Good comments by all
Looks like an interesting thread created by HB
I hope you are right Stevco about Sunday.
IMO this set up looks historical but it's not just about the temperature. Unlike most end of January northerly set ups, this has a higher moisture content and has large high based thunderstorm potential over several days. The traditional set up of low humidity, strong northerlies is currently not what the models are projecting. Of course this can change...but it's getting closer and they are all locking in the same scenario.
Rather than cherry pick models, here is what 3 global ensembles and Access think at the moment. Considering high moisture, these current temperature projections across 93 models is jaw dropping. Even Broome, Cairns and Darwin rarely get above a 40c heat index on the eve of wet season. The danger here IMO is heat stress on a large scale. This will be a shock to Victorians creatures of all varieties.