The National Weather Service has issued a winter weather advisory for Scott County and much of East Tennessee in anticipation of light snowfall Thursday night into Friday morning.

The advisory, which was issued by the NWS’s Morristown field office Thursday afternoon, takes effect at 10 p.m. and continues at 6 p.m. Similar advisories were issued by NWS offices in Nashville and Jackson, Ky. for neighboring Fentress and McCreary counties.

A clipper system is expected to impact the region overnight, with moisture moving from Kentucky southeast into Tennessee. The NWS’s forecast calls for one-to-two inches of accumulation on the northern Cumberland Plateau.

After highs in the mid 60s on Tuesday and Wednesday, meteorologists say much colder weather is in store on Friday, with highs failing to climb out of the 20s.

Tennessee Department of Transportation road crews spent part of Thursday afternoon applying brine to local state roads in anticipation of snow.

To date, Scott County’s biggest snowfall of the 2012-2013 winter season is about one inch.

While decisions on schools were not expected until Friday morning, the Scott County School System has eight built-in “snow days” remaining this school year, while the Oneida Special School District has nine.