People walk through Canary Wharf as the sky over London turns yellow-orange on Oct. 16, 2017.
"As Ophelia has come up from the Azores, the storm has picked up Saharan dust from North Africa and picked up dust from wildfires in Spain and Portugal," a spokeswoman for Britain's Met Office said.
"This yellowish hue is from the dust that is high up in the atmosphere and the blue element of the sunlight is scattered by the dust but the red element gets through so the sun appears redder and you get this sort of yellowish tinge," she said.
A plane flies past the Shard.
Girls play with leaves with the Houses of Parliament in the background.
A woman takes a photo of the mid-afternoon sky in the financial district of Canary Wharf.
The London Eye is bathed in a grey-orange sky.
Children play in Hyde Park.
Pedestrians cross the Millennium Footbridge with the sky darkened over London.
A man sits on a bench in Hyde Park.