noun
mesoscale convective system; MCS
Technical meteorological term for a complex of thunderstorms organized on a scale larger than individual storms, often persisting for hours. The abbreviation MCS is also used in Japanese contexts.
メソ対流系は、しばしば集中豪雨をもたらす。
Mesoscale convective systems often bring torrential rain.
気象レーダーでメソ対流系の動きを監視している。
We are monitoring the movement of the mesoscale convective system with weather radar.
A line-shaped rain band is a type of mesoscale convective system characterized by a linear arrangement of convective cells, often causing prolonged heavy rainfall.
Compound of メソ (meso-, from English 'mesoscale') + 対流 (convection) + 系 (system). The term is a direct calque of the English meteorological term 'mesoscale convective system'.