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.

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.

In western Colorado, firefighters are up against windy, hot weather as they try to protect homes and infrastructure from a pair of lightning-caused wildfires.