St. Louis County Sheriff Gordon Ramsay says the Minnesota Department of Natural Resources and the U.S. Forest Service expect Tuesday to be another "heavy fire day" with more "dangerous conditions."

Three major wildfires raging out of control in the same Minnesota county have burned more than 20,000 acres combined.

The Camp House Fire is nearly 12,000 acres; Jenkins Creek Fire is 6,800 acres; and Munger Shaw Fire is 1,400 acres. All are zero percent contained.

Wildfires have exploded in size across parts of northeastern Minnesota north of Lake Superior, destroying at least 40 homes and buildings, as unseasonably high temperatures and low humidity will continue to drive dangerous fire weather on Tuesday.

Due to their close proximity, fire officials have merged the Camp House and Jenkins Creek fires into one entity, now called the Brimson Complex Fire.

(ABC 6 News) — As fires continue to blaze across northern Minnesota, wildfires have become a growing trend in the state. Governor Tim Walz says the state typically sees about 100 wildfires per year, but so far this year, we’ve already had 970. On Sunday alone, 40 were reported.

Ramsay added: "A third large fire is burning currently on both sides of Munger Shaw Road south of Three Lakes Road moving quickly in a northern direction. Residents in the east half of Cotton Township including Morley Beach Rd, Elde Road and surrounding areas should evacuate."

Dozens of structures have been lost to wildfires in northern Minnesota, and cabin owners are wondering what they can do to protect their property.