Large parts of South Australia and Victoria are experiencing extreme fire danger today as a powerful heatwave pushes temperatures into the 40s. By midday Wednesday, Melbourne reached 37°C and Adelaide hit 41°C. Temperatures are expected to climb further, peaking at 42°C in Melbourne and up to 44°C in Elizabeth, north of Adelaide. Some areas like Murray Bridge may reach 46°C, while Port Augusta could soar to 45°C today and 47°C on Thursday. Northerly winds will increase fire risks, especially in South Australia and Victoria. "It’s not just a normal burst of summer heat," said senior meteorologist Miriam Bradbury. "These are really dangerous conditions." Most of South Australia stands at extreme fire danger levels except the northern pastoral areas. Isolated dry thunderstorms add to the threat. Commander Ann Buesnel of SA’s Country Fire Service warned: "The landscape is really dry. We haven’t had significant rain. Everything is essentially ready to burn." Emergency crews and volunteers are on high alert, with extra aircraft deployed to fight fires. Residents are urged to follow their bushfire plans, stay informed, and avoid risks. Victoria faces extreme fire danger especially in western and central parts, including Melbourne and Geelong, with a total fire ban in place. Country Fire Authority chief Jason Heffernan said conditions are tough for firefighters and that high fuel loads raise grassfire risks. He advised people to postpone harvests and have bushfire plans ready. Sydney and Canberra are expected to see rising temperatures from Thursday with highs of 31°C and 35°C, while Hobart remains warm at 28°C. Nights will provide little relief from the heat. Dr Michael Wright, president of the Royal Australian College of GPs, urged people to "stay hydrated and stay indoors if you can" and to check on vulnerable family members. Australia experienced its fourth warmest year in 2025, with average temperatures up 1.23°C. The climate crisis is driving more frequent and severe heatwaves and bushfires.