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Wednesday, 04 January 2017 11:23

Rainfall to Jan 3

For the week to 3 January 2017, rainfall was recorded in the Kimberley and south coasts of Western Australia; the central and eastern districts  of South Australia; most of the Northern Territory except in the south; northern, eastern and the central interior of Queensland; southern and eastern New South Wales;  southwestern, central and eastern Victoria, and in Tasmania.


The most widespread, heavy rainfall of the week resulted from an active monsoon trough over northern Australia which brought a humid northerly flow with extensive showers and thunderstorms developing in the Kimberley, across the northern half of the Northern Territory and the Cape York Peninsula.  The associated cloudbands covered much of northern Australia, extending into central and southeastern parts ahead of an inland trough. Moderate to heavy falls were recorded in central and eastern districts of South Australia, parts of eastern Victoria, and Tasmania.
At the beginning of the week, a deep low pressure system located near Kangaroo Island in South Australia moved slowly south-southeast, with an associated rainband producing moderate to heavy rainfall in agricultural districts and southeastern parts of South Australia. A cold front brushed the south coast of Western Australia, generating light to moderate falls.
In the middle of the week, the active monsoon trough over northern parts resulted in showers and thunderstorms in the vicinity of a broad low pressure trough stretching from the Northern Territory to the Northeast Pastoral district in South Australia. A deep low and associated cold front in the Great Australian Bight moved eastwards, with an active band of showers and thunderstorms producing moderate to heavy falls in central and eastern Victoria, northern Tasmania and southern New South Wales.
In the last part of the week, an inland surface trough extended from western Queensland through to eastern New South Wales. A very moist, tropical airflow over eastern Queensland produced moderate to heavy rainfall about parts of the east coast of Queensland and northeastern New South Wales.
Rainfall totals in excess of 200 mm were recorded in the northwestern Top End of the Northern Territory and the far northern tip of the Cape York Peninsula. Isolated falls in excess of 300 mm were recorded about the Darwin–Daly district, including the highest weekly total of 416 mm at Labelle Downs.
Rainfall totals between 100 mm and 200 mm were recorded in central and northwestern parts of the Northern Territory;  the Cape York Peninsula north of Cape Melville; isolated pockets of eastern Queensland; an area of northeastern New South Wales, and northeastern Victoria.
Rainfall totals between 50 mm and 100 mm were recorded in the eastern Kimberley; across much of central and northern areas of the Northern Territory; the Cape York Peninsula and northern interior of Queensland and parts of western and east coast Queensland. Similar totals were recorded in pockets of eastern New South Wales; elevated areas of the Snowy Mountains and Victorian Alps; central Victoria; northern and western Tasmania, and areas of the Northwest Pastoral district and central and southeast of South Australia.
Rainfall totals between 10 mm and 50 mm were recorded in remaining parts of the Kimberley and the south coast of Western Australia; most of the Northern Territory away from the south; the eastern half of South Australia; southwest, central and eastern Victoria and remaining parts of eastern Tasmania. Similar totals were recorded in parts of southern, central and eastern New South Wales, and in northern, eastern and the central interior of Queensland.
Little or no rainfall was recorded in remaining parts of Western Australia, western parts of South Australia, in the south of the Northern Territory, and isolated pockets of southern Queensland and northern New South Wales.

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