Will the remnants of Hurricane Michael hit your military base?

'One Scary-Looking Storm': Watch Michael Arrive in Video from Space Station

'One Scary-Looking Storm': Watch Michael Arrive in Video from Space Station

Now known more for its rains than the strength of its winds, Florence caused devastating floods, killed at least 39 and caused about $45 billion in estimated damages.

Now downgraded to a Category 3, earlier the extremely risky Category 4 hurricane produced winds of up to 250kmh when it made landfall around 1.30pm Wednesday (local time) in Mexico Beach, about 30 kilometres southeast of Panama City.

"This is, unfortunately, a historical and incredibly unsafe and life-threatening situation", said Ken Graham, director of the Miami-based NHC.

About four hours after the hurricane made landfall, the eye of the storm was leaving the Florida Panhandle and approaching southeastern Alabama and southwest Georgia, the NHC said.

They turned out to be correct, as warm ocean waters and a lack of wind shear - which are powerful opposing winds that can topple hurricanes - set the stage for the storm's intensification.

An official with an emergency management agency said Tropical Storm Michael is responsible for a child's death in Georgia.

"I did see something about the hurricane, but I didn't know that it was that close to my hometown", he said.

"Going back through records to 1851 we can't find another Cat 4 in this area, so this is unfortunately a historical and incredibly risky and life-threatening situation", he said.

The St Marks River overflows into the city of St Marks, Florida, ahead of Hurricane Michael.

Never in recorded weather history has a hurricane hit the mainland United States at such a speed in October, the month marking the end of the June to November hurricane season.

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.

Duke Energy reported more than 100,000 outages for customers in North and South Carolina Thursday afternoon and that number continued to grow.

"Next phase of recovery work - going into neighborhoods - providing for the needs of those impacted by the storm, providing resources for people". The hurricane hit the Florida Panhandle as a category 4 storm. Michael's measurement indicates it's more intense than Hurricane Andrew, which hit Florida in 1992 with a pressure of 922 millibars, and Hurricane Katrina, which devastated New Orleans in 2005 when it hit with a pressure of 920 millibars.

It was a category two hurricane by Tuesday, and a borderline category five on Wednesday morning, packing 155mph winds.

Michael had weakened to a Category 1, with maximum winds of 90 miles per hour as of 8:00 pm Eastern time (0000 GMT), but that still left it an extremely risky storm.

As the Category 4 storm's center crossed nearby, Mulligan said, the concrete building shook and vibrated against sustained winds around 155 miles per hour.

"We just need people to be patient", Castor said.