Weekly Rainfall Update
for 7 days to 9 am 27 January 2015

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 Theda
(181 mm)
(North Kimberley)
Wiluna
(60 mm)
(Northeast)
Bedford Downs Airstrip
(54 mm)
(East Kimberley)
NT Shoal Bay
(204 mm)
(Darwin-Daly)
Gunn Point
(192 mm)
(Darwin-Daly)
Dum In Mirrie Airstrip
(157 mm)
(Darwin-Daly)
SA Hallett
(14 mm)
(Lower North)
Wudinna Aero
(6 mm)
(Western Agricultural)
Price
(6 mm)
(West Central)
Qld Burleigh Waters Alert
(354 mm)
(Moreton)
Nerang Gilston Rd
(297 mm)
(Moreton)
Seventeen Seventy
(274 mm)
(Port Curtis)
NSW/ACT Port Macquarie Airport
(366 mm)
(Manning)
Bowra Sugarloaf
(280 mm)
(Lower North Coast)
Abbotsford
(259 mm)
(Metropolitan)
Vic Genoa (Fools Haven)
(57 mm)
(East Gippsland)
Wodonga
(47 mm)
(Lower Northeast)
Mount Buller
(45 mm)
(Upper Northeast)
Tas Mount Read
(63 mm)
(West Coast)
Queenstown
(43 mm)
(West Coast)
Lake Margaret
(38 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 the Northern 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 27 January 2015, rainfall was recorded in Western Australia, Northern Territory, across the east of the eastern states, and western Tasmania.

During the week, a slow-moving low pressure system developed over southwestern Queensland in a surface trough lying through eastern Australia. An unstable moist air mass to the east of the trough and onshore flow combined with the low to produce thunderstorms and heavy showers in eastern to central Queensland and northeastern New South Wales. Extremely heavy falls were observed in southeastern Queensland. Flood warnings were issued for rivers along the east coast, and for inland rivers near Birdsville and Bedourie as water travelled downstream. Flash flooding occurred in the Brisbane metropolitan area, also on the north and central coasts in New South Wales.

The southward extension of the surface trough, combined with an approaching cold front later in the week to bring showers to Victoria, central to eastern New South Wales and western Tasmania.

In northern Australia, the trough combined with onshore flow to bring thunderstorms and showers to the Top End early in the week, and more broadly between the northern interior of Western Australia and the Cape York Peninsula, in Queensland, later in the week.

Rainfall totals in excess of 200 mm were recorded in parts of Queensland’s east coast, south of Rockhampton and on the Gold Coast, also on the north and central coasts in New South Wales. The highest weekly total was 366 mm at Port Macquarie Airport, in New South Wales.

Rainfall between 50 mm and 200 mm was recorded in much of the Top End of the Northern Territory and between the Cape York Peninsula and northeastern New South Wales. There was isolated rainfall of this amount, in and south of the Kimberley in Western Australia, and in East Gippsland in Victoria. The west coast of Tasmania recorded weekly rainfall totals above 50 mm.

Rainfall between 10 mm and 50 mm surrounded areas of higher falls and was also recorded in the Kimberley, Pilbara and Goldfields districts in Western Australia, the north of the Northern Territory, northern and southeastern Queensland, eastern to central New South Wales and parts of eastern Victoria and western Tasmania.

South Australia, most of Western Australia, the southern half of the Northern Territory and the west of the eastern States recorded little or no rainfall for the week.

Impact of recent rainfall on deficits

The Drought Statement issued on 7 January, discusses rainfall deficits over Australia for the 6-month (July 2014 to December 2014), 13-month (December 2013 to December 2014) and 27-month (October 2012 to December 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 6-month, 13-month and 27-months ending 27 January 2015. Only the areas that experienced serious or severe rainfall deficiencies for the corresponding period ending December 2014 are analysed, the rest of the map is masked in grey shading.

Rainfall to date for 6-month period
Drought Period 1- click on map for larger image

Rainfall to date for 13-month period
Drought Period 2- click on map for larger image

Rainfall to date for 27-month period
Drought Period 3 - click on map for larger image



Rainfall for the period 1 July 2014 to 27 January 2015

Rainfall in the past week has lessened rainfall deficiencies in parts of the Cape York Peninsula in Queensland. Rainfall deficiencies remain across much of the Cape York Peninsula in Queensland, on the west coast of Western Australia, across the south of South Australia, western Victoria and southern New South Wales. Much of the Cape York Peninsula and central southern South Australia have received less than 60% of average rainfall for the period to 27 January, rising to 70% to 80% across southeast South Australia and western Victoria.

Rainfall for the period 1 December 2013 to 27 January 2015

Rainfall in the past week has also eased deficiencies at the 13-month period for parts of southeastern Queensland and northeastern New South Wales. Western Victoria, southeastern Queensland and northeastern New South Wales have received less than 70% to 80% of average rainfall for the period ending 27 January.

Rainfall for the period 1 October 2012 to 27 January 2015

Slight easing of rainfall deficiencies for the 27-month period was seen in inland central and southern Queensland. Areas of Queensland, northern inland New South Wales, northeast South Australia and the southeast of the Northern Territory have received less than 70% of average rainfall for the period to 27 January. Deficiencies also persist in western Victoria and parts of southeastern South Australia where rainfall has generally been less than 80% of average 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.

 

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