2022 south eastern Australia floods

The floods were attributed to excess torrential rain caused by La Niña and a negative Indian Ocean Dipole.

[12] According to the Insurance Council of Australia, the NSW floods were the nation's costliest natural disaster on record, with over $5.5 billion in claims.

[14] A positive Southern Annular Mode and negative Indian Ocean Dipole also favoured wet conditions.

[15] Strathbogie topped the Victorian charts, receiving 220 mm of rainfall in a 24-hour period, marking more than twice October's average.

[26] On 13 November the Central Coast Council estimated that the cost of repairing damage within their region would exceed $2 million.

[28] Another death was reported on 24 October when a woman's body was found on the bank of a river near Gulgong, New South Wales.

[2] Widespread rain and storms spread across NSW, and Victoria, causing more major flooding for river systems.

The Mehi River at Moree caused 4,000 residents to be evacuated and reached a peak level of 10.5 metres,[29] with the town receiving 107.8 mm of rain on the 21st of October.

[36] An international team of flood rescue experts arrived in mid November from New Zealand and Singapore to relive fatigued NSW emergency service crews.

[37] The forecast peak Murray River flows in South Australia were gradually revised during October to December.

[43] By this time, 1700 to 1800 South Australian properties had been flooded,[43] and about one levee per day was being breached by the rising waters.

A shot of the River Murray from the air, taken on December 4 2022. It shows high river levels.
The River Murray photographed from the air on December 4, 2022, looking towards Bowhill . The river's water level increased significantly due to high flows from upstream.