Tonight, dangerous wildfires burning out of control out west.

The largest in Arizona, spreading to more than 100,000 acres, smoke billowing from the Grand Canyon.

A Utah fire prompting a state of emergency.

And this one in California, exploding in size, forcing evacuations.

Down south, flooding and millions under extreme heat alerts and a severe storm

threat on the way tonight. The urgent police search underway in Montana. He is believed to be

armed and extremely dangerous. Authorities warning people to be on the lookout if they leave their

homes while they try to track down this man wanted

in a deadly mass shooting. A suspect accused of threatening lawmakers, police make a shocking

discovery as they move in to make an arrest inside the home. Fourteen explosive devices.

Nationwide protests against the Trump administration as federal officials open a new investigation into the special counsel who charged President Trump.

The event that has a million young people turning out to hear Pope Leo, we're live from Rome.

Caught on camera, burglars making a bold daytime robbery, what police are learning from this

video and the new warning for homeowners tonight. Katie Ledecki making history once again in the

pool. They look like humans and they could be the workers of the future, why humanoid robots

are on the rise across the country. And there's good news tonight

about a hero who came to the rescue and the bond these moms will share forever. This is NBC

Nightly News with Jose Diaz Ballard. Good evening. We begin tonight with a dangerous situation unfolding out west. This was the scene

in central California today. Firefighters trying to contain the Gifford fire. In Utah, the Monroe

fire is prompting the governor there to declare a state of emergency. But it's not just the fires. We're also

seeing really bad air quality in Chicago, just as thousands turn out for the Lollapalooza Music Festival.

And down south, even more flooded. And now millions under a heat alert. Our Dana Griffin is tracking it all for us tonight.

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