Why tornadoes are among a hurricane’s potent threats

Hurricane Irma wasn’t the only vortex that the southeastern US had to worry about Sunday. The cyclone spawned tornadoes in parts of Florida in the morning and afternoon and could produce more — typical of hurricanes that get enough of their circulation over land. Most of Florida and parts of Georgia were under tornado watches Sunday as the hurricane’s destructive core powered its way into Florida’s Gulf Coast, and tornado warnings followed. One tornado damaged homes in ea