The weather service also issued a winter storm warning for Surry County.
The winter weather advisory will be in effect from 3 a.m. to 9 a.m. Saturday in Guilford, Forsyth and Davidson counties, and from 1 a.m. to 1 p.m. Saturday in Davie, Ashe, Alleghany, Watauga, Wilkes, Stokes, Rockingham and Yadkin counties, the weather service said.
The warning will be effect from 1 a.m. to 1 p.m. Saturday in Surry County, the weather service said.
A winter weather advisory means that periods of snow, sleet or freezing rain will cause travel difficulties. A winter storm warning means that a storm can produce heavy snow or significant ice accumulations, the weather service said.
Freezing rain is expected in the Triad, with a light glaze of ice accumulation, the weather service said.
The storm is expected to arrive as freezing rain by 2 a.m. to 3 a.m. Saturday, said John Feerick, a senior meteorologist for Accuweather in State College, Pa.
The precipitation should turn to just rain by mid-morning Saturday, Feerick said.
Crews in Winston-Salem have brined some city-maintained streets and will continue that work Friday, said Keith Huff, the city’s director of field operations.
State crews applied brine Friday to slightly more than 5,000 miles of state-maintained roads and highways in Forsyth, Stokes, Davidson, Davie and Rowan counties, said John Rhyne, a division maintenance engineer for the N.C. Department of Transportation.
Crews will monitor the weather overnight into Saturday and will apply salt to roads and highways, if necessary, Rhyne said.
“By noon (Saturday), the roads should be in pretty good shape no matter what happens,” Rhyne said.
In Northwest North Carolina, snow, sleet and freezing rain are expected, the weather service said. Snow and sleet accumulation may reach 1 inch with ice accumulation up to 0.10 inch.
The weather will result in slippery sidewalks, roads and bridges, the weather service said. Untreated roads and sidewalks will become slick and hazardous.
Bridges and overpasses will be susceptible to ice, the weather service said. Ice accumulation on trees and power lines combined with wind gusts up to 35 mph may result in downed tree limbs and scattered power outages.
Across the mountains in North Carolina, sleet and light snow will fall, before changing to freezing rain and then just rain, the weather service said.
Over the northwest Piedmont, a wintry mix of rain and freezing rain is expected, turning to all rain by late Saturday morning, the weather service said.
Drivers should plan on poor travel conditions and should reduce speed and allow extra time to reach their destinations, the weather service said. Motorists should postpone their travel, if possible.
Saturday’s forecast calls for a 100% chance of freezing rain and rain in Winston-Salem, Mount Airy, Wilkesboro and Boone with high temperatures near 41 degrees in Forsyth County, near 40 degrees in Surry and Wilkes counties and near 37 degrees in Watauga County.
Wind chill values will be as low as 22 degrees in Winston-Salem, the weather service said.
Saturday night’s forecast calls for low temperatures around 31 degrees in Forsyth County, around 30 degrees in Surry and Wilkes counties and around 29 degrees in Watauga County. There is a 30% chance of snow in Boone.