Beginning at noon today, the state will reverse the direction of traffic along certain evacuation routes to ease the flow of traffic away from the coast.
Eastbound lanes on Interstate 26 were set to be reversed Tuesday to facilitate the evacuation of up to a million people from the coast.
"So, as the governor says, we have to err on the side of caution to make sure all of our citizens are safe". "This may be inconvenient".
"This is a very unsafe storm".
On Parris Island, South Carolina, recruits were ordered evacuated from the Marine Corps' biggest training installation on the East Coast.
Schools will be closed in the affected counties and state officials will reverse lanes on four major roads leading to the coast to assist with the evacuation.
On Sunday, South Carolina's state emergency management agency tweeted it was "preparing for the possibility of a large-scale disaster".
WILMINGTON - Hurricane Florence has strengthened into a Category 3 storm with sustained winds of 115 miles per hour, according to the 11 a.m. update from the National Hurricane Center. He described the storm as "extremely large and risky".
Hurricane Isaac was expected to lose strength as it reaches the Caribbean, and Helene, much farther out to sea, may veer northward into the open ocean as the 2018 hurricane season reaches its peak.
It was centred east-south-east of Cape Fear, North Carolina, and moving west. "We have already began mobilizing our assets to respond accordingly, and we are here for you!"
It added that the hurricane should approach the United States coast by Thursday. "This hurricane has the potential to cause life-threatening storm surge, catastrophic wind damage and significant flooding when we expect it to make landfall between Thursday and Friday, and it may slow down inland and unload feet of water".
Warm Atlantic Ocean waters are adding to Florence's strength, and computer models predict that the storm will make landfall Thursday in North Carolina or SC as a major hurricane.
Hurricane Florence's path could still change over the next four days, but it's looking increasingly likely that Charlotte and the city's surrounding communities will feel a taste of the storm's power. The first shows the probability of tropical storm force winds and the second map shows the probability of hurricane force winds.
"North Carolina is taking Hurricane Florence seriously, and you should, too", North Carolina Gov. Roy Cooper said at a press conference.
Hurricane Isaac, stirring in the mid-Atlantic Ocean with twist rates of around 75 miles per hour, is following firmly behind Florence.