The trough was then expected to move south or south-easterly on Monday, moving parallel to the coast along the coastal fringe or offshore, bringing with it heavy downpours.
The threat was dependent on the track the trough took, but the Bureau warned heavy rainfall which could spark flash flooding could develop on Sunday night and into Monday.
Six-hourly rainfall of 120-160mm was expected with more intense localised falls of 200-250mm possible in coastal communities and on Fraser Island.
A flood watch had been issued for coastal catchments and the likes of Maroochydore, Gympie, Noosa Heads and Rainbow Beach were listed as areas which could be affected.