large-scale wind system

meteorology

Also known as: macroscale wind system

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Last updated

June 30, 2026

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Large-scale wind systems are organized atmospheric movements that span thousands of kilometers and can last for days to weeks. These systems are characterized by horizontal air motion and are significantly influenced by the Coriolis force, an apparent force resulting from Earth's rotation.1

Examples of large-scale winds include the trade winds and the westerlies. These winds are driven by differences in atmospheric pressure, flowing from areas of high pressure to low pressure. The interplay of pressure gradients, the Coriolis force, and friction shapes wind patterns, influencing global weather and climate. Jet streams, powerful upper-level winds, are also considered large-scale phenomena that steer weather systems.1234

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Scale classes
Large-scale wind systems are distinguished by the predominance of horizontal motions over vertical motions and by the preeminent importance of the Coriolis force in influencing wind characteristics. Examples of large-scale wind systems include the trade winds and the westerlies.
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Large-scale wind systems are distinguished by the predominance of horizontal motions over vertical motions and by the preeminent importance of the Coriolis force in influencing wind characteristics. Examples of large-scale wind systems include the trade winds and the westerlies.
Read More