Subtropical Depression Four has formed well offshore of the U.S. East Coast and is forecast to move away from land, the U.S. National Hurricane Center (NHC) said on Monday.
It is located about 310 miles (495 kilometers) southeast of Nantucket, Massachusetts, packing maximum sustained winds of 35 miles per hour (55 kph), the NHC said.
"Some slight strengthening is possible tonight and early Tuesday, and the subtropical depression could briefly become a subtropical storm," the Miami-based weather forecaster added.
It is not on course to make landfall on the western side of the Atlantic but may affect shipping.
(Reporting by Sumita Layek in Bengaluru; Editing by Sandra Maler)
