Weather

Weekly rainfall wrap + 14 day rain outlook, 23 May 2018

Bureau of Meteorology, May 23, 2018

 

 

For today’s 14-day rainfall outlook – scroll to bottom of article

A westerly flow and a series of embedded cold fronts produced moderate falls in southeastern Australia, while moist onshore flow brought showers and moderate fall to parts of Queensland’s east coast.

Past seven days: At the beginning of the week, a fast-moving cold front and surface trough tracked across southeastern Australia, with light falls reported in parts of southern South Australia, central and eastern Victoria, and western Tasmania. In the north, widespread showers occurred along coastal and adjacent inland parts of eastern Queensland in response to an upper-level disturbance and moist onshore southeasterly winds.

A high pressure system located over the Bight directed a west to southwesterly flow and brought moderate falls to western Tasmania.

During the middle of the week, the westerly flow and a series of embedded cold fronts produced light falls in southeastern Western Australia, southeastern South Australia, southwest Victoria, and moderate falls in western Tasmania and parts of the exposed southern coast of Victoria.

At the end of the week a trough and cold front produced thick cloud over southeastern Australia. Moderate falls were recorded in southern Victoria and western Tasmania, with light falls extending into southeastern South Australia and into central Victoria.

Moist onshore flow continued to produce showers about the north tropical coast of Queensland for the rest of the week.

Rainfall totals in excess of 100 mm were recorded in in the West Coast (Mountain Region) of Tasmania, including the highest recorded weekly total of 300 mm at Mount Read. Due to a network outage, Mount Read’s true total is presently unknown but certainly higher.

Rainfall totals between 50 mm and 100 mm were recorded in western Tasmania and around Innisfail on the north tropical Queensland coast.

Rainfall totals between 25 mm and 50 mm were recorded in southwestern Victoria between Warrnambool and Cape Otway, and across much of West and South Gippsland in the east of that State, in an area near Adelaide in South Australia, and about Queensland’s north tropical coast between Cairns and Tully.

Rainfall totals between 10 mm and 25 mm were recorded in southeastern Western Australia near Eucla; about the Mount Lofty Ranges, Kangaroo Island and Lower South East districts in South Australia; and surrounding higher falls across much of southern Victoria and in western Tasmania.

Little or no rainfall was recorded in Western Australia, the Northern Territory, South Australia away from the southeast, northwestern and central northern Victoria, and parts of East Gippsland, northeastern Tasmania, New South Wales, and Queensland away from the east coast and adjacent inland districts.

Highest weekly totals list and map

New South Wales and Australian Capital Territory

11 mm Ballina Airport AWS, Cabramurra Smhea Aws

6 mm Evans Head RAAF

Victoria

77 mm Moe South

58 mm Mount Baw Baw

57 mm Ferny Creek

Queensland

104 mm Innisfail

76 mm Point Lookout, Innisfail Aerodrome

Western Australia

13 mm Eucla

6 mm Walpole Forestry

5 mm Red Rocks Point

South Australia

51 mm Adelaide (Glen Osmond)

46 mm Brownhill Creek, Burnside

Tasmania

262 mm Lake Margaret Dam

300 mm Mount Read

206 mm Lake Margaret Power Station

Northern Territory

2 mm Gove Airport, Alcan Minesite

0.4 mm The Chase

* at least 300 mm, equipment outage being investigated

More weekly rainfall totals:

Source: BOM

 

Rainfall outlook:

Source: Weatherzone

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