* WHAT...Heavy lake effect snow expected. The highest amounts over 7 inches are expected west of an Ava to Taberg line. Local amounts around or a bit over one foot. Accumulations will be considerably lower east of Boonville. * WHERE...Northern Oneida County. * WHEN...From 7 PM this evening to 7 AM EST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning and evening commutes. * ADDITIONAL DETAILS...Lake effect snow bands will move back and forth across the area, with uncertainty in snowfall totals. There will likely be a wide range in amounts with a sharp cutoff in snow totals.