A life-threatening heat wave has enveloped the East Coast, hitting cities with the worst of the high temperatures on Tuesday before relief moves in later in the week. This is the first major heat wave of the season,

More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

After topping 90 degrees June 21 for the first time this year, temperatures in Indianapolis will continue to climb for the next two days.