Winter storm Petra is set to move across the United States, traveling through the American Midwest to the Northeast and bringing with it snow, sleet, rain, and ice. The weather will be felt through to late Wednesday, possibly into Thursday, Feb. 21.
While heavy rainfall—and possible flash flooding—will occur towards the southeast, a wintry mixture of snow and ice is expected for a large part of the Mid-Atlantic region and central Appalachians, the National Weather Service warned.
