Melbourne heat burst
 

Apparently Melbourne had a 'heat burst' last night, after the thunderstorms had rolled through.

http://en.wikipedia.org/wiki/Heat_burst

As you can see, the temps went UP in the middle of the night, meaning a higher temp to start from this morning...

http://www.baywx.com.au/melbtemp.html

http://www.meteorologynews.com/wp-co.../heatburst.jpg

As if Melbourne didn't have enough 'interesting' weather.