Danny made landfall as a tropical storm Monday evening on Pritchards Island, South Carolina, just north of Hilton Head, the NHC said.
As of late Monday night, Danny was about 100 miles west of Charleston.
The fourth named storm of the 2021 season, Danny developed into a tropical depression late Monday morning and a tropical storm by mid-afternoon. The storm developed just off the coast of South Carolina, so it had little time to gain strength before making landfall.
All tropical storm warnings have been discontinued and Danny is expected to dissipate Tuesday, the hurricane center said.
It was moving west-northwest at 15 mph and was forecast to bring up to two inches of rain with locally higher amounts in coastal regions of Georgia and southern South Carolina overnight.
“This region has been dry, limiting potential widespread flooding impacts, however, local flooding impacts, especially in urban areas along the southern South Carolina and Georgia coast, cannot be ruled out at this time,” the NHC said.
Typical early season tropical activity
Hurricane season officially began on June 1, but storms in the early season have become more persistent.
As the season progresses into August, storm initiation begins to shift toward the mid-Atlantic and off the western coast of Africa, where tropical waves make their way northwestward, typically strengthening as they enter the Caribbean. Hurricanes become more likely, and much more frequent.
The peak of hurricane season typically lies in September for the United States, when landfalling hurricanes in the Gulf and up the East Coast ramp up significantly. Initiation happens within the Gulf of Mexico, as well as off the west coast of Africa.
Aside from Danny, a tropical disturbance in the central Atlantic has been producing thunderstorms and showers since last week.
Formation likelihood is low for the next 48 hours at 20%, with a 40% chance of formation over the next five days.
CNN’s Taylor Ward contributed to this report.