Using the Penn State/NCAR Mesoscale Model version 5 (MM5) to simulate the atmosphere, the mesoscale structure of precipitation during the January 13-15, 1999, ocean-effect snowstorm in New England is investigated. During this storm, more than 25 cm of snow fell along the New England coastline. Mesoscale bands were observed during this storm, and this mesoscale structure is the focus of this modeling study. The MM5 is run using up to four nests, down to about 1 km in grid size, to bring out the details in the temperature, dewpoint and vertical motion fields. Comparisons will be made with lake effect storm structure and sea breeze thermal patterns, both horizontally and vertically