Morrison, Colorado - The name of a man believed to have been struck and killed by lightning while jogging in Matthews Winters Park in Morrison Friday, has yet to be released.

The Jefferson County Sheriff's Office and the Foothills Fire Department say the man, who is believed to be around 20 years old, was struck in the park around 6 p.m. The park is along Highway 93 near I-70 north of Red Rocks.

The man was found by two mountain bikers about three-quarters of a mile up from the trailhead.

Rescuers performed CPR on the man at the scene but he did not survive.

Jefferson County Sheriff's Office spokesperson Jacki Kelley says it appears the man was a jogger because he was in jogging clothing.

Kelley says the weather had been nice in the area early on Friday afternoon and the storm is a reminder of how fast conditions can change in the foothills.

"This man was out here enjoying the day," said Kelley. "We would ask that people continue to be really cognizant of the weather forecast, the conditions that we deal with up in the mountains, and to be aware. When the dark clouds start rolling in and the rain starts to fall, it's time for you to get back to your cars or seek shelter, if you find yourself caught out there, then you need to take caution."

The Sheriff's Office said Saturday the man's name will be released after his family is notified.