The hue is a remnant of Storm Ophelia dragging in tropical air and dust from the Sahara, while debris from forest fires in Portugal and Spain is also playing a part, according to the BBC weather presenter Simon King. Facebook Twitter Pinterest The sun is seen after dawn near Exeter. Photograph: Toby Melville/ReutersThe dust has caused shorter-wavelength blue light to be scattered, making it appear red. Facebook Twitter Pinterest Clouds turn the sky black over the seafront in Bognor Regis. Photograph: Jim Wood/Barcroft MediaThe red sky also created a vivid backdrop for television broadcasters; the BBC’s Westminster interviews were conducted against a striking image of Big Ben.

Source: The Guardian October 16, 2017 15:18 UTC