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

An instrument for measuring atmospheric pressure.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...