U.S Heat Wave Fuels Massive Wildfires Across Southwest

A historic heat wave is fueling dangerous wildfires across the Southwest of the U.S. NBC News’ Kathy Park explains how since early April, the fires have spread out of control, destroying hundreds of homes across 500 square miles. Tune into Top Story with Tom Llamas weekdays at 7 p.m. on NBC News NOW. Top Story Playlist: NBC News NOW is an online streaming network from NBC News where users can find the latest stories and breaking news on world news and US news. » Subscribe to NBC News: » Watch more NBC video: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, li