scattering phenomenon

Before the Typhoon Hagibis landed, the sky of Japan suddenly turned strangely purple
Many Japanese people shared photos of the moment when the sky turned scary and dark purple on social networks.
The Florida sky turned purple after Super Storm Dorian passed by
The people of Florida, USA have just witnessed the night sky with a fanciful purple color after the storm hit the coastal area on the east coast of the United States.
The sky of England suddenly blazed like a Apocalypse, and this is the cause
In recent days, people in London and many parts of the UK have witnessed a very strange sight.