FURTHER heavy rain this week is likely to cause havoc with flooding across New South Wales and Queensland expected to spread across five states.
The Weather Channel Meteorologist Tom Saunders said the rain will extend across the eastern states this week.
"We are expecting another 50mm of rain over most of eastern Australia," he said.
"The rain will begin in South Australia today before spreading east through Victoria, Tasmania and western New South Wales on Wednesday and reaching central New South Wales and Queensland from Thursday onwards."
Mr Saunders said it could bring a second flood peak for some areas.
“For Queensland and New South Wales this second burst of rain means many already flooded regions will see a second flood peak with the potential for higher levels of flooding in several valleys.
"The upcoming rain should also cause widespread flooding to develop through Victoria and agricultural parts of South Australia."
Australia has recorded its wettest spring on record following heavy and consistent rain during the last two weeks.
Mr Saunders said this rain had run straight into river systems, resulting in widespread flooding.
“In Queensland the flooding has been major across much of the Central Highlands and around Windorah and St George," he said.
"In New South Wales major flooding has affected Wagga Wagga, Narromine and Coonamble during the past 24 hours."
“By the end of the week five states could have flooding. There is no doubt that this is one of the most significant rain events of the past few decades."
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