We received a great many messages yesterday all asking the same thing: "Why were the clouds red in the skies above Brighton on Thursday?".
A large fire, the apocalypse and even a Sussex dragon - there have been several outlandish suggestions as to what could have caused the unusual sight.
But now, a weather expert has put all speculation to bed and explained the true reason behind the vibrant clouds.
This is why there were red clouds over Brighton yesterdayCredit: Jenny Hudson
Met Office spokesman Grahame Madge said: "The images show mammatus clouds, which are quite unusual and form when the air is unstable.
"They are most often associated with thunderclouds - otherwise known as cumulonimbus clouds.
"The bulging pillows at the base of the cloud are formed by the rapid descent of pockets of cold air within the cloud.
"As these pictures were taken with a setting sun the clouds appear to be bathed in reddish light which accentuates their bulbous features, adding to the spectacle."
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