I have been looking at temperatures for GFS and the previous predecessor AVN for many years and I don't think I have seen NSW with such heat forecast and so widespread like this. I have seen 42C isotherms but 45C? Wow! It is going to be a hot one today and there will be storms in some areas where the cap can be broken. Inland the bases are going to be ridiculously high!
I would not be surprised to see temperatures in the 46 to 48C range again today!