Which event caused limited damage in North Carolina and Massachusetts, which was the first hurricane to threaten the East Coast of the United States, since Hurricane Gloria the previous year?
1986 Atlantic hurricane season:  Hurricane Charley caused limited damage in North Carolina and Massachusetts, but crossed the Atlantic as an extratropical cyclone and caused considerable damage in the British Isles. Hurricane Charley (1986): Hurricane Charley was the first hurricane to threaten the East Coast of the United States since Hurricane Gloria the previous year.
Hurricane Charley