The National Hurricane Center is watching the newly-designated Subtropical Depression Four.
The system, which formed "well offshore of the U.S. East Coast" as the NHC put it, packed maximum winds of 35 miles per hour while moving east-northeast at nine miles per hour.
The subtropical depression could briefly become a subtropical storm on Tuesday before weakening. If that were to happen, it would be named Dolly.
The system is not expected to impact the United States, though some impacts may be felt in eastern Newfoundland island later this week.
In the Gulf, Caribbean and other parts of the Atlantic, the NHC does not expect any tropical development over the next five days.