Snow chances grow in SC; winter weather advisory expanded to Richland, Lexington

A fast-moving cold front will bring “wintry precipitation” to South Carolina on Wednesday.

A Winter Weather Advisory has been issued for Richland, Lexington, Kershaw, Edgefield, Columbia, McCormick, Newberry, Fairfield, Saluda and Lee counties from 2 a.m. to 5 p.m. Wednesday.

The advisory means snow is expected. Total snow accumulations of up to one inch are predicted in some areas of central South Carolina, with the greatest impacts north and west of Interstate 20.

Officially via the National Weather Service:

▪  “Snow accumulations are expected to be up to 1-2 inches across the northern and western Midlands, highest across parts of Lancaster and Chesterfield Counties (where up to 2-3 inches is possible in spots).”

▪  “Snow accumulations up to 1 inch possible near and to the north and west of the I-20 corridor.”

▪  “Snow accumulations elsewhere will be less than 0.5 inches and be of minimal impact.”

The National Weather Service in Columbia is asking commuters to plan on slippery road conditions on Wednesday morning.

There could be a period of a few hours on Wednesday when it could rain and snow, according to forecasters. As the day goes on, the precipitation is expected to change from rain to snow, in the hours between 11 a.m. and 1 p.m.

The chance of snow is 50 percent, according to NWS Columbia.

“Be prepared for snow briefly accumulating on roadways, especially bridges and overpasses, which could create hazardous travel conditions,” forecasters say. “Any lingering snow or wet roads could refreeze by late afternoon into evening as temperatures fall back below freezing.”

How much it snows depends on how long heavy moisture sticks around and whether it’ll get cold enough to allow for accumulating snowfall, forecasters said.

Plus, temperatures are expected to reach the mid 50s on Tuesday. That means that the ground may not be cool enough by Wednesday to allow for the snow to accumulate.

Temperatures in the Midlands are expected to remain in the 30s on Wednesday.

Rock Hill is forecast to see as much as 2 inches of accumulation. Around an inch or so of snow is expected in the Upstate, with snowfall expected to end by midday across the state.

The S.C. Department of Transportation announced it is monitoring the weather and its effect on road conditions. Crews have been pretreating interstates since Sunday in areas of the Upstate, according to the DOT.