Definition
A small, intense secondary vortex that forms within the larger circulation of a tornado. Several suction vortices can rotate around the common center of a multiple-vortex tornado, producing the most violent damage along narrow, twisting paths inside the broader tornado track.
Plain English
A smaller, faster-spinning whirl that forms inside a tornado. A tornado can contain several of these mini-whirls orbiting the main funnel, and they cause the worst damage where they touch down.
Context Anchor
Seen in severe weather and tornado discussions, especially when describing why tornado damage can be extremely uneven from one spot to another.
Derivation
From Latin sugere, 'to suck,' and Latin vortex, 'a whirling mass.' The name reflects the strong inward-and-upward pull these small whirls produce as they orbit the parent tornado.
Why Pilots Care
Prevents engine damage by highlighting the risk of debris ingestion during ground operations.
Grounding Statement
Picture a narrow, violent spinning finger of air embedded inside a larger tornado path.
Intuition Check
Do not think of “suction” as a vacuum cleaner effect. Here it means air being pulled inward and upward by very low pressure in a tight rotating flow.
Example Sentence 1
Damage surveys after the storm showed the narrow, looping tracks typical of suction vortices within a larger tornado.
Example Sentence 2
Maintenance training emphasizes checking for suction vortex effects after operations in dusty environments.