Nine wildfires continued to burn across Utah as the first week of August came to a close.

Topping the list is the Widemouth 2 Fire in Millard County, which was 19% contained as of Friday, according to Utah’s wildfire website. That fire has burned more than 105,000 acres, or 164.7 square miles — roughly the same land area as Salt Lake City, West Valley City, South Salt Lake and Taylorsville combined.

The Widemouth 2 Fire was first reported on July 26, and is believed to have been sparked by lightning, fire officials have said. The fire started small, but hot and windy conditions caused it to explode last weekend, threatening homes and prompting evacuations in southeast Fillmore.

The National Weather Service issued an extreme heat warning on Thursday night for much of the state from noon Friday to midnight Sunday night.

“Dangerously hot conditions with temperatures up to 103 [are] expected with little overnight relief through Sunday,” the weather service said.

The area covered by the heat warning includes the northern Wasatch Front, Salt Lake Valley, Tooele Valley, Rush Valley, the Great Salt Lake Desert and Mountains, Castle Country, the San Rafael Swell and western Millard and Juab counties.

Here’s the latest on the other recent Utah wildfires:

• The Black Canyon Fire has burned 2,000 acres in the Manti-La Sal Mountains, about 16 miles east of Ephraim, straddling the line between Sanpete and Emery counties. The fire is 0% contained, fire officials reported Friday morning.

The U.S. Forest Service posted Thursday on Facebook that “the fire remains active on all flanks,” and has reached the mouth of Black Canyon. The Emery County Sheriff’s Office is keeping open the evacuation order it issued Monday for property owners in the Reeder subdivision, the Forest Service said.

• The Dodge Fire, first reported Monday in San Juan County about 10 miles southeast of Monticello, has grown to 90 acres. Fire officials did not list a level of containment as of Friday morning.

• Joining the list of active wildfires Friday is the West Echo Fire, which is burning west of the Echo Reservoir in Summit County. It was first reported around 1 p.m. Friday, had grown to 10 acres by mid-afternoon and, according to fire officials, is human-caused.

• The Little Horse Fire, which started Tuesday in southwest Duchesne County, was 50% contained as of Thursday, according to a post on Utah Fire Info’s Facebook account. That fire has burned 118 acres.

• The Cottonwood Fire that scorched nearly 100,000 acres near Beaver this summer is now considered 95% contained.

• The Babylon Fire, which burned more than 107,000 acres north of San Juan, was listed Friday at 97% contained.

• Utah Fire Info has two recent wildfires listed as 100% contained, though there may be hotspots within the contained areas: the Wild Goose Fire, which burned 12,665 acres in Millard County east of Holden, and the Johnson Canyon Fire, which burned 6,889 acres in Box Elder County north of Tremonton.