A dangerous heat wave will remain at its peak on Tuesday in the East. Here are the forecast details including how hot and when relief will arrive.

Here's the very latest on the impacts this heat wave is having on tens of millions.

A heat dome is a high-pressure system that traps hot air underneath it, leading to prolonged, dangerously high temperatures with little relief day or night.

Last body found after boat capsizes on Lake Tahoe in sudden storm, bringing death toll to 8.

Soaring temperatures, including a 107 degree heat index, forced officials in Paterson, New Jersey to cut short a district-wide graduation ceremony after several attendees were sent to the hospital, prompting a citywide state of emergency.