A quick-forming thunderstorm produced heavy rainfall and several inches of hail in Ken Caryl on Aug. 22.
The storm resulted in shredded gardens and trees, as well as headaches for Ken Caryl businesses. According to the National Weather Service, the storm dropped just under 2 inches of rain in a short amount of time, setting a new record for the day. The sudden rainfall prompted a flash-flood warning for parts of central and South Jeffco from 6 to 8 p.m. last Thursday.
Flash flooding was apparent on West Meadows Road, where several inches of sediment and rocks had washed over the road. West Chatfield Avenue was inundated with so much hail that Jefferson County Road and Bridge had to use snowplows to clear the road.
Thursday's storm developed after a high-pressure system that had been sitting over the Denver metro area moved off, allowing a massive amount of monsoon moisture from the southwest to move in, said Kari Bowen, a forecaster in the National Weather Service's Boulder office.
When that moisture hit the area, which had been warming all day, the result was the severe thunderstorms, Bowen said.
The Boulder office received reports of 1-inch hail with some as large as 1.75 inches in diameter, Bowen said.
On Friday, parks crews from the Ken-Caryl Ranch Master Association worked to clean up leaves and branches that were scattered around the parking lots, sidewalks and greenbelts, said Victoria DeSair, spokeswoman for the association. The district was still in the process of having buildings inspected for damage.
The heavy downfall infiltrated the roof at the Village Inn on West Ken Caryl Avenue, resulting in severe damage, said general manager Cassandra Samaniego. The business was closed for most of Friday as crews worked to dry things out.
“The storm last night came so fast and furious with all that hail and rain, and it just flooded my roof,” Samaniego said. “Well, the roof couldn’t take all that.”
The storm ruined nearly 150 ceiling tiles and drenched carpets. The business was closed for its normally bustling breakfast and lunch service. Samaniego also had to send servers and cooks home for most of the day. The business might need a new roof as well.
“It’s going to be costly,” Samaniego said.
Ramsey Scott contributed to this report.