The Mesoscale Analysis and Forecasting Group is involved in a wide-ranging research program to understand and predict atmospheric mesoscale and synoptic phenomena, ranging from large-scale frontal and storm systems to orographic features of scales ranging from one to hundreds of kilometers.  The group makes use of high-resolution mesoscale models, such as WRF, and modern observational tools to delineate atmospheric structure and dynamics.  Use of mesoscale ensembles for probabilistic prediction and data assimilation is another major project, as is determining the regional implications of global climate change.