Weekly Rainfall Update

Weekly Rainfall Update
for 7 days to 9 am 29 July 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 Karnet
(72 mm)
(Central Coast
Windy Harbour
(72 mm)
(South Coast)
Dwellingup
(65 mm)
(South Coast)
NT Palm Valley
(4 mm)
(Alice Springs)
Kulgera
(2 mm)
(Alice Springs)
Mt Cavenagh
(2 mm)
(Alice Springs)
SA Piccadilly (Woodhouse)
(66 mm)
(East Central)
Uraidla
(62 mm)
(East Central)
Lenswood Research Centre
(62 mm)
(East Central)
Qld Daradgee
(64 mm)
(Herbert)
South Johnstone
(57 mm)
(Herbert)
Tree House Creek
(52 mm)
(Herbert)
NSW/ACT Denman (Palace Street)
(36 mm)
(Hunter)
Cassilis (Thistledale)
(35 mm)
(Central Tablelands)
Pine Ridge (Billabong)
(35 mm)
(Northwest Slopes)
Vic Mount Hotham
(53 mm)
(Upper Northeast)
Grampians (Mount William)
(51 mm)
(South Wimmera)
Wyelangta
(45 mm)
(West Coast)
Tas Mount Victoria
(99 mm)
(Northern)
Mount Barrow
(81 mm)
(Northern)
Maatsuyker
(77 mm)
(Southern)



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 29 July 2014, rainfall was recorded mainly in southern Western Australia, southern South Australia, Victoria, Tasmania, eastern New South Wales and parts of coastal Queensland.

At the start of the week, a cold front crossed the southwest coast of Western Australia, while another cold front and surface trough associated with a low pressure system in the Great Australian Bight tracked across South Australia. These systems brought isolated moderate rainfall totals along the southern coast of Western Australia. Moderate totals were also recorded along South Australia's exposed west coast, southeastern South Australia and western Victoria.

Another strong cold front approached the southwest of Western Australia mid-week, bringing rain to the southern coast. A low pressure system in Bass Strait extended a surface trough over eastern Australia bringing rain to the coast of central and northeastern New South Wales and adjacent inland regions, northeastern Victoria and northern Tasmania.

Frontal rain fell in the South West Land Division of Western Australia and in western Tasmania at the end of the week, as a series of weak surface troughs crossed the Southern Ocean.


Falls in excess of 50 mm were recorded in southwest Western Australia, and in northern and southwestern Tasmania with the highest weekly rainfall total of 99 mm recorded at Mount Victoria in Ta
smania.

Rainfall totals between 25 mm and 50 mm were recorded in southwest Western Australia, isolated locations in coastal South Australia, southern and northeastern Victoria, and larger areas in western and northern Tasmania, northeastern New South Wales, and the northeast Queensland coast.


Rainfall totals over 10 mm were recorded in northeast and southeast Queensland,  northeastern New South Wales, parts of northeast and southwestern Victoria, most of coastal South Australia, and along the south and southwest coasts of Western Australia.


The Northern Territory, most of northern and inland Queensland, northwest New South Wales, the northern half of South Australia and northern Western Australia recorded little or no rainfall for the week.

Impact of recent rainfall on deficits

The Drought Statement issued on 29 July, discusses rainfall deficits over Australia for the 7-month (December 2013 to June 2014) and the 21-month (October 2012 to June 2014) period ending 30 June 2014. The rainfall deficit maps are available for the 7-month and 21-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 7-month and 21-months ending 29 July 2014. Only the areas that experienced serious or severe rainfall deficiencies for the corresponding period ending 30 June 2014 are analysed, the rest of the map is masked in grey shading.

Rainfall to date for 7-month period
Drought Period 1- click on map for larger image

Rainfall to date for 21-month period
Drought Period 2- click on map for larger image


Rainfall for the period December 2013 to 29 July 2014

For the 7-month period commencing December 2013, serious to severe rainfall deficiencies remain in place over southeastern Queensland, northeastern New South Wales, along the southern coast of Western Australia and parts of southeastern Tasmania. Deficiencies in most areas remain largely unchanged compared to last week, with some slight relief in deficiencies in northern New South Wales. 

Most of the coastal parts of northeastern New South Wales and smaller areas of eastern Queensland have received less than 50% of their average rainfall for similar periods ending 29 July 2014.

Rainfall for the period October 2012 to 29 July 2014

For the 21-month period commencing October 2012, serious to severe deficiencies (lowest 10% to 5% of records) remain in an area spanning much of Queensland away from the eastern coast and an area of northern New South Wales inland of the Great Dividing Range.Compared to last week, rainfall deficiencies remain largely unchanged, except some slight relief of deficiencies occurred over southern Queensland and in a region near Shark Bay in Western Australia.

Areas of northeastern South Australia, the southeast of the Northern Territory, inland northern Queensland, and southeastern Queensland and northeastern New South Wales west of the Great Dividing Range have received less than 60% of the average rainfall for similar periods ending 29 July 2014.

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