 extreme heat has also parked itself over the region. CBS News Philadelphia reporter Kim Hudson. We have a cold red warning right now in Montgomery County, which is right outside of Philadelphia. And that means that the county is doing everything that they can to keep our vulnerable population safe. They're asking people to check in on elderly people. Also check in on people who have to work out in the heat, who cannot escape and who can't go to a pool. They actually have to work