The weather bureau called it a "winter weather bomb" and it left behind a trail of destruction, battering Victoria with 130 kilometre per hour winds.
as the strong winds brought down trees and sent debris flying through the air.
The Yarra River in the CBD started overflowing unexpectedly as a result of a high tide and the bad weather.
Look back on the day's extreme weather through photos from ABC journalists and members of the public.
© ABC 2014
17:37 EDT Much of western New South Wales has begun a heat wave, reaching at least five degrees above average for at least five days, averaging a maximum of 35 degrees or more.