The dangerous heat is now set to impact the Northeast and mid-Atlantic through Friday, while continuing from the Great Lakes to the Deep South. Extreme Heat Warnings are in effect along the Interstate 95 corridor from just outside New York City to Philadelphia where feels-like temperatures could exceed 105 degrees. St. Louis, Memphis, Little Rock and Jackson could all see heat indices as high as 115 degrees. Be sure to stay hydrated, limit time outdoors if possible and keep a close eye on family and friends.