Parts of Victoria are expected to receive a deluge of rain as storms approach Australia's southeast. Melbourne is experiencing flash flooding, with record rainfall trapping a family under a bridge. Millions are under a storm threat. Torrential rain and thunderstorms are expected to hit millions of Australians across the weekend. The recent weather conditions have included a significant seismic event, adding to the wild weather. Authorities are advising precautionary measures as the situation deteriorates.