The Mesoscale and Microscale Meteorology Laboratory (MMM) aims to benefit society by increasing an understanding and knowledge of the mesoscale (1–1000 km) and microscale (10-6 – 1000m) aspects of weather.

MMM collaborates with other National Center for Atmospheric Research (NCAR) labs to improve Earth-system predictability through researching the process and prediction surrounding mesoscale and microscale atmospheric phenomena. MMM also plays a central role in the atmospheric simulation capability across NCAR.