Nathan Heffel

Heavy firefighting air tankers are one of the most visible resources being used to fight the High Park Fire. The cost to fly and maintain the large aircraft is not cheap, and will continue to increase as the fire remains relatively uncontained.

A wildfire burning west of Fort Collins has now scorched more than 20,000 acres and damaged or destroyed at least 18 structures over the weekend. Hundreds of people and animals have been evacuated as the fire continues burns out of control.

Despite two recent air tanker crashes in Utah and Nevada, and multiple large fires across the country including the now 8,000+ acre High Park Fire northwest of Ft. Collins, the US Forest Service says it remains fully capable of fighting multiple fires from the air.

Another round of severe storms raged across Northern Colorado last night, bringing up to one inch in diameter hail, heavy rain, and reports of tornados. We've gathered some audio, video and tweets from the latest wave of severe weather.

Saturday marks the 5th annual National Get Outdoors day, and admission to National Parks across the country and in Colorado will be free.