2010 Victorian floods

The 2010 Victorian floods were a widespread series of flood events across the state of Victoria, Australia. The floods, which followed heavy rain across southeastern Australia in early September 2010, caused the inundation of about 250 homes, hundreds of evacuations and millions of dollars of damage. Weather warnings were initially issued for Victoria on Thursday 2 September and rain began to fall on the Friday, continuing through the weekend to Tuesday. Heavy rain fell in most regions of the state, particularly at higher altitudes in the state's west and northeast, flooding the upper reaches of many of Victoria's major rivers. A state of emergency was declared with State Emergency Service crews arriving from Queensland, South Australia and Tasmania. The floods proceeded an extensive drought period that had effected the entirety of Australia.

While the flooding was widespread, swelling many major rivers, little flash flooding occurred in urban areas. Melbourne remained relatively unaffected, though several large regional towns, such as Ballarat, Benalla and others, experienced urban flooding.

The heavy rainfall and flooding was accompanied by wind gusts of up to 110 km/h (68 mph) in the state's southeast and Melbourne's eastern suburbs. The highest rainfall was recorded at Mount Buffalo, with 180 mm (7.08 in) recorded between Saturday and Sunday (4 and 5 September). Authorities expected floodwaters to move downstream, affecting further towns and regions over the following days. Residents in affected areas were advised to boil their water and avoid driving or travelling through floodwaters.

Victoria had been in severe drought since the late 1990s and had been progressively receiving increased rainfall since the late 2000s, but by mid-2010, the state received some of its highest rainfall recorded since the late 1990s.

Severe storms moved over southeast South Australia on Thursday/Friday (2 and 3 September) bringing heavy rain and cutting electricity to around 40,000 homes. These storms moved over western Victoria by Friday night and continued in a roughly easterly direction throughout that weekend, bringing heavy rain to much of Victoria.

The State Emergency Service and Bureau of Meteorology anticipated that floodwaters flowing downstream would eventually cause widespread flooding in the Murray River for several weeks.

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