Black ice is a thin layer that forms on surfaces such as roads, sidewalks and driveways when temperatures are 30 degrees or lower.

Conditions are expected to improve Friday afternoon, when the wintry precipitation is forecast to move out of the region.

Ice and snow has been reported on highways across North Texas, including in the northern most parts of the region, according to a map of conditions from the Texas Department of Public Safety.

Several inches of a wintry mix of sleet and snow were forecast to fall over North Texas between Thursday and Friday. This marks the first winter storm of the season. Snow in Dalla

Thursday to Saturday will have another dangerous winter situation in the southern U.S. Here's a timeline on where and when you have to be at a certain location to avoid the danger.

Maintain at least three times the normal following distance on snow or ice. Normal following distance is typically three seconds behind the vehicle in front of you, so on snow, follow five to six seconds behind. Watch carefully for snow removal equipment and stay at least 200 feet behind snow plows.

This week's North Texas snow event will end with a few flurries during Friday's morning commute, leading to hazardous road conditions.

Wintry weather conditions are expected to clear out Friday afternoon after snow, freezing rain and sleet disrupted life for many in North Texas on Thursday. Several North Texas counties, including Collin,

WFAA has all the information you need to make decisions about everything from your commute to where to find the best sledding spots in DFW.