friday marked the single busiest day in the skies ever. add in 34 million at risk of severe weather and we have a potential recipe for a travel disaster. we have your forecast and when you may want to steer clear of the roads. plus, a weekend of gun violence in america, at a nightclub in kansas and a block party in baltimore, injuring dozens and claiming two lives. what we re learning about these mass shootings. later, the ride of a lifetime that no one asked for. the scary moment at an amusement park that should give everyone pause. it makes me second-guess guesting on a roller coaster now. let s begin with what you need to know as you get ready for your independence day celebrations. sizzling temperatures and severe storms in the forecast while americans set travel records not seen since before the pandemic. aaa projecting nearly 51 million people will travel 50 miles or more from home as a storm system moves down over the carolinas and 36 million people under heat
and it has been ten years since the yarnell hill fire claimed the lives of 19 firemen. we ll look back at their legacy, how that wildfire and climate change have crews changing their strategies. that s coming up. we re going to start, though, with extreme weather across the country, from heat waves to heavy winds and rain, cancelled outdoor celebrations and even ruined some travel plans over the holiday weekend. nbc meteorologist michelle grossman, with what we can expect. and first, here s blayne alexander. reporter: there s no question summer is in full swing, if you doubt it, just step outside. millions of americans are dealing with record-breaking temperatures, and it s not just inconvenient, it s dangerous. between the dangerous heat and severe storms, mother nature really is bringing a one-two punch. overnight, we saw severe weather hit places in alabama. we ve also seen the weather turned deadly, turns trees over, including crushing one woman in her car in missouri
it from happening again. for more information on what you can do in a hurricane and how to help combat the growing climate crisis, please go to cnn.com/violentearth. i m liev schreiber. thanks for watching. good night. [siren blaring] police officer: i need traffic stopped, southbound 10. steve pyne: fire has been on earth as long as plants have been on land. police officer: follow me! follow me! steve pyne: but we get a big shift when a species arrives who can start fire at will. police officer: go, go, go, go! go south! steve pyne: i think humans have been changing the earth for a long time. police officer: come down this way! come down this way! steve pyne: we ve lost the ability to understand how fire works and how it can be used to our advantage. police officer: [indistinct] the fire has jumped the road. this is bad. steve pyne: we ve mismanaged fire. now we get fires that are really off the scale, shouldn t be here, shouldn t be behaving in this way. and now we re left
i m liev schreiber. thanks for watching. good night. [siren blaring] police officer: i need traffic stopped, southbound 10. steve pyne: fire has been on earth as long as plants have been on land. police officer: follow me! follow me! steve pyne: but we get a big shift when a species arrives who can start fire at will. police officer: go, go, go, go! go south! steve pyne: i think humans have been changing the earth for a long time. police officer: come down this way! come down this way! steve pyne: we ve lost the ability to understand how fire works and how it can be used to our advantage. police officer: [indistinct] the fire has jumped the road. this is bad. steve pyne: we ve mismanaged fire. now we get fires that are really off the scale, shouldn t be here, shouldn t be behaving in this way. and now we re left with these monsters. and it is remaking the world. police officer: (voice breaking) it s all bad up here, brother. it s all bad. oh, my god. [thunder crackling] welco
and what you can do to combat the climate crisis, go to cnn.com/violentearth. i m liev schreiber. thanks for watching. good night. [siren blaring] police officer: i need traffic stopped, southbound 10. steve pyne: fire has been on earth as long as plants have been on land. police officer: follow me! follow me! steve pyne: but we get a big shift when a species arrives who can start fire at will. police officer: go, go, go, go! go south! steve pyne: i think humans have been changing the earth for a long time. police officer: come down this way! come down this way! steve pyne: we ve lost the ability to understand how fire works and how it can be used to our advantage. police officer: [indistinct] the fire has jumped the road. this is bad. steve pyne: we ve mismanaged fire. now we get fires that are really off the scale, shouldn t be here, shouldn t be behaving in this way. and now we re left with these monsters. and it is remaking the world. police officer: (voice breaking) it s