Why is Australia suffering severe flooding?

About 80 people are believed to be missing after torrential rain brought further havoc to the Australian state of Queensland.

So far 10 people have died in the latest flooding which yesterday raged through the city of Toowoomba.

Rivers in some areas are expected to rise by 16m, and evacuations are underway in Brisbane as the Brisbane River begins to burst its banks in places.

BBC weather forecaster Louise Lear explained what conditions have caused the floods and how long the current weather will last.