Mesoscale
Weather
Size scale referring to weather systems smaller than synoptic-scale systems but larger than storm-scale systems. Horizontal dimensions generally range from around 50 miles to several hundred miles. Squall lines, MCCs, and MCSs are examples of mesoscale weather systems
Climate Change
A scale of meteorological phenomena that ranges in size from a few km to about 100 kilometers. It includes local winds, thunderstorms, and tornadoes.
- — ARM Climate Research Glossary retrieved 2014-06-12