Flash flooding is likely in Melbourne as a low-pressure system dumps up to 150mm of rain on the city between Friday and Sunday, while falls in Victoria’s northeast could top 300mm.
The storms will develop in the far west late on Thursday before extending across the rest of the state on Friday.
The Bureau of Meteorology has called it the “most significant rain event for many years” and issued a series of weather warnings as the big wet approaches.
“This is a very, very big weather event, we are in uncharted territory,” senior meteorologist Scott Williams told reporters on Wednesday.
More than 100mm of rain could fall in a band encompassing capitals from Brisbane all the way down to Hobart with meteorologists forecasting of a “month’s worth of rain in just a few days for some regions”.
Almost 30mm has fallen in Brisbane yesterday and a severe weather warning for thunderstorms is in place for much of the state’s coast.
In some areas 200mm of rain could wash down in the next few days, almost certain to lead to flooding.
