Winter Weather Advisory issued December 20 at 9:12PM EST until December 21 at 10:00PM EST by NWS Buffalo NY

* WHAT…Snow. Additional snow accumulations 2 to 4 inches.

* WHERE…Wayne, Northern Cayuga, and Ontario Counties.

* WHEN…Until 10 PM EST Saturday.

* IMPACTS…Untreated roadways will become snow covered ad slick.
Travel conditions will likely deteriorate enough, especially
overnight and Saturday, to slow traffic.