Torrential rains flood northern parts of Australia's Queensland state on Friday, causing chaos for residents.<br/> <br />Large parts of the state are on severe weather alert as the rains now move southwards.<br/> <br />The heavy rains - the remnants of Tropical Storm Oswald - caused some major highways and dozens of roads to be cut off, isolating towns and flooding properties.<br/> <br />Some residents said they were struggling to get rid of the water in and around their houses.<br/> <br />Authorities say those living in southeast Queensland are due to expeirence heavey rainfall and strong winds this weekend.