As Hurricane Barry exits stage left, people living in the eastern half of the United States will face oppressive heat later this week. NOAA WPCBefore I answer those questions, a quick review of the "heat index" is required. Areas represented by brown are projected heat index values in the 100 to 105 degree F range. The map below is equally worrisome for me because it shows the minimum heat index for the continental United States. Large swaths of the eastern U.S. will experience minimum heat index values in the 75-80 degree F range by Friday.
Source: Forbes July 16, 2019 15:48 UTC