There is nervous excitement in the Northern Territory outback town of Katherine with the return of a bountiful wet season.
WET WEATHER and wild winds are expected across wide parts of SA during the next few days, with clouds already forming in the west of the state near the WA border.
The heatwave in southern states has been doused by rain as temperatures rise to near record levels in Sydney today.
The La Nina event had failed to get the summer wet season started in the tropics until it got help from the Madden Julian Oscillation.
UPDATED: Tornado associated with a vigorous cold front has caused significant damage in the Victorian town of Horsham.
SA is bracing for a "severe to extreme" heatwave across the next few days, with temperatures expected to be 15 degrees Celsius to 18C above average for this time of year.
It may not feel like with the heatwave on the way for much of the country over the next week but the La Nina weather event is strengthening.