Aviation Dictionary

Mesoscale convection system (MCS)

A large cluster of thunderstorms with horizontal dimensions on the order of 100 miles. MCSs are sometimes organized in a long line of thunderstorms (e.g., a squall line) or as a random grouping of thunderstorms. Individ…

Dictionary Term

Mesoscale convection system (MCS)

Definition

A large cluster of thunderstorms with horizontal dimensions on the order of 100 miles. MCSs are sometimes organized in a long line of thunderstorms (e.g., a squall line) or as a random grouping of thunderstorms. Individual thunderstorms within the MCS may be severe.

References

Glider Flying Handbook · Federal Aviation Administration · 2024