Technically, there are no floods, yet. But almost certainly will be along the east coast of NSW and Qld. The weird thing is its being fed by a cyclone all the way across the other side of the continent (north west Aus). Somehow the weather snakes its way across the desert without raining much, then reconfigures into a deluge on the east coast.

Forecast totals over 250 mil for the whole event which will transpire over several days. That's not a big deal in Taiwan but will challenge the flood defenses of Australia. This in combination with a king tide and huge surf whipped up by offshore winds.