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DECATUR — An unseasonably early snowfall may create slippery road conditions Friday morning in Macon and surrounding counties, according to the National Weather Service in Lincoln. One inch of snow accumulation is possible following overnight snow showers.

Rain is likely before 10 p.m. Thursday. After that, there will be a rain-snow mix from 10 p.m. to 2 a.m. followed by pure snow starting at 2 a.m. Friday.

“Some melting and refreezing of the snowfall Thursday night is possible on area roads, which could lead to some slick spots for the Friday morning commute,” according to the hazardous weather outlook.

Temperatures are going to be around freezing and if the roads haven’t been treated yet, they may have slippery spots, said National Weather Service Meteorologist Chris Geelhart.

“We tend to get worried this time of year because people haven’t been driving on the snow for months and are out of practice,” he said. “We give a heads up for people to have a little extra caution.”

Geelhart said the snow shouldn’t last too long and should melt by the time people are driving to work. The majority of accumulation will be on grassy areas or elevated surfaces, he said.

“We are getting an unseasonably cool air mass coming down from Canada, usually, a storm like this would be a cool rain,” he said.

This is an early snowfall for this area, Geelhart said. On average, the first snow is Dec. 12. The last time it snowed an inch before Nov. 10 was on Nov. 6, 1993. The average temperatures for this time of year are the mid-50s, he said.

“It is going to remain very cold for the next several days,” he said. “The latter part of next week (will be) closer to normal for temperatures.”

Precipitation is possible and would alternate between rain and snow throughout the day Friday. The daytime high is 38 degrees. Nighttime temperatures could reach a low of 20 degrees.

Saturday morning temperatures are expected to be in the upper teens to 20s.

“These temperatures will combine with breezy conditions to create wind chills in the single digits for early Saturday morning,” according to the hazardous weather outlook.

The snow chances remain for Sunday through Tuesday with light accumulation possible.

The hazardous weather outlook is in effect for the following counties: Cass, Champaign, Christian, Coles, DeWitt, Douglas, Edgar, Fulton, Knox, Logan, Macon, Marshall, Mason, McLean, Menard, Morgan, Moultrie, Peoria, Piatt, Sangamon, Schuyler, Scott, Shelby, Stark, Tazewell, Vermilion and Woodford.

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Contact Claire Hettinger at (217) 421-6985. Follow her on Twitter: @ClaireHettinger

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Public Safety Reporter

Public safety reporter for the Herald & Review.

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