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DALLAS A light snow is falling across areas north, northwest and south of the Dallas-Fort Worth area.

The system is moving northeast.

'We have two separate events moving through [North Texas] right now,' said meteorologist Greg Fields at noon. 'The main threat with the snow will be north and west of Dallas and Fort Worth.'

A winter weather advisory remains in affect until 6 p.m. for areas including Denton, McKinney, Waco and Corsicana. Those areas may see up to a half to one-inch of accumulation.

The system will move out of North Texas by Friday night.

At noon, temperatures remained freezing at 26 degrees in Denton, 30 in Dallas and 31 in Fort Worth.

Leftover snow from Thursday's snowfall turned to ice overnight, spurring more school closures.

Azle, Garland, Richardson, Rockwall, Royse City and Weatherford were among some of the North Texas school districts to announce closings Friday morning. Several others districts in the area announced late openings.

Friday morning, WFAA's Alexa Conomos said there were no signs of major problems spots on the roads.

'A big improvement on the roads from about 12 to 15 hours ago,' she said.

Despite the improvements, Conomos encouraged drivers to stay cautious on bridges, ramps and overpasses.

'You don't want to get over confident out there,' she said. 'Take your time.'

Conomos said she received numerous reports of black ice patches. She also warned drivers to take it slow at intersections and on residential streets.

Meanwhile, residents in Jacksboro remain without heat after a contaminated line forced Texas Gas to shut of service to the city Thursday. While some residents stuck it out in their homes, others have kept warm at shelters set up throughout the city.

Service was expected to be restored by Friday night or Saturday.

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