Residents across eastern NSW to swelter in 'first significant heatwave of this season'
www.abc.net.au
A severe weather warning is in place across eastern NSW until Thursday, with temperatures expected to soar up to 12 degrees Celsius above average.

In short:

A severe heatwave warning is in place across eastern NSW until Thursday as temperatures are predicted to soar up to 12 degrees Celsius above average.

Wednesday is forecast to be the hottest day in Western Sydney, with temperatures reaching 40C.

What’s next?

The heatwave will dissipate by Thursday and Friday, with rainy and stormy conditions likely.