The National Hurricane Center named a low pressure system off of Mid-Atlantic east coast Subtropical Depression 4, and it could briefly become Subtropical Storm Dolly southeast of New England on Tuesday before heading out to sea and weakening.
The NHC said it had been watching the system since late last week when it emerged off the U.S. east coast. The storm would be moving over a warm patch of the Gulf Stream late Monday into Tuesday, enabling it to gather maximum winds of 40 mph in order to be named.
After that, it should move into sharply cooler water around 36 hours or so, gradually weakening and dissipating, the NHC said.
If it becomes Dolly, it will be the second-earliest ‘D’ storm to form. The Earliest 4th Atlantic named storm on record is Danielle (6/20/2016).