Small low on the Gold Coast with large 1037 hPa high in the Tasman Sea. 345mm of rain in the 24 hr to 9am 10th at Springbrook with flash flooding on the Gold Coast. Road collapsed at Bundall.

A woman was drowned when the motor cycle she was a pillion passenger rain into a metre of water at Nerang. A man was drowned when swept away by flood waters at Tallebudgera Caravan Park. A man was missing believed drowned by a flash flood on his Mullumbimby property.

There was one other death( source Lucinda Coates). Many other people were rescued from flood waters and hundreds of houses were flooded. Three boats were sank at Southport.

This event is classified as an East Coast Low.

More about East Coast Lows
Harden Up
Bureau of Meteorology website
The Centre for Australian Weather and Climate Research report