Miami: A storm moving closer to the US East Coast will deliver tropical storm conditions to North Carolina Friday before making landfall Saturday, the National Hurricane Center said.
The storm was off the coast of South Carolina and North Carolina with top sustained winds of 50 mph (85 kph).
A storm surge watch was in effect, with surges between 3 and 5 feet (0.9 to 1.5 metres) forecast for parts of North Carolina, the centre reported.
As of Friday morning, the storm was located about 330 miles (530 kilometres) southeast of Charleston, South Carolina, and about 325 miles (525 kilometres) south Cape Hatteras, North Carolina, and moving north around 14 mph (22 kph), the centre said.
Rainfall of 3 to 5 inches (7.6 to 12.7 centimetres), with localised amounts up to 7 inches (17.7 centimetres), was expected across eastern North Carolina and into southeast Virginia through Saturday, the centre said.
Though the system had reached tropical storm strength, it was yet to be given a name and the centre was still referring to it as Potential Tropical Cyclone Sixteen Friday morning.
The hurricane centre defines a potential tropical cyclone as a disturbance posing a threat of tropical storm or hurricane conditions to land within 48 hours.
Meteorologist Maria Torres, a public affairs officer with the Miami-based centre, said people along the Atlantic coast need to watch the storm’s progress, gather supplies and make preparations for its arrival.
“This will bring some tropical storm force winds and storm surge along with the high winds to the East Coast through the weekend, mainly from the Southeast to the Mid-Atlantic states,” she told The Associated Press.
The tropical storm warning was in effect from Cape Fear, North Carolina, to Fenwick Island, Delaware.
It also includes the Chesapeake Bay south of North Beach, Tidal Potomac south of Cobb Island and Albemarle and Pamlico Sounds. Storm surge warnings were in effect for areas throughout the region, the hurricane centre said.
Virginia emergency management officials warned of heavy rain, high winds and flooding in the next few days.
The Virginia Department of Emergency Management said on social media Thursday that officials are coordinating with local weather service offices to watch the system developing off the coast.
Officials called on residents to prepare for the storm and impacts on the region throughout the weekend.
North Carolina Emergency Management warned large swells from distant Hurricane Nigel also would reach the state’s coast Thursday, boosting the rip current risk.
The combination of those swells and the low-pressure system could mean additional ocean overwash, beach erosion and coastal flooding.
The hurricane centre said storm surge between 2 and 4 feet (0.6 to 1.2 metres) was expected.
A storm surge warning was in effect from Duck, North Carolina, to Chincoteague Virginia, including Chesapeake Bay south of Windmill Point, and for the Neuse River, the Pamlico River, and portions of Pamlico Sound.
A storm surge watch also was issued from Surf City in North Carolina to Duck, North Carolina, along with Chesapeake Bay north of Windmill Point to Smith Point, the Tidal Potomac south of Colonial Beach and Albemarle and the remainder of Pamlico Sound.
Meanwhile, Hurricane Nigel was downgraded to a post-tropical cyclone centred about 640 miles (1,030 kilometres) northwest of the Azores with maximum sustained winds of 70 mph (110 kph).
There were no associated coastal watches or warnings as the storm moved northeast at 37 mph (59 kph), the hurricane centre said in its final update on the system Friday morning.
AP