Windows are boarded up in Palm Beach, Fla., on August 31, 2019 in preparation for Hurricane Dorian (Photo: The New York Times)

More than 20 million Americans could feel the storm's impact.

Preparations are under way to prepare for the massive storm. The hurricane is expected to slam into parts of the northwestern Bahamas by Sunday. Storm surges there could raise water levels 15-feet above normal.

As of 11 p.m. ET Saturday, Dorian's center was some 125 miles east of Great Abaco in the Bahamas and about 310 miles east of West Palm Beach, Florida, the National Hurricane Center said. The storm is moving west at about 8 mph.

President Donald Trump announced Thursday afternoon that he was canceling his trip to Poland to deal with Hurricane Dorian.

The Vietnamese Embassy in the US has announced its readiness to cooperate with local agencies and the Vietnamese community contact points to support the Vietnamese community in Florida when necessary.