Heat dome brings dangerous temperatures to central U.S.

Dangerously hot temperatures spanned much of the central United States on Saturday as a sprawling heat dome settled over the region, the report said. The pattern could persist into next week, according to the report.

The report described a heat dome as a high-pressure atmospheric system that traps hot air over a large area and keeps temperatures high.

Heat advisories were issued for roughly 80 million people, the report said.

Officials urged caution as the heat persisted, the report said.

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