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 formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...