The climate change alarmists are obviously getting alarmed - is the climate not obeying their models? Did nobody tell the Weather Gods? Or the weather manipulation boffins that some fear are meddling with our meteorology? Were they badly advised?
No matter, following the lead set by the WHO (who are not backward to redefine the term "vaccine" to more accurately reflect their wishes whenever the need arises) the Met Office has evidently decided that heatwaves are not sufficiently profuse and they will now use a different definition.
Of course this is nothing to do with cooking the books, merely a wise precaution in keeping with their ever-vigilant drive for continuous improvement, in this case to ensure that their reports are properly interpreted by the public.