List of Pinterest's #sun Accounts and Hashtag suggestions.
The morning began ridiculously warm as southerly air streamed in, with 19C recorded at Camborne in Cornwall at 5am. The winds grew stronger and many areas turned so dark that streetlights switched on. To add to the surreal sensation, the skies turned sepia and the sun glowed a bizarre orange-red colour thanks to a cloud of Saharan dust and smoke particles from wildfires in Portugal. All those particles scattered the sunlight, just like particles in the atmosphere creating red sunrises and sunset
According the atmospheric optics expert Les Cowley, these solar halos are caused by a very specific reflections and refractions of the sun's light with ice crystals located in cirrus clouds high in the atmosphere. Normal rainbows are created by interactions of the sunlight with low level rain drops rather than high altitude hexagonal crystals of ice.