LARIMER COUNTY, Colo. -- A line of powerful storms developed from Idaho Springs to just west of Fort Collins Thursday afternoon.
Lightning strikes from the storms hit nine people at the Grant Family Farm near Wellington north of Fort Collins. A 65-yuear-old woman was struck by lightning in Rocky Mountain National Park at midday.
The National Weather Service issued a Flash Flood Warning for Boulder and Larimer Counties that lasted until 6:00 p.m. The heavy rain caused problems at fire zones in both counties.
Runoff from slowly moving storms today will cause minor flooding of creeks, streams, roads and culverts in the 4Mile burn area. #4mile
— Boulder OEM (@BoulderOEM) July 18, 2013
The Office of Emergency Management said there was no threat to the city of Boulder.
Earlier, Heavy rain fell over the High Park and Fern Lake fire zones in Larimer County, .
The Larimer County Sheriff's Office says Rist Canyon Rd. from Davis Ranch Rd. to Stove Prairie (The canyon's mouth) was closed because of heavy rain and flooding. A couple of mudslides did close Highway 14 in Poudre Canyon for a while. The roads reopened before the flood warnings expired.
The National Weather Service says heavy rain over the High Park burn scar had potential to cause flooding and mudslides.
"Thunderstorms with heavy rain will be around this evening for the entire Front Range," says Chief Meteorologist Dave Fraser. "These storms are moving slow and have the potential to dump flooding rain. Most of the storms will end by midnight."
Temperatures were expected to cool into the low 80s Friday when there was an even better chance of strong storms in the Denver area.