Hurricane Andrea (2019)

Hurricane Andrea was an extremely unusual and powerful Atlantic cyclone that attained winds of 180 mph in February. Due to a patch of unusually warm waters of 85 degrees Fahrenheit and no wind shear, Andrea underwent an unexpected rapid deepening phase.

Meteorological History
On February 7, an extratropical cyclone developed off the coast of Florida. Initially producing light rainfall, the extratropical cyclone underwent bombgenesis (rapid extratropical cyclogenesis) and began producing heavy thundersnow and thundersleet throughout the Carolinas, as well as hurricane-force winds. The system became a very strong Winter Storm as it pummeled up the coast of the U.S., with feet of snow being observed in nearly every state north of North Carolina.