If you live in the central or eastern USA, fill your ice trays and seek shade. A major heat wave is putting 50 million Americans under a heat warning. People in Nashville, Chicago, Kansas City, Philadelphia, New York, Washington DC and many other cities will be fanning themselves as temperatures top 95 degrees. High humidity will intensify the effect. "The prolonged duration of the heat and humidity will potentially become dangerous to those most vulnerable," the National Weather Service warned.... Взято отсюда