Weekly Rainfall Update

Weekly Rainfall Update
for 7 days to 9 am 22 April 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 Cape Leeuwin
(14 mm) 
(South Coast)
North Walpole
 (10 mm)
(South Coast)
Windy Harbour
(10 mm)
(South Coast)
NT Yirrkala Tropical Gardens
(142 mm)
Gove Airport
(139 mm)  
(102 mm)
SA Mount Schank (Jethia)
(16 mm)
(Lower Southeast)
Mount Gambier
(15 mm)
(Lower Southeast)
(10 mm)
(Lower Southeast)
Qld Daintree Village
(180 mm)
Horn Island
(156 mm)
(North Peninsula)
(108 mm)
(North Peninsula)
NSW/ACT Forster
(82 mm)
Nelson Bay
(58 mm)  
Careys Peak
(45 mm)  
Vic Wyelangta
(32 mm)
(West Coast)
(31 mm)
(West Coast)
Haines Junction
(27 mm)
(West Coast)
Tas Mount Victoria
(80 mm)
Mount Read
(73 mm)
(West Coast)
Mount Barrow
(69 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 22 April 2014, rainfall was recorded in the tropical north, most of eastern Queensland, coastal southeastern Australia, Tasmania and southwest Western Australia. A series of cold fronts swept through the southern states during the week, along with thunderstorm activity in the northern tropics. 

Ex-tropical cyclone Ita was located in the southern Coral Sea and transitioned into a vigorous low pressure system as it moved into the Tasman Sea. Isolated showers and thunderstorms over Cape York Peninsula generated some locally heavy falls. A pair of cold fronts moved through the Great Australian Bight and passed over the southeast, bringing mostly light falls to the exposed western coasts of Victoria and Tasmania. Near the end of the week, a surface trough north of the Top End extended through the central interior of Queensland, and caused an area of active thunderstorms and showers in the northeast coast of the Northern Territory, the Gulf Country and northern Cape York Peninsula. 

Rainfall totals over 100 mm were recorded around Nhulunbuy in eastern Arnhem Land in the Northern Territory and other isolated areas of the tropical north, with the highest weekly total at Daintree Village in Queensland with 180 mm. Falls between 50 mm and 100 mm were recorded in western Tasmania, in the far northeast of Arnhem Land, and the Peninsula, Gulf Country and north tropical coast of Queensland. Falls between 10 mm and 50 mm were recorded in areas surrounding higher falls in northern tropical Australia, parts of the Queensland and New South Wales interior, central east coast of New South Wales, southwest Victorian coast, most of western Tasmania and a small area on the southwest coast of Western Australia.

Most of Western Australia, South Australia, Northern Territory, southwestern Queensland, New South Wales west of the Great Dividing Range and inland Victoria received little or no rainfall.

Impact of recent rainfall on deficits

The Drought Statement, issued on 4 April, discusses rainfall deficits over Australia for the 18-month (October 2012 to March 2014) and 24-month (April 2012 to March 2014) periods ending 31 March 2014. The rainfall deficit maps for 18-month, 24-month 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 18-month and 24-month periods ending 22 April 2014. Only the areas that experienced serious or severe rainfall deficiencies for the corresponding period ending 31 March 2014 are analysed, the rest of the map is masked in grey shading.

Rainfall to date for 18-month period Rainfall to date for 24-month period
Drought Period 1 - click on map for larger image Drought Period 2 - click on map for larger image

Rainfall for the period 1 October 2012 to 22 April 2014

Rainfall deficiencies for the period commencing October 2012 remain similar to last week. Slight relief was seen from rain through eastern Queensland and adjacent northern New South Wales but deficiencies in northeastern South Australia remain similar. Serious to severe deficiencies persist in the southeast of the Northern Territory, western New South Wales, Victoria and a small area in Western Australia near Shark Bay.

Areas have received less than 60% of the average rainfall for similar periods ending 22 April in southeastern Northern Territory, northeastern South Australia, inland northern Queensland, as well as areas of eastern Queensland and northeastern New South Wales west of the Great Dividing Range and an area on the coast of Western Australia near Shark Bay.

Rainfall for the period 1 April 2012 to 22 April 2014

Rainfall deficiencies for the period commencing October 2012 remain similar to last week despite slight relief in northern New South Wales from this week's rain. Deficiencies persist in inland Queensland, the southeast of the Northern Territory, South Australia, western New South Wales, Victoria and on the coast of Western Australia near Shark Bay.

Most of the Northeast Pastoral District of South Australia and adjacent parts of Queensland, the southeast of the Northern Territory and scattered smaller areas of inland northern and southern Queensland and northern New South Wales have received less than 60% of the average rainfall for similar periods ending 22 April, along with an area along the coast of Western Australia near Shark Bay.

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: IDCKGFWA00