Here are some of the best images of Hurricane Florence by Gerst and Ricky Arnold, a fellow NASA astronaut living aboard the ISS.
Earlier today, the orbital post flew directly over the eye of the storm, which offered the astronauts unparalleled views of Hurricane Florence in all her might.
NASA also recorded what it called "stark and sobering" video footage of Florence from the space station on Wednesday.. More news: Justin Rose is new world No 1 but rues play-off loss
"Now a major hurricane with winds of 115 miles an hour and increasing, the National Hurricane Center says Florence's forecast track will take the system over the southwestern Atlantic Ocean between Bermuda and the Bahamas Tuesday and Wednesday, and Florence will approach the coast of SC or North Carolina on Thursday. It's chilling, even from space", said Alexander Gerst, an astronaut with the European Space Agency who now lives on ISS, on Twitter.
"Watch out, America!" Gerst, who joined the crew of the International Space Station in June, said Wednesday in a tweet featuring pictures he took of Hurricane Florence.
"Get prepared on the East Coast, this is a no-kidding nightmare coming for you", he added.More news: Carolinas brace for the worst as monstrous Hurricane Florence nears
The photos in Gerst's post capture Florence mid-churn, winds up to 130 miles per hour whipping around the storm's eye.
An American astronaut posted two additional photographs from the International Space Station, showing the storm aimed at Cape Hatteras, a thin and vulnerable strand of islands that jut out from North Carolina.
This enhanced satellite image made available by NOAA shows Tropical Storm Florence, center, in the Atlantic Ocean on Saturday, Sept. 8, 2018 at 2:45 p.m. EDT.More news: Serena Williams: US Open final umpire makes interesting admission over controversy