00:00A historic heat dome has locked 38 U.S. states into a life-threatening heat emergency.
00:05The National Weather Service reports heat index values between 110 and 115 degrees Fahrenheit
00:12in Washington, D.C., New York, Chicago, and Nashville.
00:19While overnight temperatures remain above 80 degrees, at least 25 Americans have died,
00:25and emergency rooms across the southeast are overwhelmed with patients suffering from heat
00:30stroke and heat exhaustion. Nearly 800,000 households lost power over the July 4th weekend
00:36as electricity demand surged during the extreme heat. Forecasters say this is one of the most
00:42widespread summer heat events in years, with more than 200 million Americans facing dangerous
00:47conditions. The heat dome is beginning to shift, but a new round of severe thunderstorms is expected
00:53across the Mid-Atlantic on Wednesday, bringing an additional weather threat.
00:58Officials urge everyone in affected areas to stay hydrated, seek air-conditioned shelter,
01:04and never underestimate extreme heat. It can become deadly within hours.
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