The National Weather Service issued an updated winter weather advisory at 11:48 a.m. on Monday valid from 7 p.m. until Tuesday 1 p.m. for Cayuga, Onondaga, Madison and Cortland counties."Total snow accumulations between 2 and 5 inches," explains the weather service. "The majority of the snowfall will occur early Tuesday morning from around midnight through about 7 a.m. Snow will taper off in the late morning through the early afternoon."