California, Arizona, and Nevada Brace for Dangerous Heat Wave

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A dangerous heat wave will impact California, Arizona, and southern Nevada this week, including areas like Las Vegas. An excessive heat warning starts Tuesday in California's Central Valley, with temperatures up to 108 degrees possible. By Thursday and Friday, temperatures could skyrocket to 112 degrees in Las Vegas, Phoenix, and Palm Springs, California. If Las Vegas hits 110 degrees on Thursday, it would be the earliest such hot temperature recorded in June.