00:00A massive heat dome is settling over much of the central and eastern U.S.,
00:04threatening to make this Independence Day one of the hottest on record for millions of Americans.
00:09Cities from Charlotte to Cleveland and even New York City could see temperatures in the upper 90s and low 100s,
00:16with humidity making it feel as hot as 115 degrees.
00:20Forecasters warn that the real danger is the lack of overnight relief,
00:24as temperatures may stay in the 70s and even 80s after dark,
00:27increasing the risk of heat-related illnesses.
00:30Officials are urging people to stay hydrated, limit outdoor activities,
00:34and check on vulnerable neighbors as more than 100 million Americans face dangerous heat alerts.
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