Hurricane Dorian, already responsible for 20 reported tornadoes, lashes North Carolina coast

PHOTO: A car drives down a flooded street in Wilmington, N.C., Sept. 5, 2019.PlayAyssa Schukar/The New York Times via Redux
WATCH Hurricane Dorian 'ready to unleash its fury' on NC

Hurricane Dorian battered the North Carolina shore early Friday morning as it continued its northward trek up the coast.

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The deadly storm fell early Friday from a Category 2 storm, with sustained winds of 100 mph, down to a Category 1, with winds of 90 mph, as it passed by Wilmington, North Carolina.

Although the eye of the storm brushed the coastline, Dorian had yet to make landfall as residents in the area braced for flash flooding and near-hurricane-force winds.

On Thursday night the storm passed southeast of Myrtle Beach, South Carolina, pummeling the South Carolina coastline with winds, storm surge and heavy rain .

Both North Carolina and South Carolina have already seen more than 10 inches of rainfall in some areas, and a tornado watch is in effect for Eastern North Carolina and parts of Virginia.

North Carolina is in for a "long night ahead," Gov. Roy Cooper warned Thursday, urging residents to stay inside and "hunker down" until the storm passes.

"Hurricane Dorian is ready to unleash its fury on our state," Cooper said.

Dorian may make landfall in North Carolina between Wilmington and the Outer Banks as it skims the coastline overnight.

"This won’t be a brush-by," Cooper added. "Whether it comes ashore or not, the eye of the storm will be close enough to cause extensive damage."

PHOTO: Dorian Forecast Track Map ABC News
Dorian Forecast Track Map

The coastal Carolinas could see up to 15 inches of rainfall. The combination of relentless rain and a dangerous storm surge as high as 7 feet could cause life-threatening flash floods.

Even those who live farther inland should pay close attention to flood watches and be ready to evacuate if asked to by local officials, Cooper said, noting that cars can be washed off roadways in just a few inches of rain.

By Friday afternoon Dorian will move out to sea, but tropical storm conditions will be possible in Cape Cod when the storm passes by Saturday morning.

Tornadoes reported

Power was knocked out to more than 200,000 homes and businesses across South Carolina Thursday and at least 20 tornadoes have been reported in the Carolinas.

One apparent tornado sounded "like a large airplane or a large train coming through," a resident of Little River, South Carolina, told Florence ABC affiliate WPDE.

PHOTO: Mobile homes are upended and debris is strewn about at the Holiday Trav-l Park, Sept. 5, 2019, in Emerald Isle, N.C, after a possible tornado generated by Hurricane Dorian struck the area. Julia Wall/The News & Observer via AP
Mobile homes are upended and debris is strewn about at the Holiday Trav-l Park, Sept. 5, 2019, in Emerald Isle, N.C, after a possible tornado generated by Hurricane Dorian struck the area.
PHOTO: Emerald Isle town employees work to clear the road after a tornado hit Emerald Isle N.C. as Hurricane Dorian moved up the east coast, Sept. 5, 2019. Tom Copeland/AP
Emerald Isle town employees work to clear the road after a tornado hit Emerald Isle N.C. as Hurricane Dorian moved up the east coast, Sept. 5, 2019.

Charleston's narrow, low-lying streets -- which are prone to flooding -- were submerged with more than 6 inches of rain.

PHOTO: Bill Olesner walks down South Battery Street while cleaning debris from storm drains on Sept. 5, 2019 in Charleston, S.C. as Hurricane Dorian brings wind and rain to the area. Sean Rayford/Getty Images
Bill Olesner walks down South Battery Street while cleaning debris from storm drains on Sept. 5, 2019 in Charleston, S.C. as Hurricane Dorian brings wind and rain to the area.

Residents who didn't heed earlier evacuation orders were urged to shelter in place as the powerful winds downed trees and power lines.

PHOTO: Kelsey Myers looks at an overturned tree in her front yard in Summerville, S.C., after Hurricane Dorian passed by, Sept. 5, 2019, in Summerville, S.C. Mic Smith/AP
Kelsey Myers looks at an overturned tree in her front yard in Summerville, S.C., after Hurricane Dorian passed by, Sept. 5, 2019, in Summerville, S.C.

