News from the world of maths

Autumn is upon us, and as every year we're anxiously pondering what winter might have in store. According to the Met Office's tentative forecast based on early indications, we're in for a milder winter than last year, with rainfall at or above average. A more definitive forecast is due out in November, but it wouldn't be surprising if the people at the Met Office were a tad nervous about putting their necks out once again. Their April forecast, stating that the UK was "odds-on for a barbecue summer", sent British tempers flaring when July turned out to be one of the wettest on record. In response to the miserable weather, and mounting criticism, the Met Office revealed in August that its earlier optimism had been based on a 65% probability of a hot dry summer, and insisted that it had explained at the time that this forecast did "not rule out the chances of seeing some heavy downpours at times". Too right, you might say, since the overall rainfall for summer 2009 turned out to be 40% above the historical average.

To be fair, the Met's barbecue debacle was down to a failure to communicate its predictions clearly, rather than predictive incompetence.... Read more!

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