Torrid Heat in Large Swaths of US Sets Records, Fans Wildfires

A firefighting helicopter as the Lake Fire burns inear Los Olivos, California.

Photographer: Mario Tama/Getty Images North America
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LOS ANGELES (AP) — A long-running heat wave that has already shattered previous records across the U.S. persisted on Sunday, baking parts of the West with dangerous temperatures that caused the death of a motorcyclist in Death Valley and held the East in its hot and humid grip.

An excessive heat warning — the National Weather Service's highest alert — was in effect for about 36 million people, or about 10% of the population, said NWS meteorologist Bryan Jackson. Dozens of locations in the West and Pacific Northwest tied or broke previous heat records.