Kelvin-Helmholtz cloud

In this extra special blog we are going to talk about Kelvin-Helmholtz cloud. This blog has been inspired by the photo shared to us this morning by Ed Lewis. Who captured some Kelvin-Helmholtz clouds this morning on the Isle of Lewis.

Image credit Ed Lewis

So what is Kelvin-Helmholtz cloud?

According to the Met Office they are “an extremely rare phenomenon, where a cloud produces a billowing wave pattern. They occur when there is a strong vertical shear between two air streams, causing winds to blow faster at the upper level than at the lower levels.”

https://www.metoffice.gov.uk/weather/learn-about/weather/types-of-weather/clouds/other-clouds/kelvin-helmholtz

Another example of this Ireland earlier this year

Who discovered them?

“Kelvin-Helmholtz clouds are named for Lord Kelvin and Hermann von Helmholtz, who studied the physics of the instability that leads to this type of cloud formation.”

Source – https://earthsky.org/earth/kelvin-helmholzt-clouds

A great little video explaining it more here by Liam Dutton

It is something that I have seen myself but I have never been able to get a decent photo. Have you seen it? let us know in the comments below.

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