But Charleston resident Patrick Murray was relieved to see only minor flooding.

"We were kind of expecting the worst ... looks like we escaped the worst of it," Murray told ABC News Thursday. "Our biggest concern was flooding. We've had flooding in the past."

"Not knowing what was coming was probably the only scary part," he said.

One storm-related death struck the Carolinas before Dorian did. An 85-year-old man fell off a ladder while preparing his Columbus County, North Carolina, home for the storm, Cooper said Wednesday.

Tragedy in the Bahamas

Before reaching the United States, Dorian slammed into the Bahamas on Sunday afternoon as a Category 5 storm, the strongest Atlantic hurricane landfall on record.

The death toll in the Bahamas reached 30 on Thursday, but Health Minister Dr. Duane Sands told a local radio station that the final death count will be "staggering."

PHOTO: Aliana Alexis, of Haiti, stands on the concrete slab of what is left of her home after destruction from Hurricane Dorian in an area called The Mud at Marsh Harbour in Great Abaco Island, Bahamas, Sept. 5, 2019. Al Diaz/Miami Herald via AP
Aliana Alexis, of Haiti, stands on the concrete slab of what is left of her home after destruction from Hurricane Dorian in an area called "The Mud" at Marsh Harbour in Great Abaco Island, Bahamas, Sept. 5, 2019.
PHOTO: Debris and destruction are seen in the aftermath of Hurricane Dorian on the island Great Abaco in the Bahamas, Sept. 3, 2019. Lphoto Paul Halliwell/AFP/Getty Images
Debris and destruction are seen in the aftermath of Hurricane Dorian on the island Great Abaco in the Bahamas, Sept. 3, 2019.

The storm hovered over the archipelago's northern islands for nearly two days, leveling homes, flooding roads and submerging an airport.

Bahamian Prime Minister Hubert Minnis said Wednesday that Dorian has left "generational devastation" across the Abaco Islands and Grand Bahama, which are both in the archipelago's northern region, east of southern Florida.

PHOTO: An aerial view of damage caused by Hurricane Dorian is seen on Great Abaco Island on Sept. 4, 2019, in Great Abaco, Bahamas. Scott Olson/Getty Images
An aerial view of damage caused by Hurricane Dorian is seen on Great Abaco Island on Sept. 4, 2019, in Great Abaco, Bahamas.

Princess Margaret Hospital in Nassau, the capital of the Bahamas, is now the only hospital capable of treating the most seriously injured from across the 700-plus islands and cays, according to Dr. Caroline Burnett-Garraway, medical chief of staff at the hospital.

Burnett-Garraway said the hospital has received at least 38 patients, including children, who were medically evacuated from hard-hit islands. Many were subjected to floodwaters and intense winds for days. Their injuries range from severe dehydration to lacerations and broken bones to acute kidney injuries. One patient had to have part of his arm amputated, she said.

PHOTO: A family is escorted to a safe zone after they were rescued as Hurricane Dorian continues to rain in Freeport, Bahamas, Sept. 3, 2019. Ramon Espinosa/AP
A family is escorted to a safe zone after they were rescued as Hurricane Dorian continues to rain in Freeport, Bahamas, Sept. 3, 2019.

"A whole family was in a car and a roof blew off and fell into their car. A 7-year-old is badly hurt. The family was taking shelter from the storm," Burnett-Garraway told ABC News.

Storm conditions have made it difficult to evacuate patients. Three men died immediately after arriving at Princess Margaret Hospital, according to Burnett-Garraway.

A major pharmaceutical warehouse on Grand Bahama was also lost, according to Judy Terrell, director of communications for Public Hospitals Authority. Pharmaceutical and medical supplies have been "significantly impacted," especially for those with non-communicable diseases, like hypertension and diabetes.

Minnis said, "Our response will be day and night. Day after day, week after week, month after month, until the lives of our people return to some degree of normalcy."

ABC News' Steve Osunsami, Chris Donato, Max Golembo, Melissa Griffin, Reed McDonough, Marcus Moore and Stephanie Wash contributed to this report.