Whither weather?
For most of this year - certainly since March 2011 - it has appeared to me that the weather forecasts for Canberra issued by the Bureau of Meteorology (BoM) have been a bit of a dogs breakfast. By that I mean they have been all over the place. I place great weight on the phrase "appeared to me" since I have not tried to record events in any structured sort of way. By way of example, here is a summary of my memory of the weather forecast issued prior to 31 July for the period from Sunday 31 July to about Friday 5 August. There were to be no frosts in this period (ie all minimum temperatures would be above 0); There would be showers on Sunday and then showers again from Wednesday through Friday. The forecast issued in the afternoon of 31 July (a more or less dry day after a -2 minimum) has A mininmum of -3 for Monday and 0 for Tuesday.; Isolated showers on Friday. This seems to be quite a significant level of change. To try to get a handle on whether this vari