A tornado was seen forming in UK skies as residents captured the huge funnel cloud on camera.
After a week of soaring temperatures for most of the country, the heatwave gave way to thunderstorms and torrential rain in parts.
In the village of Rhosgadfan near Caernarfon, North Wales, residents were shocked to see a vortex moving through th sky on Thursday evening.
Caernarfon councillor Jason Wayne Parry captured an image of the funnel cloud starting to form at around 9pm from nearby Groeslon, which he described as "scary".
He said: "It didn’t form totally. It grew and stayed there for about four minutes [before it] then faded.
"It was quite still. The air here has been incredibly heavy all night."
As the funnel cloud did not reach the ground, it did not officially become a tornado, reports North Wales live.
According to the Met Office, a funnel cloud develops "as the vortex forms due to the reduced pressure in the vortex".
They said: "Strong inflowing winds intensify, and the spin rate increases as the vortex stretches vertically.
"If it continues stretching and intensifying for long enough the vortex touches the ground, at which point it becomes classified as a tornado.
"The tornado then moves across the surface causing severe damage or destruction to objects in its path."
Stormy conditions arrived in some parts of North Wales this evening after the region enjoyed the warmest day of the year so far.
A yellow weather warning is in place for most of England, Scotland and east Wales from midday to 9am on Saturday.
The south-west and part of the south-east coast of England are not covered by the warning.
Met Office meteorologist Craig Snell said: "Not everyone will see a storm, but if you catch one, you will certainly know about it."
The change in weather comes as the UK experienced its hottest day of the year so far on Thursday, with the mercury rising to 33.4C at Heathrow Airport in west London.
