By Bradley Jolly Vehicles are expected to be covered in grime for days as dust particles blown over the Atlantic from Africa are to fall across the UK. The Sahara dust will be enveloped by rainfall on Sunday and Monday and fall as fine red dirt, which the Met Office says often cover vehicles and roads. Dust clouds transported thousands of miles by high winds will be washed down from the atmosphere by rain on Sunday afternoon, of which up to 10mm an hour is expected in Northern Ireland in particular. Nick Finnis, meteorologist with Netweather, wrote on the service’s blog: “The strengthening sou…