...Crew handed out water at the 3 hour mark.
N850CR, it sounds like you don't quite know if you might all be alighting in CBR if the plane has problems.
That said, is there any indication that you may all be receiving a meal on board (perhaps sandwiches and rolls from 'raiding' an airport cafe, although one cafe would not have sufficient for a planeload of passengers and crew.)
Were you last fed about three hours prior to arrival in CBR? What about babies, young children and the pooer health elderly on board - they're the ones who find going without food (or drink) for a long time difficult.
The QF website suggests that you will depart CBR at 1900 hours and arrive SYD at 1930 - that isn't possible because no flight can go from the CBR gate to one in SYD in half an hour.
Unless there is a spare B744 hanging around, it may be that QF25 from SYD to HND is delayed tonight, or at worst misses curfew, because quite often QF64 forms QF25. I cannot discern this as the QF website is yet to indicate a gate number for QF64 in SYD.
You were most unlucky, because some flights 45 minutes later or so managed to make it in to SYD: as always happens with these storms, there's no pattern as to which flights divert and which ones have minimal delays.
QF5, the 1715 SYD - SIN on 17 February departed at 1808: not too bad given the numerous other storm-related delays.
The 1500 hours MEL - SYD (QF442) departed at 1811 with arrival suggested as 1923, two hours and 58 minutes late. In contrast, the following QF444 (the 1530 hours) was 'only' 63 minutes late arriving SYD at 1758. It can a lottery with domestic flights as well as to how long one is delayed.
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