Spring/September temperature records on Australia's East coast are set to tumble in the coming days, due to a heatwave, as described here.
So the hot air is being pulled from the interior of the continent to the coast. That makes sense. But some of the towns in the interior of the country are setting temperature records as well. So what is the explanation for why the air in the interior is the hottest on record? What is the ultimate cause of the hot air?