The Cold Brook Fire at Wind Cave National Park has now burned about 6,500 acres.
That number includes the 1,000 acre controlled burn ignited on Monday morning in the park.
At about one o’clock Monday afternoon a gust of wind stirred up a dust devil that carried embers over the fire lines and into dry grasses. Crews then lost control of the burn.
Today the Black Hills is under a Red Flag Warning, this means warmer temperatures and high winds that can fan the flames and make firefighting difficult.