Dark blue cloudy sky

What is Advection Fog?

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over a warm and moist surface. Examples include advection fogs, monsoon fogs, sea fog, and tropical air fog.

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Glossary

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

A very cold high pressure that originates over the Arctic Ocean.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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