A severe heatwave sweeping across southeastern Australia has significantly heightened bushfire risks, with Melbourne forecast to experience its hottest day in nearly 17 years on Tuesday, prompting emergency warnings and evacuations in several rural communities.

Authorities issued urgent evacuation orders for hundreds of residents in high-risk areas as soaring temperatures, dry vegetation and strong winds combined to create dangerous fire conditions. Emergency services said fires could spread rapidly and urged residents to follow official advice without delay.

The Bureau of Meteorology forecast temperatures in Melbourne to exceed 43 degrees Celsius, marking the city’s most extreme heat since 2009. Officials warned that infrastructure, power supplies and public transport could be strained under the intense conditions, while health authorities cautioned vulnerable populations to remain indoors and hydrated.

Australia has faced increasingly frequent and severe heatwaves in recent years, a trend scientists link to climate change. Extreme heat events have contributed to longer bushfire seasons and more destructive fires, including the catastrophic “Black Summer” bushfires of 2019–2020, which killed dozens of people and destroyed thousands of homes.

State fire authorities said firefighting crews were on high alert across Victoria and neighboring states, with aircraft and ground teams pre-positioned in anticipation of fast-moving blazes. Officials warned that conditions could remain volatile for several days, depending on wind shifts and rainfall patterns.