WRF-ARW maximum radar reflectivity overlaid with 1000 meter horizontal wind vectors. Key feature: maintenance of convection near the central core, and widespread convective and stratiform precipitation along the encircling outer wind maximum on the west and southwest flank of Sandy. Color indicates radar reflectivity in DBZ units. Discussed in Mel Shapiro's presentation at the AMS 2013 Townhall "A research-community perspective of the life cycle of Hurricane Sandy"