00:00Right now, a massive heat dome is trapping dangerous heat over 30 U.S. states.
00:05And 230 million Americans are directly in its path.
00:09The National Weather Service is warning of life-threatening conditions through the July 4th weekend.
00:15Heat indices could reach 110 degrees Fahrenheit across the Midwest, Ohio Valley, and into the Northeast.
00:22Cities like New York, Washington, D.C., and Chicago are forecast to hit the upper 90s.
00:28With overnight lows staying in the 70s, meaning there is no overnight relief.
00:33Iowa, Missouri, and Kansas are already under extreme heat warnings.
00:37Here is the real danger.
00:39Heat kills more Americans every single year than tornadoes, hurricanes, and lightning combined.
00:45Emergency room visits surge on days like these.
00:49Officials are urging everyone, especially the elderly and those without air conditioning, to act now before this gets worse.
