👉 Over 100 million people in the US will face dangerous conditions due to the heat dome
👉 Heat advisories are in place across the north-eastern coast and the south-east
👉 Daytime heat index temperatures are expected to be 10 to 15F above average in some places
👉 Overnight temperatures will be very warm and oppressively muggy
👉 The heat index is expected to exceed 115F in some areas
👉 Certain groups are at highest risk, including children, older people, and those with existing physical and mental health conditions