Weekly Rainfall Update

Weekly Rainfall Update
for 7 days to 9 am 16 September 2014

The Weekly Rainfall Update provides a detailed analysis of the rainfall recorded across the country during the past week. The page is updated every Tuesday afternoon, for the seven days ending that day. The update includes a rainfall map, a table of the highest falls recorded for the week by state, some commentary and an analysis of the impact of recent rainfall on parts of Australia experiencing rainfall deficits.

Table of highest weekly totals

State Highest 2nd Highest 3rd Highest
WA Huntly
(26 mm)
(South Coast)
Nannup
(8 mm)
(South Coast)
Warne Glen
(8 mm)
(South Coast)
NT Nil rainfall recorded

SA Lenswood
(24 mm)
(East Central)
Heathfield Works
(19 mm)
(East Central)
Gumeracha
(16 mm)
(East Central)
Qld Booroondarra
(26 mm)
(Central Highlands)
Somerby
(24 mm)
(Central Highlands)
Glencoe
(22 mm)
(Central Highlands)
NSW/ACT Thredbo Village
(58 mm)
(Snowy Mountains)
Thredbo
(51 mm)
(Snowy Mountains)
Perisher
(51 mm)
(Snowy Mountains)
Vic Mount Hotham
(80 mm)
(Upper Northeast)
Falls Creek
(65 mm)
(Upper Northeast)
Harrietville
(49 mm)
(Upper Northeast)
Tas Mount Read
(120 mm)
(West Coast)
Zeehan
(77 mm)
(West Coast)
Strathgordon
(64 mm)
(West Coast)

State weekly rainfall bulletins (updated daily):

Northern WA | Southern WA | NT | Qld. | NSW/ACT | Vic. | SA | Tas.

The table above lists the highest rainfall totals for each state and territory for the past week. These are based on real-time rainfall reports, and only limited quality control has been performed on the data. Rainfall district names are given in parentheses. Please also note that some station names have been shortened by taking away words such as post office and airport. Map of the Bureau of Meteorology rainfall districts.

In creating the weekly rainfall map, the rainfall recorded at sites across Australia is analysed onto grids and displayed as a map. In data-rich areas, such as southeast Australia, or in regions with strong rainfall gradients, such as across mountain ranges, 'data smoothing' may occur, resulting in gridpoint values differing from the exact rainfall amounts measured at the contributing stations.

Commentary on recent rainfall

For the week ending 16 September 2014, rainfall was recorded in central and southeast Queensland, northeastern and southern New South Wales, eastern Victoria and Tasmania.

At the start of the week a complex area of low pressure passed to the south of Tasmania with an associated cold front and troughs crossing South Australia, inland New South Wales, Victoria and Tasmania. Moderate rainfall totals were recorded in Victoria's northeast and Alpine areas and in southern New South Wales, with some lighter falls recorded in coastal South Australia and heavier falls in western Tasmania from the following trough.

Around the middle of the week, a low pressure system and surface trough over inland Queensland brought light to moderate rainfall to the central Queensland coast and adjacent inland districts, and the following day to northeast coast of New South Wales.

Other cold fronts and surface troughs crossed southern Australia during the middle and end of the week, but were generally weak bringing only very light rainfall.

Rainfall totals over 50 mm were reported in the west coast of Tasmania, in the Victorian Alps and Snowy Mountains in New South Wales. The highest weekly rainfall total of 120 mm was recorded at Mount Read in Tasmania.

Rainfall totals between 25 mm and 50 mm were recorded in the west coast of Tasmania, eastern Victoria and in elevated parts of southern New South Wales.

Rainfall totals between 10 mm and 25 mm were recorded in northern Tasmania, remaining parts of eastern Victoria and the Otways, small areas of the Mid North District and Mt Lofty Ranges of South Australia near the coast, most of the southeastern quarter of  New South Wales west of the Great Dividing Range, northeastern New South Wales extending across into southeastern Queensland, and in the Central Highlands District of Queensland.


The Northern Territory, most of Western Australia and South Australia away from coastal areas, the western half of Victoria, southeastern Tasmania, inland  New South Wales and remaining parts of Queensland recorded
little or no rainfall for the week.

Impact of recent rainfall on deficits

The Drought Statement issued on 5 September 2014, discusses rainfall deficits over Australia for the 9-month (December 2013 to August 2014) and the 23-month (October 2012 to August 2014) period ending 31 August 2014. The rainfall deficit maps will be available for the 9-month and 23-month period 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 9-month and 23-months ending 16 September 2014. Only the areas that experienced serious or severe rainfall deficiencies for the corresponding period ending 31 August 2014 are analysed, the rest of the map is masked in grey shading.

Rainfall to date for 9-month period
Drought Period 1- click on map for larger image

Rainfall to date for 23-month period
Drought Period 2- click on map for larger image


Rainfall for the period 1 December 2013 to 16 September 2014

For the 9-month period commencing December 2013, serious to severe deficiencies (lowest 10% to 5% of records) are in place across much of northeastern New South Wales and southeastern Queensland, with isolated parts of central Queensland, southeastern Tasmania and Southwest Land Division and the south coast of Western Australia also experiencing deficiencies.

Deficiencies have generally changed little following last week's rainfall. These areas in the west and the east,  have recorded less that 60% of their average rainfall for the period.

Rainfall for the period October 2012 to 16 September 2014

For the 23-month period commencing October 2012, serious to severe deficiencies (lowest 10% to 5% of records) remain in a large area of inland Queensland away from the eastern coast and also in smaller areas in adjacent parts of the Northern Territory and South Australia, and in an area inland of the Great Dividing Range extending from southern Queensland into northern New South Wales. 

Compared to last week, deficiencies generally remain similar with parts of inland and southern Queensland and adjacent New South Wales, as well as a small area along the west coast of Western Australia  have received less than 60% of average rainfall for the period.

Please Note: The Australian Bureau of Meteorology is not responsible for drought declarations. Drought declarations are the responsibility of the State Governments, and take account of other factors in addition to recent rainfall patterns. Some links to state government departmental web sites are given in the right hand column.

Product Code: IDCKGRWAR0