The storm has surged to the equivalent of a Category 4 hurricane, boasting maximum winds of 220 kilometers per hour (138 mph), according to the Joint Typhoon Warning Center.
Australia's meteorology bureau warned of potential further intensification on Friday, not ruling out the possibility of Jasper becoming a Category 5 system.
Situated 1,195 kilometers (742 miles) northeast of Queensland and moving south at 9 kph (6 mph), Jasper's projected path suggests it could make landfall near Cairns, a city with a population of 250,000, by early Tuesday. However, forecasters caution that the storm's trajectory may still change.
The unusual early arrival of the cyclone coincides with El Niño, a climate pattern originating in the Pacific Ocean, known to reduce rainfall along Australia's east coast and impact global weather patterns.
Simultaneously, heat warnings have been issued across several states and territories, including New South Wales (NSW), where over 8 million people reside. Sydney, the capital of NSW, is forecasted to experience temperatures of 40 degrees Celsius (104 Fahrenheit) on Saturday, exacerbated by strong, dry winds.
Some schools in Sydney closed on Friday, and parts of NSW were under a total fire ban due to an elevated risk of bushfires. In South Australia, a "catastrophic" fire rating was issued, indicating a high likelihood of significant loss of lives and properties if a fire occurs.
Extreme fire danger ratings were also in place in parts of New South Wales and Victoria. While the heat is expected to abate somewhat by the end of the weekend, Australia remains highly susceptible to the impacts of climate change, characterized by frequent heatwaves, extreme rainfall, and devastating bushfires.
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