* WHAT...Heavy lake effect snow expected. The highest snowfall accumulations near and over 7 inches will be across far northern parts of the county such as Brewerton, Cicero and Lysander. Accumulations will be considerably lower south of Syracuse. * WHERE...Onondaga County. * WHEN...From 7 AM Friday to 7 AM EST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes. * ADDITIONAL DETAILS...A very tight cutoff with snowfall accumulations is expected.