21 million people under heat alerts amid record-shattering temperatures

Heat alerts are in effect for 21 million people in areas that include the Southwest and southeast Florida. The scorching temperatures could reach new highs on Friday, after Phoenix and Las Vegas broke records Thursday, hitting 113 degrees and 111 degrees respectively. NBC News' Liz Kreutz has the latest.

https://www.nbcnews.com/nightly-news/video/21-million-people-under-heat-alerts-amid-record-shattering-temperatures-21254...  more
21 million people under heat alerts amid record-shattering temperatures
Heat alerts are in effect for 21 million people in areas that include the Southwest and southeast Florida. The scorching temperatures could reach...
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