Several tornadoes were reported Sunday, including one in the tiny northeastern town of Grover and two in Park County. County spokeswoman Linda Balough says no injuries have been reported, but there has been some damage.
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.
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.
The tornado watch extends to 8 p.m. Sunday.