Renewed flood warnings stretched across Australia's east coast Tuesday, with tens of thousands of residents in Sydney ordered to evacuate overnight as torrential rains caused flash flooding across the already saturated New South Wales coast.Sydneysiders were warned to brace for "a tough 24 hours or even 48 hours ahead" by Bureau of Meteorology forecaster Dean Narramore on Tuesday morning."There is no past history similar to this event. We've come out of the La Nina, or we're coming out of that. The forecasts can never tell us exactly where the heavy rainfall is going to fall, and the flow o…READ FULL ARTICLE