One of the fires burning now more than 100,000 acres in Rio Blanco County in northwest Colorado continues to grow during ongoing "near-critical fire weather" conditions.

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

The largest of several wildfires in northwestern Colorado grew to over 100,000 acres overnight, prompting new evacuations. Fire crews have made some gains in containing the fire, however, going from 0% to 6% containment.