ESS124
Prof.
Jin-Yi Yu
Flooding from
Mesoscale Convective Systems – MCS
•Mesoscale convective systems (MCSs) can also cause flash floods.
•MCSs can move very slowly, particulalrly in summer when the upper tropospheric flow is weak.
•New thunderstorm cells in the storm complexes are triggered by the gust fron outflow boundaries of older thunderstorms.
•In this way, thunderstorms keep regenerating, and a heavy rain
accumulation over a
localized area.