The wind speed was just two miles an hour shy of Category 5 status when it hit.
Scott declared a state of emergency in 35 Florida counties.
At least 13 storm-related deaths have been reported in El Salvador, Honduras and Nicaragua.
A storm surge of eight feet left beach-fronting roads and buildings under water, and its strength was the concern as it moved across the Florida Panhandle into Georgia.
Once they finally punched through Hurricane Michael's eyewall, Disharoon and the rest of the Hurricane Hunter crew were treated to a spectacular sight.
Michael has already knocked out power to a quarter of a million homes and businesses, as power lines were smashed by falling trees.
The ultimate effect of Michael will take weeks to assess, but initial reports likened the ravages to that of Hurricane Andrew, which hit south Florida in 1992 causing $25billion in damages and took nearly two years to rebuild from.
Last month's Hurricane Florence had winds of as much as 137 miles per hour off the US coast, but dropped in intensity prior to the storm's landfall in the Carolinas.
In Georgia, an 11-year-old girl died when a vehicle port flipped into the air by a gust of wind landed on her home, Travis Brooks, head of the emergency relief agency in Seminole County, told AFP.
"The devastation is just disgusting", Parker said of Port St. Joe, where he moved two years ago from IL. A few houses and other structures remain standing, but they're the exceptions.
As of Thursday morning, more than 500,000 customers still don't have their electricity restored across Georgia, Florida and Alabama.
This year, we've seen just how destructive and deadly hurricanes can be, but the giant storms can also have a certain beauty to them.
It made landfall on the coast as a Category 1 hurricane on September 14 and drenched some parts of the state with 40 inches (101 centimeters) of rain.
Though the storm has weakened, it is continuing on a unsafe path across the southeast states. So far that request has not been made, as Florida has 2,300 of its own Guard forces activated, and due to its long history with hurricanes, has aircraft and ground supplies set to respond.
Sgt. Angela Hightower did not identify the man but said he had been found at the home in Greensboro around 6 p.m.
"Michael is forecast to re-strengthen some Thursday night and Friday when it moves off the east coast of the United States and becomes a post-tropical cyclone on Friday", the NHC added.
The National Weather Service office in Tallahassee issued a dramatic appeal for people to comply with evacuation orders.