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 names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.