Stunning stripes of clouds were seen lining the skies above parts of the UK leaving residents baffled.
The long streaks – known by BBC Weather Watchers as ‘cloud streets’ – were spotted in Oxford and Tacley in Oxfordshire as well as Little Rissington and Cirencester in Gloucestershire.
The bizarre skies were reported on Thursday evening, with a flurry of photos being shared by eagle-eyed locals.
But BBC weather presenter Simon King said the cloud formations are not uncommon in the UK, it was just that the fading light of the sky made them more prominent.
And they are officially called horizontal convective rolls.
The images showed clear stripes of cloud with a pink hue against dark blue night skies, illuminated by the light of the moon.
Taking to Twitter , those living in the affected areas shared their experiences.
One user wrote: "Amazing, I’ve never seen anything like it!
While another joked: "You’re sure it wasn’t the @rafredarrows having some fun?"
Warm air on the surface rises, cools and then condenses into cloud.
In certain situations, a warm layer of air in the lower atmosphere called an inversion acts as a lid preventing the air from rising any further.
At the top of the cloud, the cooler air is forced out horizontally, which forced it to drop back down to Earth. In this area the cloud doesn’t form so it’s clear.
This then sets up a cylindrical circulation which is parallel with the wind, creating the long row of cloud.
According to meteorologists, the muggy weather that we have been experiencing is the reason behind the natural phenomenon.
A Met Office spokesperson said: "These clouds can be very helpful to pilots as they are a strong indicator of the direction of airflow and air temperatures.”
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