The US Federal Emergency Management Agency (FEMA), which coordinates the federal government's role in preparing for, preventing, mitigating the effects of, responding to, and recovering from all domestic disasters, whether natural or man-made, said the hurricane is expected to stall out after making landfall, and flood inland areas with rain in central and western parts of South Carolina, North Carolina, and Virginia.
Florence is now a Category 2 storm with maximum sustained winds of 110 miles per hour (177 kph), according to the U.S. National Hurricane Center (NHC). They also have prepared their backup diesel generators to make sure the plants have enough fuel to keep producing power.
Federal regulators later required all USA nuclear plants be reinforced against earthquakes and flooding.
"Brunswick is closest to the eye, but every reactor exposed to hurricane-force winds will be shut down", said U.S. Nuclear Regulatory Commission spokesman Joey Ledford told Weather.com.
According to Wired, Duke Energy Corp's Brunswick nuclear power plant, one such facility in Florence's path, has had to undergo numerous safety upgrades since it was built in the 1960s.
Collins said that Duke does not want Brunswick County residents to be anxious about the shutdown, but to focus on staying safe.
A 2004 report from the National Regulatory Commission states that the Brunswick plant is able to survive a storm surge of 22 feet above sea level, the News-Observer reported.
The locations of nuclear power plants in North and SC. As a precaution, the power plant's reactor (s) must be shut down at least two hours before the storm's strongest winds arrive. "The plant also has procedures in place to reinforce what are already robust defenses against flooding to ensure that it will remain safe as the storm passes by".
The two reactors at the site, which entered service in 1975 and 1977, are of similar design to some of the reactors damaged at the Fukushima nuclear plant in Japan after an quake and tsunami in 2011. The company last shut Brunswick due to hurricane force winds in the 1990s, she said. In October 2016, Hurricane Matthew's landfall brought down power lines and flooded transformers, leaving more than two million customers without power across several states.