Over the period 6 to 14 June, a low pressure system moving south from Queensland, and a high pressure system fairly stationary in the Tasman Sea directed humid easterly air onto the South Coast of NSW, causing heavy rainfall over a 6 day period. This heavy rainfall caused minor flooding throughout the Moruya River catchment.

In line with the Department's responsibilities to collect flood data, the South Coast Regional Office (SCRO) proceeded to carry out past flood monitoring activities and collected recorded flood data from its water level recorders and its network of maximum height indicators throughout the Moruya catchment.

Recordings of water levels by Council personnel at the Moruya Bridge staff gauge showed the river peaked at RL 2.90 m AHD at 1900 hours on 12 June 1991. From the stage height frequency curve for Moruya Bridge, the average recurrence interval of the flood event is determined to be 1 in 5 years.

This report summarises the storm event and resulting flooding.