Perth
I flew into Perth last night from Singapore on SQ215, also A330. about midway between java and northern australia, captain announced "rapid changes in wind direction" and sat the crew. moderate clear air turbulence but even on the air show, the wind was alternately displayed as 100km headwind/100km tail wind. after about 10 mins we decended from fl370 to fl 350 and the ride became much smoother. the qf flight was all over the tv/radio news this am. that particular area, java/borneo and the area north of the oz mainland is very unpredictable...
oh, and there were people headed to the toilets while the flight attendants were still strapped in!