The homes of about 10 million were under watches or warnings for the hurricane or tropical storm conditions.
The storm was more than 400 miles off the coast Wednesday, and had winds in the 125 mph range, the National Hurricane Center reported.
As Graham says, "just because you have a landfall to your south doesn't mean you're out of the woods, because the winds are huge around this system".
Tropical Storm Isaac has surely taken many persons on quite the rollercoaster ride.
The National Hurricane Center said Wednesday that Subtropical Storm Joyce has formed in the north Atlantic, but is not now a threat to land.
Forecasters said conditions will deteriorate as the storm pushes ashore early Friday near the North Carolina-South Carolina line and makes its way slowly inland.
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A fourth person reportedly was killed while plugging in a generator in the state's Lenoir County, according to USA media. Roy Cooper said Friday that Florence is "wreaking havoc" and he's concerned "whole communities" could be wiped away.
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Trump's personal lawyer, Rudy Giuliani, echoed that idea, adding that "the president did nothing wrong". But Friday morning provided the latest, strongest evidence that the probe has not been hindered.
Associated Press Trump rejects Hurricane Maria death toll in Puerto Rico
President Donald Trump tours a neighborhood impacted by Hurricane Maria , Tuesday, Oct. 3, 2017, in Guaynabo, Puerto Rico . Trump visited the island in early October to assess the situation amid widespread criticism over the recovery efforts.
At 2 a.m., the storm was centered 625 miles (1,005 km) southeast of Cape Fear, North Carolina, moving at 17 mph (28 kph). Flash flooding is going to be a big issue soon - certainly catastrophic.
Puerto Rico is still trying to recover from Hurricane Maria almost a year after the Category 4 storm hit.
Throughout Monday night Storm Helene will push north-east before clearing quickly to north Scotland on Tuesday morning.
The flooding soon spread into SC, swamping places like North Myrtle Beach, in a resort area known for its white sands and multitude of golf courses.
A storm surge warning was ordered for Myrtle Beach, South Carolina to Ocrakoke Inlet, North Carolina, in addition to the Pamlico Sound in North Carolina, the NHC said.
"This is a life-threatening situation". "The combination of a risky storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline". On Thursday morning, South 17th Street, usually teeming with commuter traffic by 6:30 a.m., was almost devoid of cars.