On 2-6 November, 2009, a group of meteorologists from Sweden, Germany, the UK and US got together at NOAA/ESRL in Boulder, Colorado, for the the First ASCOS Meteorology Workshop. Besides a nice dinner at the Dushanbe Teahouse we spend five 9-hour days picking apart some of the the meteorological data from the ASCOS campaign, focusing primarily on vertical mixing and processes that contributed to cloud formation and their effects.