All weather systems
“Thunderstorm metropolis - sprawling city of storms dominating the night sky”
Formation
Multiple thunderstorms merge into organized system
Impact
Major source of warm-season precipitation and flooding
Technical specs
WindVariable, 50-100+ mph in embedded storms
RegionsGreat Plains, Midwest US, similar continental regions
rare
Famous encounter
The Great Flood of 1993 - Partly caused by repeated MCCs
Etymology
Meso (middle) + scale + convection (heat transfer by movement)