South Australia will continue to swelter as a low-to-severe intensity heatwave kicks in with some parts of the state also bracing for thunderstorms on Monday. In the state’s Far North, residents in Roxby Downs, Woomera and Leigh Creek will not only be battling 41C and 39C heat respectively, but also a possible afternoon storm. Possible storms are also on the cards for Hawker, Yunta, Orroroo, Waikerie, Renmark, Karoonda, Lameroo, Keith, Bordertown.