Snowy conditions worsened enough late Saturday night to move Boone County to declare only essential travel as advised.
The county's Level 2 snow emergency declaration shortly before 11 p.m. doesn't preclude people from going to work, according to a news release.
Road conditions are defined as "extremely hazardous" due to snow and ice in a Level 2 snow emergency.
Northern Kentucky counties and cities braced for ice and snow Saturday evening. Some called snow emergencies Saturday afternoon ahead of the cold weather as rain threatened to turn to freezing rain.
Kentucky Transportation Cabinet has warned drivers across the Commonwealth to be alert for wet roads that might freeze into ice overnight.
As of 9:30 p.m., there were about 200 people without power in Boone County. According to Duke Energy, there were 154 without power, with an additional 31 without power from Owen Electric. There are an additional 52 without power in Kenton County and 39 without power in Campbell County, according to Duke Energy.
Duke said power should be restored by 12:15 a.m., according to its website.
Boone County advised only essential travel by declaring a Level 2 snow emergency at about 11 p.m. Saturday night.
Florence, Boone County's biggest city, had no snow emergency as of 9:30 p.m. The city promised on social media to have city trucks and workers out plowing until the streets were free of snow and ice.
Campbell County had not declared a snow emergency as of 9:30 p.m. The county's emergency management agency did remind pet owners to bring animals inside or provide proper shelter from cold.
Kenton County declared a Level 1 snow emergency from 8 p.m. until it is lifted. The snow emergency means no vehicle may be parked upon any public road or right-of-way when there is two inches or more snow.
Crestview Hills Mayor Paul Meier put the city under a snow emergency from 10 p.m. Saturday until 6 p.m. Sunday.
Erlanger Mayor Jessica Fette declared the city's 8 a.m. to 10 p.m. Sunday snow emergency with flair.
"Grab your hot coffee and cozy blanket, it's a chilly, snowy day," said Fette.
Fort Wright has advised residents to move cars off streets in advance of a probable snow emergency declaration.
Park Hills declared a snow emergency at 3 p.m. All cars must remain off city streets.
Taylor Mill is under a snow emergency from 8 p.m. Saturday until further notice.