FLOWER MOUND, Texas - Scattered wildfires in North Texas have forced evacuations, led to road closures and prompted emergency officials to warn about smoky areas.

Authorities had no reports of anyone hurt Monday in the grass fires with temperatures in the 50s and wind gusts in the teens.

The Flower Mound Fire Department on Monday afternoon said parts of U.S. 377 were closed. Spokesman Brandon Barth says a brush fire that started on a ranch Monday burned about 100 acres before crews stopped flames from reaching nearby homes.

Flower Mound is 25 miles northeast of Fort Worth. 

Thick smoke from a fast-spreading wildfire has closed about 16 miles of Interstate 20 in North Texas.

 The Texas A&M Forest Center said the Monday afternoon fire near Willow Park, Texas, 22 miles west of Fort Worth, had scorched about 1,000 acres with zero percent containment.

The smoke and threat from advancing flames prompted the Texas Department of Transportation closed I-20 between Willow Park and Benbrook and Interstate 30 between I-20 and I-820 on the western outskirts of Fort Worth.

Wind gusts of 35 mph from the west and relative humidity of 25 percent or less combined to place all of North Central Texas under a red-flag warning for wildfires. Homes in a rural subdivision and a school have been ordered evacuated near the so-called Farmers Road Fire near Willow Park.