The National Weather Service has issued a tornado watch for all of eastern Colorado as a line of severe storms packing high winds and hail sweeps across the plains.

Weather Service meteorologist Kyle Fredin says a trough of low pressure is creating a "large extensive line" of severe weather along the Front Range from southern Colorado to the Wyoming border. Several tornados were reported Sunday, including one in the tiny northeastern Colorado town of Grover and two in Park County. Fredin didn't know if any structures were damaged.

Meanwhile, the Aurora Fire Department says a tornado touched down near the Blackstone Country Club southeast of Denver, causing one minor injury and flipping an empty trailer.

The tornado watch along the eastern plains is set to expire at 8 p.m. Sunday.