Heatwaves scorch millions across the East Coast with New York City and Boston seeing highs of over 100F

Extreme heatwaves scorched parts of the U.S. on Tuesday, including on the east coast, where several major cities including New York and Boston climbed to triple-digit temperatures.

John F Kennedy International Airport recorded 100 degrees Fahrenheit (38C) at midday – the first time since 2013 – according to the National Weather Service, which described conditions as “extremely dangerous.”