Freezing rain may create slick driving conditions

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ST. LOUIS, MO (KTVI)-A winter storm remains on track for the St. Louis region. With borderline temperatures, this storm looks to be a freezing rain maker for St. Louis. The main batch of precipitation moves into the St. Louis area around midday Sunday and will continue overnight.

Extra: What causes freezing rain?

The recent cold air blasts have frozen the ground. Even if air temps are slightly above freezing, rain water may freeze on contact with the already frozen ground or cold objects like cars and light poles.

While this won't be significant icing situation, it doesn't take much to cause problems. A light glazing up to 1/10" of ice accumulation is possible by Monday morning, especially south and southeast of St. Louis.

That thin glaze of ice on roads, especially elevated bridges and overpasses, can mean a mess for drivers. A build up of ice can’t be plowed, so area road crews will count on salt to keep roads clear.

MoDOT began pretreatment with salt brine on Friday and will have a full crew on hand Sunday. IDOT pretreated bridges early and will have trucks ready to lay down salt once the precipitation begins. Drivers should be sure to slow down, have their headlights are on, and stay back from salt trucks by at least 100 feet.

The threat of ice and some snow continues into the early hours of Monday, so the morning commute may be affected.

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