Weekly Rainfall Update
For the week to 19 November 2019, rainfall was recorded in isolated parts of the northern tropics, from the central to southeast coasts of Queensland, parts of southern central Victoria, and the western half of Tasmania.
At the start of the week, a series of cold fronts tracked across parts of southern Victoria and Tasmania, with light to moderate falls reported in southwest and southern central Victoria. The series of cold fronts produced a strong and gusty west to southwesterly flow, which persisted for the entire week across Tasmania, and produced moderate to heavy falls in the western half of that State.
A broad surface trough was located along the west, north and east coasts of the continent. From the middle of the week, isolated thunderstorms developed along the trough, with mainly light falls over near-coastal parts of Gulf Country and Top End in the Northern Territory, the Kimberley in Western Australia, and around the central Queensland coast.
In the last part of the week, a surface trough extended from the northwest to the southeast of Queensland. Showers and thunderstorms developed in a moist air mass to the east of the trough, with scattered light falls over the northwest, Central Highlands and Capricornia districts. The convective activity contracted to the Wide Bay and Burnett District, then to the southeast of Queensland and parts of the northeast coast of New South Wales at the end of the week.
Thunderstorms produced isolated moderate falls and large hail in areas of the Sunshine Coast and northern suburbs of Brisbane, but mainly light rainfall totals were recorded in the remaining areas of the southeast Queensland coast, and northeastern New South Wales.
Rainfall totals in excess of 50 mm were recorded across the western half of Tasmania. Areas in the West Coast District reported falls in excess of 100 mm, including the highest weekly total of 224 mm at Mount Read.
Rainfall totals in excess 25 mm were recorded in a small area of the Darwin–Daly District in the Northern Territory.
Rainfall totals of less than 25 mm were recorded in parts of the Kimberley and southwest interior of Western Australia; near-coastal parts of the Top End in the Northern Territory and the Gulf Country; from the central to southeast coasts and adjacent inland districts of Queensland, and pockets of the east coast of New South Wales. Similar totals were recorded from southwest to southern central Victoria, and far southeastern South Australia.
Little or no rainfall was recorded in remaining parts of country.
Impact of recent rainfall on deficits
Rainfall deficits over Australia for 3-month (August-October 2019), the -10-month (January–October 2019) and 19-month (April 2018– October 2019) periods are discussed in the Drought Statement issued on 8 November 2019.
Rainfall deficit maps are available for these periods as well as for standard periods. The maps below show the percentage of mean rainfall that has been received for the rainfall deficit period for the 3-month, 10-month and 19-month periods, extended to the week ending 19 November 2019.
Rainfall for the period 1 August to 19 November 2019
Serious to severe rainfall deficiencies at a shorter timescale of 3-month (August-October 2019) have emerged over large areas of southern Australia.
Serious to severe rainfall deficiencies extend across the rest of New South Wales inland of the ranges; across northern Victoria and East Gippsland; across much of southern Queensland and parts of the central north of that State; northern Tasmania; large areas of western, northern, and eastern South Australia away from the northeast and the southeast; large areas of Western Australia between the southern Pilbara and Gascoyne, extending into the western Interior, as well as parts of the south and along the South Australian border; and for inland parts of the western Top End in the Northern Territory.
Rainfall during the past week had very little effect on rainfall deficiencies for those affected areas.
Affected areas of New South Wales and adjacent southern Queensland, northern Queensland, and South Australia have mostly received less than 40% of average rainfall for the period, except for an area around the Upper Darling which has received between 50% and 100% of average rainfall.
Affected areas of Victoria, Tasmania, and Western Australia have mostly received between 40% and 70% of average rainfall for the period, dropping to less than 40% in the northern South West Land Division and Gascoyne in Western Australia.
Rainfall for the period 1 January to 19 November 2019
In New South Wales, serious to severe rainfall deficiencies extend across most of the North West Slopes and Northern Tablelands, along with coastal areas from the Hunter northwards. Areas of deficiencies also exist across the southern coast of New South Wales, and between the New South Wales Tablelands and Central District in Victoria, as well as in inland to coastal central Gippsland. In Queensland, serious to severe rainfall deficiencies affect the greater southeast, the eastern Maranoa, and the Capricornia District.
Serious to severe rainfall deficiencies are also evident across much of the central and southern Northern Territory away from the Queensland border; most of South Australia except parts of the southeast, western Eyre Peninsula, and far northeast; across western New South Wales and the Mallee in Victoria. In Western Australia serious to severe rainfall deficiencies affect most of the interior of that State, nearly all areas along the south coast and most of the Southwest Land Division, and parts of the Pilbara and Kimberley.
Deficiencies persist in eastern Tasmania, and have expanded along the northeast coast.
Rainfall during the past week has had very little effect on rainfall deficiencies for the period starting January 2019.
Affected areas of northeastern and western New South Wales and southeastern Queensland have generally received less than 50% of average rainfall for the period, dropping to less than 30% of average for some areas along the border and in the Northwest Slopes and Plains District in New South Wales.
Affected areas of the South West Land Division and Kimberley in Western Australia have mostly received between 50% and 80% of average rainfall, while affected areas in agricultural South Australia, and the scattered areas affected in southeastern New South Wales, Victoria, and Tasmania have mostly received at least 60% of average rainfall.
Through Australia's interior, areas affected by serious of severe rainfall deficiencies in pastoral South Australia, the Northern Territory, and Western Australia's Interior, southeast, and northwest have largely received less than 40% of average.
Rainfall for the period 1 April 2018 to 19 November 2019
Serious to severe rainfall deficiencies are in place for this longer timescale across much of the northern half of Western Australia, except parts of the inland Kimberley, the central and southwestern Pilbara, and northeastern Gascoyne; across much of the South West Land Division in Western Australia; much of the Northern Territory except much of the Top End and eastern border; most of South Australia, except parts of the north, southwest, western Eyre Peninsula, and the southeastern tip; southern and southeastern Queensland, extending across much of the Central Highlands and Capricornia districts; most of New South Wales, except some pockets of the central coast, far southeast, and inland west; across northern Victoria and most of the eastern half of the State except parts of West and South Gippsland; and in Tasmania's east and north coast.
Rainfall during the past week has had very little effect on rainfall deficiencies for the period starting April 2018.
Affected areas through the interior of Australia have generally received less than 50% of average rainfall for this period. Affected areas of southern and eastern New South Wales and southeastern Queensland have generally received less than 60% of average rainfall, dropping to 30 to 40% in part of the inland slopes and plains region along the New South Wales—Queensland border.
Affected areas of southeastern New South Wales, Victoria, southern South Australia, Tasmania, and the South West Land Division in Western Australia have mostly received between 60% and 80% of average.
Affected areas of the Kimberley in Western Australia have mostly received between 40% and 60% of average rainfall for the period.
Product code: IDCKGRWAR0