Hurricane Matthew has left at least 10 dead in North Carolina, Gov. Pat McCrory said Monday, pushing the death toll across the Southeast to at least 21 even as the weakening storm still carried dangers of flooding. Five people also remained missing in Johnson and Cumberland counties, while thousands across North Carolina still lacked power after the storm struck Sunday with downpours and high winds in its slow march up the Atlantic coast, McCrory (R) told reporters. McCrory warned that flooding remained an acute threat to people across central and eastern North Carolina.