The city of Sydney recorded its hottest day on Sunday with the mercury hitting 47.3 degrees Celsius after nearly 80 years, according to Australian weather authorities.
New South Wales Police Deputy Commissioner Catherine Burn said the state's heat wave plan had been activated to respond to "severe to extreme heat conditions".
Severe fire warnings were issued for the greater Sydney area and total fire bans were put in place across the city.
The Bureau of Meteorology mistakenly tweeted that today's temperature was the all-time record, before discovering the historical date.
The top temperature had initially been forecast as 40C (104F), but temperatures at the Sydney International tennis tournament exceeded that by 10am, forcing players off court.
France's Kristina Mladenovic apologised after she retired midway through her match against Australia's Ellen Perez due to the heat.
Experts from the Australian Bureau of Meteorology - perhaps befuddled by the sweltering conditions - initially said it was metropolitan Sydney's hottest day ever.
It still was not the hottest for the area as another weather station recorded a temperature of 47.8 degrees back in 1939. 3 courtside photographers' cameras shut down, takes 55 degree temps to do that.
Sydney sweltered through one of its hottest days on record Sunday as temperatures soared in southern Australia and authorities imposed a fire ban in a sizzling start of summer.
More than 200 weather records were broken nationwide during the last summer, with intense heatwaves, bushfires and flooding plaguing the December 2016-February 2017 season.
JMU Football on Practice Field for FCS Championship Game
Stick is one of the country's most efficient passers, and the 6-foot-2, 221-pound junior ranks third in yards per completion. NDSU 14 JMU 3 - Easton Stick completes a 50-yard touchdown pass to Darrius Shepherd with 4:14 left in the second quarter.
Cyber Monday 2017 – The top sellers in electronics this year
Apple’s 9.7-inch Wi-Fi enabled iPad Pro was also still a great seller thanks to massive price discounts from retailers. Microsoft dropped their game changing console update, the Microsoft Xbox One X with a 1TB hard drive and 4K compatibility.