Dark blue cloudy sky

What is Orographic Lift?

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

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Glossary

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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