Weekly Rainfall Update

Weekly Rainfall Update
for 7 days to 9 am 25 November 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 Kununurra
(80 mm)
(East Kimberley)
(49 mm)
(East Kimberley)
Mount Barnett
(39 mm)
(West Kimberley)
NT Majestic Orchids
(78 mm)
Keep River Rangers
(48 mm)
Batchelor Airport
(44 mm)
SA Myponga
(34 mm)
(East Central)
(30 mm)
(East Central)
(28 mm)
(East Central)
Qld Childers South
(94 mm)
(Port Curtis)
(87 mm)
Mount Wallaby
(77 mm)
(Port Curtis)
NSW/ACT Bangalow (Fowlers Lane)
(129 mm)
(Upper North Coast)
Boat Harbour (Rous River)
(59 mm)
(Upper North Coast)
(58 mm)
(Upper North Coast)
Vic Hurdle Creek
(51 mm)
(Lower Northeast)
(50 mm)
(Lower Northeast)
(44 mm)
(Lower Northeast)
Tas Mount Read
(79 mm)
(West Coast)
(52 mm)
(West Coast)
Lake Margaret
(46 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 to 25 November 2014, rainfall was recorded in all States and Territories.

At the beginning of the week, a surface trough extended from northwest Australia through inland Queensland into northeastern New South Wales, triggering thunderstorms and showers. Moderate to heavy falls were recorded along the coast between Rockhampton, Queensland, and Tweed Heads, New South Wales. Areas of low pressure also extended from inland Western Australia towards a low pressure system in the Southern Ocean. Generally light rainfall was recorded in areas along the southern coast and Tasmania early during the week as the trough system moved into eastern Australia.

Later in the week, a cloudband extended along a trough from the Kimberley district in Western Australia, south of the Gulf of Carpentaria and into northeastern New South Wales. Isolated showers and thunderstorms were recorded along the line of the cloudband.

From the 22nd, a trough formed across southern Australia, extending from the Pilbara coast to the southeast, and bringing light falls to much of central Australia and the southeast.

A cold front brought light falls to the southwest of Western Australia towards the end of the week before intensifying and moving into the southeast. A trough which lay around the western and northern coast extended through eastern Australia as a pre-frontal trough. Moderate to heavy rainfall was recorded in western Tasmania, much of Victoria and southern New South Wales, with lighter falls in eastern New South Wales. Thunderstorms along the trough brought moderate totals to parts of western Queensland, the Top End and northern Western Australia.

Rainfall totals in excess of 25 mm were recorded in western Tasmania, along the southeast coast of Queensland, in the South West Slopes district of New South Wales, parts of eastern Victoria, and isolated areas in pastoral South Australia and between western Queensland and the Kimberley. Individual higher totals were common, with the highest weekly total 129 mm at Bangalow in New South Wales.

Rainfall totals between 10 mm and 15 mm were recorded in far southwest Western Australia, areas of the Kimberley, Northern Territory, western Queensland, southeastern South Australia, northeast and southern New South Wales, central and southwestern Victoria, northern Tasmania and surrounding higher falls in other parts of the mainland southeast.

Remaining parts of Western Australia, areas of the Northern Territory, northeastern and inland southern Queensland, northwest New South Wales, northwest Victoria, and across the north and west of South Australia recorded little or no rainfall for the week.

Impact of recent rainfall on deficits

The Drought Statement issued on 6 November 2014, discusses rainfall deficits over Australia for the 4-month (July 2014 to October 2014), 11-month (December 2013 to October 2014) and 25-month (October 2012 to October 2014) periods. The rainfall deficit maps will be 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 4-month, 11-month and 25-months ending 25 November 2014. Only the areas that experienced serious or severe rainfall deficiencies for the corresponding period ending 31 October 2014 are analysed, the rest of the map is masked in grey shading.

Rainfall to date for 4-month period
Drought Period 1- click on map for larger image

Rainfall to date for 11-month period
Drought Period 2- click on map for larger image

Rainfall to date for 25-month period
Drought Period 3 - click on map for larger image

Rainfall for the period 1 July 2014 to 25 November 2014

Serious to severe deficiencies (lowest 10% to 5% of records) are in place across large areas of southern New South Wales and northern and western Victoria, extending through southern South Australia to northwest South Australia. Much of the inland southeast has recorded less than 60% of their average rainfall for the period.
Large areas of short-term rainfall deficiencies are also present in western Queensland and the Northern Territory. Some small areas of short-term deficiencies are also present in western parts of Western Australia and southeast Queensland into New South Wales.

Rainfall deficiencies have eased somewhat since last week across most regions, particularly in western Victoria and southern South Australia.

Rainfall for the period 1 December 2013 to 25 November 2014

Serious to severe deficiencies (lowest 10% to 5% of records) are in place across a large area of northeastern New South Wales and southeastern Queensland, western Victoria and parts of eastern Tasmania. Much of these areas have recorded less than 70% of their average rainfall for the period.

Rainfall in the last week has eased deficiencies slightly in southeastern Queensland and western Victoria.

Rainfall for the period 1 October 2012 to 25 November 2014

Serious to severe deficiencies (lowest 10% to 5% of records) remain in a large area of inland Queensland away from the eastern coast and in smaller areas in adjacent parts of the Northern Territory, South Australia and northern New South Wales inland of the Great Dividing Range. Much of these areas have received less than 70% of average rainfall for the period. Deficiencies are also evident in much of inland western Victoria, extending across the border into part of southeastern South Australia, and in an area of the southern coastal Gascoyne around Shark Bay in Western Australia.

Compared to last week, there was a slight decrease in deficiencies in far southwest Queensland and across the border into northeastern South Australia. Elsewhere, there was very little change in deficiencies.

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