Dark blue cloudy sky

What is Kelvin Helmholtz?

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble ocean waves rolling at equal intervals and are one of the rare types. It is believed that these clouds with their mesmerizing appearance inspired the swirls we see in Vincent Van Gogh's painting "Starry Night." So, how does this type of cloud form? They arise when two different layers of air in our atmosphere move at different speeds and occur when there is a strong vertical shear between the two air currents, causing the winds to blow faster at upper levels than at lower levels.

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Glossary

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

The branch of science dealing with the laws of motion of air or other gases.

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....