"We will continue to work around the clock to prepare".
The wind speeds associated with powerful hurricane Dorian have decreased slightly to 155 miles per hour, but it's still a major Category 4 hurricane.
"We don't even know what's coming at us", Trump said in reference to Hurricane Dorian during a press conference at the FEMA headquarters in Washington D.C. on Sunday. As of 7 a.m., Dorian was about 40 miles east of Freeport in the Bahamas and 115 miles from West Palm Beach, Florida.
"We can walk faster than that", Osterberg said.
Dorian is forecast to remain a hurricane for the next five days, the NHC said.
The US authorities forecast more than 700 millimeters of rainfall for some areas through the weekend and storm surges of over 2 meters.
Hurricane Dorian, a category four storm, is now battering parts of The Bahamas as it heads slowly towards the eastern coast of southern Florida including West Palm Beach, Port St Lucie, and Orlando. The hurricane will then move "dangerously close" to Florida through Wednesday evening.
"Catastrophic hurricane conditions are occurring in the Abacos Islands and will spread across Grand Bahama Island later today and tonight", the NHC said in the 11 a.m. update. Forecasters say that distance could expand.
"It cannot be stressed enough that only a small deviation to the left of the NHC forecast could bring the core of the extremely unsafe hurricane onshore of the Florida east coast within the hurricane warning area", forecasters said Monday.
Hurricane watches were in effect in Florida north of Deerfield Beach all the way to Jupiter Inlet as well as from the Brevard and Volusia county line to the mouth of the St. Mary's River on the border with Georgia.
Gusts of tropical-storm force winds were starting. Dorian is a slow-moving storm and will generate large waves and surge along the east coast for almost two days.
Experts have also warned of a possible storm surge that could send destructive waves crashing into the coast.
The governors of Georgia and SC have ordered mandatory evacuations of their states' coastal areas as of noon Monday. Governor Ron DeSantis suspended tolls on Florida's Turnpike, and some other toll roads across the state. U.S. experts have predicted that Dorian will be some 40 to 50 miles off Florida's coast on Tuesday and Wednesday, with hurricane force winds reaching some 35 miles toward the shore.
In September 2017, almost eight months into Trump's presidency, Hurricane Irma, one of the strongest Atlantic basin hurricane ever recorded outside the Gulf of Mexico and the Caribbean Sea, affected at least nine USA states. Forecasters said Dorian was most likely to begin pulling away from the Bahamas early Tuesday.
A high pressure ridge that has helped steer Dorian to the east is expected to weaken by Sunday night, according to the latest hurricane center forecast discussion, which could slow Dorian to a near-standstill near the Bahamas into Tuesday. A slight fluctuation westward by the storm could bring those tropical storm winds to all of Orange County.
Georgia and SC likely could expect heavy rain and wind in the middle of the week, he said, with "some of watches and warnings eventually being put up for parts of the Southeast coast in the next day or so". Winds increased to 185 miles per hour, which according to the National Hurricane Center is "tied for the strongest Atlantic landfall on record with the 1935 Labor Day Hurricane".