A major heat wave has blanketed much of the U.S. in scorching temperatures for about a week and in many places the hot spell is far from over.
The extreme temperatures are caused by a heat dome – a high pressure system that pushes hot air down and traps it – that is becoming more common and intense as a result of climate change.
The Midwest is expected to see some relief from the heat after Saturday. But temperatures are expected to peak this weekend from Washington, D.C., to New York.
In Newark, the heat index could go as high as 106 degrees, while New Brunswick could climb to 105 degrees. In Pittsburgh and the surrounding area, the heat index was expected to climb to 105 degrees Saturday.
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