Whilst conditions in London have certainly felt hot this week - I think it's fair to call it a heatwave and it is probably newsworthy to some degree - the way we've been put on "Level 3 alert", one below emergency level, is a joke. 30°C has not been widespread at all and if anything the weather has got less hot as the week has gone on, not hotter: 31°C on Mon and Tues, 30°C on Wed and Thurs. And as for the forecasts this morning, they were talking of 32°C or even 33°C in the Greater London region for this afternoon. As it is only one or two places nudged only just above 30°C, unsurprisingly one of them was Heathrow. At such a short timeframe this was poor forecasting. Just from looking at the morning temps I thought it was too low to reach those heights: Heathrow started at 15°C this morning and the London Weather Centre at 16°C. To reach 32°C/33°C you almost always have to be looking at minima the previous night of at least 18°C to 20°C. I therefore think the forecast was overly optimistic just to justify the absurd "alerts" that had been issued the previous day.