Aus weather may not get the snow and ice issues experienced overseas however some of the worst storms I have seen have been around Brissy.
My airline is limited to 50 knots for any operations so any forecast beyond that is irrelevant.
The difference between the US (and I assume Europe) and Aus is the lack of dispatch support provided to pilots down under and the remote location of many airports with little offering in the way of a plan b.
Flying in the US is constant handholding with big brother watching your every move in real time along with a HUGE number of options in case the destination turns to worms. Its a great system and makes for a generally enjoyable day out.
But I take my hat off to pilots in oz, I think its a challenging place to keep the wagon on the rails, on time and safe.