what is a heat dome

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A heat dome is causing record-breaking dangerous heat across parts of the US.

A heat dome is a meteorological phenomenon where a high-pressure system traps warm air in a region, causing temperatures to soar. Currently, a heat dome is affecting approximately 250 million people in central and western United States, including Texas, Oklahoma, Nebraska, and North Dakota. This event is producing extreme heat conditions that are breaking temperature records and posing significant health and safety risks.