Nathan Matthews, 43, Dies as 4th Firefighter From June 27 Colorado Burnover

Q: What fatal miscalculation during the Knowles Fire led to a highly trained helitack crew being trapped with no escape route?

The fatal miscalculation appears to have been committing the Rifle Helitack crew to initial attack in Knowles Canyon under fire conditions that changed faster than expected, leaving them without a viable escape route when winds shifted and the fire made a sudden run. What is publicly established so far is that the crew was flown in to help check the rapidly growing Knowles Fire, and then a burnover occurred when erratic winds and extreme fire behavior cut off their exit. Officials and reporting from the scene indicate the firefighters died because they had “no escape route” after the flames overtook their position. They deployed emergency fire shelters, but the fire intensity was too great. There is not yet an official final finding identifying a single tactical error, because a serious accident investigation is still underway. But the central issue described in available accounts is that the fire’s speed, wind-driven change in direction, and the canyon terrain appear to have been underestimated or outpaced the crew’s ability to withdraw. In practical terms, the likely misjudgment was believing the crew could safely engage the fire from that location and still retain a usable route to safety. When conditions shifted, that assumption collapsed, trapping even a highly trained helitack team.

3 articles · Updated · The Guardian · Jul 25

Nathan Matthews, 43, died Friday from burns suffered in the June 27 wildfire near the Colorado-Utah border, becoming the fourth firefighter killed in the incident.
The helitack crew had been dropped into remote Mesa County, Colorado, when a fast-moving fire overran them in a burnover, cutting off escape routes and forcing them to deploy emergency shelters.
Emily Barker, 38, Nick Hutcherson, 27, and Sydney Watson, 26, died at the scene, while Matthews and one other firefighter were taken for treatment; officials gave no new update on the survivor.
The deaths come as the western US battles dozens of large fires fueled by dry weather, low snowpack, heat and erratic winds, with crews also watching a threatening blaze near Bend, Oregon.