Brewery workers were left awestruck after spotting an unusual weather phenomenon on a trading estate.
Staff at Tiny Rebel Brewing posted a video of what appeared to be a small "tornado" whipping through the Wern Industrial Estate in Rogerstone, Newport, outside the company's brewery on Tuesday afternoon.
The video showed a tall, tight vortex of air and dust spiralling a few hundred yards from the window of the brewery, prompting the company to quip that they've been "busy brewing up a storm".
It was shared hundreds of times on social media and led to some commenters suggesting the event should inspire a new brew.
A Met Office spokeswoman said the weather phenomenon appears to be a "dust devil" or a small tornado. Small tornados are not uncommon in the UK but they are usually just a few metres across and last just a few minutes.
Dust devils mainly occur in desert or semi-arid areas where the ground is dry and high surface temperatures produce strong updrafts.
They are dissimilar to tornadoes as they grow upwards from the ground (rather than down from the clouds), only last a few minutes, and are nowhere near as powerful or destructive.
Dust devils only last for a short period of time because cool air is sucked into the base of the rising vortex which cools the ground and cuts off its heat supply.
A Met Office spokeswoman said: "This definitely looks like a dust devil or a small tornado.
"Small tornadoes are not uncommon in the UK, however, they are small features often just a few metres across and lasting just a few minutes.
"Although much smaller and much less destructive than the features we see in places like the United States they are formed in much the same way.
"They are a rotating column of air, caused by the rapid displacement of warm moist air by cold dense air often associated with the occurrence of active cold fronts.
"On average, 33 tornadoes are reported each year in the UK although the number can vary significantly from year to year.
"The UK has the highest frequency of reported tornadoes per unit area in the world, although, they are nowhere near as intense as those reported in the USA."
