Eight ships from Tampa, Miami and Galveston in Texas had to be re-routed from the path of Michael, but all three ports are operating normally again and each of Royal Caribbean, Carnival and Norwegian Cruise Line say passengers for the next cruises will not be affected.
River and street flooding, fallen trees and the threat of tornadoes began spreading into central North Carolina on Thursday, prompting the state's governor to urge people to avoid travel until Tropical Storm Michael clears the region tonight or tomorrow.
Brad Rippey, a meteorologist for the US Agriculture Department, said Michael severely damaged cotton, timber, pecans and peanuts, causing estimated liabilities as high as $1.9bn and affecting up to 1.5 million hectares.
The FCC will be updating its outage map daily. After crossing Florida, it was passing through Alabama, Georgia and on to SC.
Four people in Gredsden County, Florida, a driver in Iredell County, North Carolina, and an 11-year-old girl in Georgia has died as a result of the storm. Roofs were peeled away and sent airborne.
The state mental hospital in Chattahoochee, which has a section for the criminally insane, was cut off by land, and food and supplies were being flown in, authorities said. Aluminum siding was shredded to ribbons.
Hundreds of cars had broken windows.
A pine tree broke a hole in their roof and his ears popped when the barometric pressure plummeted. One of the carport's legs punctured the roof and hit her in the head.
Michael had rapidly intensified as it churned north over the Gulf of Mexico in recent days, growing from a tropical storm into a Category 4 hurricane in about 40 hours and catching many by surprise. The Carolinas are still recovering from Hurricane Florence last month.
Michael also disrupted energy operations in the US Gulf of Mexico as it approached land, cutting crude oil production by more than 40 percent and natural gas output by almost one-third as offshore platforms were evacuated.
The number of people in emergency shelters was expected to swell to 20,000 across five states by Friday, said Brad Kieserman of the American Red Cross.