C441 said:
With an Alternate forecast on the TAF a Qantas aircraft would have the alternate fuel or would divert at or before PNR/DPA.
Isn't the real problem when the TTF does not reflect the "bad news" TAF and is relied on to continue past LPSD?
Which, of course, is to hide the myth that the TTF is "good for 3 hours", when in reality it is only 'good' until the next one is issued - on the METAR cycle or if a SPECI is needed!