls, while a series of cold fronts crossed far south-east Australia.

Past seven days: At the start of the week, a broad surface trough was located across inland north-western and northern Australia, and also extended down through inland Queensland and into north-eastern New South Wales.. Light to moderate falls were recorded in parts of northern Australia, southern inland Queensland, and north-eastern and central New South Wales; also in the central to eastern Victoria. A cold front tracked across the south-east and produced moderate falls in western Tasmania.

By the middle of the week, broad areas of low pressure generated thunderstorms across northern and eastern parts of the continent, stretching from the Kimberley, through the Northern Territory, north-west to south-east Queensland and north-eastern New South Wales. Some areas reported moderate rainfall totals with isolated heavier falls associated with the passage of the thunderstorms. Further south, a pre-frontal trough and a fast moving cold front moved across southern South Australia, Victoria, southern New South Wales and Tasmania. Showers and thunderstorms produced light falls in southern South Australia, across much of Victoria and southern Tasmania; heavier falls were reported in southern central Victoria and south-east Tasmania.

In the second half of the week, a significant cold front associated with a deep low pressure system to the south of Tasmania tracked across south-east Australia, with widespread light falls recorded. Moderate falls were recorded from southern central to north-eastern Victoria, elevated areas of the Snowy Mountains and western Tasmania. A strong west to south-westerly flow swept across the south-east, embedded in a number of cold fronts passing Tasmania and southern Victoria. Thunderstorms and showers developed along a trough located across northern Australia, while another trough extending through eastern Queensland generated thunderstorms and moderate falls in south-east Queensland and north-eastern New South Wales.

Rainfall totals in excess of 50 mm were recorded in a western Tasmania, including the highest weekly total of 174 mm at Mount Read. Isolated higher totals were reported from some sites, but are not reflected in the rainfall map.

Rainfall totals between 10 mm and 50 mm were recorded parts of the Pilbara and Kimberley districts in Western Australia; in areas of the north-west Top End, and central parts of the Northern Territory; areas of northern, central and south-east Queensland; north-eastern and south-eastern New South Wales; southern and eastern Victoria; in western and eastern Tasmania, and in parts of south-eastern South Australia.

Little or no rainfall was recorded in remaining areas of Western Australia, the southern half of the Northern Territory, South Australia away from the southeast, the western half of Victoria and along parts of the east coast and far west of Queensland.

Highest weekly totals

New South Wales and Australian Capital Territory
59 mm Mcleans Ridges (Lascott Drive)
53 mm Perisher Valley Aws
47 mm Tumut (Simpson Street), Ballina Airport Aws

52 mm Falls Creek (Rocky Valley)
50 mm Edi UpperMount Buller

143 mm North Head
55 mm Miranda Downs Station
53 mm Springbrook Road

Western Australia
86 mm Theda
56 mm Jubilee Downs
34 mm Old Mornington Homestead

South Australia
42 mm Ashton
40 mm Crafers West, Uraidla

174 mm Mount Read
120 mm Lake Margaret Dam
100 mm Queenstown (South Queenstown)

Northern Territory
128 mm Majestic Orchids
82 mm Pirlangimpi Airport
59 mm Kangaroo Flats (Defence)

Rainfall outlook








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