Photos of the flooding across Victoria, Tasmania and NSW

While conditions are expected to ease this weekend, flood peaks are yet to be reached in many regions with thousands of residents evacuated.

In Victoria, areas north of the Great Dividing Range were among the heaviest hit by the rain through Wednesday and Thursday and more central areas also had significant falls, according to the Bureau of Meteorology.

Between 9am and 6pm on Thursday, Pyalong recorded 62 millimetres and Avalon Station saw 60mm.

While Strathbogie North also recorded a 58mm dump on Thursday, it had copped 187mm since Wednesday morning.

While the weather is starting to clear on Friday, volumes of water are yet to make their way downstream through river systems.

In NSW the focus is on the state's Central Western town of Forbes where the The Lachlan River was expected to reach a major flood peak of 10.6 metres, prompting the emergency warnings for Forbes.

While in Tasmania, residents are being warned there is a long way to go before rivers and catchments reach their peak.

Intense heavy rain that began on Wednesday night is expected to ease in the early hours of Friday, but authorities are urging people to stay on high alert.

- with Australian Associated Press