Very heavy gales (14th), SS City of Brisbane attempted to enter Moreton bay without success. Another ship narrowly escaped shipwreck in the Bay. Exceedingly furious gales on the coast between Brisbane and Sydney (18th to 20th).

Heavy rain and floods (14th) Myall Creek bridge at Dalby almost destroyed and part of the railway near Gowrie swept away. High seas on the coast with heavy gales. Several loves lost in different places also large numbers of stock and sheep. Disastrous floods and loss of life at Grafton.

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