The Met Office’s ridiculous claim that the U.K. had experienced its hottest ever May and spring provides further devastating proof that its temperature measuring operation is hopelessly corrupted by unnatural urban heat distortions. Maximum temperature in the three-month spring, likely to be set during the day, was only the fifth highest since 2011, but the minimum figure was an astonishing 11% higher than any previously recorded figure. One known feature of urban heat is that human-built structures release considerable warmth during the night and can warm cities and towns by surprisingly large amounts. The European weather service Copernicus has suggested that urban night temperatures can be up to 10°C higher than surrounding rural areas.
As we have seen in recent editions, the Met Office’s 380 U.K. station network is unfit for the purpose of providing an accurate air temperature average. This is because nearly eight out of 10 of the stations are so poorly sited that they attract ‘uncertainties’ set by the World Meteorological Organisation (WMO) of between 2-5°C. Nearly one third of the stations are rated Class 5, a junk rating where compromising structures could add an ‘uncertainty ‘of 5°C. The block illustration below shows the station range between Classes 1-5. Only stations in Class 1 measure surrounding air temperatures without any fear of unnatural corruptions, but they account for only 6.3% of the total.
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