Naught of Comet McNaught

Why is it that when the best opportunity of my life time to view a spectacular comet occurs it is cloudy?

It has been cloudy here all week and I am getting frustrated. Today has been horribly grey but even on the sunny days we have had this week there has been plenty of high cloud, well at least enough to prevent a decent attempt at viewing.

Oh well at least I saw last year's (OMG that makes it seem so long ago) transit of Mercury - and helped many others see it too.