"Gradual development of this system is still expected, and it will likely become a tropical or subtropical storm on Saturday when it is located near the northwestern Bahamas".
According to the National Hurricane Center, the tropical depression is moving toward the northeast near 14 miles per hour (22 km/h). The NHC intensity forecast calls for the system to become Tropical Storm Arthur - the first named tropical storm of 2020 - tonight or on Sunday, with continued slow strengthening as it nears the North Carolina coast.
This system is expected to move across the Outer Banks of North Carolina on Monday.
A tropical storm warning means that tropical storm conditions are expected within 36 hours.
Meanwhile, Arthur is expected to generate swells affecting portions of the southern United States, which will spread along the mid-Atlantic coast over the coming days.
Maximum sustained winds are near 35 miles per hour with higher gusts. It will move near or just east of the coast of North Carolina on Monday.
For more information on Tropical Storm Arthur and everything tropics related, stay with the KATC storm team for the very latest.
The Atlantic hurricane season officially begins on June 1 but there have been early-season storms every year since 2015.
Localized storm surge and flooding are also possible in the area, the NWS says.
That's when more than 20 tornadoes touched down in SC, with eight confirmed in the Midlands region - the most significant outbreak for the area since March 28, 1984, according to the NWS. Unsafe marine conditions are also expected, with seas building to 8 to 10 feet, creating treacherous conditions for mariners.
"Rough seas and gusty winds will expand northward to the upper mid-Atlantic coast late Monday through Tuesday as the storm drifts eastward and perhaps stalls over the open water", Duff said.
Mr Caines added, Due to Covid-19, the Emergency Measures Organisation has been meeting on a regular basis, and tomorrow as part of our normally scheduled meeting, Tropical Storm Arthur will feature prominently in our discussions.. Street flooding was reported across the Miami metro area.
Thursday was the second wettest May day on record for the city of Marathon in the Florida Keys. The heavy rains are not expected to have an impact on central areas. Marathon picked up a total of 6.45 inches from May 14-15, when the normal precipitation for all of May is 3.35 inches.