[2] At its peak, it burned over 304,782 acres (123,341 ha)[1] of land and forced the evacuations of numerous towns, including Conconully, Twisp and Winthrop.

[4] Traditional methods of containing such wildfires, such as creating bulldozer lines, were not readily available due to the irregular terrain and because an inversion layer trapped smoke in the valley, making it difficult to fly in water by helicopter.

[5] On August 24, some media outlets reported that it had become the largest wildfire in Washington state history, surpassing the Carlton Complex fire of 2014.

However, nearly all the fires had continued "to grow with little containment gained" and higher winds were predicted by the end of the week that would feed the flames.

[13] On May 30, 2018, a lawsuit was filed against Okanogan County Electric Cooperative by Daniel Lyon, the lone survivor of Engine 642, who was severely burned in the fire.