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Did an escaped prescribed fire cause the Lower North Fork fire?

Lower North Fork Fire
Lower North Fork Fire. Photo provided by Jefferson County Sheriff's Office
Lower North Fork Fire
Lower North Fork Fire. Photo provided by Jefferson County Sheriff's Office

On Tuesday afternoon the Colorado State Forest Service released a statement that contributes to the theory that one of their prescribed fires that escaped control may have started the Lower North Fork fire, which as of Tuesday afternoon has burned 4,500 acres and destroyed or damaged 23 homes. An elderly couple was found dead in the burn area, but a cause of death has not been released. The Denver Post earlier on Tuesday quoted Jacki Kelley, a Jefferson County Sheriff’s Office spokeswoman, as saying the fire originated from a controlled burn conducted by the Colorado Forest Service on March 19.

Below is the statement from the Colorado State Forest Service:

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“Preliminary reports indicate that on the fourth day of mop-up operations, following a prescribed burn, extremely strong wind appears to have reignited the fire by fanning embers and blowing them into an unburned area outside the containment line. Crews patrolling the area immediately began fighting the fire.

Last Wednesday (3/21), Colorado State Forest Service initiated a controlled burn on Denver Water Board property. The 35-acre prescribed burn was part of ongoing fuels management activities in the Lower North Fork area as part of a service agreement with Denver Water. On Wednesday, March 21, crews built a containment line around the fire area. The actual prescribed fire was carried out and completed on Thursday, with mop-up operations beginning on Friday.

On Monday afternoon (3/26), during the fourth day of mop-up work, a patrol crew reported windy conditions, but no smoke or fire activity as they circled the burn area several times. The crew reported a sudden, significant increase in wind and then reported seeing blowing embers carried across the containment line, over a road, and into unburned fuels. The crew immediately requested additional resources and began aggressively fighting the fire.

As the Jefferson County Sheriff’s Office further investigates the cause of the current wildfire, Colorado State Forest Service will also be conducting a simultaneous review of the prescribed burn. Conducting a prescribed burn involves a considerable amount of planning, research and oversight by fire professionals who carefully consider current and future weather forecasts, fuel conditions, and other factors before initiating a prescribed burn. On preliminary review CSFS officials say fire crews followed all procedures and safety protocols in conducting the prescribed burn. An independent panel will now fully review the prescribed burn and the procedures surrounding it.

Joseph A. Duda

Deputy State Forester

Colorado State Forest Service”

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More information about the Lower North Fork Fire, from March 29.

 

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