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A heat dome stretching from the Rockies to the East Coast is pushing temperatures above 100 degrees across the central United States.

A high-pressure system known as a heat dome is currently trapping warm air across the midsection of the United States, pushing temperatures into the triple digits for much of the South and central regions. In areas such as Texas, Oklahoma, Kansas, Louisiana, and Arkansas, temperatures have exceeded 100 degrees over the past week. The heat dome is also creating a significant temperature contrast with cooler air to the north and east, which is fueling a series of storms and potential flooding in the Northeast and Great Lakes regions. While the Southeast and central regions experience high daytime temperatures, nighttime lows are expected to remain high, with many areas staying in the 70s or 80s. In the Northeast, the heat dome is acting as an obstruction in the jet stream, allowing storms to ride around its edges. These storms are expected to bring rain and potential flash flooding to the Midwest and New England starting Sunday afternoon. In the West, monsoonal moisture is fueling scattered thunderstorms and flash flooding in Arizona and Utah. In the Grand Canyon, 62 people were air-evacuated from the Phantom Ranch area following a flash-flood event, and the National Park Service is seeking information on more than 20 individuals who may be missing.

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