The string of busted snow chances this winter will likely finally come to an end Tuesday night into Wednesday. This article will help explain the setup and “ingredients” for the storm, known aspects and unusually large uncertainties remaining in this forecast, timing, snowfall amounts, potential impacts, and what lays ahead after this storm.

Lightning branches across the sky outside of the Danforth University Center on Tuesday evening. The storm was part of a large system that spawned tornados across the Midwest.