Photos have shown the amazing clouds that formed above parts of south Wales on Tuesday evening, June 25. People from areas of Cardiff and Newport have shared their photos of clouds forming ripples in the blue sky. Some even got to see the beautiful clouds amid the Foo Fighters' epic gig at the Principality Stadium - read our review of the huge gig here.
According to the Met Office however, this kind of cloud formation is relatively "rare". These clouds can be classified as what the forecaster calls cirrocumulus clouds, which form ripples that may resemble honeycomb or the scaly skin of a fish. It is sometimes referred to as a mackerel sky.
Its name derives from Latin, with the 'cirrus' part meaning a lock or tuft of hair, while 'cumulus' means a heap. According to the Met Office, cirrocumulus clouds are made up of lots of small white clouds called cloudlets, which are usually grouped together at high levels, with the height of its base at around 20,000 to 40,000 feet. READ MORE: Heating expert reveals fan trick that can help to keep your home cool during heatwave LATEST: 'I tried Shark's new fan and it's the perfect heatwave saviour - and on sale' It is composed almost entirely from ice crystals.
If you look at cirrocumulus clouds, the little cloudlets are regularly spaced. They are usually made up of both ice and 'supercooled' water. According to the Met Office, this means that the water remains as liquid, even at temperatures below 0C.
For the latest Welsh news delivered to.
