55 Million People Under Heat Alerts in the United States

Much of the western part of the United States is under some type of heat advisory or warning. More than 55 million people are under alerts from Southern California through the San Joaquin Valley and into portions of the northwest including 20 of the most populated cities. Most areas were expecting triple digits beginning yesterday and warming up each day through the weekend then hitting a peak by the end of the week. More than a hundred heat records could fall over the course of this week.