As heat records continue to be shattered with every passing day, Australia's Bureau of Meteorology has updated its weather forecasting chart to reflect rising temperatures.
"The scale has just been increased today and I would anticipate it is because the forecast coming from the bureau's model is showing temperatures in excess of 50 degrees," the bureau's climate monitoring and prediction unit chief David Jones told the Sydney Morning Herald.
For the sake of context, Australia's all-time record high temperature is 50.7 degrees.
The warming and expanding of South Australia's "dome of heat" isn't merely academic: A new national average maximum temperature of 40.33 was set yesterday after the first six days of 2013 charted among the 20 hottest days on record.
The meteorology bureau's head of climate monitoring for NSW notes that just because one forecast model indicates temperatures above 50 degrees, that doesn't necessarily mean the record will be broken.
However, monitoring is limited in areas predicted to be the warmest, so even if the record is broken, it may be impossible to tell.