A dangerous, record-breaking heat wave will spread over the eastern United States and is expected to last several days.

Extreme heat warnings have been issued in Illinois, Minnesota, Massachusetts, Nebraska, Pennsylvania, Missouri, Wisconsin, Michigan, New York, New Jersey, Vermont, Iowa, West Virginia and South Dakota, where temperatures could rise over 110 degrees.

More than 170 million people will experience the highest level of extreme heat on Sunday and throughout the week, according to AccuWeather.

To know more about active alerts in specific areas, follow this link.

Here’s what to know:

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