© AFP Photo.Map showing three-day heatwave forecast for Australia starting Tuesday.
Australian authorities warned Tuesday of some of the worst fire danger since a 2009 inferno which killed 173 people, with most of the continent's southeast sweltering through a major heatwave.
Victoria state, where the so-called Black Saturday firestorm flattened entire villages in 2009 and destroyed more than 2,000 homes, was again bracing for extreme fire weather.
"These next four days promise to be amongst the most significant that we have faced in Victoria since Black Saturday," said acting state premier Peter Ryan.
Tens of thousands of firefighters were on standby, and 1,290 brigades were in a "state of high preparedness", he added, with the peak danger day expected on Friday when very strong winds are forecast.
Two separate grass-fires tested crews early at Little River, west of Melbourne, and Kangaroo Ground to the east.
The flames raced out of control and triggered brief emergency alerts before water-bombing aircraft and engine teams managed to bring them under control.
Comment: Dry lightning? Maybe. But then there's also this coming down from overhead:
Breaking News: NSW, Australia - Meteor spotted, 12 January 2014