More than 40 million people across the Northeast were at moderate risk of excessive rainfall on Sunday, according to the National Weather Service.
At least four people are dead in Pennsylvania after heavy rainfall Saturday evening produced destructive flash flooding, taking residents and drivers by surprise.
It was part of a band of strong to severe thunderstorms sweeping across the Northeast, affecting millions of people from Maryland to Maine.
Authorities in Upper Makefield Township, located along the Delaware River about 30 miles north of Philadelphia, said Sunday morning that three people died after being « swept away » by floodwaters. They said later in the afternoon that a fourth body had been found.
Rescue crews there are also searching for three other people who remain missing: an adult female, a 2-year-old girl and her 9-month-old brother.
« We cannot fathom the grief these families are experiencing and we will do everything we can to assist them during this extremely difficult time, » the township said in a Facebook post.
