One of the largest wildfires ever recorded in Colorado persisted Sunday and a new wildfire sparked in the southwestern corner of the state as gusty winds and low humidity fueled the flames.

A Colorado prison was evacuated as one of the largest wildfires in state history continued to grow, and officials warned residents of remote areas to be ready to leave Sunday as gusty winds and low humidity fed the flames.

Two wildfires caused by lightning strikes were burning out of control in northwest Colorado on Sunday, forcing evacuations that included nearly 200 inmates at a nearby prison. NBC News’ Dana Griffin has more.