Another round of storms has Boulder County officials on alert for possible flooding in areas left bare by wildfires.
Boulder city spokeswoman Sarah Huntley tells the Daily Camera that officials are concerned about the storms expected Tuesday evening because they are slow moving.
The National Weather Service has issued a flash-flood watch for the county, including the mountains west of Boulder stripped bare of vegetation in the Fourmile Canyon wildfire last fall.
Storms are also causing problems at Denver International Airport, where lightning has delayed flights for up to 45 minutes.
Heavy rains have pounded parts of western Colorado, which have seen rainfall of 1 to 2 inches per hour. A slow-moving storm on the eastern plains has dumped 1 to 3 inches of rain in northwestern Elbert County.