What happens when fronts collide? And please don’t give me the smart Alec answer of they occlude. I do realise that after 50 years of colouring fronts red, blue and purple that’s what happens when a cold front eventually catches up with a warm front. But as you can see that’s what looks likely to happen in the latest T+60 forecast chart from deepest darkest Devon. It’s obvious that Mr Occlusion has been let out of the sanitarium and spent the night shift producing a chart where one occlusion aligned NW-SE moving eastward through Stornoway is facing off with another occlusion through Inverness moving westward. I don’t know if two fronts have ever collided before and heaven knows what the implications will be for the weather in northern Scotland.