All models are pointing to a significant event in southeastern to eastern NSW and eastern Victoria. In fact, anywhere from central Australia through the south eastern states a cloud band is streaming dumping the heavy rainfalls particularly with thunderstorms. Flood watches and warnings are in place in Victoria and expected flooding are also anticipated in eastern NSW.
For me, the most significant component is the expected flooding of the Hawkesbury Neapean River system which although is not the major part of the event but it is the first river flooding of this significance in over 20 years!
The following is a map of forecasted accumulated rainfall totals: