The Met Office have reused their convoluted hourglass warning shape again. This time it’s for another yellow warning of snow later on Thursday and Friday of this week. I would have thought that it might have been a good idea to see how successful todays shape was before they reused it again. They are expecting both today’s event and the one on Thursday to be primarily one of snow falling over hills and disrupting transport on higher level routes. They also seem to have latched onto a convenient euphemism “transient snow” in their recent warning which they probably use to explain away the much larger area of snow in their animation. This hourglass shape might become a familiar one for snow warnings in the years to come, thanks to global warming shrinking year on year, becoming smaller and smaller until it finally disappears.