Hurricane Dorian is expected to bring a “life-threatening storm surge” up the US east coast after causing widespread destruction in the Bahamas.
Residents from Florida all the way up to Virginia are warned to listen to emergency advice as the category two hurricane slowly moves north.
The storm has weakened after killing at least 20 people in the Bahamas.
Dorian is currently east of the state of Georgia moving north at about seven miles per hour (12km/h), with maximum sustained winds of 115mph (185km/h). It is expected to turn north on Wednesday night.
The US National Hurricane Center (NHC) warned of a “life-threatening storm surge and dangerous winds” for the coasts of Florida, Georgia, North and South Carolina, and Virginia, all the way up to Chesapeake Bay.
The scope of the damage and humanitarian crisis was still unfolding as aerial video of the Abaco Islands in the northern Bahamas showed wide swaths of destruction, miles of flooded neighbourhoods, littered with upturned boats, and shipping containers scattered like toys. Many buildings had walls or roofs partly ripped off.
Officials warned the current death toll is likely to rise.