Hurricane Florence is slowing down on its way toward the North Carolina coastline, and its peak sustained winds have diminished to 105 miles per hour — but it will bring the storm surge equivalent to a Category 4 and an inland flooding threat of historic proportions. The storm's slow movement means that heavy rain bands will keep forming over the Atlantic and moving over land, causing flooding well inland of the coast.
The big picture: This storm illustrates the limits of the official rankings of hurricanes. The model, called the Saffir Simpson Hurricane Wind Scale, only measures a storm's wind speeds. But hurricanes primarily kill with water, and even though Florence is officially a Category 2 right now, it's setting in motion massive amount of water that will result in a near record surge along the North Carolina coast.