A giant cloud that looked like an enormous tsunami left onlookers baffled as it hurtled towards homes across Wales.

The bizarre cloud formation was spotted towering thousands of feet high as residents across the county went on social media to report the weather phenomenon.  

➡️What is the Arcus Cloud!!

An arcus cloud is a low, horizontal cloud formation, usually appearing as an accessory cloud to a cumulonimbus. Roll clouds and shelf clouds are the two main types of arcus clouds.

They most frequently form along the leading edge or gust fronts of thunderstorms; some of the most dramatic arcus formations mark the gust fronts of derecho-producing convective systems.

Roll clouds may also arise in the absence of thunderstorms, forming along the shallow cold air currents of some sea breeze boundaries and cold fronts.

- Google

свернуть