Science
Friday, 7/3, 05:30 PM
A dangerous heat dome grips the eastern US as the July 4 holiday begins
- A vast 'heat dome' has settled over the eastern and central United States just as the Fourth of July weekend begins, pushing temperatures and humidity to dangerous, in places record-breaking, levels.
- More than 160 million people are under heat alerts, and cities are opening cooling centers as authorities warn the conditions can be life-threatening.