Old Dominion's football game at Charlotte (North Carolina) has been moved up to Thursday because of Hurricane Florence.
So, what's the worst that could happen?
To show the size and power of the storm, a number of photos taken Monday from the International Space Station and astronaut Ricky Arnold show Florence's girth as the storm churns across the Atlantic Ocean.
Hurricane-force winds will bring down trees and damage homes and businesses.
"This storm is about flooding", Perry Samson, a professor of climate and space science at the University of MI, told Live Science.
"This will likely be the storm of a lifetime for portions of the Carolina coast", the National Weather Service in Wilmington, N.C., said, "and that's saying a lot given the impacts we've seen from hurricanes Diana, Hugo, Fran, Bonnie, Floyd, and Matthew".
"Hurricane Florence is looking even bigger than anticipated", Trump said.More news: Trump declares disaster in 8 North Carolina counties
Numerous beach communities expected to be impacted by Hurricane Florence have livestreams to monitor the surf conditions.
All that water is worrisome for a region that just had a rainy season, meaning the soil there is fairly saturated and the rivers there are already high.
As for people staying put, the authorities used to advise that people get three days' worth of supplies, but now it's best to get two weeks' worth of supplies, Sue Anne Bell, an assistant professor of nursing at the University of MI, told Live Science.
The percentage of customers who may be affected by power outages following Hurricane Florence.
The storm is expected to being heavy rain, powerful winds, and a strong storm surge. Jeff Byard of the Federal Emergency Management Agency invoked a former boxing champion to warn residents that it would bring "a Mike Tyson punch to the Carolina coast".
Axios: "The ties between Hurricane Florence and climate change" - "Hurricane Florence is a unique Atlantic hurricane, projected to stall out after hitting land and forecast to dump upwards of 2 feet of rain on several states, much like Hurricane Harvey did in Texas previous year".More news: The changing death toll from Hurricane Maria
Manure lagoons are about as pleasant as they sound-vast open-air ponds of manure located next to the many hog farms near the North Carolina coast.
On Wednesday, we got an inside look at the planes at Lakeland Linder Airport.
Floodwaters could also spread mercury-containing coal ash that's held in pits operated by Duke Energy, the state's main electricity company, the AP reported. "We just need to keep getting the most accurate and recent data we can for the models and forecasters".
Emergency preparations in the area included activating 2,800 National Guard troops in North Carolina, stockpiling food, setting up shelters, switching traffic patterns so that major roads led away from shore and securing 16 nuclear reactors in the three-state region.
"This system is unloading epic amounts of rainfall, in some places measured in feet and not inches", North Carolina Governor Roy Cooper told a news briefing.
However, since the Fukushima disaster in 2011, US power plants have installed more safety equipment, such as waterproofing, portable pumps and generators, Duke Energy spokeswoman Mary Kathryn Green told Reuters.
"There's still uncertainty on exactly how inland the hurricane does penetrate".More news: Browns offense looks to improve heading into Week 2