The body of a man has been found in a flooded creek, west of Gympie.
A 27-year-old man has been missing since early yesterday after the car he was in was washed off a flooded causeway.
The body was found by a local resident downstream from the causeway in Widgee Creek.
A man and woman were rescued in the incident.
Major flooding is expected in Gympie this morning, with the city's business centre and homes predicted to go under as the the Mary River peaks at 21m at 9:00am (AEST).
Meanwhile, police say the body of a motorcyclist swept off a bridge south of Brisbane overnight has been found.
The man went missing when he let go of his bike to grab a rope during an attempted rescue at Greenbank late last night.
Police are yet to confirm the man's identity.
© ABC 2013
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.